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package mutexkv
import (
"testing"
"time"
)
func TestMutexKVLock(t *testing.T) {
s := struct {
mkv *MutexKV
}{
mkv: NewMutexKV(),
}
s.mkv.Lock("foo")
doneCh := make(chan struct{})
go func() {
s.mkv.Lock("foo")
close(doneCh)
}()
select {
case <-doneCh:
t.Fatal("Second lock was able to be taken. This shouldn't happen.")
case <-time.After(50 * time.Millisecond):
// pass
}
}
func TestMutexKVUnlock(t *testing.T) {
s := struct {
mkv *MutexKV
}{
mkv: NewMutexKV(),
}
s.mkv.Lock("foo")
s.mkv.Unlock("foo")
doneCh := make(chan struct{})
go func() {
s.mkv.Lock("foo")
close(doneCh)
}()
select {
case <-doneCh:
// pass
case <-time.After(50 * time.Millisecond):
t.Fatal("Second lock blocked after unlock. This shouldn't happen.")
}
}
func TestMutexKVDifferentKeys(t *testing.T) {
s := struct {
mkv *MutexKV
}{
mkv: NewMutexKV(),
}
s.mkv.Lock("foo")
doneCh := make(chan struct{})
go func() {
s.mkv.Lock("bar")
close(doneCh)
}()
select {
case <-doneCh:
// pass
case <-time.After(50 * time.Millisecond):
t.Fatal("Second lock on a different key blocked. This shouldn't happen.")
}
}
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