158 lines
4.8 KiB
Go
158 lines
4.8 KiB
Go
/*
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Copyright 2021 The Dapr Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package cron
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import (
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"context"
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"os"
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"runtime"
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"sync/atomic"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"k8s.io/utils/clock"
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clocktesting "k8s.io/utils/clock/testing"
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"github.com/dapr/components-contrib/bindings"
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"github.com/dapr/kit/logger"
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)
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func getTestMetadata(schedule string) bindings.Metadata {
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m := bindings.Metadata{}
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m.Properties = map[string]string{
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"schedule": schedule,
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}
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return m
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}
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func getNewCron() *Binding {
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clk := clocktesting.NewFakeClock(time.Now())
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return getNewCronWithClock(clk)
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}
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func getNewCronWithClock(clk clock.Clock) *Binding {
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l := logger.NewLogger("cron")
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if os.Getenv("DEBUG") != "" {
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l.SetOutputLevel(logger.DebugLevel)
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}
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return NewCronWithClock(l, clk).(*Binding)
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}
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func TestCronInitSuccess(t *testing.T) {
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initTests := []struct {
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schedule string
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errorExpected bool
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}{
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{
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schedule: "@every 1s", // macro cron format
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errorExpected: false,
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},
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{
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schedule: "*/3 * * * * *", // non standard cron format
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errorExpected: false,
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},
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{
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schedule: "*/15 * * * *", // standard cron format
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errorExpected: false,
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},
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{
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schedule: "0 0 1 * *", // standard cron format
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errorExpected: false,
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},
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{
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schedule: "0 0 */6 ? * *", // quartz cron format
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errorExpected: false,
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},
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{
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schedule: "INVALID_SCHEDULE", // invalid cron format
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errorExpected: true,
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},
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}
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for _, test := range initTests {
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c := getNewCron()
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err := c.Init(context.Background(), getTestMetadata(test.schedule))
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if test.errorExpected {
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assert.Errorf(t, err, "Got no error while initializing an invalid schedule: %s", test.schedule)
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} else {
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assert.NoErrorf(t, err, "error initializing valid schedule: %s", test.schedule)
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}
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}
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}
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// TestLongRead
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// go test -v -count=1 -timeout 15s -run TestLongRead ./bindings/cron/.
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func TestCronRead(t *testing.T) {
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clk := clocktesting.NewFakeClock(time.Now())
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c := getNewCronWithClock(clk)
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schedule := "@every 1s"
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assert.NoErrorf(t, c.Init(context.Background(), getTestMetadata(schedule)), "error initializing valid schedule")
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expectedCount := int32(5)
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var observedCount atomic.Int32
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err := c.Read(context.Background(), func(ctx context.Context, res *bindings.ReadResponse) ([]byte, error) {
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assert.NotNil(t, res)
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observedCount.Add(1)
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return nil, nil
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})
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// Check if cron triggers 5 times in 5 seconds
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for i := int32(0); i < expectedCount; i++ {
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// Add time to mock clock in 1 second intervals using loop to allow cron go routine to run
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clk.Step(time.Second)
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runtime.Gosched()
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time.Sleep(100 * time.Millisecond)
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}
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// Wait for 1 second after adding the last second to mock clock to allow cron to finish triggering
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assert.Eventually(t, func() bool {
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return observedCount.Load() == expectedCount
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}, time.Second, time.Millisecond*10,
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"Cron did not trigger expected number of times, expected %d, got %d", expectedCount, observedCount.Load())
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assert.NoErrorf(t, err, "error on read")
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assert.NoError(t, c.Close())
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}
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func TestCronReadWithContextCancellation(t *testing.T) {
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clk := clocktesting.NewFakeClock(time.Now())
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c := getNewCronWithClock(clk)
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schedule := "@every 1s"
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assert.NoErrorf(t, c.Init(context.Background(), getTestMetadata(schedule)), "error initializing valid schedule")
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expectedCount := int32(5)
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var observedCount atomic.Int32
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ctx, cancel := context.WithCancel(context.Background())
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err := c.Read(ctx, func(ctx context.Context, res *bindings.ReadResponse) ([]byte, error) {
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assert.NotNil(t, res)
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assert.LessOrEqualf(t, observedCount.Load(), expectedCount, "Invoke didn't stop the schedule")
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observedCount.Add(1)
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if observedCount.Load() == expectedCount {
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// Cancel context after 5 triggers
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cancel()
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}
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return nil, nil
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})
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// Check if cron triggers only 5 times in 10 seconds since context should be cancelled after 5 triggers
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for i := 0; i < 10; i++ {
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// Add time to mock clock in 1 second intervals using loop to allow cron go routine to run
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clk.Step(time.Second)
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runtime.Gosched()
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time.Sleep(100 * time.Millisecond)
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}
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assert.Eventually(t, func() bool {
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return observedCount.Load() == expectedCount
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}, time.Second, time.Millisecond*10,
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"Cron did not trigger expected number of times, expected %d, got %d", expectedCount, observedCount.Load())
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assert.NoErrorf(t, err, "error on read")
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assert.NoError(t, c.Close())
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}
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