hhs
e967d89e7e
实现基于 Xiaomi MiMo TTS API 的语音合成 provider，使用冰糖音色。 - 新增 MiMoService 实现 tts.Service 接口 - 使用 chat/completions 格式，与 MiMo STT 保持一致 - 在 main.go 添加 TTS provider 切换逻辑（mimo/xiaomi） - 配置文件默认音色设为冰糖 - 包含完整测试覆盖（9 个测试用例）
406 lines
11 KiB
Go
406 lines
11 KiB
Go
package tts
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import (
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"context"
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"encoding/base64"
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"net/http/httptest"
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"strings"
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"sync/atomic"
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"testing"
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"time"
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"go.uber.org/zap"
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)
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// mockMiMoTTSServer 创建模拟 MiMo TTS API 的 HTTP 服务器。
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func mockMiMoTTSServer(t *testing.T, handler http.HandlerFunc) *httptest.Server {
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t.Helper()
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return httptest.NewServer(handler)
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}
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// buildMiMoTTSResponse 构造 MiMo TTS 非流式响应 JSON。
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func buildMiMoTTSResponse(audioData string) []byte {
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resp := mimoTTSResponse{
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Choices: []struct {
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Message struct {
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Audio struct {
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Data string `json:"data"`
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} `json:"audio"`
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} `json:"message"`
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}{
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{
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Message: struct {
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Audio struct {
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Data string `json:"data"`
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} `json:"audio"`
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}{
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Audio: struct {
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Data string `json:"data"`
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}{Data: audioData},
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},
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},
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},
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}
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data, _ := json.Marshal(resp)
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return data
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}
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func TestMiMoService_SynthesizeStream_Success(t *testing.T) {
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var callCount int32
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srv := mockMiMoTTSServer(t, func(w http.ResponseWriter, r *http.Request) {
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atomic.AddInt32(&callCount, 1)
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if r.Method != http.MethodPost {
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t.Errorf("method = %s, want POST", r.Method)
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}
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if !strings.Contains(r.URL.Path, "/chat/completions") {
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t.Errorf("path = %s, should contain /chat/completions", r.URL.Path)
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}
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// 验证 api-key 认证头
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apiKey := r.Header.Get("api-key")
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if apiKey != "test-key" {
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t.Errorf("api-key = %q, want %q", apiKey, "test-key")
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}
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// 验证请求体
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body, _ := io.ReadAll(r.Body)
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var req mimoTTSRequest
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if err := json.Unmarshal(body, &req); err != nil {
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t.Errorf("unmarshal request: %v", err)
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}
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if req.Model != "mimo-v2.5-tts" {
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t.Errorf("model = %q, want %q", req.Model, "mimo-v2.5-tts")
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}
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if len(req.Messages) != 1 || req.Messages[0].Role != "assistant" {
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t.Errorf("expected 1 assistant message, got %d messages", len(req.Messages))
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}
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if req.Audio.Voice != "冰糖" {
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t.Errorf("voice = %q, want %q", req.Audio.Voice, "冰糖")
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}
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if req.Audio.Format != "mp3" {
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t.Errorf("format = %q, want %q", req.Audio.Format, "mp3")
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}
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// 返回假音频数据（base64 编码）
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audioB64 := base64.StdEncoding.EncodeToString([]byte("fake-mp3-data"))
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w.Header().Set("Content-Type", "application/json")
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w.Write(buildMiMoTTSResponse(audioB64))
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})
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defer srv.Close()
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svc := NewMiMoService("test-key", "", "冰糖", srv.URL, 5, zap.NewNop().Sugar())
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textStream := sendSentences("你好", "世界", "！")
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ch, err := svc.SynthesizeStream(context.Background(), textStream, Options{
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Voice: "冰糖", OutputFmt: "mp3", SampleRate: 24000,
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})
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if err != nil {
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t.Fatalf("SynthesizeStream() error: %v", err)
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}
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var chunks []Chunk
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for c := range ch {
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chunks = append(chunks, c)
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}
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// 应该有 3 个音频 chunk + 1 个 IsLast 标记
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if len(chunks) != 4 {
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t.Fatalf("got %d chunks, want 4", len(chunks))
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}
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// 验证前 3 个有音频数据
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for i := 0; i < 3; i++ {
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if string(chunks[i].Audio) != "fake-mp3-data" {
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t.Errorf("chunk[%d].Audio = %q, want %q", i, string(chunks[i].Audio), "fake-mp3-data")
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}
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if chunks[i].IsLast {
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t.Errorf("chunk[%d].IsLast should be false", i)
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}
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}
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// 验证最后一个是 IsLast
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if !chunks[3].IsLast {
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t.Error("last chunk should be IsLast")
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}
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if chunks[3].Audio != nil {
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t.Error("last chunk Audio should be nil")
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}
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// 验证调用了 3 次 API（3 个句子）
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if atomic.LoadInt32(&callCount) != 3 {
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t.Errorf("API called %d times, want 3", callCount)
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}
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}
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func TestMiMoService_SynthesizeStream_APIError(t *testing.T) {
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srv := mockMiMoTTSServer(t, func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusInternalServerError)
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fmt.Fprintf(w, "internal error")
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})
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defer srv.Close()
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svc := NewMiMoService("test-key", "", "冰糖", srv.URL, 5, zap.NewNop().Sugar())
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textStream := sendSentences("你好")
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ch, err := svc.SynthesizeStream(context.Background(), textStream, Options{})
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if err != nil {
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t.Fatalf("SynthesizeStream() error: %v", err)
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}
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// 应该只有一个 IsLast chunk（音频被跳过）
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var chunks []Chunk
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for c := range ch {
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chunks = append(chunks, c)
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}
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if len(chunks) != 1 {
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t.Fatalf("got %d chunks, want 1 (IsLast only)", len(chunks))
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}
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if !chunks[0].IsLast {
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t.Error("chunk should be IsLast")
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}
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}
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func TestMiMoService_SynthesizeStream_Timeout(t *testing.T) {
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srv := mockMiMoTTSServer(t, func(w http.ResponseWriter, r *http.Request) {
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time.Sleep(3 * time.Second)
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audioB64 := base64.StdEncoding.EncodeToString([]byte("late-mp3"))
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w.Header().Set("Content-Type", "application/json")
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w.Write(buildMiMoTTSResponse(audioB64))
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})
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defer srv.Close()
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// 1 秒超时
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svc := NewMiMoService("test-key", "", "冰糖", srv.URL, 1, zap.NewNop().Sugar())
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textStream := sendSentences("很长的句子")
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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ch, err := svc.SynthesizeStream(ctx, textStream, Options{})
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if err != nil {
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t.Fatalf("SynthesizeStream() error: %v", err)
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}
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var chunks []Chunk
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for c := range ch {
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chunks = append(chunks, c)
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}
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// 超时后音频被跳过，只有 IsLast
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if len(chunks) != 1 {
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t.Fatalf("got %d chunks, want 1", len(chunks))
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}
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if !chunks[0].IsLast {
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t.Error("chunk should be IsLast")
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}
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}
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func TestMiMoService_SynthesizeStream_EmptyText(t *testing.T) {
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var callCount int32
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srv := mockMiMoTTSServer(t, func(w http.ResponseWriter, r *http.Request) {
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atomic.AddInt32(&callCount, 1)
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audioB64 := base64.StdEncoding.EncodeToString([]byte("mp3"))
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w.Header().Set("Content-Type", "application/json")
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w.Write(buildMiMoTTSResponse(audioB64))
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})
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defer srv.Close()
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svc := NewMiMoService("test-key", "", "冰糖", srv.URL, 5, zap.NewNop().Sugar())
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// 空句子应该被跳过
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textStream := sendSentences("", "你好", "")
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ch, err := svc.SynthesizeStream(context.Background(), textStream, Options{})
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if err != nil {
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t.Fatalf("SynthesizeStream() error: %v", err)
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}
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var chunks []Chunk
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for c := range ch {
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chunks = append(chunks, c)
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}
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// 只有 "你好" 应该被合成
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if atomic.LoadInt32(&callCount) != 1 {
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t.Errorf("API called %d times, want 1", callCount)
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}
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// 1 个音频 + 1 个 IsLast
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if len(chunks) != 2 {
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t.Fatalf("got %d chunks, want 2", len(chunks))
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}
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}
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func TestMiMoService_SynthesizeStream_ContextCancelled(t *testing.T) {
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srv := mockMiMoTTSServer(t, func(w http.ResponseWriter, r *http.Request) {
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audioB64 := base64.StdEncoding.EncodeToString([]byte("mp3"))
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w.Header().Set("Content-Type", "application/json")
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w.Write(buildMiMoTTSResponse(audioB64))
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})
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defer srv.Close()
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svc := NewMiMoService("test-key", "", "冰糖", srv.URL, 5, zap.NewNop().Sugar())
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textStream := make(chan string, 3)
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textStream <- "第一句"
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textStream <- "第二句"
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textStream <- "第三句"
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close(textStream)
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ctx, cancel := context.WithCancel(context.Background())
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// 立即取消
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cancel()
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ch, err := svc.SynthesizeStream(ctx, textStream, Options{})
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if err != nil {
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t.Fatalf("SynthesizeStream() error: %v", err)
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}
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// 消费 channel，应该很快结束
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var count int
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for range ch {
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count++
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}
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// 可能收到 0 个或 1 个 chunk，取决于时序
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t.Logf("received %d chunks after context cancel", count)
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}
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func TestMiMoService_SynthesizeStream_PartialFailure(t *testing.T) {
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var callCount int32
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srv := mockMiMoTTSServer(t, func(w http.ResponseWriter, r *http.Request) {
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n := atomic.AddInt32(&callCount, 1)
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if n == 2 {
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// 第二个句子失败
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w.WriteHeader(http.StatusInternalServerError)
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fmt.Fprintf(w, "error")
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return
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}
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audioB64 := base64.StdEncoding.EncodeToString([]byte(fmt.Sprintf("mp3-%d", n)))
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w.Header().Set("Content-Type", "application/json")
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w.Write(buildMiMoTTSResponse(audioB64))
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})
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defer srv.Close()
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svc := NewMiMoService("test-key", "", "冰糖", srv.URL, 5, zap.NewNop().Sugar())
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textStream := sendSentences("第一句", "第二句", "第三句")
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ch, err := svc.SynthesizeStream(context.Background(), textStream, Options{})
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if err != nil {
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t.Fatalf("SynthesizeStream() error: %v", err)
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}
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var chunks []Chunk
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for c := range ch {
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chunks = append(chunks, c)
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}
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// 2 个成功音频 + 1 个 IsLast（第二句被跳过）
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if len(chunks) != 3 {
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t.Fatalf("got %d chunks, want 3", len(chunks))
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}
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if !chunks[len(chunks)-1].IsLast {
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t.Error("last chunk should be IsLast")
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}
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}
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func TestMiMoService_SynthesizeStream_CustomVoice(t *testing.T) {
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srv := mockMiMoTTSServer(t, func(w http.ResponseWriter, r *http.Request) {
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body, _ := io.ReadAll(r.Body)
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var req mimoTTSRequest
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if err := json.Unmarshal(body, &req); err != nil {
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t.Errorf("unmarshal request: %v", err)
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}
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if req.Audio.Voice != "茉莉" {
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t.Errorf("voice = %q, want %q", req.Audio.Voice, "茉莉")
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}
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audioB64 := base64.StdEncoding.EncodeToString([]byte("mp3"))
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w.Header().Set("Content-Type", "application/json")
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w.Write(buildMiMoTTSResponse(audioB64))
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})
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defer srv.Close()
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svc := NewMiMoService("test-key", "", "冰糖", srv.URL, 5, zap.NewNop().Sugar())
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textStream := sendSentences("你好")
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ch, err := svc.SynthesizeStream(context.Background(), textStream, Options{Voice: "茉莉"})
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if err != nil {
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t.Fatalf("SynthesizeStream() error: %v", err)
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}
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for range ch {
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}
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}
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func TestMiMoService_SynthesizeStream_DefaultVoice(t *testing.T) {
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srv := mockMiMoTTSServer(t, func(w http.ResponseWriter, r *http.Request) {
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body, _ := io.ReadAll(r.Body)
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var req mimoTTSRequest
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if err := json.Unmarshal(body, &req); err != nil {
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t.Errorf("unmarshal request: %v", err)
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}
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// 未指定 voice 时应使用默认 "冰糖"
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if req.Audio.Voice != "冰糖" {
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t.Errorf("voice = %q, want %q (default)", req.Audio.Voice, "冰糖")
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}
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audioB64 := base64.StdEncoding.EncodeToString([]byte("mp3"))
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w.Header().Set("Content-Type", "application/json")
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w.Write(buildMiMoTTSResponse(audioB64))
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})
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defer srv.Close()
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// 不指定 voice
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svc := NewMiMoService("test-key", "", "", srv.URL, 5, zap.NewNop().Sugar())
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textStream := sendSentences("你好")
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ch, err := svc.SynthesizeStream(context.Background(), textStream, Options{})
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if err != nil {
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t.Fatalf("SynthesizeStream() error: %v", err)
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}
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for range ch {
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}
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}
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func TestMiMoService_SynthesizeStream_EmptyAudioData(t *testing.T) {
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srv := mockMiMoTTSServer(t, func(w http.ResponseWriter, r *http.Request) {
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// 返回空音频数据
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w.Header().Set("Content-Type", "application/json")
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w.Write(buildMiMoTTSResponse(""))
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})
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defer srv.Close()
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svc := NewMiMoService("test-key", "", "冰糖", srv.URL, 5, zap.NewNop().Sugar())
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textStream := sendSentences("你好")
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ch, err := svc.SynthesizeStream(context.Background(), textStream, Options{})
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if err != nil {
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t.Fatalf("SynthesizeStream() error: %v", err)
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}
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var chunks []Chunk
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for c := range ch {
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chunks = append(chunks, c)
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}
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// 空音频数据导致错误，句子被跳过，只有 IsLast
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if len(chunks) != 1 {
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t.Fatalf("got %d chunks, want 1", len(chunks))
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}
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if !chunks[0].IsLast {
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t.Error("chunk should be IsLast")
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}
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}
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