155 lines
3.8 KiB
Go
155 lines
3.8 KiB
Go
package audio
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import (
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"math"
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"os"
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"path/filepath"
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"testing"
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)
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func TestAttenuation(t *testing.T) {
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if a := attenuation(0, 16); a != 1 {
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t.Fatalf("零距离衰减期望 1，实际 %v", a)
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}
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if a := attenuation(8, 16); a != 0.5 {
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t.Fatalf("8 格衰减期望 0.5，实际 %v", a)
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}
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if a := attenuation(16, 16); a != 0 {
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t.Fatalf("16 格衰减期望 0，实际 %v", a)
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}
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if a := attenuation(30, 16); a != 0 {
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t.Fatalf("超距衰减期望 0，实际 %v", a)
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}
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}
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func TestPlayParams(t *testing.T) {
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if p := PlayParams("block.stone.hit"); p.Volume != 0.25 || p.Pitch != 0.5 {
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t.Fatalf("hit 参数 %+v", p)
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}
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if p := PlayParams("block.stone.break"); p.Volume != 1 || p.Pitch != 0.8 {
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t.Fatalf("break 参数 %+v", p)
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}
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if p := PlayParams("block.grass.step"); p.Volume != 0.15 || p.Pitch != 1 {
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t.Fatalf("step 参数 %+v", p)
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}
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p := PlayParams("entity.sheep.hurt")
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if p.Volume != 1 || p.Pitch < 0.8 || p.Pitch > 1.2 {
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t.Fatalf("hurt 音调应在 0.8–1.2，实际 %+v", p)
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}
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}
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func TestBurstStreamer(t *testing.T) {
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b := sineBurst(440, 0.05)
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samples := make([][2]float64, 1024)
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total := 0
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for {
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n, ok := b.Stream(samples)
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total += n
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if ok {
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break
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}
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}
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if total != b.Len() {
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t.Fatalf("流长度期望 %d，实际 %d", b.Len(), total)
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}
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if total < 1000 {
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t.Fatalf("采样数异常: %d", total)
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}
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}
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func TestManagerSilent(t *testing.T) {
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m := New()
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defer m.Close()
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m.SetVolumes(1, 1, 1, 1)
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m.SetListener(0, 0, 0, 0)
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for i := 0; i < 100; i++ {
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m.Play("block.stone.break", float64(i), 0, 0)
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}
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}
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func TestLoadSoundsFields(t *testing.T) {
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dir := t.TempDir()
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ogg := filepath.Join(dir, "stone1.ogg")
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if err := os.WriteFile(ogg, []byte("not-ogg"), 0o644); err != nil {
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t.Fatal(err)
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}
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m := New()
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defer m.Close()
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js := []byte(`{
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"block.stone.break":{"sounds":[{"name":"dig/stone1","weight":2}],"subtitle":"subtitles.block.generic.break"},
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"block.alias":{"sounds":[{"name":"block.stone.break","type":"event"}]}
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}`)
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m.LoadSounds(js, func(name string) (string, bool) {
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if name == "dig/stone1" {
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return ogg, true
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}
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return "", false
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})
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if m.EventCount() != 2 {
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t.Fatalf("事件数=%d", m.EventCount())
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}
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if !m.HasOgg("block.stone.break") || !m.HasOgg("block.alias") {
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t.Fatal("应解析到 ogg 与 event 重定向")
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}
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if g := m.Subtitle("block.stone.break"); g != "subtitles.block.generic.break" {
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t.Fatalf("subtitle=%q", g)
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}
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}
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func TestLoadSoundsMissingOgg(t *testing.T) {
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m := New()
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defer m.Close()
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js := []byte(`{"block.stone.break":{"sounds":["dig/stone1"]}}`)
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m.LoadSounds(js, func(string) (string, bool) { return "", false })
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if m.EventCount() != 0 {
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t.Fatal("无 ogg 时事件表应为空（回退合成器）")
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}
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m.Play("block.grass.step", 0, 0, 0)
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}
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func TestCaptionsEnqueue(t *testing.T) {
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m := New()
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defer m.Close()
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m.SetListener(0, 0, 0, 0)
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m.Play("entity.sheep.ambient", 1, 0, 0)
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m.Play("entity.sheep.ambient", 1, 0, 0)
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m.Play("block.stone.break", 2, 0, 0)
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m.Play("block.stone.break", 40, 0, 0) // 超距
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got := m.Captions()
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if len(got) != 2 {
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t.Fatalf("字幕行数=%d %+v", len(got), got)
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}
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}
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func TestStereoPan(t *testing.T) {
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if p := stereoPan(0, 0, -5, 0); math.Abs(p) > 1e-9 {
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t.Fatalf("正前方 pan=%v", p)
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}
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if p := stereoPan(0, 0, 0, 0); p != 0 {
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t.Fatalf("听者自身 pan=%v", p)
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}
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if p := stereoPan(5, 0, 0, 0); p < 0.99 {
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t.Fatalf("右侧 pan=%v", p)
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}
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if p := stereoPan(-5, 0, 0, 0); p > -0.99 {
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t.Fatalf("左侧 pan=%v", p)
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}
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// yaw=0 朝 -Z，源在 +X 应右声道更大
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l, r := (1-1.0)/2, (1+1.0)/2
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src := sineBurst(440, 0.02)
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p := &panStreamer{Streamer: src, l: l, r: r}
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samples := make([][2]float64, 64)
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n, _ := p.Stream(samples)
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if n == 0 {
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t.Fatal("应有采样")
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}
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var sl, sr float64
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for i := 0; i < n; i++ {
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sl += math.Abs(samples[i][0])
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sr += math.Abs(samples[i][1])
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}
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if sr <= sl {
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t.Fatalf("右侧声源应右声道更大 L=%v R=%v", sl, sr)
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}
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}
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