package libcontainerd // import "github.com/docker/docker/libcontainerd" import ( "testing" "time" "github.com/stretchr/testify/require" ) func TestSerialization(t *testing.T) { var ( q queue serialization = 1 ) q.append("aaa", func() { //simulate a long time task time.Sleep(10 * time.Millisecond) require.EqualValues(t, serialization, 1) serialization = 2 }) q.append("aaa", func() { require.EqualValues(t, serialization, 2) serialization = 3 }) q.append("aaa", func() { require.EqualValues(t, serialization, 3) serialization = 4 }) time.Sleep(20 * time.Millisecond) }