10587: Added tests to Python commands to check for the --version argument.

[arvados.git] / sdk / python / tests / test_arv_ls.py

diff --git a/sdk/python/tests/test_arv_ls.py b/sdk/python/tests/test_arv_ls.py
index 664b57fc00a57cef068e352232d55d0dfa548a58..ed03c124f4030b7bda63802d0dc14a972e796175 100644 (file)
--- a/sdk/python/tests/test_arv_ls.py
+++ b/sdk/python/tests/test_arv_ls.py
@@ -2,9 +2,12 @@
 # -*- coding: utf-8 -*-
 
 import io
+import os
 import random
-
+import sys
 import mock
+import tempfile
+import multiprocessing
 
 import arvados.errors as arv_error
 import arvados.commands.ls as arv_ls
@@ -38,6 +41,25 @@ class ArvLsTestCase(run_test_server.TestCaseWithServers):
         self.stderr = io.BytesIO()
         return arv_ls.main(args, self.stdout, self.stderr, api_client)
 
+    def run_ls_process(self, args=[], api_client=None):
+        _, stdout_path = tempfile.mkstemp()
+        _, stderr_path = tempfile.mkstemp()
+        def wrap():
+            def wrapper(*args, **kwargs):
+                sys.stdout = open(stdout_path, 'w')
+                sys.stderr = open(stderr_path, 'w')
+                arv_ls.main(*args, **kwargs)
+            return wrapper
+        p = multiprocessing.Process(target=wrap(),
+                                    args=(args, sys.stdout, sys.stderr, api_client))
+        p.start()
+        p.join()
+        out = open(stdout_path, 'r').read()
+        err = open(stderr_path, 'r').read()
+        os.unlink(stdout_path)
+        os.unlink(stderr_path)
+        return p.exitcode, out, err
+
     def test_plain_listing(self):
         collection, api_client = self.mock_api_for_manifest(
             ['. {} 0:3:one.txt 3:4:two.txt'.format(self.random_blocks(5, 2)),
@@ -78,3 +100,11 @@ class ArvLsTestCase(run_test_server.TestCaseWithServers):
             arv_error.NotFoundError)
         self.assertNotEqual(0, self.run_ls([self.FAKE_UUID], api_client))
         self.assertNotEqual('', self.stderr.getvalue())
+
+    def test_version_argument(self):
+        _, api_client = self.mock_api_for_manifest([''])
+        exitcode, out, err = self.run_ls_process(['--version'])
+        self.assertEqual(0, exitcode)
+        self.assertEqual('', out)
+        self.assertNotEqual('', err)
+        self.assertRegexpMatches(err, "[0-9]+\.[0-9]+\.[0-9]+")