feat(worker): implement multi-provider text translation service with Google, Microsoft, and custom LLM support

worker/test/services/text_test.go

@@ -0,0 +1,72 @@
+package services
+
+import (
+	"testing"
+	"worker/internal/services"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+// --- Google Translate ---
+
+func TestTranslateWithGoogle_EnToZhCN(t *testing.T) {
+	result, err := services.TranslateText("Hello world", "auto", "zh-CN", "google")
+	require.NoError(t, err)
+	assert.NotEmpty(t, result)
+	t.Logf("en→zh-CN: %s", result)
+}
+
+func TestTranslateWithGoogle_ZhCNToEn(t *testing.T) {
+	result, err := services.TranslateText("你好世界", "zh-CN", "en", "google")
+	require.NoError(t, err)
+	assert.NotEmpty(t, result)
+	t.Logf("zh-CN→en: %s", result)
+}
+
+func TestTranslateWithGoogle_AutoDetect(t *testing.T) {
+	result, err := services.TranslateText("こんにちは", "auto", "en", "google")
+	require.NoError(t, err)
+	assert.NotEmpty(t, result)
+	t.Logf("auto(ja)→en: %s", result)
+}
+
+func TestTranslateWithGoogle_LongText(t *testing.T) {
+	text := "The quick brown fox jumps over the lazy dog. " +
+		"This sentence contains every letter of the English alphabet. " +
+		"It is commonly used for testing purposes."
+	result, err := services.TranslateText(text, "en", "zh-CN", "google")
+	require.NoError(t, err)
+	assert.NotEmpty(t, result)
+	t.Logf("长文本→zh-CN: %s", result)
+}
+
+// --- Microsoft Translator ---
+
+func TestTranslateWithMicrosoft_EnToZhCN(t *testing.T) {
+	result, err := services.TranslateText("Hello world", "auto", "zh-Hans", "microsoft")
+	require.NoError(t, err)
+	assert.NotEmpty(t, result)
+	t.Logf("en→zh-Hans: %s", result)
+}
+
+func TestTranslateWithMicrosoft_ZhCNToEn(t *testing.T) {
+	result, err := services.TranslateText("你好世界", "zh-Hans", "en", "microsoft")
+	require.NoError(t, err)
+	assert.NotEmpty(t, result)
+	t.Logf("zh-Hans→en: %s", result)
+}
+
+func TestTranslateWithMicrosoft_AutoDetect(t *testing.T) {
+	result, err := services.TranslateText("こんにちは", "auto", "en", "microsoft")
+	require.NoError(t, err)
+	assert.NotEmpty(t, result)
+	t.Logf("auto(ja)→en: %s", result)
+}
+
+// --- 通用 ---
+
+func TestTranslateText_UnknownProvider(t *testing.T) {
+	_, err := services.TranslateText("hello", "en", "zh-CN", "unknown_provider")
+	assert.ErrorIs(t, err, services.ErrUnknownProvider)
+}