X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/5155ef0eaae5a3cdef3d8c3490d138dfcbeaa736..e1ed6272d0e8ecf96aeb6905328498d023d34e0e:/lib/dispatchcloud/worker/pool_test.go

diff --git a/lib/dispatchcloud/worker/pool_test.go b/lib/dispatchcloud/worker/pool_test.go
index 300b4730fc..d437668aad 100644
--- a/lib/dispatchcloud/worker/pool_test.go
+++ b/lib/dispatchcloud/worker/pool_test.go
@@ -9,10 +9,10 @@ import (
 	"strings"
 	"time"
 
-	"git.curoverse.com/arvados.git/lib/cloud"
-	"git.curoverse.com/arvados.git/lib/dispatchcloud/test"
-	"git.curoverse.com/arvados.git/sdk/go/arvados"
-	"git.curoverse.com/arvados.git/sdk/go/ctxlog"
+	"git.arvados.org/arvados.git/lib/cloud"
+	"git.arvados.org/arvados.git/lib/dispatchcloud/test"
+	"git.arvados.org/arvados.git/sdk/go/arvados"
+	"git.arvados.org/arvados.git/sdk/go/ctxlog"
 	"github.com/prometheus/client_golang/prometheus"
 	check "gopkg.in/check.v1"
 )
@@ -66,13 +66,15 @@ func (suite *PoolSuite) TestResumeAfterRestart(c *check.C) {
 	logger := ctxlog.TestLogger(c)
 	driver := &test.StubDriver{}
 	instanceSetID := cloud.InstanceSetID("test-instance-set-id")
-	is, err := driver.InstanceSet(nil, instanceSetID, logger)
+	is, err := driver.InstanceSet(nil, instanceSetID, nil, logger)
 	c.Assert(err, check.IsNil)
 
 	newExecutor := func(cloud.Instance) Executor {
-		return stubExecutor{
-			"crunch-run --list": stubResp{},
-			"true":              stubResp{},
+		return &stubExecutor{
+			response: map[string]stubResp{
+				"crunch-run --list": {},
+				"true":              {},
+			},
 		}
 	}
 
@@ -144,10 +146,70 @@ func (suite *PoolSuite) TestResumeAfterRestart(c *check.C) {
 	pool2.Stop()
 }
 
+func (suite *PoolSuite) TestDrain(c *check.C) {
+	logger := ctxlog.TestLogger(c)
+	driver := test.StubDriver{HoldCloudOps: true}
+	instanceSet, err := driver.InstanceSet(nil, "test-instance-set-id", nil, logger)
+	c.Assert(err, check.IsNil)
+
+	ac := arvados.NewClientFromEnv()
+
+	type1 := arvados.InstanceType{Name: "a1s", ProviderType: "a1.small", VCPUs: 1, RAM: 1 * GiB, Price: .01}
+	pool := &Pool{
+		arvClient:   ac,
+		logger:      logger,
+		newExecutor: func(cloud.Instance) Executor { return &stubExecutor{} },
+		instanceSet: &throttledInstanceSet{InstanceSet: instanceSet},
+		instanceTypes: arvados.InstanceTypeMap{
+			type1.Name: type1,
+		},
+	}
+	notify := pool.Subscribe()
+	defer pool.Unsubscribe(notify)
+
+	c.Check(pool.Unallocated()[type1], check.Equals, 0)
+	pool.Create(type1)
+	c.Check(pool.Unallocated()[type1], check.Equals, 1)
+
+	// Unblock the pending Create call.
+	go driver.ReleaseCloudOps(1)
+
+	// Wait for the instance to either return from its Create
+	// call, or show up in a poll.
+	suite.wait(c, pool, notify, func() bool {
+		pool.mtx.RLock()
+		defer pool.mtx.RUnlock()
+		return len(pool.workers) == 1
+	})
+
+	tests := []struct {
+		state        State
+		idleBehavior IdleBehavior
+		result       bool
+	}{
+		{StateIdle, IdleBehaviorHold, false},
+		{StateIdle, IdleBehaviorDrain, false},
+		{StateIdle, IdleBehaviorRun, true},
+	}
+
+	for _, test := range tests {
+		for _, wkr := range pool.workers {
+			if wkr.instType == type1 {
+				wkr.state = test.state
+				wkr.idleBehavior = test.idleBehavior
+			}
+		}
+
+		// Try to start another container
+		started := pool.StartContainer(type1, arvados.Container{UUID: "testcontainer"})
+		c.Check(started, check.Equals, test.result)
+	}
+}
+
 func (suite *PoolSuite) TestCreateUnallocShutdown(c *check.C) {
 	logger := ctxlog.TestLogger(c)
 	driver := test.StubDriver{HoldCloudOps: true}
-	instanceSet, err := driver.InstanceSet(nil, "", logger)
+	instanceSet, err := driver.InstanceSet(nil, "test-instance-set-id", nil, logger)
 	c.Assert(err, check.IsNil)
 
 	type1 := arvados.InstanceType{Name: "a1s", ProviderType: "a1.small", VCPUs: 1, RAM: 1 * GiB, Price: .01}
@@ -155,7 +217,7 @@ func (suite *PoolSuite) TestCreateUnallocShutdown(c *check.C) {
 	type3 := arvados.InstanceType{Name: "a2l", ProviderType: "a2.large", VCPUs: 4, RAM: 4 * GiB, Price: .04}
 	pool := &Pool{
 		logger:      logger,
-		newExecutor: func(cloud.Instance) Executor { return stubExecutor{} },
+		newExecutor: func(cloud.Instance) Executor { return &stubExecutor{} },
 		instanceSet: &throttledInstanceSet{InstanceSet: instanceSet},
 		instanceTypes: arvados.InstanceTypeMap{
 			type1.Name: type1,