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package cmd
import (
"encoding/json"
"net/http"
"net/http/httptest"
"os"
"path/filepath"
"strings"
"testing"
"github.com/spf13/viper"
)
func TestBuildTTSRequest_EmotionPreset(t *testing.T) {
cases := []struct {
name string
model string
preset string
intensity string
wantEmotionType string
wantEmotionPreset string
}{
{
name: "preset on ssfm-v21",
model: "ssfm-v21",
preset: "happy",
wantEmotionType: "preset",
wantEmotionPreset: "happy",
},
{
name: "preset on ssfm-v30",
model: "ssfm-v30",
preset: "whisper",
wantEmotionType: "preset",
wantEmotionPreset: "whisper",
},
}
for _, tc := range cases {
t.Run(tc.name, func(t *testing.T) {
resetFlags()
rootCmd.Flags().Set("emotion", "preset")
rootCmd.Flags().Set("emotion-preset", tc.preset)
rootCmd.Flags().Set("model", tc.model)
req, err := buildTTSRequest(rootCmd, "hello")
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if req.Prompt == nil {
t.Fatal("expected prompt to be set")
}
if req.Prompt.EmotionType != tc.wantEmotionType {
t.Errorf("emotion_type: want %q, got %q", tc.wantEmotionType, req.Prompt.EmotionType)
}
if req.Prompt.EmotionPreset != tc.wantEmotionPreset {
t.Errorf("emotion_preset: want %q, got %q", tc.wantEmotionPreset, req.Prompt.EmotionPreset)
}
})
}
}
func TestBuildTTSRequest_EmotionIntensity(t *testing.T) {
resetFlags()
rootCmd.Flags().Set("emotion", "preset")
rootCmd.Flags().Set("emotion-preset", "happy")
rootCmd.Flags().Set("emotion-intensity", "1.5")
rootCmd.Flags().Set("model", defaultModel)
req, err := buildTTSRequest(rootCmd, "hello")
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if req.Prompt == nil || req.Prompt.EmotionIntensity == nil {
t.Fatal("expected emotion_intensity to be set")
}
if *req.Prompt.EmotionIntensity != 1.5 {
t.Errorf("emotion_intensity: want 1.5, got %g", *req.Prompt.EmotionIntensity)
}
}
func TestBuildTTSRequest_AudioParams(t *testing.T) {
cases := []struct {
name string
volume string
pitch string
tempo string
format string
wantVolume *int
wantPitch *int
wantTempo *float64
wantFormat string
}{
{
name: "volume and pitch set",
volume: "150", pitch: "6",
wantVolume: intPtr(150), wantPitch: intPtr(6),
},
{
name: "tempo set",
tempo: "1.5",
wantTempo: float64Ptr(1.5),
},
{
name: "format mp3",
format: "mp3",
wantFormat: "mp3",
},
{
name: "negative pitch",
pitch: "-6",
wantPitch: intPtr(-6),
},
}
for _, tc := range cases {
t.Run(tc.name, func(t *testing.T) {
resetFlags()
if tc.volume != "" {
rootCmd.Flags().Set("volume", tc.volume)
}
if tc.pitch != "" {
rootCmd.Flags().Set("pitch", tc.pitch)
}
if tc.tempo != "" {
rootCmd.Flags().Set("tempo", tc.tempo)
}
if tc.format != "" {
viper.Set("format", tc.format)
}
req, err := buildTTSRequest(rootCmd, "hello")
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if tc.wantVolume != nil {
if req.Output == nil || req.Output.Volume == nil || *req.Output.Volume != *tc.wantVolume {
t.Errorf("volume: want %v, got %v", tc.wantVolume, outputField(req.Output, "volume"))
}
}
if tc.wantPitch != nil {
if req.Output == nil || req.Output.AudioPitch == nil || *req.Output.AudioPitch != *tc.wantPitch {
t.Errorf("pitch: want %v, got %v", tc.wantPitch, outputField(req.Output, "pitch"))
}
}
if tc.wantTempo != nil {
if req.Output == nil || req.Output.AudioTempo == nil || *req.Output.AudioTempo != *tc.wantTempo {
t.Errorf("tempo: want %v, got %v", tc.wantTempo, outputField(req.Output, "tempo"))
}
}
if tc.wantFormat != "" {
if req.Output == nil || req.Output.AudioFormat != tc.wantFormat {
t.Errorf("format: want %q, got %q", tc.wantFormat, outputField(req.Output, "format"))
}
}
viper.Set("format", "")
})
}
}
func TestBuildTTSRequest_Seed(t *testing.T) {
resetFlags()
rootCmd.Flags().Set("seed", "42")
req, err := buildTTSRequest(rootCmd, "hello")
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if req.Seed == nil || *req.Seed != 42 {
t.Errorf("seed: want 42, got %v", req.Seed)
}
}
func TestBuildTTSRequest_Language(t *testing.T) {
resetFlags()
viper.Set("language", "eng")
defer viper.Set("language", "")
req, err := buildTTSRequest(rootCmd, "hello")
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if req.Language != "eng" {
t.Errorf("language: want %q, got %q", "eng", req.Language)
}
}
func TestBuildTTSRequest_SmartEmotionContext(t *testing.T) {
resetFlags()
rootCmd.Flags().Set("emotion", "smart")
rootCmd.Flags().Set("model", "ssfm-v30")
rootCmd.Flags().Set("prev-text", "오늘 복권에 당첨됐어요!")
rootCmd.Flags().Set("next-text", "믿기지가 않네요.")
req, err := buildTTSRequest(rootCmd, "정말요?")
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if req.Prompt == nil {
t.Fatal("expected prompt to be set")
}
if req.Prompt.EmotionType != "smart" {
t.Errorf("emotion_type: want %q, got %q", "smart", req.Prompt.EmotionType)
}
if req.Prompt.PreviousText != "오늘 복권에 당첨됐어요!" {
t.Errorf("previous_text: want %q, got %q", "오늘 복권에 당첨됐어요!", req.Prompt.PreviousText)
}
if req.Prompt.NextText != "믿기지가 않네요." {
t.Errorf("next_text: want %q, got %q", "믿기지가 않네요.", req.Prompt.NextText)
}
}
func TestBuildTTSRequest_OutputNilWhenDefaults(t *testing.T) {
resetFlags()
req, err := buildTTSRequest(rootCmd, "hello")
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if req.Output != nil {
t.Errorf("expected output to be nil when no audio params set, got %+v", req.Output)
}
if req.Prompt != nil {
t.Errorf("expected prompt to be nil when no emotion set, got %+v", req.Prompt)
}
if req.Seed != nil {
t.Errorf("expected seed to be nil when not set, got %v", req.Seed)
}
}
func TestRootCmd_OutFileSaved(t *testing.T) {
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var body map[string]interface{}
json.NewDecoder(r.Body).Decode(&body)
w.Write([]byte("fake-audio-bytes"))
}))
defer srv.Close()
outFile := filepath.Join(t.TempDir(), "out.mp3")
resetFlags()
rootCmd.SetArgs([]string{"hello", "--base-url", srv.URL, "--out", outFile})
if err := rootCmd.Execute(); err != nil {
t.Fatalf("unexpected error: %v", err)
}
data, err := os.ReadFile(outFile)
if err != nil {
t.Fatalf("output file not found: %v", err)
}
if string(data) != "fake-audio-bytes" {
t.Errorf("file content: want %q, got %q", "fake-audio-bytes", string(data))
}
}
func TestRootCmd_OutFileFormatInferredFromExtension(t *testing.T) {
var capturedFormat string
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var body struct {
Output *struct {
AudioFormat string `json:"audio_format"`
} `json:"output"`
}
json.NewDecoder(r.Body).Decode(&body)
if body.Output != nil {
capturedFormat = body.Output.AudioFormat
}
w.Write([]byte("audio"))
}))
defer srv.Close()
for _, ext := range []string{"mp3", "wav"} {
t.Run(ext, func(t *testing.T) {
capturedFormat = ""
outFile := filepath.Join(t.TempDir(), "out."+ext)
resetFlags()
rootCmd.SetArgs([]string{"hello", "--base-url", srv.URL, "--out", outFile})
if err := rootCmd.Execute(); err != nil {
t.Fatalf("unexpected error: %v", err)
}
if capturedFormat != ext {
t.Errorf("format inferred from .%s: want %q, got %q", ext, ext, capturedFormat)
}
})
}
}
// helpers
func intPtr(v int) *int { return &v }
func float64Ptr(v float64) *float64 { return &v }
func outputField(out interface{}, field string) string {
if out == nil {
return "<nil output>"
}
return "<set>"
}
// resetFlags resets cobra flag values to their defaults between tests.
// Cobra's pflag state is global, so values persist across Execute() calls.
func resetFlags() {
f := rootCmd.Flags()
if flag := f.Lookup("volume"); flag != nil {
flag.Value.Set("-1")
flag.Changed = false
}
if flag := f.Lookup("pitch"); flag != nil {
flag.Value.Set("0")
flag.Changed = false
}
if flag := f.Lookup("tempo"); flag != nil {
flag.Value.Set("-1")
flag.Changed = false
}
f.Set("emotion", "")
f.Set("emotion-preset", "")
if flag := f.Lookup("emotion-intensity"); flag != nil {
flag.Value.Set("-1")
flag.Changed = false
}
f.Set("prev-text", "")
f.Set("next-text", "")
f.Set("model", defaultModel)
if flag := f.Lookup("seed"); flag != nil {
flag.Value.Set("-1")
flag.Changed = false
}
f.Set("out", "")
f.Set("format", "")
f.Set("language", "")
if flag := f.Lookup("stream"); flag != nil {
flag.Value.Set("false")
flag.Changed = false
}
if flag := f.Lookup("target-lufs"); flag != nil {
flag.Value.Set("0")
flag.Changed = false
}
viper.Set("format", "")
viper.Set("language", "")
viper.Set("stream", nil)
viper.Set("target_lufs", nil)
}
func TestRootCmd_TargetLufsFlag(t *testing.T) {
resetFlags()
rootCmd.Flags().Set("target-lufs", "-14")
req, err := buildTTSRequest(rootCmd, "hello")
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if req.Output == nil || req.Output.TargetLUFS == nil {
t.Fatal("expected target_lufs to be set")
}
if *req.Output.TargetLUFS != -14.0 {
t.Errorf("target_lufs: want -14, got %g", *req.Output.TargetLUFS)
}
if req.Output.Volume != nil {
t.Errorf("volume should be nil when target_lufs is set, got %v", *req.Output.Volume)
}
}
func TestRootCmd_TargetLufsExplicitZero(t *testing.T) {
resetFlags()
rootCmd.Flags().Set("target-lufs", "0")
req, err := buildTTSRequest(rootCmd, "hello")
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if req.Output == nil || req.Output.TargetLUFS == nil {
t.Fatal("expected target_lufs to be set when explicitly passing 0")
}
if *req.Output.TargetLUFS != 0.0 {
t.Errorf("target_lufs: want 0, got %g", *req.Output.TargetLUFS)
}
}
func TestRootCmd_TargetLufsFromEnv(t *testing.T) {
resetFlags()
t.Setenv("TYPECAST_TARGET_LUFS", "-16")
req, err := buildTTSRequest(rootCmd, "hello")
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if req.Output == nil || req.Output.TargetLUFS == nil {
t.Fatal("expected target_lufs to be set from env")
}
if *req.Output.TargetLUFS != -16.0 {
t.Errorf("target_lufs: want -16, got %g", *req.Output.TargetLUFS)
}
}
func TestRootCmd_TargetLufsNotSetByDefault(t *testing.T) {
resetFlags()
req, err := buildTTSRequest(rootCmd, "hello")
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if req.Output != nil && req.Output.TargetLUFS != nil {
t.Errorf("expected target_lufs to be nil when not explicitly set, got %g", *req.Output.TargetLUFS)
}
}
func TestRootCmd_VolumeAndTargetLufsMutuallyExclusive(t *testing.T) {
resetFlags()
rootCmd.Flags().Set("volume", "100")
rootCmd.Flags().Set("target-lufs", "-14")
_, err := buildTTSRequest(rootCmd, "hello")
if err == nil {
t.Fatal("expected error when both --volume and --target-lufs are set")
}
if !strings.Contains(err.Error(), "cannot use both --volume and --target-lufs") {
t.Errorf("unexpected error: %v", err)
}
}
func TestRootCmd_TextValidation(t *testing.T) {
cases := []struct {
name string
text string
errMsg string
}{
{"empty text", "", "text must be between 1 and 2000 characters"},
{"text too long", strings.Repeat("a", 2001), "text must be between 1 and 2000 characters"},
{"korean text too long", strings.Repeat("가", 2001), "text must be between 1 and 2000 characters"},
}
for _, tc := range cases {
t.Run(tc.name, func(t *testing.T) {
resetFlags()
rootCmd.SetArgs([]string{tc.text})
err := rootCmd.Execute()
if err == nil {
t.Fatal("expected error, got nil")
}
if !strings.Contains(err.Error(), tc.errMsg) {
t.Errorf("want error %q, got %q", tc.errMsg, err.Error())
}
})
}
}
func TestRootCmd_AudioParamValidation(t *testing.T) {
cases := []struct {
name string
args []string
errMsg string
}{
{
name: "volume too high",
args: []string{"hello", "--volume", "201"},
errMsg: "volume must be between",
},
{
name: "pitch too high",
args: []string{"hello", "--pitch", "13"},
errMsg: "pitch must be between",
},
{
name: "tempo too high",
args: []string{"hello", "--tempo", "2.5"},
errMsg: "tempo must be between",
},
}
for _, tc := range cases {
t.Run(tc.name, func(t *testing.T) {
resetFlags()
rootCmd.SetArgs(tc.args)
err := rootCmd.Execute()
if err == nil {
t.Fatalf("expected error, got nil")
}
if !strings.Contains(err.Error(), tc.errMsg) {
t.Errorf("want error containing %q, got %q", tc.errMsg, err.Error())
}
})
}
}
func TestRootCmd_StreamFlagParsing(t *testing.T) {
resetFlags()
rootCmd.Flags().Set("stream", "true")
val, err := rootCmd.Flags().GetBool("stream")
if err != nil {
t.Fatalf("unexpected error getting stream flag: %v", err)
}
if !val {
t.Error("expected stream flag to be true")
}
}
func TestRootCmd_StreamOutFileSaved(t *testing.T) {
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if r.URL.Path != "/v1/text-to-speech/stream" {
t.Errorf("expected stream path, got %s", r.URL.Path)
}
w.Write([]byte("streamed-audio-bytes"))
}))
defer srv.Close()
outFile := filepath.Join(t.TempDir(), "stream_out.wav")
resetFlags()
rootCmd.SetArgs([]string{"hello", "--base-url", srv.URL, "--out", outFile, "--stream"})
if err := rootCmd.Execute(); err != nil {
t.Fatalf("unexpected error: %v", err)
}
data, err := os.ReadFile(outFile)
if err != nil {
t.Fatalf("output file not found: %v", err)
}
if string(data) != "streamed-audio-bytes" {
t.Errorf("file content: want %q, got %q", "streamed-audio-bytes", string(data))
}
}
func TestRootCmd_EmotionValidation(t *testing.T) {
cases := []struct {
name string
args []string
errMsg string
}{
{
name: "smart requires ssfm-v30",
args: []string{"hello", "--emotion", "smart", "--model", "ssfm-v21"},
errMsg: "emotion 'smart' is only supported with ssfm-v30",
},
{
name: "prev-text without smart emotion",
args: []string{"hello", "--prev-text", "context"},
errMsg: "--prev-text and --next-text require --emotion smart",
},
{
name: "next-text without smart emotion",
args: []string{"hello", "--next-text", "context", "--emotion", "preset"},
errMsg: "--prev-text and --next-text require --emotion smart",
},
{
name: "emotion-preset without emotion preset",
args: []string{"hello", "--emotion-preset", "happy"},
errMsg: "--emotion-preset and --emotion-intensity require --emotion preset",
},
{
name: "emotion-intensity without emotion preset",
args: []string{"hello", "--emotion-intensity", "1.5"},
errMsg: "--emotion-preset and --emotion-intensity require --emotion preset",
},
{
name: "unknown emotion type",
args: []string{"hello", "--emotion", "invalid"},
errMsg: "unknown emotion type",
},
}
for _, tc := range cases {
t.Run(tc.name, func(t *testing.T) {
resetFlags()
rootCmd.SetArgs(tc.args)
err := rootCmd.Execute()
if err == nil {
t.Fatal("expected error, got nil")
}
if !strings.Contains(err.Error(), tc.errMsg) {
t.Errorf("want error containing %q, got %q", tc.errMsg, err.Error())
}
})
}
}