15028: Update cwltool/schema-salad deps, fix tests
[arvados.git] / sdk / cwl / tests / test_submit.py
index 8b7e4af81627ac6538783d0e924450ea994d5976..5f92cee942aca33060cd638a3a67376e28ae85ae 100644 (file)
@@ -2,8 +2,14 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+from future import standard_library
+standard_library.install_aliases()
+from builtins import object
+from builtins import str
+from future.utils import viewvalues
+
 import copy
-import cStringIO
+import io
 import functools
 import hashlib
 import json
@@ -12,9 +18,21 @@ import mock
 import sys
 import unittest
 
+from io import BytesIO
+
+# StringIO.StringIO and io.StringIO have different behavior write() is
+# called with both python2 (byte) strings and unicode strings
+# (specifically there's some logging in cwltool that causes trouble).
+# This isn't a problem on python3 because all string are unicode.
+if sys.version_info[0] < 3:
+    from StringIO import StringIO
+else:
+    from io import StringIO
+
 import arvados
 import arvados.collection
 import arvados_cwl
+import arvados_cwl.executor
 import arvados_cwl.runner
 import arvados.keep
 
@@ -32,7 +50,7 @@ def stubs(func):
     @mock.patch("arvados.keep.KeepClient")
     @mock.patch("arvados.events.subscribe")
     def wrapped(self, events, keep_client1, keep_client2, keepdocker, *args, **kwargs):
-        class Stubs:
+        class Stubs(object):
             pass
         stubs = Stubs()
         stubs.events = events
@@ -46,16 +64,35 @@ def stubs(func):
         keep_client2.put.side_effect = putstub
 
         stubs.keep_client = keep_client2
-        stubs.keepdocker.return_value = [("zzzzz-4zz18-zzzzzzzzzzzzzz3", "")]
+        stubs.docker_images = {
+            "arvados/jobs:"+arvados_cwl.__version__: [("zzzzz-4zz18-zzzzzzzzzzzzzd3", "")],
+            "debian:8": [("zzzzz-4zz18-zzzzzzzzzzzzzd4", "")],
+            "arvados/jobs:123": [("zzzzz-4zz18-zzzzzzzzzzzzzd5", "")],
+            "arvados/jobs:latest": [("zzzzz-4zz18-zzzzzzzzzzzzzd6", "")],
+        }
+        def kd(a, b, image_name=None, image_tag=None):
+            return stubs.docker_images.get("%s:%s" % (image_name, image_tag), [])
+        stubs.keepdocker.side_effect = kd
+
         stubs.fake_user_uuid = "zzzzz-tpzed-zzzzzzzzzzzzzzz"
+        stubs.fake_container_uuid = "zzzzz-dz642-zzzzzzzzzzzzzzz"
+
+        if sys.version_info[0] < 3:
+            stubs.capture_stdout = BytesIO()
+        else:
+            stubs.capture_stdout = StringIO()
 
         stubs.api = mock.MagicMock()
         stubs.api._rootDesc = get_rootDesc()
+        stubs.api._rootDesc["uuidPrefix"] = "zzzzz"
 
         stubs.api.users().current().execute.return_value = {
             "uuid": stubs.fake_user_uuid,
         }
         stubs.api.collections().list().execute.return_value = {"items": []}
+        stubs.api.containers().current().execute.return_value = {
+            "uuid": stubs.fake_container_uuid,
+        }
 
         class CollectionExecute(object):
             def __init__(self, exe):
@@ -64,18 +101,18 @@ def stubs(func):
                 return self.exe
 
         def collection_createstub(created_collections, body, ensure_unique_name=None):
-            mt = body["manifest_text"]
-            uuid = "zzzzz-4zz18-zzzzzzzzzzzzzz%d" % len(created_collections)
+            mt = body["manifest_text"].encode('utf-8')
+            uuid = "zzzzz-4zz18-zzzzzzzzzzzzzx%d" % len(created_collections)
             pdh = "%s+%i" % (hashlib.md5(mt).hexdigest(), len(mt))
             created_collections[uuid] = {
                 "uuid": uuid,
                 "portable_data_hash": pdh,
-                "manifest_text": mt
+                "manifest_text": mt.decode('utf-8')
             }
             return CollectionExecute(created_collections[uuid])
 
         def collection_getstub(created_collections, uuid):
-            for v in created_collections.itervalues():
+            for v in viewvalues(created_collections):
                 if uuid in (v["uuid"], v["portable_data_hash"]):
                     return CollectionExecute(v)
 
@@ -85,10 +122,35 @@ def stubs(func):
                 "portable_data_hash": "99999999999999999999999999999998+99",
                 "manifest_text": ". 99999999999999999999999999999998+99 0:0:file1.txt"
             },
+            "99999999999999999999999999999997+99": {
+                "uuid": "",
+                "portable_data_hash": "99999999999999999999999999999997+99",
+                "manifest_text": ". 99999999999999999999999999999997+99 0:0:file1.txt"
+            },
             "99999999999999999999999999999994+99": {
                 "uuid": "",
                 "portable_data_hash": "99999999999999999999999999999994+99",
                 "manifest_text": ". 99999999999999999999999999999994+99 0:0:expect_arvworkflow.cwl"
+            },
+            "zzzzz-4zz18-zzzzzzzzzzzzzd3": {
+                "uuid": "zzzzz-4zz18-zzzzzzzzzzzzzd3",
+                "portable_data_hash": "999999999999999999999999999999d3+99",
+                "manifest_text": ""
+            },
+            "zzzzz-4zz18-zzzzzzzzzzzzzd4": {
+                "uuid": "zzzzz-4zz18-zzzzzzzzzzzzzd4",
+                "portable_data_hash": "999999999999999999999999999999d4+99",
+                "manifest_text": ""
+            },
+            "zzzzz-4zz18-zzzzzzzzzzzzzd5": {
+                "uuid": "zzzzz-4zz18-zzzzzzzzzzzzzd5",
+                "portable_data_hash": "999999999999999999999999999999d5+99",
+                "manifest_text": ""
+            },
+            "zzzzz-4zz18-zzzzzzzzzzzzzd6": {
+                "uuid": "zzzzz-4zz18-zzzzzzzzzzzzzd6",
+                "portable_data_hash": "999999999999999999999999999999d6+99",
+                "manifest_text": ""
             }
         }
         stubs.api.collections().create.side_effect = functools.partial(collection_createstub, created_collections)
@@ -113,7 +175,7 @@ def stubs(func):
         }
         stubs.expect_job_spec = {
             'runtime_constraints': {
-                'docker_image': 'arvados/jobs:'+arvados_cwl.__version__,
+                'docker_image': '999999999999999999999999999999d3+99',
                 'min_ram_mb_per_node': 1024
             },
             'script_parameters': {
@@ -132,11 +194,12 @@ def stubs(func):
                     "listing": [{
                         "basename": "renamed.txt",
                         "class": "File",
-                        "location": "keep:99999999999999999999999999999998+99/file1.txt"
+                        "location": "keep:99999999999999999999999999999998+99/file1.txt",
+                        "size": 0
                     }],
                     'class': 'Directory'
                 },
-                'cwl:tool': '3fffdeaa75e018172e1b583425f4ebff+60/workflow.cwl#main'
+                'cwl:tool': '57ad063d64c60dbddc027791f0649211+60/workflow.cwl#main'
             },
             'repository': 'arvados',
             'script_version': 'master',
@@ -150,7 +213,7 @@ def stubs(func):
             'owner_uuid': None,
             "components": {
                 "cwl-runner": {
-                    'runtime_constraints': {'docker_image': 'arvados/jobs:'+arvados_cwl.__version__, 'min_ram_mb_per_node': 1024},
+                    'runtime_constraints': {'docker_image': '999999999999999999999999999999d3+99', 'min_ram_mb_per_node': 1024},
                     'script_parameters': {
                         'y': {"value": {'basename': '99999999999999999999999999999998+99', 'location': 'keep:99999999999999999999999999999998+99', 'class': 'Directory'}},
                         'x': {"value": {
@@ -164,10 +227,11 @@ def stubs(func):
                                   {
                                       'basename': 'renamed.txt',
                                       'class': 'File', 'location':
-                                      'keep:99999999999999999999999999999998+99/file1.txt'
+                                      'keep:99999999999999999999999999999998+99/file1.txt',
+                                      'size': 0
                                   }
                               ]}},
-                        'cwl:tool': '3fffdeaa75e018172e1b583425f4ebff+60/workflow.cwl#main',
+                        'cwl:tool': '57ad063d64c60dbddc027791f0649211+60/workflow.cwl#main',
                         'arv:debug': True,
                         'arv:enable_reuse': True,
                         'arv:on_error': 'continue'
@@ -225,7 +289,8 @@ def stubs(func):
                         'z': {'basename': 'anonymous', 'class': 'Directory', 'listing': [
                             {'basename': 'renamed.txt',
                              'class': 'File',
-                             'location': 'keep:99999999999999999999999999999998+99/file1.txt'
+                             'location': 'keep:99999999999999999999999999999998+99/file1.txt',
+                             'size': 0
                             }
                         ]}
                     },
@@ -236,17 +301,17 @@ def stubs(func):
             'state': 'Committed',
             'command': ['arvados-cwl-runner', '--local', '--api=containers',
                         '--no-log-timestamps', '--disable-validate',
-                        '--eval-timeout=20', '--thread-count=4',
-                        '--enable-reuse', '--debug', '--on-error=continue',
+                        '--eval-timeout=20', '--thread-count=1',
+                        '--enable-reuse', "--collection-cache-size=256", '--debug', '--on-error=continue',
                         '/var/lib/cwl/workflow.json#main', '/var/lib/cwl/cwl.input.json'],
             'name': 'submit_wf.cwl',
-            'container_image': 'arvados/jobs:'+arvados_cwl.__version__,
+            'container_image': '999999999999999999999999999999d3+99',
             'output_path': '/var/spool/cwl',
             'cwd': '/var/spool/cwl',
             'runtime_constraints': {
                 'API': True,
                 'vcpus': 1,
-                'ram': 1024*1024*1024
+                'ram': (1024+256)*1024*1024
             },
             'use_existing': True,
             'properties': {},
@@ -270,58 +335,62 @@ def stubs(func):
 
 
 class TestSubmit(unittest.TestCase):
-    @mock.patch("arvados_cwl.runner.arv_docker_get_image")
+    @mock.patch("arvados_cwl.arvdocker.arv_docker_get_image")
     @mock.patch("time.sleep")
     @stubs
     def test_submit(self, stubs, tm, arvdock):
-        capture_stdout = cStringIO.StringIO()
+        def get_image(api_client, dockerRequirement, pull_image, project_uuid):
+            if dockerRequirement["dockerPull"] == 'arvados/jobs:'+arvados_cwl.__version__:
+                return '999999999999999999999999999999d3+99'
+            elif dockerRequirement["dockerPull"] == "debian:8":
+                return '999999999999999999999999999999d4+99'
+        arvdock.side_effect = get_image
+
         exited = arvados_cwl.main(
             ["--submit", "--no-wait", "--api=jobs", "--debug",
              "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-            capture_stdout, sys.stderr, api_client=stubs.api)
-        self.assertEqual(exited, 0)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
 
         stubs.api.collections().create.assert_has_calls([
             mock.call(body=JsonDiffMatcher({
                 'manifest_text':
                 '. 5bcc9fe8f8d5992e6cf418dc7ce4dbb3+16 0:16:blub.txt\n',
                 'replication_desired': None,
-                'name': 'submit_tool.cwl dependencies',
-            }), ensure_unique_name=True),
+                'name': 'submit_tool.cwl dependencies (5d373e7629203ce39e7c22af98a0f881+52)',
+            }), ensure_unique_name=False),
             mock.call(body=JsonDiffMatcher({
                 'manifest_text':
                 '. 979af1245a12a1fed634d4222473bfdc+16 0:16:blorp.txt\n',
                 'replication_desired': None,
-                'name': 'submit_wf.cwl input',
-            }), ensure_unique_name=True),
+                'name': 'submit_wf.cwl input (169f39d466a5438ac4a90e779bf750c7+53)',
+            }), ensure_unique_name=False),
             mock.call(body=JsonDiffMatcher({
                 'manifest_text':
-                '. 61df2ed9ee3eb7dd9b799e5ca35305fa+1217 0:1217:workflow.cwl\n',
+                ". 68089141fbf7e020ac90a9d6a575bc8f+1312 0:1312:workflow.cwl\n",
                 'replication_desired': None,
                 'name': 'submit_wf.cwl',
             }), ensure_unique_name=True)        ])
 
         arvdock.assert_has_calls([
             mock.call(stubs.api, {"class": "DockerRequirement", "dockerPull": "debian:8"}, True, None),
+            mock.call(stubs.api, {"class": "DockerRequirement", "dockerPull": "debian:8", 'http://arvados.org/cwl#dockerCollectionPDH': '999999999999999999999999999999d4+99'}, True, None),
             mock.call(stubs.api, {'dockerPull': 'arvados/jobs:'+arvados_cwl.__version__}, True, None)
         ])
 
         expect_pipeline = copy.deepcopy(stubs.expect_pipeline_instance)
         stubs.api.pipeline_instances().create.assert_called_with(
             body=JsonDiffMatcher(expect_pipeline))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_pipeline_uuid + '\n')
-
+        self.assertEqual(exited, 0)
 
     @mock.patch("time.sleep")
     @stubs
     def test_submit_no_reuse(self, stubs, tm):
-        capture_stdout = cStringIO.StringIO()
         exited = arvados_cwl.main(
             ["--submit", "--no-wait", "--api=jobs", "--debug", "--disable-reuse",
              "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-            capture_stdout, sys.stderr, api_client=stubs.api)
-        self.assertEqual(exited, 0)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
 
         expect_pipeline = copy.deepcopy(stubs.expect_pipeline_instance)
         expect_pipeline["components"]["cwl-runner"]["script_parameters"]["arv:enable_reuse"] = {"value": False}
@@ -329,8 +398,9 @@ class TestSubmit(unittest.TestCase):
 
         stubs.api.pipeline_instances().create.assert_called_with(
             body=JsonDiffMatcher(expect_pipeline))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_pipeline_uuid + '\n')
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_error_when_multiple_storage_classes_specified(self, stubs):
@@ -344,49 +414,44 @@ class TestSubmit(unittest.TestCase):
     @mock.patch("time.sleep")
     @stubs
     def test_submit_on_error(self, stubs, tm):
-        capture_stdout = cStringIO.StringIO()
         exited = arvados_cwl.main(
             ["--submit", "--no-wait", "--api=jobs", "--debug", "--on-error=stop",
              "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-            capture_stdout, sys.stderr, api_client=stubs.api)
-        self.assertEqual(exited, 0)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
 
         expect_pipeline = copy.deepcopy(stubs.expect_pipeline_instance)
         expect_pipeline["components"]["cwl-runner"]["script_parameters"]["arv:on_error"] = "stop"
 
         stubs.api.pipeline_instances().create.assert_called_with(
             body=JsonDiffMatcher(expect_pipeline))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_pipeline_uuid + '\n')
-
+        self.assertEqual(exited, 0)
 
     @mock.patch("time.sleep")
     @stubs
     def test_submit_runner_ram(self, stubs, tm):
-        capture_stdout = cStringIO.StringIO()
         exited = arvados_cwl.main(
             ["--submit", "--no-wait", "--debug", "--submit-runner-ram=2048",
              "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-            capture_stdout, sys.stderr, api_client=stubs.api)
-        self.assertEqual(exited, 0)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
 
         expect_pipeline = copy.deepcopy(stubs.expect_pipeline_instance)
         expect_pipeline["components"]["cwl-runner"]["runtime_constraints"]["min_ram_mb_per_node"] = 2048
 
         stubs.api.pipeline_instances().create.assert_called_with(
             body=JsonDiffMatcher(expect_pipeline))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_pipeline_uuid + '\n')
-
+        self.assertEqual(exited, 0)
 
     @mock.patch("time.sleep")
     @stubs
     def test_submit_invalid_runner_ram(self, stubs, tm):
-        capture_stdout = cStringIO.StringIO()
         exited = arvados_cwl.main(
             ["--submit", "--no-wait", "--debug", "--submit-runner-ram=-2048",
              "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-            capture_stdout, sys.stderr, api_client=stubs.api)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
         self.assertEqual(exited, 1)
 
     @mock.patch("time.sleep")
@@ -394,30 +459,27 @@ class TestSubmit(unittest.TestCase):
     def test_submit_output_name(self, stubs, tm):
         output_name = "test_output_name"
 
-        capture_stdout = cStringIO.StringIO()
         exited = arvados_cwl.main(
             ["--submit", "--no-wait", "--debug", "--output-name", output_name,
              "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-            capture_stdout, sys.stderr, api_client=stubs.api)
-        self.assertEqual(exited, 0)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
 
         expect_pipeline = copy.deepcopy(stubs.expect_pipeline_instance)
         expect_pipeline["components"]["cwl-runner"]["script_parameters"]["arv:output_name"] = output_name
 
         stubs.api.pipeline_instances().create.assert_called_with(
             body=JsonDiffMatcher(expect_pipeline))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_pipeline_uuid + '\n')
-
+        self.assertEqual(exited, 0)
 
     @mock.patch("time.sleep")
     @stubs
     def test_submit_pipeline_name(self, stubs, tm):
-        capture_stdout = cStringIO.StringIO()
         exited = arvados_cwl.main(
             ["--submit", "--no-wait", "--debug", "--name=hello job 123",
              "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-            capture_stdout, sys.stderr, api_client=stubs.api)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
         self.assertEqual(exited, 0)
 
         expect_pipeline = copy.deepcopy(stubs.expect_pipeline_instance)
@@ -425,7 +487,7 @@ class TestSubmit(unittest.TestCase):
 
         stubs.api.pipeline_instances().create.assert_called_with(
             body=JsonDiffMatcher(expect_pipeline))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_pipeline_uuid + '\n')
 
     @mock.patch("time.sleep")
@@ -433,11 +495,10 @@ class TestSubmit(unittest.TestCase):
     def test_submit_output_tags(self, stubs, tm):
         output_tags = "tag0,tag1,tag2"
 
-        capture_stdout = cStringIO.StringIO()
         exited = arvados_cwl.main(
             ["--submit", "--no-wait", "--debug", "--output-tags", output_tags,
              "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-            capture_stdout, sys.stderr, api_client=stubs.api)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
         self.assertEqual(exited, 0)
 
         expect_pipeline = copy.deepcopy(stubs.expect_pipeline_instance)
@@ -445,7 +506,7 @@ class TestSubmit(unittest.TestCase):
 
         stubs.api.pipeline_instances().create.assert_called_with(
             body=JsonDiffMatcher(expect_pipeline))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_pipeline_uuid + '\n')
 
     @mock.patch("time.sleep")
@@ -467,79 +528,69 @@ class TestSubmit(unittest.TestCase):
 
     @stubs
     def test_submit_container(self, stubs):
-        capture_stdout = cStringIO.StringIO()
-        try:
-            exited = arvados_cwl.main(
-                ["--submit", "--no-wait", "--api=containers", "--debug",
-                 "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-                capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
-            self.assertEqual(exited, 0)
-        except:
-            logging.exception("")
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug",
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
 
         stubs.api.collections().create.assert_has_calls([
             mock.call(body=JsonDiffMatcher({
                 'manifest_text':
                 '. 5bcc9fe8f8d5992e6cf418dc7ce4dbb3+16 0:16:blub.txt\n',
                 'replication_desired': None,
-                'name': 'submit_tool.cwl dependencies',
-            }), ensure_unique_name=True),
+                'name': 'submit_tool.cwl dependencies (5d373e7629203ce39e7c22af98a0f881+52)',
+            }), ensure_unique_name=False),
             mock.call(body=JsonDiffMatcher({
                 'manifest_text':
                 '. 979af1245a12a1fed634d4222473bfdc+16 0:16:blorp.txt\n',
                 'replication_desired': None,
-                'name': 'submit_wf.cwl input',
-            }), ensure_unique_name=True)])
+                'name': 'submit_wf.cwl input (169f39d466a5438ac4a90e779bf750c7+53)',
+            }), ensure_unique_name=False)])
 
         expect_container = copy.deepcopy(stubs.expect_container_spec)
         stubs.api.container_requests().create.assert_called_with(
             body=JsonDiffMatcher(expect_container))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_container_request_uuid + '\n')
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_submit_container_no_reuse(self, stubs):
-        capture_stdout = cStringIO.StringIO()
-        try:
-            exited = arvados_cwl.main(
-                ["--submit", "--no-wait", "--api=containers", "--debug", "--disable-reuse",
-                 "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-                capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
-            self.assertEqual(exited, 0)
-        except:
-            logging.exception("")
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug", "--disable-reuse",
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
 
         expect_container = copy.deepcopy(stubs.expect_container_spec)
         expect_container["command"] = [
             'arvados-cwl-runner', '--local', '--api=containers',
             '--no-log-timestamps', '--disable-validate',
-            '--eval-timeout=20', '--thread-count=4',
-            '--disable-reuse', '--debug', '--on-error=continue',
+            '--eval-timeout=20', '--thread-count=1',
+            '--disable-reuse', "--collection-cache-size=256",
+            '--debug', '--on-error=continue',
             '/var/lib/cwl/workflow.json#main', '/var/lib/cwl/cwl.input.json']
         expect_container["use_existing"] = False
 
         stubs.api.container_requests().create.assert_called_with(
             body=JsonDiffMatcher(expect_container))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_container_request_uuid + '\n')
-
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_submit_container_reuse_disabled_by_workflow(self, stubs):
-        capture_stdout = cStringIO.StringIO()
-
         exited = arvados_cwl.main(
             ["--submit", "--no-wait", "--api=containers", "--debug",
              "tests/wf/submit_wf_no_reuse.cwl", "tests/submit_test_job.json"],
-            capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
         self.assertEqual(exited, 0)
 
         expect_container = copy.deepcopy(stubs.expect_container_spec)
         expect_container["command"] = [
             'arvados-cwl-runner', '--local', '--api=containers',
             '--no-log-timestamps', '--disable-validate',
-            '--eval-timeout=20', '--thread-count=4',
-            '--disable-reuse', '--debug', '--on-error=continue',
+            '--eval-timeout=20', '--thread-count=1',
+            '--disable-reuse', "--collection-cache-size=256", '--debug', '--on-error=continue',
             '/var/lib/cwl/workflow.json#main', '/var/lib/cwl/cwl.input.json']
         expect_container["use_existing"] = False
         expect_container["name"] = "submit_wf_no_reuse.cwl"
@@ -556,90 +607,79 @@ class TestSubmit(unittest.TestCase):
 
         stubs.api.container_requests().create.assert_called_with(
             body=JsonDiffMatcher(expect_container))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_container_request_uuid + '\n')
 
 
     @stubs
     def test_submit_container_on_error(self, stubs):
-        capture_stdout = cStringIO.StringIO()
-        try:
-            exited = arvados_cwl.main(
-                ["--submit", "--no-wait", "--api=containers", "--debug", "--on-error=stop",
-                 "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-                capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
-            self.assertEqual(exited, 0)
-        except:
-            logging.exception("")
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug", "--on-error=stop",
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
 
         expect_container = copy.deepcopy(stubs.expect_container_spec)
         expect_container["command"] = ['arvados-cwl-runner', '--local', '--api=containers',
                                        '--no-log-timestamps', '--disable-validate',
-                                       '--eval-timeout=20', '--thread-count=4',
-                                       '--enable-reuse', '--debug', '--on-error=stop',
+                                       '--eval-timeout=20', '--thread-count=1',
+                                       '--enable-reuse', "--collection-cache-size=256",
+                                       '--debug', '--on-error=stop',
                                        '/var/lib/cwl/workflow.json#main', '/var/lib/cwl/cwl.input.json']
 
         stubs.api.container_requests().create.assert_called_with(
             body=JsonDiffMatcher(expect_container))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_container_request_uuid + '\n')
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_submit_container_output_name(self, stubs):
         output_name = "test_output_name"
 
-        capture_stdout = cStringIO.StringIO()
-        try:
-            exited = arvados_cwl.main(
-                ["--submit", "--no-wait", "--api=containers", "--debug", "--output-name", output_name,
-                 "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-                capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
-            self.assertEqual(exited, 0)
-        except:
-            logging.exception("")
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug", "--output-name", output_name,
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
 
         expect_container = copy.deepcopy(stubs.expect_container_spec)
         expect_container["command"] = ['arvados-cwl-runner', '--local', '--api=containers',
                                        '--no-log-timestamps', '--disable-validate',
-                                       '--eval-timeout=20', '--thread-count=4',
-                                       '--enable-reuse',
+                                       '--eval-timeout=20', '--thread-count=1',
+                                       '--enable-reuse', "--collection-cache-size=256",
                                        "--output-name="+output_name, '--debug', '--on-error=continue',
                                        '/var/lib/cwl/workflow.json#main', '/var/lib/cwl/cwl.input.json']
         expect_container["output_name"] = output_name
 
         stubs.api.container_requests().create.assert_called_with(
             body=JsonDiffMatcher(expect_container))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_container_request_uuid + '\n')
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_submit_storage_classes(self, stubs):
-        capture_stdout = cStringIO.StringIO()
-        try:
-            exited = arvados_cwl.main(
-                ["--debug", "--submit", "--no-wait", "--api=containers", "--storage-classes=foo",
-                 "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-                capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
-            self.assertEqual(exited, 0)
-        except:
-            logging.exception("")
+        exited = arvados_cwl.main(
+            ["--debug", "--submit", "--no-wait", "--api=containers", "--storage-classes=foo",
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
 
         expect_container = copy.deepcopy(stubs.expect_container_spec)
         expect_container["command"] = ['arvados-cwl-runner', '--local', '--api=containers',
                                        '--no-log-timestamps', '--disable-validate',
-                                       '--eval-timeout=20', '--thread-count=4',
-                                       '--enable-reuse', "--debug",
+                                       '--eval-timeout=20', '--thread-count=1',
+                                       '--enable-reuse', "--collection-cache-size=256", "--debug",
                                        "--storage-classes=foo", '--on-error=continue',
                                        '/var/lib/cwl/workflow.json#main', '/var/lib/cwl/cwl.input.json']
 
         stubs.api.container_requests().create.assert_called_with(
             body=JsonDiffMatcher(expect_container))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_container_request_uuid + '\n')
+        self.assertEqual(exited, 0)
 
     @mock.patch("arvados_cwl.task_queue.TaskQueue")
     @mock.patch("arvados_cwl.arvworkflow.ArvadosWorkflow.job")
-    @mock.patch("arvados_cwl.ArvCwlRunner.make_output_collection", return_value = (None, None))
+    @mock.patch("arvados_cwl.executor.ArvCwlExecutor.make_output_collection", return_value = (None, None))
     @stubs
     def test_storage_classes_correctly_propagate_to_make_output_collection(self, stubs, make_output, job, tq):
         def set_final_output(job_order, output_callback, runtimeContext):
@@ -647,20 +687,17 @@ class TestSubmit(unittest.TestCase):
             return []
         job.side_effect = set_final_output
 
-        try:
-            exited = arvados_cwl.main(
-                ["--debug", "--local", "--storage-classes=foo",
-                 "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-                sys.stdin, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
-            self.assertEqual(exited, 0)
-        except:
-            logging.exception("")
+        exited = arvados_cwl.main(
+            ["--debug", "--local", "--storage-classes=foo",
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            sys.stdin, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
 
         make_output.assert_called_with(u'Output of submit_wf.cwl', ['foo'], '', 'zzzzz-4zz18-zzzzzzzzzzzzzzzz')
+        self.assertEqual(exited, 0)
 
     @mock.patch("arvados_cwl.task_queue.TaskQueue")
     @mock.patch("arvados_cwl.arvworkflow.ArvadosWorkflow.job")
-    @mock.patch("arvados_cwl.ArvCwlRunner.make_output_collection", return_value = (None, None))
+    @mock.patch("arvados_cwl.executor.ArvCwlExecutor.make_output_collection", return_value = (None, None))
     @stubs
     def test_default_storage_classes_correctly_propagate_to_make_output_collection(self, stubs, make_output, job, tq):
         def set_final_output(job_order, output_callback, runtimeContext):
@@ -668,140 +705,120 @@ class TestSubmit(unittest.TestCase):
             return []
         job.side_effect = set_final_output
 
-        try:
-            exited = arvados_cwl.main(
-                ["--debug", "--local",
-                 "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-                sys.stdin, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
-            self.assertEqual(exited, 0)
-        except:
-            logging.exception("")
+        exited = arvados_cwl.main(
+            ["--debug", "--local",
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            sys.stdin, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
 
         make_output.assert_called_with(u'Output of submit_wf.cwl', ['default'], '', 'zzzzz-4zz18-zzzzzzzzzzzzzzzz')
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_submit_container_output_ttl(self, stubs):
-        capture_stdout = cStringIO.StringIO()
-        try:
-            exited = arvados_cwl.main(
-                ["--submit", "--no-wait", "--api=containers", "--debug", "--intermediate-output-ttl", "3600",
-                 "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-                capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
-            self.assertEqual(exited, 0)
-        except:
-            logging.exception("")
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug", "--intermediate-output-ttl", "3600",
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
 
         expect_container = copy.deepcopy(stubs.expect_container_spec)
         expect_container["command"] = ['arvados-cwl-runner', '--local', '--api=containers',
                                        '--no-log-timestamps', '--disable-validate',
-                                       '--eval-timeout=20', '--thread-count=4',
-                                       '--enable-reuse', '--debug', '--on-error=continue',
+                                       '--eval-timeout=20', '--thread-count=1',
+                                       '--enable-reuse', "--collection-cache-size=256", '--debug',
+                                       '--on-error=continue',
                                        "--intermediate-output-ttl=3600",
                                        '/var/lib/cwl/workflow.json#main', '/var/lib/cwl/cwl.input.json']
 
         stubs.api.container_requests().create.assert_called_with(
             body=JsonDiffMatcher(expect_container))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_container_request_uuid + '\n')
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_submit_container_trash_intermediate(self, stubs):
-        capture_stdout = cStringIO.StringIO()
-        try:
-            exited = arvados_cwl.main(
-                ["--submit", "--no-wait", "--api=containers", "--debug", "--trash-intermediate",
-                 "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-                capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
-            self.assertEqual(exited, 0)
-        except:
-            logging.exception("")
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug", "--trash-intermediate",
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
+
 
         expect_container = copy.deepcopy(stubs.expect_container_spec)
         expect_container["command"] = ['arvados-cwl-runner', '--local', '--api=containers',
                                        '--no-log-timestamps', '--disable-validate',
-                                       '--eval-timeout=20', '--thread-count=4',
-                                       '--enable-reuse', '--debug', '--on-error=continue',
+                                       '--eval-timeout=20', '--thread-count=1',
+                                       '--enable-reuse', "--collection-cache-size=256",
+                                       '--debug', '--on-error=continue',
                                        "--trash-intermediate",
                                        '/var/lib/cwl/workflow.json#main', '/var/lib/cwl/cwl.input.json']
 
         stubs.api.container_requests().create.assert_called_with(
             body=JsonDiffMatcher(expect_container))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_container_request_uuid + '\n')
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_submit_container_output_tags(self, stubs):
         output_tags = "tag0,tag1,tag2"
 
-        capture_stdout = cStringIO.StringIO()
-        try:
-            exited = arvados_cwl.main(
-                ["--submit", "--no-wait", "--api=containers", "--debug", "--output-tags", output_tags,
-                 "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-                capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
-            self.assertEqual(exited, 0)
-        except:
-            logging.exception("")
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug", "--output-tags", output_tags,
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
 
         expect_container = copy.deepcopy(stubs.expect_container_spec)
         expect_container["command"] = ['arvados-cwl-runner', '--local', '--api=containers',
                                        '--no-log-timestamps', '--disable-validate',
-                                       '--eval-timeout=20', '--thread-count=4',
-                                       '--enable-reuse',
+                                       '--eval-timeout=20', '--thread-count=1',
+                                       '--enable-reuse', "--collection-cache-size=256",
                                        "--output-tags="+output_tags, '--debug', '--on-error=continue',
                                        '/var/lib/cwl/workflow.json#main', '/var/lib/cwl/cwl.input.json']
 
         stubs.api.container_requests().create.assert_called_with(
             body=JsonDiffMatcher(expect_container))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_container_request_uuid + '\n')
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_submit_container_runner_ram(self, stubs):
-        capture_stdout = cStringIO.StringIO()
-        try:
-            exited = arvados_cwl.main(
-                ["--submit", "--no-wait", "--api=containers", "--debug", "--submit-runner-ram=2048",
-                 "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-                capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
-            self.assertEqual(exited, 0)
-        except:
-            logging.exception("")
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug", "--submit-runner-ram=2048",
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
 
         expect_container = copy.deepcopy(stubs.expect_container_spec)
-        expect_container["runtime_constraints"]["ram"] = 2048*1024*1024
+        expect_container["runtime_constraints"]["ram"] = (2048+256)*1024*1024
 
         stubs.api.container_requests().create.assert_called_with(
             body=JsonDiffMatcher(expect_container))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_container_request_uuid + '\n')
+        self.assertEqual(exited, 0)
 
     @mock.patch("arvados.collection.CollectionReader")
     @mock.patch("time.sleep")
     @stubs
     def test_submit_file_keepref(self, stubs, tm, collectionReader):
-        capture_stdout = cStringIO.StringIO()
+        collectionReader().find.return_value = arvados.arvfile.ArvadosFile(mock.MagicMock(), "blorp.txt")
         exited = arvados_cwl.main(
             ["--submit", "--no-wait", "--api=containers", "--debug",
              "tests/wf/submit_keepref_wf.cwl"],
-            capture_stdout, sys.stderr, api_client=stubs.api)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
         self.assertEqual(exited, 0)
 
-
     @mock.patch("arvados.collection.CollectionReader")
     @mock.patch("time.sleep")
     @stubs
     def test_submit_keepref(self, stubs, tm, reader):
-        capture_stdout = cStringIO.StringIO()
-
         with open("tests/wf/expect_arvworkflow.cwl") as f:
             reader().open().__enter__().read.return_value = f.read()
 
         exited = arvados_cwl.main(
             ["--submit", "--no-wait", "--api=containers", "--debug",
              "keep:99999999999999999999999999999994+99/expect_arvworkflow.cwl#main", "-x", "XxX"],
-            capture_stdout, sys.stderr, api_client=stubs.api)
-        self.assertEqual(exited, 0)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
 
         expect_container = {
             'priority': 500,
@@ -827,17 +844,17 @@ class TestSubmit(unittest.TestCase):
             }, 'state': 'Committed',
             'output_path': '/var/spool/cwl',
             'name': 'expect_arvworkflow.cwl#main',
-            'container_image': 'arvados/jobs:'+arvados_cwl.__version__,
+            'container_image': '999999999999999999999999999999d3+99',
             'command': ['arvados-cwl-runner', '--local', '--api=containers',
                         '--no-log-timestamps', '--disable-validate',
-                        '--eval-timeout=20', '--thread-count=4',
-                        '--enable-reuse', '--debug', '--on-error=continue',
+                        '--eval-timeout=20', '--thread-count=1',
+                        '--enable-reuse', "--collection-cache-size=256", '--debug', '--on-error=continue',
                         '/var/lib/cwl/workflow/expect_arvworkflow.cwl#main', '/var/lib/cwl/cwl.input.json'],
             'cwd': '/var/spool/cwl',
             'runtime_constraints': {
                 'API': True,
                 'vcpus': 1,
-                'ram': 1073741824
+                'ram': 1342177280
             },
             'use_existing': True,
             'properties': {},
@@ -846,24 +863,21 @@ class TestSubmit(unittest.TestCase):
 
         stubs.api.container_requests().create.assert_called_with(
             body=JsonDiffMatcher(expect_container))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_container_request_uuid + '\n')
-
+        self.assertEqual(exited, 0)
 
     @mock.patch("arvados.collection.CollectionReader")
     @mock.patch("time.sleep")
     @stubs
     def test_submit_jobs_keepref(self, stubs, tm, reader):
-        capture_stdout = cStringIO.StringIO()
-
         with open("tests/wf/expect_arvworkflow.cwl") as f:
             reader().open().__enter__().read.return_value = f.read()
 
         exited = arvados_cwl.main(
             ["--submit", "--no-wait", "--api=jobs", "--debug",
              "keep:99999999999999999999999999999994+99/expect_arvworkflow.cwl#main", "-x", "XxX"],
-            capture_stdout, sys.stderr, api_client=stubs.api)
-        self.assertEqual(exited, 0)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
 
         expect_pipeline = copy.deepcopy(stubs.expect_pipeline_instance)
         expect_pipeline["components"]["cwl-runner"]["script_parameters"]["x"] = "XxX"
@@ -873,20 +887,18 @@ class TestSubmit(unittest.TestCase):
         expect_pipeline["name"] = "expect_arvworkflow.cwl#main"
         stubs.api.pipeline_instances().create.assert_called_with(
             body=JsonDiffMatcher(expect_pipeline))
+        self.assertEqual(exited, 0)
 
     @mock.patch("time.sleep")
     @stubs
     def test_submit_arvworkflow(self, stubs, tm):
-        capture_stdout = cStringIO.StringIO()
-
         with open("tests/wf/expect_arvworkflow.cwl") as f:
             stubs.api.workflows().get().execute.return_value = {"definition": f.read(), "name": "a test workflow"}
 
         exited = arvados_cwl.main(
             ["--submit", "--no-wait", "--api=containers", "--debug",
              "962eh-7fd4e-gkbzl62qqtfig37", "-x", "XxX"],
-            capture_stdout, sys.stderr, api_client=stubs.api)
-        self.assertEqual(exited, 0)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
 
         expect_container = {
             'priority': 500,
@@ -926,7 +938,11 @@ class TestSubmit(unittest.TestCase):
                                         'id': '#submit_tool.cwl/x'}
                                 ],
                                 'requirements': [
-                                    {'dockerPull': 'debian:8', 'class': 'DockerRequirement'}
+                                    {
+                                        'dockerPull': 'debian:8',
+                                        'class': 'DockerRequirement',
+                                        "http://arvados.org/cwl#dockerCollectionPDH": "999999999999999999999999999999d4+99"
+                                    }
                                 ],
                                 'id': '#submit_tool.cwl',
                                 'outputs': [],
@@ -945,17 +961,17 @@ class TestSubmit(unittest.TestCase):
             }, 'state': 'Committed',
             'output_path': '/var/spool/cwl',
             'name': 'a test workflow',
-            'container_image': 'arvados/jobs:'+arvados_cwl.__version__,
+            'container_image': "999999999999999999999999999999d3+99",
             'command': ['arvados-cwl-runner', '--local', '--api=containers',
                         '--no-log-timestamps', '--disable-validate',
-                        '--eval-timeout=20', '--thread-count=4',
-                        '--enable-reuse', '--debug', '--on-error=continue',
+                        '--eval-timeout=20', '--thread-count=1',
+                        '--enable-reuse', "--collection-cache-size=256", '--debug', '--on-error=continue',
                         '/var/lib/cwl/workflow.json#main', '/var/lib/cwl/cwl.input.json'],
             'cwd': '/var/spool/cwl',
             'runtime_constraints': {
                 'API': True,
                 'vcpus': 1,
-                'ram': 1073741824
+                'ram': 1342177280
             },
             'use_existing': True,
             'properties': {
@@ -966,175 +982,222 @@ class TestSubmit(unittest.TestCase):
 
         stubs.api.container_requests().create.assert_called_with(
             body=JsonDiffMatcher(expect_container))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_container_request_uuid + '\n')
-
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_submit_container_name(self, stubs):
-        capture_stdout = cStringIO.StringIO()
-        try:
-            exited = arvados_cwl.main(
-                ["--submit", "--no-wait", "--api=containers", "--debug", "--name=hello container 123",
-                 "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-                capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
-            self.assertEqual(exited, 0)
-        except:
-            logging.exception("")
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug", "--name=hello container 123",
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
 
         expect_container = copy.deepcopy(stubs.expect_container_spec)
         expect_container["name"] = "hello container 123"
 
         stubs.api.container_requests().create.assert_called_with(
             body=JsonDiffMatcher(expect_container))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_container_request_uuid + '\n')
+        self.assertEqual(exited, 0)
 
+    @stubs
+    def test_submit_missing_input(self, stubs):
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug",
+             "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
+        self.assertEqual(exited, 0)
+
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug",
+             "tests/wf/submit_wf.cwl", "tests/submit_test_job_missing.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
+        self.assertEqual(exited, 1)
 
     @stubs
     def test_submit_container_project(self, stubs):
         project_uuid = 'zzzzz-j7d0g-zzzzzzzzzzzzzzz'
-        capture_stdout = cStringIO.StringIO()
-        try:
-            exited = arvados_cwl.main(
-                ["--submit", "--no-wait", "--api=containers", "--debug", "--project-uuid="+project_uuid,
-                 "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-                capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
-            self.assertEqual(exited, 0)
-        except:
-            logging.exception("")
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug", "--project-uuid="+project_uuid,
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
 
         expect_container = copy.deepcopy(stubs.expect_container_spec)
         expect_container["owner_uuid"] = project_uuid
         expect_container["command"] = ['arvados-cwl-runner', '--local', '--api=containers',
                                        '--no-log-timestamps', '--disable-validate',
-                                       "--eval-timeout=20", "--thread-count=4",
-                                       '--enable-reuse', '--debug', '--on-error=continue',
+                                       "--eval-timeout=20", "--thread-count=1",
+                                       '--enable-reuse', "--collection-cache-size=256", '--debug',
+                                       '--on-error=continue',
                                        '--project-uuid='+project_uuid,
                                        '/var/lib/cwl/workflow.json#main', '/var/lib/cwl/cwl.input.json']
 
         stubs.api.container_requests().create.assert_called_with(
             body=JsonDiffMatcher(expect_container))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_container_request_uuid + '\n')
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_submit_container_eval_timeout(self, stubs):
-        project_uuid = 'zzzzz-j7d0g-zzzzzzzzzzzzzzz'
-        capture_stdout = cStringIO.StringIO()
-        try:
-            exited = arvados_cwl.main(
-                ["--submit", "--no-wait", "--api=containers", "--debug", "--eval-timeout=60",
-                 "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-                capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
-            self.assertEqual(exited, 0)
-        except:
-            logging.exception("")
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug", "--eval-timeout=60",
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
 
         expect_container = copy.deepcopy(stubs.expect_container_spec)
         expect_container["command"] = ['arvados-cwl-runner', '--local', '--api=containers',
                                        '--no-log-timestamps', '--disable-validate',
-                                       '--eval-timeout=60.0', '--thread-count=4',
-                                       '--enable-reuse', '--debug', '--on-error=continue',
+                                       '--eval-timeout=60.0', '--thread-count=1',
+                                       '--enable-reuse', "--collection-cache-size=256",
+                                       '--debug', '--on-error=continue',
                                        '/var/lib/cwl/workflow.json#main', '/var/lib/cwl/cwl.input.json']
 
         stubs.api.container_requests().create.assert_called_with(
             body=JsonDiffMatcher(expect_container))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_container_request_uuid + '\n')
+        self.assertEqual(exited, 0)
+
+    @stubs
+    def test_submit_container_collection_cache(self, stubs):
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug", "--collection-cache-size=500",
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
 
+        expect_container = copy.deepcopy(stubs.expect_container_spec)
+        expect_container["command"] = ['arvados-cwl-runner', '--local', '--api=containers',
+                                       '--no-log-timestamps', '--disable-validate',
+                                       '--eval-timeout=20', '--thread-count=1',
+                                       '--enable-reuse', "--collection-cache-size=500",
+                                       '--debug', '--on-error=continue',
+                                       '/var/lib/cwl/workflow.json#main', '/var/lib/cwl/cwl.input.json']
+        expect_container["runtime_constraints"]["ram"] = (1024+500)*1024*1024
+
+        stubs.api.container_requests().create.assert_called_with(
+            body=JsonDiffMatcher(expect_container))
+        self.assertEqual(stubs.capture_stdout.getvalue(),
+                         stubs.expect_container_request_uuid + '\n')
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_submit_container_thread_count(self, stubs):
-        project_uuid = 'zzzzz-j7d0g-zzzzzzzzzzzzzzz'
-        capture_stdout = cStringIO.StringIO()
-        try:
-            exited = arvados_cwl.main(
-                ["--submit", "--no-wait", "--api=containers", "--debug", "--thread-count=20",
-                 "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-                capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
-            self.assertEqual(exited, 0)
-        except:
-            logging.exception("")
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug", "--thread-count=20",
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
 
         expect_container = copy.deepcopy(stubs.expect_container_spec)
         expect_container["command"] = ['arvados-cwl-runner', '--local', '--api=containers',
                                        '--no-log-timestamps', '--disable-validate',
                                        '--eval-timeout=20', '--thread-count=20',
-                                       '--enable-reuse', '--debug', '--on-error=continue',
+                                       '--enable-reuse', "--collection-cache-size=256",
+                                       '--debug', '--on-error=continue',
                                        '/var/lib/cwl/workflow.json#main', '/var/lib/cwl/cwl.input.json']
 
         stubs.api.container_requests().create.assert_called_with(
             body=JsonDiffMatcher(expect_container))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_container_request_uuid + '\n')
-
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_submit_job_runner_image(self, stubs):
-        capture_stdout = cStringIO.StringIO()
-        try:
-            exited = arvados_cwl.main(
-                ["--submit", "--no-wait", "--api=jobs", "--debug", "--submit-runner-image=arvados/jobs:123",
-                 "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-                capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
-            self.assertEqual(exited, 0)
-        except:
-            logging.exception("")
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=jobs", "--debug", "--submit-runner-image=arvados/jobs:123",
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
 
-        stubs.expect_pipeline_instance["components"]["cwl-runner"]["runtime_constraints"]["docker_image"] = "arvados/jobs:123"
+        stubs.expect_pipeline_instance["components"]["cwl-runner"]["runtime_constraints"]["docker_image"] = "999999999999999999999999999999d5+99"
 
         expect_pipeline = copy.deepcopy(stubs.expect_pipeline_instance)
         stubs.api.pipeline_instances().create.assert_called_with(
             body=JsonDiffMatcher(expect_pipeline))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_pipeline_uuid + '\n')
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_submit_container_runner_image(self, stubs):
-        capture_stdout = cStringIO.StringIO()
-        try:
-            exited = arvados_cwl.main(
-                ["--submit", "--no-wait", "--api=containers", "--debug", "--submit-runner-image=arvados/jobs:123",
-                 "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-                capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
-            self.assertEqual(exited, 0)
-        except:
-            logging.exception("")
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug", "--submit-runner-image=arvados/jobs:123",
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
 
-        stubs.expect_container_spec["container_image"] = "arvados/jobs:123"
+        stubs.expect_container_spec["container_image"] = "999999999999999999999999999999d5+99"
 
         expect_container = copy.deepcopy(stubs.expect_container_spec)
         stubs.api.container_requests().create.assert_called_with(
             body=JsonDiffMatcher(expect_container))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_container_request_uuid + '\n')
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_submit_priority(self, stubs):
-        capture_stdout = cStringIO.StringIO()
-        try:
-            exited = arvados_cwl.main(
-                ["--submit", "--no-wait", "--api=containers", "--debug", "--priority=669",
-                 "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-                capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
-            self.assertEqual(exited, 0)
-        except:
-            logging.exception("")
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug", "--priority=669",
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
 
         stubs.expect_container_spec["priority"] = 669
 
         expect_container = copy.deepcopy(stubs.expect_container_spec)
         stubs.api.container_requests().create.assert_called_with(
             body=JsonDiffMatcher(expect_container))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_container_request_uuid + '\n')
+        self.assertEqual(exited, 0)
 
+    @stubs
+    def test_submit_wf_runner_resources(self, stubs):
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug",
+                "tests/wf/submit_wf_runner_resources.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
+
+        expect_container = copy.deepcopy(stubs.expect_container_spec)
+        expect_container["runtime_constraints"] = {
+            "API": True,
+            "vcpus": 2,
+            "ram": (2000+512) * 2**20
+        }
+        expect_container["name"] = "submit_wf_runner_resources.cwl"
+        expect_container["mounts"]["/var/lib/cwl/workflow.json"]["content"]["$graph"][1]["hints"] = [
+            {
+                "class": "http://arvados.org/cwl#WorkflowRunnerResources",
+                "coresMin": 2,
+                "ramMin": 2000,
+                "keep_cache": 512
+            }
+        ]
+        expect_container["mounts"]["/var/lib/cwl/workflow.json"]["content"]["$graph"][0]["$namespaces"] = {
+            "arv": "http://arvados.org/cwl#",
+        }
+        expect_container['command'] = ['arvados-cwl-runner', '--local', '--api=containers',
+                        '--no-log-timestamps', '--disable-validate',
+                        '--eval-timeout=20', '--thread-count=1',
+                        '--enable-reuse', "--collection-cache-size=512", '--debug', '--on-error=continue',
+                        '/var/lib/cwl/workflow.json#main', '/var/lib/cwl/cwl.input.json']
+
+        stubs.api.container_requests().create.assert_called_with(
+            body=JsonDiffMatcher(expect_container))
+        self.assertEqual(stubs.capture_stdout.getvalue(),
+                         stubs.expect_container_request_uuid + '\n')
+        self.assertEqual(exited, 0)
+
+    def tearDown(self):
+        arvados_cwl.arvdocker.arv_docker_clear_cache()
 
     @mock.patch("arvados.commands.keepdocker.find_one_image_hash")
     @mock.patch("cwltool.docker.DockerCommandLineJob.get_image")
     @mock.patch("arvados.api")
     def test_arvados_jobs_image(self, api, get_image, find_one_image_hash):
+        arvados_cwl.arvdocker.arv_docker_clear_cache()
+
         arvrunner = mock.MagicMock()
         arvrunner.project_uuid = ""
         api.return_value = mock.MagicMock()
@@ -1160,21 +1223,18 @@ class TestSubmit(unittest.TestCase):
                                                                               "properties": ""
                                                                           }], "items_available": 1, "offset": 0},)
         arvrunner.api.collections().create().execute.return_value = {"uuid": ""}
-        self.assertEqual("arvados/jobs:"+arvados_cwl.__version__,
+        arvrunner.api.collections().get().execute.return_value = {"uuid": "zzzzz-4zz18-zzzzzzzzzzzzzzb",
+                                                                  "portable_data_hash": "9999999999999999999999999999999b+99"}
+        self.assertEqual("9999999999999999999999999999999b+99",
                          arvados_cwl.runner.arvados_jobs_image(arvrunner, "arvados/jobs:"+arvados_cwl.__version__))
 
+
     @stubs
     def test_submit_secrets(self, stubs):
-        capture_stdout = cStringIO.StringIO()
-        try:
-            exited = arvados_cwl.main(
-                ["--submit", "--no-wait", "--api=containers", "--debug",
-                 "tests/wf/secret_wf.cwl", "tests/secret_test_job.yml"],
-                capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
-            self.assertEqual(exited, 0)
-        except:
-            logging.exception("")
-
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug",
+                "tests/wf/secret_wf.cwl", "tests/secret_test_job.yml"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
 
         expect_container = {
             "command": [
@@ -1184,14 +1244,15 @@ class TestSubmit(unittest.TestCase):
                 "--no-log-timestamps",
                 "--disable-validate",
                 "--eval-timeout=20",
-                '--thread-count=4',
+                '--thread-count=1',
                 "--enable-reuse",
+                "--collection-cache-size=256",
                 '--debug',
                 "--on-error=continue",
                 "/var/lib/cwl/workflow.json#main",
                 "/var/lib/cwl/cwl.input.json"
             ],
-            "container_image": "arvados/jobs:"+arvados_cwl.__version__,
+            "container_image": "999999999999999999999999999999d3+99",
             "cwd": "/var/spool/cwl",
             "mounts": {
                 "/var/lib/cwl/cwl.input.json": {
@@ -1253,7 +1314,8 @@ class TestSubmit(unittest.TestCase):
                                 "hints": [
                                     {
                                         "class": "DockerRequirement",
-                                        "dockerPull": "debian:8"
+                                        "dockerPull": "debian:8",
+                                        "http://arvados.org/cwl#dockerCollectionPDH": "999999999999999999999999999999d4+99"
                                     },
                                     {
                                         "class": "http://commonwl.org/cwltool#Secrets",
@@ -1312,7 +1374,7 @@ class TestSubmit(unittest.TestCase):
             "properties": {},
             "runtime_constraints": {
                 "API": True,
-                "ram": 1073741824,
+                "ram": 1342177280,
                 "vcpus": 1
             },
             "secret_mounts": {
@@ -1327,8 +1389,9 @@ class TestSubmit(unittest.TestCase):
 
         stubs.api.container_requests().create.assert_called_with(
             body=JsonDiffMatcher(expect_container))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_container_request_uuid + '\n')
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_submit_request_uuid(self, stubs):
@@ -1340,20 +1403,132 @@ class TestSubmit(unittest.TestCase):
             "state": "Queued"
         }
 
-        capture_stdout = cStringIO.StringIO()
-        try:
-            exited = arvados_cwl.main(
-                ["--submit", "--no-wait", "--api=containers", "--debug", "--submit-request-uuid=zzzzz-xvhdp-yyyyyyyyyyyyyyy",
-                 "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-                capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
-            self.assertEqual(exited, 0)
-        except:
-            logging.exception("")
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug", "--submit-request-uuid=zzzzz-xvhdp-yyyyyyyyyyyyyyy",
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
 
         stubs.api.container_requests().update.assert_called_with(
             uuid="zzzzz-xvhdp-yyyyyyyyyyyyyyy", body=JsonDiffMatcher(stubs.expect_container_spec))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_container_request_uuid + '\n')
+        self.assertEqual(exited, 0)
+
+    @stubs
+    def test_submit_container_cluster_id(self, stubs):
+        stubs.api._rootDesc["remoteHosts"]["zbbbb"] = "123"
+
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug", "--submit-runner-cluster=zbbbb",
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
+
+        expect_container = copy.deepcopy(stubs.expect_container_spec)
+
+        stubs.api.container_requests().create.assert_called_with(
+            body=JsonDiffMatcher(expect_container), cluster_id="zbbbb")
+        self.assertEqual(stubs.capture_stdout.getvalue(),
+                         stubs.expect_container_request_uuid + '\n')
+        self.assertEqual(exited, 0)
+
+    @stubs
+    def test_submit_validate_cluster_id(self, stubs):
+        stubs.api._rootDesc["remoteHosts"]["zbbbb"] = "123"
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug", "--submit-runner-cluster=zcccc",
+             "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
+        self.assertEqual(exited, 1)
+
+    @mock.patch("arvados.collection.CollectionReader")
+    @stubs
+    def test_submit_uuid_inputs(self, stubs, collectionReader):
+        collectionReader().find.return_value = arvados.arvfile.ArvadosFile(mock.MagicMock(), "file1.txt")
+        def list_side_effect(**kwargs):
+            m = mock.MagicMock()
+            if "count" in kwargs:
+                m.execute.return_value = {"items": [
+                    {"uuid": "zzzzz-4zz18-zzzzzzzzzzzzzzz", "portable_data_hash": "99999999999999999999999999999998+99"}
+                ]}
+            else:
+                m.execute.return_value = {"items": []}
+            return m
+        stubs.api.collections().list.side_effect = list_side_effect
+
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug",
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job_with_uuids.json"],
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api, keep_client=stubs.keep_client)
+
+        expect_container = copy.deepcopy(stubs.expect_container_spec)
+        expect_container['mounts']['/var/lib/cwl/cwl.input.json']['content']['y']['basename'] = 'zzzzz-4zz18-zzzzzzzzzzzzzzz'
+        expect_container['mounts']['/var/lib/cwl/cwl.input.json']['content']['y']['http://arvados.org/cwl#collectionUUID'] = 'zzzzz-4zz18-zzzzzzzzzzzzzzz'
+        expect_container['mounts']['/var/lib/cwl/cwl.input.json']['content']['z']['listing'][0]['http://arvados.org/cwl#collectionUUID'] = 'zzzzz-4zz18-zzzzzzzzzzzzzzz'
+
+        stubs.api.collections().list.assert_has_calls([
+            mock.call(count='none',
+                      filters=[['uuid', 'in', ['zzzzz-4zz18-zzzzzzzzzzzzzzz']]],
+                      select=['uuid', 'portable_data_hash'])])
+        stubs.api.container_requests().create.assert_called_with(
+            body=JsonDiffMatcher(expect_container))
+        self.assertEqual(stubs.capture_stdout.getvalue(),
+                         stubs.expect_container_request_uuid + '\n')
+        self.assertEqual(exited, 0)
+
+    @stubs
+    def test_submit_mismatched_uuid_inputs(self, stubs):
+        def list_side_effect(**kwargs):
+            m = mock.MagicMock()
+            if "count" in kwargs:
+                m.execute.return_value = {"items": [
+                    {"uuid": "zzzzz-4zz18-zzzzzzzzzzzzzzz", "portable_data_hash": "99999999999999999999999999999997+99"}
+                ]}
+            else:
+                m.execute.return_value = {"items": []}
+            return m
+        stubs.api.collections().list.side_effect = list_side_effect
+
+        for infile in ("tests/submit_test_job_with_mismatched_uuids.json", "tests/submit_test_job_with_inconsistent_uuids.json"):
+            capture_stderr = StringIO()
+            cwltool_logger = logging.getLogger('cwltool')
+            stderr_logger = logging.StreamHandler(capture_stderr)
+            cwltool_logger.addHandler(stderr_logger)
+
+            try:
+                exited = arvados_cwl.main(
+                    ["--submit", "--no-wait", "--api=containers", "--debug",
+                        "tests/wf/submit_wf.cwl", infile],
+                    stubs.capture_stdout, capture_stderr, api_client=stubs.api, keep_client=stubs.keep_client)
+
+                self.assertEqual(exited, 1)
+                self.assertRegexpMatches(
+                    capture_stderr.getvalue(),
+                    r"Expected collection uuid zzzzz-4zz18-zzzzzzzzzzzzzzz to be 99999999999999999999999999999998\+99 but API server reported 99999999999999999999999999999997\+99")
+            finally:
+                cwltool_logger.removeHandler(stderr_logger)
+
+    @mock.patch("arvados.collection.CollectionReader")
+    @stubs
+    def test_submit_unknown_uuid_inputs(self, stubs, collectionReader):
+        collectionReader().find.return_value = arvados.arvfile.ArvadosFile(mock.MagicMock(), "file1.txt")
+        capture_stderr = StringIO()
+
+        cwltool_logger = logging.getLogger('cwltool')
+        stderr_logger = logging.StreamHandler(capture_stderr)
+        cwltool_logger.addHandler(stderr_logger)
+
+        exited = arvados_cwl.main(
+            ["--submit", "--no-wait", "--api=containers", "--debug",
+                "tests/wf/submit_wf.cwl", "tests/submit_test_job_with_uuids.json"],
+            stubs.capture_stdout, capture_stderr, api_client=stubs.api, keep_client=stubs.keep_client)
+
+        try:
+            self.assertEqual(exited, 1)
+            self.assertRegexpMatches(
+                capture_stderr.getvalue(),
+                r"Collection uuid zzzzz-4zz18-zzzzzzzzzzzzzzz not found")
+        finally:
+            cwltool_logger.removeHandler(stderr_logger)
 
 
 class TestCreateTemplate(unittest.TestCase):
@@ -1382,15 +1557,12 @@ class TestCreateTemplate(unittest.TestCase):
     def test_create(self, stubs):
         project_uuid = 'zzzzz-j7d0g-zzzzzzzzzzzzzzz'
 
-        capture_stdout = cStringIO.StringIO()
-
         exited = arvados_cwl.main(
             ["--create-workflow", "--debug",
              "--api=jobs",
              "--project-uuid", project_uuid,
              "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-            capture_stdout, sys.stderr, api_client=stubs.api)
-        self.assertEqual(exited, 0)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
 
         stubs.api.pipeline_instances().create.refute_called()
         stubs.api.jobs().create.refute_called()
@@ -1407,24 +1579,21 @@ class TestCreateTemplate(unittest.TestCase):
         stubs.api.pipeline_templates().create.assert_called_with(
             body=JsonDiffMatcher(expect_template), ensure_unique_name=True)
 
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_pipeline_template_uuid + '\n')
-
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_create_name(self, stubs):
         project_uuid = 'zzzzz-j7d0g-zzzzzzzzzzzzzzz'
 
-        capture_stdout = cStringIO.StringIO()
-
         exited = arvados_cwl.main(
             ["--create-workflow", "--debug",
              "--project-uuid", project_uuid,
              "--api=jobs",
              "--name", "testing 123",
              "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-            capture_stdout, sys.stderr, api_client=stubs.api)
-        self.assertEqual(exited, 0)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
 
         stubs.api.pipeline_instances().create.refute_called()
         stubs.api.jobs().create.refute_called()
@@ -1441,16 +1610,14 @@ class TestCreateTemplate(unittest.TestCase):
         stubs.api.pipeline_templates().create.assert_called_with(
             body=JsonDiffMatcher(expect_template), ensure_unique_name=True)
 
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_pipeline_template_uuid + '\n')
-
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_update_name(self, stubs):
         project_uuid = 'zzzzz-j7d0g-zzzzzzzzzzzzzzz'
 
-        capture_stdout = cStringIO.StringIO()
-
         exited = arvados_cwl.main(
             ["--update-workflow", self.existing_template_uuid,
              "--debug",
@@ -1458,8 +1625,7 @@ class TestCreateTemplate(unittest.TestCase):
              "--api=jobs",
              "--name", "testing 123",
              "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-            capture_stdout, sys.stderr, api_client=stubs.api)
-        self.assertEqual(exited, 0)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
 
         stubs.api.pipeline_instances().create.refute_called()
         stubs.api.jobs().create.refute_called()
@@ -1477,8 +1643,9 @@ class TestCreateTemplate(unittest.TestCase):
         stubs.api.pipeline_templates().update.assert_called_with(
             body=JsonDiffMatcher(expect_template), uuid=self.existing_template_uuid)
 
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          self.existing_template_uuid + '\n')
+        self.assertEqual(exited, 0)
 
 
 class TestCreateWorkflow(unittest.TestCase):
@@ -1490,15 +1657,12 @@ class TestCreateWorkflow(unittest.TestCase):
     def test_create(self, stubs):
         project_uuid = 'zzzzz-j7d0g-zzzzzzzzzzzzzzz'
 
-        capture_stdout = cStringIO.StringIO()
-
         exited = arvados_cwl.main(
             ["--create-workflow", "--debug",
              "--api=containers",
              "--project-uuid", project_uuid,
              "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-            capture_stdout, sys.stderr, api_client=stubs.api)
-        self.assertEqual(exited, 0)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
 
         stubs.api.pipeline_templates().create.refute_called()
         stubs.api.container_requests().create.refute_called()
@@ -1514,24 +1678,21 @@ class TestCreateWorkflow(unittest.TestCase):
         stubs.api.workflows().create.assert_called_with(
             body=JsonDiffMatcher(body))
 
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_workflow_uuid + '\n')
-
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_create_name(self, stubs):
         project_uuid = 'zzzzz-j7d0g-zzzzzzzzzzzzzzz'
 
-        capture_stdout = cStringIO.StringIO()
-
         exited = arvados_cwl.main(
             ["--create-workflow", "--debug",
              "--api=containers",
              "--project-uuid", project_uuid,
              "--name", "testing 123",
              "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-            capture_stdout, sys.stderr, api_client=stubs.api)
-        self.assertEqual(exited, 0)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
 
         stubs.api.pipeline_templates().create.refute_called()
         stubs.api.container_requests().create.refute_called()
@@ -1547,36 +1708,38 @@ class TestCreateWorkflow(unittest.TestCase):
         stubs.api.workflows().create.assert_called_with(
             body=JsonDiffMatcher(body))
 
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_workflow_uuid + '\n')
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_incompatible_api(self, stubs):
-        capture_stderr = cStringIO.StringIO()
-        logging.getLogger('arvados.cwl-runner').addHandler(
-            logging.StreamHandler(capture_stderr))
+        capture_stderr = StringIO()
+        acr_logger = logging.getLogger('arvados.cwl-runner')
+        stderr_logger = logging.StreamHandler(capture_stderr)
+        acr_logger.addHandler(stderr_logger)
 
-        exited = arvados_cwl.main(
-            ["--update-workflow", self.existing_workflow_uuid,
-             "--api=jobs",
-             "--debug",
-             "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-            sys.stderr, sys.stderr, api_client=stubs.api)
-        self.assertEqual(exited, 1)
-        self.assertRegexpMatches(
-            capture_stderr.getvalue(),
-            "--update-workflow arg '{}' uses 'containers' API, but --api='jobs' specified".format(self.existing_workflow_uuid))
+        try:
+            exited = arvados_cwl.main(
+                ["--update-workflow", self.existing_workflow_uuid,
+                 "--api=jobs",
+                 "--debug",
+                 "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
+                sys.stderr, sys.stderr, api_client=stubs.api)
+            self.assertEqual(exited, 1)
+            self.assertRegexpMatches(
+                capture_stderr.getvalue(),
+                "--update-workflow arg '{}' uses 'containers' API, but --api='jobs' specified".format(self.existing_workflow_uuid))
+        finally:
+            acr_logger.removeHandler(stderr_logger)
 
     @stubs
     def test_update(self, stubs):
-        capture_stdout = cStringIO.StringIO()
-
         exited = arvados_cwl.main(
             ["--update-workflow", self.existing_workflow_uuid,
              "--debug",
              "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-            capture_stdout, sys.stderr, api_client=stubs.api)
-        self.assertEqual(exited, 0)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
 
         body = {
             "workflow": {
@@ -1588,20 +1751,17 @@ class TestCreateWorkflow(unittest.TestCase):
         stubs.api.workflows().update.assert_called_with(
             uuid=self.existing_workflow_uuid,
             body=JsonDiffMatcher(body))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          self.existing_workflow_uuid + '\n')
-
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_update_name(self, stubs):
-        capture_stdout = cStringIO.StringIO()
-
         exited = arvados_cwl.main(
             ["--update-workflow", self.existing_workflow_uuid,
              "--debug", "--name", "testing 123",
              "tests/wf/submit_wf.cwl", "tests/submit_test_job.json"],
-            capture_stdout, sys.stderr, api_client=stubs.api)
-        self.assertEqual(exited, 0)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
 
         body = {
             "workflow": {
@@ -1613,23 +1773,20 @@ class TestCreateWorkflow(unittest.TestCase):
         stubs.api.workflows().update.assert_called_with(
             uuid=self.existing_workflow_uuid,
             body=JsonDiffMatcher(body))
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          self.existing_workflow_uuid + '\n')
-
+        self.assertEqual(exited, 0)
 
     @stubs
     def test_create_collection_per_tool(self, stubs):
         project_uuid = 'zzzzz-j7d0g-zzzzzzzzzzzzzzz'
 
-        capture_stdout = cStringIO.StringIO()
-
         exited = arvados_cwl.main(
             ["--create-workflow", "--debug",
              "--api=containers",
              "--project-uuid", project_uuid,
              "tests/collection_per_tool/collection_per_tool.cwl"],
-            capture_stdout, sys.stderr, api_client=stubs.api)
-        self.assertEqual(exited, 0)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
 
         toolfile = "tests/collection_per_tool/collection_per_tool_packed.cwl"
         expect_workflow = StripYAMLComments(open(toolfile).read())
@@ -1645,20 +1802,21 @@ class TestCreateWorkflow(unittest.TestCase):
         stubs.api.workflows().create.assert_called_with(
             body=JsonDiffMatcher(body))
 
-        self.assertEqual(capture_stdout.getvalue(),
+        self.assertEqual(stubs.capture_stdout.getvalue(),
                          stubs.expect_workflow_uuid + '\n')
+        self.assertEqual(exited, 0)
 
 class TestTemplateInputs(unittest.TestCase):
     expect_template = {
         "components": {
             "inputs_test.cwl": {
                 'runtime_constraints': {
-                    'docker_image': 'arvados/jobs:'+arvados_cwl.__version__,
+                    'docker_image': '999999999999999999999999999999d3+99',
                     'min_ram_mb_per_node': 1024
                 },
                 'script_parameters': {
                     'cwl:tool':
-                    '6c5ee1cd606088106d9f28367cde1e41+60/workflow.cwl#main',
+                    'a2de777156fb700f1363b1f2e370adca+60/workflow.cwl#main',
                     'optionalFloatInput': None,
                     'fileInput': {
                         'type': 'File',
@@ -1701,27 +1859,28 @@ class TestTemplateInputs(unittest.TestCase):
         exited = arvados_cwl.main(
             ["--create-template",
              "tests/wf/inputs_test.cwl", "tests/order/empty_order.json"],
-            cStringIO.StringIO(), sys.stderr, api_client=stubs.api)
-        self.assertEqual(exited, 0)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
 
         stubs.api.pipeline_templates().create.assert_called_with(
             body=JsonDiffMatcher(self.expect_template), ensure_unique_name=True)
 
+        self.assertEqual(exited, 0)
+
     @stubs
     def test_inputs(self, stubs):
         exited = arvados_cwl.main(
             ["--create-template",
              "tests/wf/inputs_test.cwl", "tests/order/inputs_test_order.json"],
-            cStringIO.StringIO(), sys.stderr, api_client=stubs.api)
-        self.assertEqual(exited, 0)
+            stubs.capture_stdout, sys.stderr, api_client=stubs.api)
 
         expect_template = copy.deepcopy(self.expect_template)
         params = expect_template[
             "components"]["inputs_test.cwl"]["script_parameters"]
         params["fileInput"]["value"] = '169f39d466a5438ac4a90e779bf750c7+53/blorp.txt'
-        params["cwl:tool"] = '6c5ee1cd606088106d9f28367cde1e41+60/workflow.cwl#main'
+        params["cwl:tool"] = 'a2de777156fb700f1363b1f2e370adca+60/workflow.cwl#main'
         params["floatInput"]["value"] = 1.234
         params["boolInput"]["value"] = True
 
         stubs.api.pipeline_templates().create.assert_called_with(
             body=JsonDiffMatcher(expect_template), ensure_unique_name=True)
+        self.assertEqual(exited, 0)