melrōse musical expression player

package core import ( "testing" "time" ) func TestScheduleAddInThePast(t *testing.T) { tim := NewTimeline() now := time.Now() call := new(testEvent) if err := tim.Schedule(call, now.Add(-1*time.Second)); err == nil { t.Fatal("error expected") } } type testEvent struct { id int } func (e testEvent) NoteChangesDo(block func(NoteChange)) {} func (e testEvent) Handle(t *Timeline, w time.Time) {} func TestScheduleAdd(t *testing.T) { tim := NewTimeline() now := time.Now() e1 := testEvent{id: 1} e2 := testEvent{id: 2} e3 := testEvent{id: 3} e4 := testEvent{id: 4} // e1 -> e2 -> e4 -> e3 tim.Schedule(e1, now.Add(1*time.Second)) if got, want := tim.head.event, e1; got != want { t.Errorf("got [%v] want [%v]", got, want) } tim.Schedule(e2, now.Add(1*time.Second)) if got, want := tim.head.next.event, e2; got != want { t.Errorf("got [%v] want [%v]", got, want) } tim.Schedule(e3, now.Add(5*time.Second)) if got, want := tim.tail.event, e3; got != want { t.Errorf("got [%v] want [%v]", got, want) } tim.Schedule(e4, now.Add(3*time.Second)) if got, want := tim.head.next.next.event, e4; got != want { t.Errorf("got [%v] want [%v]", got, want) } if got, want := tim.tail.event, e3; got != want { t.Errorf("got [%v] want [%v]", got, want) } if got, want := tim.head.next.next.next.event, e3; got != want { t.Errorf("got [%v] want [%v]", got, want) } zs := tim.ZeroStarting() if got, want := zs.head.when.Second(), 0; got != want { t.Errorf("got [%v:%T] want [%v:%T]", got, got, want, want) } if got, want := zs.head.next.when.Second(), 0; got != want { t.Errorf("got [%v:%T] want [%v:%T]", got, got, want, want) } if got, want := zs.head.next.next.when.Second(), 2; got != want { t.Errorf("got [%v:%T] want [%v:%T]", got, got, want, want) } if got, want := zs.head.next.next.next.when.Second(), 4; got != want { t.Errorf("got [%v:%T] want [%v:%T]", got, got, want, want) } } // BenchmarkSchedule benchmarks the schedule method with different scenarios func BenchmarkSchedule(b *testing.B) { now := time.Now() b.Run("EmptyTimeline", func(b *testing.B) { for i := 0; i < b.N; i++ { tim := NewTimeline() event := &scheduledTimelineEvent{ when: now.Add(time.Duration(i) * time.Millisecond), event: testEvent{id: i}, } tim.schedule(event) } }) b.Run("AppendToTail", func(b *testing.B) { tim := NewTimeline() // Pre-populate with some events for i := 0; i < 100; i++ { tim.schedule(&scheduledTimelineEvent{ when: now.Add(time.Duration(i) * time.Millisecond), event: testEvent{id: i}, }) } b.ResetTimer() for i := 0; i < b.N; i++ { event := &scheduledTimelineEvent{ when: now.Add(time.Duration(100+i) * time.Millisecond), event: testEvent{id: 100 + i}, } tim.schedule(event) } }) b.Run("PrependToHead", func(b *testing.B) { tim := NewTimeline() // Pre-populate with some events starting from a future time baseTime := now.Add(1 * time.Second) for i := 0; i < 100; i++ { tim.schedule(&scheduledTimelineEvent{ when: baseTime.Add(time.Duration(i) * time.Millisecond), event: testEvent{id: i}, }) } b.ResetTimer() for i := 0; i < b.N; i++ { event := &scheduledTimelineEvent{ when: now.Add(time.Duration(i) * time.Millisecond), event: testEvent{id: -i}, } tim.schedule(event) } }) b.Run("InsertMiddle", func(b *testing.B) { tim := NewTimeline() // Pre-populate with events at regular intervals for i := 0; i < 100; i++ { tim.schedule(&scheduledTimelineEvent{ when: now.Add(time.Duration(i*10) * time.Millisecond), event: testEvent{id: i * 10}, }) } b.ResetTimer() for i := 0; i < b.N; i++ { // Insert events in the middle of existing intervals event := &scheduledTimelineEvent{ when: now.Add(time.Duration(i%100*10+5) * time.Millisecond), event: testEvent{id: i%100*10 + 5}, } tim.schedule(event) } }) b.Run("LargeTimeline", func(b *testing.B) { tim := NewTimeline() // Pre-populate with many events for i := 0; i < 1000; i++ { tim.schedule(&scheduledTimelineEvent{ when: now.Add(time.Duration(i) * time.Millisecond), event: testEvent{id: i}, }) } b.ResetTimer() for i := 0; i < b.N; i++ { // Insert events at random positions in the timeline event := &scheduledTimelineEvent{ when: now.Add(time.Duration(i%1000) * time.Millisecond), event: testEvent{id: 1000 + i}, } tim.schedule(event) } }) }