Files
poseidon/runner/pool_test.go
2021-05-19 14:52:03 +02:00

126 lines
3.8 KiB
Go

package runner
import (
"github.com/sirupsen/logrus"
"github.com/sirupsen/logrus/hooks/test"
"github.com/stretchr/testify/suite"
"testing"
)
func TestRunnerPoolTestSuite(t *testing.T) {
suite.Run(t, new(RunnerPoolTestSuite))
}
type RunnerPoolTestSuite struct {
suite.Suite
runnerPool *localRunnerPool
runner Runner
}
func (suite *RunnerPoolTestSuite) SetupTest() {
suite.runnerPool = NewLocalRunnerPool()
suite.runner = NewRunner(defaultRunnerId)
}
func (suite *RunnerPoolTestSuite) TestAddInvalidEntityTypeThrowsFatal() {
var hook *test.Hook
logger, hook := test.NewNullLogger()
// don't terminate program on fatal log entry
logger.ExitFunc = func(int) {}
log = logger.WithField("pkg", "environment")
dummyEntity := DummyEntity{}
suite.runnerPool.Add(dummyEntity)
suite.Equal(logrus.FatalLevel, hook.LastEntry().Level)
suite.Equal(dummyEntity, hook.LastEntry().Data["entity"])
}
func (suite *RunnerPoolTestSuite) TestAddValidEntityDoesNotThrowFatal() {
var hook *test.Hook
logger, hook := test.NewNullLogger()
log = logger.WithField("pkg", "environment")
suite.runnerPool.Add(suite.runner)
// currently, the Add method does not log anything else. adjust if necessary
suite.Nil(hook.LastEntry())
}
func (suite *RunnerPoolTestSuite) TestAddedRunnerCanBeRetrieved() {
suite.runnerPool.Add(suite.runner)
retrievedRunner, ok := suite.runnerPool.Get(suite.runner.Id())
suite.True(ok, "A saved runner should be retrievable")
suite.Equal(suite.runner, retrievedRunner)
}
func (suite *RunnerPoolTestSuite) TestRunnerWithSameIdOverwritesOldOne() {
otherRunnerWithSameId := NewRunner(suite.runner.Id())
// assure runner is actually different
suite.NotEqual(suite.runner, otherRunnerWithSameId)
suite.runnerPool.Add(suite.runner)
suite.runnerPool.Add(otherRunnerWithSameId)
retrievedRunner, _ := suite.runnerPool.Get(suite.runner.Id())
suite.NotEqual(suite.runner, retrievedRunner)
suite.Equal(otherRunnerWithSameId, retrievedRunner)
}
func (suite *RunnerPoolTestSuite) TestDeletedRunnersAreNotAccessible() {
suite.runnerPool.Add(suite.runner)
suite.runnerPool.Delete(suite.runner.Id())
retrievedRunner, ok := suite.runnerPool.Get(suite.runner.Id())
suite.Nil(retrievedRunner)
suite.False(ok, "A deleted runner should not be accessible")
}
func (suite *RunnerPoolTestSuite) TestSampleReturnsRunnerWhenOneIsAvailable() {
suite.runnerPool.Add(suite.runner)
sampledRunner, ok := suite.runnerPool.Sample()
suite.NotNil(sampledRunner)
suite.True(ok)
}
func (suite *RunnerPoolTestSuite) TestSampleReturnsFalseWhenNoneIsAvailable() {
sampledRunner, ok := suite.runnerPool.Sample()
suite.Nil(sampledRunner)
suite.False(ok)
}
func (suite *RunnerPoolTestSuite) TestSampleRemovesRunnerFromPool() {
suite.runnerPool.Add(suite.runner)
sampledRunner, _ := suite.runnerPool.Sample()
_, ok := suite.runnerPool.Get(sampledRunner.Id())
suite.False(ok)
}
func (suite *RunnerPoolTestSuite) TestLenOfEmptyPoolIsZero() {
suite.Equal(0, suite.runnerPool.Len())
}
func (suite *RunnerPoolTestSuite) TestLenChangesOnStoreContentChange() {
suite.Run("len increases when runner is added", func() {
suite.runnerPool.Add(suite.runner)
suite.Equal(1, suite.runnerPool.Len())
})
suite.Run("len does not increase when runner with same id is added", func() {
suite.runnerPool.Add(suite.runner)
suite.Equal(1, suite.runnerPool.Len())
})
suite.Run("len increases again when different runner is added", func() {
anotherRunner := NewRunner(anotherRunnerId)
suite.runnerPool.Add(anotherRunner)
suite.Equal(2, suite.runnerPool.Len())
})
suite.Run("len decreases when runner is deleted", func() {
suite.runnerPool.Delete(suite.runner.Id())
suite.Equal(1, suite.runnerPool.Len())
})
suite.Run("len decreases when runner is sampled", func() {
_, _ = suite.runnerPool.Sample()
suite.Equal(0, suite.runnerPool.Len())
})
}