184 lines
6.7 KiB
Go
184 lines
6.7 KiB
Go
package runner
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import (
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"errors"
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"github.com/stretchr/testify/mock"
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"github.com/stretchr/testify/suite"
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"gitlab.hpi.de/codeocean/codemoon/poseidon/nomad"
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"testing"
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"time"
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)
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const (
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anotherRunnerId = "4n0th3r-runn3r-1d"
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defaultEnvironmentId = EnvironmentId(0)
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otherEnvironmentId = EnvironmentId(42)
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defaultDesiredRunnersCount = 5
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jobId = "4n0th3r-j0b-1d"
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waitTime = 100 * time.Millisecond
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)
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func TestGetNextRunnerTestSuite(t *testing.T) {
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suite.Run(t, new(ManagerTestSuite))
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}
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type ManagerTestSuite struct {
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suite.Suite
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apiMock *nomad.ExecutorApiMock
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nomadRunnerManager *NomadRunnerManager
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exerciseRunner Runner
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}
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func (suite *ManagerTestSuite) SetupTest() {
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suite.apiMock = &nomad.ExecutorApiMock{}
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suite.nomadRunnerManager = NewNomadRunnerManager(suite.apiMock)
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suite.exerciseRunner = CreateTestRunner()
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suite.mockRunnerQueries([]string{})
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suite.registerDefaultEnvironment()
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}
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func (suite *ManagerTestSuite) mockRunnerQueries(returnedRunnerIds []string) {
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// reset expected calls to allow new mocked return values
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suite.apiMock.ExpectedCalls = []*mock.Call{}
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suite.apiMock.On("LoadRunners", jobId).Return(returnedRunnerIds, nil)
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suite.apiMock.On("JobScale", jobId).Return(len(returnedRunnerIds), nil)
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suite.apiMock.On("SetJobScale", jobId, mock.AnythingOfType("int"), "Runner Requested").Return(nil)
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}
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func (suite *ManagerTestSuite) registerDefaultEnvironment() {
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suite.nomadRunnerManager.RegisterEnvironment(defaultEnvironmentId, jobId, defaultDesiredRunnersCount)
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}
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func (suite *ManagerTestSuite) AddIdleRunnerForDefaultEnvironment(r Runner) {
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jobEntity, _ := suite.nomadRunnerManager.jobs.Get(defaultEnvironmentId.toString())
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jobEntity.(*NomadJob).idleRunners.Add(r)
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}
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func (suite *ManagerTestSuite) waitForRunnerRefresh() {
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time.Sleep(waitTime)
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}
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func (suite *ManagerTestSuite) TestRegisterEnvironmentAddsNewJob() {
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suite.nomadRunnerManager.RegisterEnvironment(otherEnvironmentId, jobId, defaultDesiredRunnersCount)
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jobEntity, ok := suite.nomadRunnerManager.jobs.Get(defaultEnvironmentId.toString())
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suite.True(ok)
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suite.NotNil(jobEntity)
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}
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func (suite *ManagerTestSuite) TestClaimReturnsNotFoundErrorIfEnvironmentNotFound() {
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runner, err := suite.nomadRunnerManager.Claim(EnvironmentId(42))
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suite.Nil(runner)
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suite.Equal(ErrUnknownExecutionEnvironment, err)
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}
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func (suite *ManagerTestSuite) TestClaimReturnsRunnerIfAvailable() {
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suite.AddIdleRunnerForDefaultEnvironment(suite.exerciseRunner)
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receivedRunner, err := suite.nomadRunnerManager.Claim(defaultEnvironmentId)
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suite.NoError(err)
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suite.Equal(suite.exerciseRunner, receivedRunner)
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}
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func (suite *ManagerTestSuite) TestClaimReturnsErrorIfNoRunnerAvailable() {
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suite.waitForRunnerRefresh()
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runner, err := suite.nomadRunnerManager.Claim(defaultEnvironmentId)
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suite.Nil(runner)
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suite.Equal(ErrNoRunnersAvailable, err)
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}
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func (suite *ManagerTestSuite) TestClaimReturnsNoRunnerOfDifferentEnvironment() {
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suite.AddIdleRunnerForDefaultEnvironment(suite.exerciseRunner)
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receivedRunner, err := suite.nomadRunnerManager.Claim(otherEnvironmentId)
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suite.Nil(receivedRunner)
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suite.Error(err)
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}
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func (suite *ManagerTestSuite) TestClaimDoesNotReturnTheSameRunnerTwice() {
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suite.AddIdleRunnerForDefaultEnvironment(suite.exerciseRunner)
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suite.AddIdleRunnerForDefaultEnvironment(NewRunner(anotherRunnerId))
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firstReceivedRunner, _ := suite.nomadRunnerManager.Claim(defaultEnvironmentId)
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secondReceivedRunner, _ := suite.nomadRunnerManager.Claim(defaultEnvironmentId)
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suite.NotEqual(firstReceivedRunner, secondReceivedRunner)
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}
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func (suite *ManagerTestSuite) TestClaimThrowsAnErrorIfNoRunnersAvailable() {
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receivedRunner, err := suite.nomadRunnerManager.Claim(defaultEnvironmentId)
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suite.Nil(receivedRunner)
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suite.Error(err)
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}
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func (suite *ManagerTestSuite) TestClaimAddsRunnerToUsedRunners() {
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suite.mockRunnerQueries([]string{RunnerId})
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suite.waitForRunnerRefresh()
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receivedRunner, _ := suite.nomadRunnerManager.Claim(defaultEnvironmentId)
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savedRunner, ok := suite.nomadRunnerManager.usedRunners.Get(receivedRunner.Id())
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suite.True(ok)
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suite.Equal(savedRunner, receivedRunner)
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}
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func (suite *ManagerTestSuite) TestGetReturnsRunnerIfRunnerIsUsed() {
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suite.nomadRunnerManager.usedRunners.Add(suite.exerciseRunner)
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savedRunner, err := suite.nomadRunnerManager.Get(suite.exerciseRunner.Id())
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suite.NoError(err)
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suite.Equal(savedRunner, suite.exerciseRunner)
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}
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func (suite *ManagerTestSuite) TestGetReturnsErrorIfRunnerNotFound() {
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savedRunner, err := suite.nomadRunnerManager.Get(RunnerId)
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suite.Nil(savedRunner)
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suite.Error(err)
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}
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func (suite *ManagerTestSuite) TestReturnRemovesRunnerFromUsedRunners() {
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suite.apiMock.On("DeleteRunner", mock.AnythingOfType("string")).Return(nil)
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suite.nomadRunnerManager.usedRunners.Add(suite.exerciseRunner)
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err := suite.nomadRunnerManager.Return(suite.exerciseRunner)
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suite.Nil(err)
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_, ok := suite.nomadRunnerManager.usedRunners.Get(suite.exerciseRunner.Id())
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suite.False(ok)
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}
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func (suite *ManagerTestSuite) TestReturnCallsDeleteRunnerApiMethod() {
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suite.apiMock.On("DeleteRunner", mock.AnythingOfType("string")).Return(nil)
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err := suite.nomadRunnerManager.Return(suite.exerciseRunner)
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suite.Nil(err)
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suite.apiMock.AssertCalled(suite.T(), "DeleteRunner", suite.exerciseRunner.Id())
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}
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func (suite *ManagerTestSuite) TestReturnReturnsErrorWhenApiCallFailed() {
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suite.apiMock.On("DeleteRunner", mock.AnythingOfType("string")).Return(errors.New("return failed"))
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err := suite.nomadRunnerManager.Return(suite.exerciseRunner)
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suite.Error(err)
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}
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func (suite *ManagerTestSuite) TestRefreshFetchesRunners() {
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suite.mockRunnerQueries([]string{RunnerId})
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suite.waitForRunnerRefresh()
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suite.apiMock.AssertCalled(suite.T(), "LoadRunners", jobId)
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}
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func (suite *ManagerTestSuite) TestNewRunnersFoundInRefreshAreAddedToUnusedRunners() {
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suite.mockRunnerQueries([]string{RunnerId})
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suite.waitForRunnerRefresh()
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availableRunner, _ := suite.nomadRunnerManager.Claim(defaultEnvironmentId)
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suite.Equal(availableRunner.Id(), RunnerId)
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}
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func (suite *ManagerTestSuite) TestRefreshScalesJob() {
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suite.mockRunnerQueries([]string{RunnerId})
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suite.waitForRunnerRefresh()
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// use one runner to necessitate rescaling
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_, _ = suite.nomadRunnerManager.Claim(defaultEnvironmentId)
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suite.waitForRunnerRefresh()
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suite.apiMock.AssertCalled(suite.T(), "SetJobScale", jobId, defaultDesiredRunnersCount+1, "Runner Requested")
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}
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func (suite *ManagerTestSuite) TestRefreshAddsRunnerToPool() {
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suite.mockRunnerQueries([]string{RunnerId})
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suite.waitForRunnerRefresh()
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jobEntity, _ := suite.nomadRunnerManager.jobs.Get(defaultEnvironmentId.toString())
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poolRunner, ok := jobEntity.(*NomadJob).idleRunners.Get(RunnerId)
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suite.True(ok)
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suite.Equal(RunnerId, poolRunner.Id())
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}
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