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//go:build unit
package coroutine
import (
"context"
"errors"
"sync"
"testing"
"time"
"git.sr.ht/~gabrielgio/img/pkg/testkit"
)
var rError = errors.New("This is a error")
func imediatReturn() (string, error) {
return "A string", nil
}
func imediatErrorReturn() (string, error) {
return "", rError
}
func haltedReturn() (string, error) {
time.Sleep(time.Hour)
return "", nil
}
func TestImediatReturn(t *testing.T) {
ctx := context.Background()
v, err := WrapProcess(ctx, imediatReturn)
testkit.TestError(t, "WrapProcess", nil, err)
testkit.TestValue(t, "WrapProcess", "A string", v)
}
func TestImediatErrorReturn(t *testing.T) {
ctx := context.Background()
v, err := WrapProcess(ctx, imediatErrorReturn)
testkit.TestError(t, "WrapProcess", rError, err)
testkit.TestValue(t, "WrapProcess", "", v)
}
func TestHaltedReturn(t *testing.T) {
ctx := context.Background()
ctx, cancel := context.WithCancel(ctx)
var (
err error
wg sync.WaitGroup
)
wg.Add(1)
go func(err *error) {
defer wg.Done()
_, *err = WrapProcess(ctx, haltedReturn)
}(&err)
cancel()
wg.Wait()
testkit.TestError(t, "WrapProcess", context.Canceled, err)
}
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