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|
package common
import (
"fmt"
"testing"
"time"
)
func TestInterruptibleTaskShouldImmediatelyEndOnCancel(t *testing.T) {
testSubject := NewInterruptibleTask(
func() bool { return true },
func(<-chan struct{}) error {
for {
time.Sleep(time.Second * 30)
}
})
result := testSubject.Run()
if result.IsCancelled != true {
t.Fatal("Expected the task to be cancelled, but it was not.")
}
}
func TestInterruptibleTaskShouldRunTaskUntilCompletion(t *testing.T) {
var count int
testSubject := &InterruptibleTask{
IsCancelled: func() bool {
return false
},
Task: func(<-chan struct{}) error {
for i := 0; i < 10; i++ {
count += 1
}
return nil
},
}
result := testSubject.Run()
if result.IsCancelled != false {
t.Errorf("Expected the task to *not* be cancelled, but it was.")
}
if count != 10 {
t.Errorf("Expected the task to wait for completion, but it did not.")
}
if result.Err != nil {
t.Errorf("Expected the task to return a nil error, but got=%s", result.Err)
}
}
func TestInterruptibleTaskShouldImmediatelyStopOnTaskError(t *testing.T) {
testSubject := &InterruptibleTask{
IsCancelled: func() bool {
return false
},
Task: func(cancelCh <-chan struct{}) error {
return fmt.Errorf("boom")
},
}
result := testSubject.Run()
if result.IsCancelled != false {
t.Errorf("Expected the task to *not* be cancelled, but it was.")
}
if result.Err == nil {
t.Errorf("Expected the task to return an error, but it did not.")
}
}
func TestInterruptibleTaskShouldProvideLiveChannel(t *testing.T) {
testSubject := &InterruptibleTask{
IsCancelled: func() bool {
return false
},
Task: func(cancelCh <-chan struct{}) error {
isOpen := false
select {
case _, ok := <-cancelCh:
isOpen = !ok
if !isOpen {
t.Errorf("Expected the channel to open, but it was closed.")
}
default:
isOpen = true
break
}
if !isOpen {
t.Errorf("Check for openness failed.")
}
return nil
},
}
testSubject.Run()
}
|