From 2ba1056c56435f8d98110eca18dba90dc344de66 Mon Sep 17 00:00:00 2001
From: Ariver <shanghai3168@gmail.com>
Date: Wed, 01 Jul 2026 23:57:44 +0800
Subject: [PATCH] Polish Windows overlay preview

---
 privatevoice.src/internal/engine/engine_darwin_test.go |  103 +++++++++++++++++++++++++++++++++++++--------------
 1 files changed, 74 insertions(+), 29 deletions(-)

diff --git a/privatevoice.src/internal/engine/engine_darwin_test.go b/privatevoice.src/internal/engine/engine_darwin_test.go
index a46bcea..245adc7 100644
--- a/privatevoice.src/internal/engine/engine_darwin_test.go
+++ b/privatevoice.src/internal/engine/engine_darwin_test.go
@@ -52,22 +52,22 @@
 	}
 }
 
-func TestOfflineConfigForQwen3ASRUsesQwen3Config(t *testing.T) {
+func TestOfflineConfigForZipformerUsesPlainTransducer(t *testing.T) {
 	root := t.TempDir()
 	files := map[string]string{
-		"conv_frontend": filepath.Join(root, "conv_frontend.onnx"),
-		"encoder":       filepath.Join(root, "encoder.int8.onnx"),
-		"decoder":       filepath.Join(root, "decoder.int8.onnx"),
-		"tokenizer":     filepath.Join(root, "tokenizer"),
+		"encoder": filepath.Join(root, "encoder-epoch-99-avg-1.int8.onnx"),
+		"decoder": filepath.Join(root, "decoder-epoch-99-avg-1.onnx"),
+		"joiner":  filepath.Join(root, "joiner-epoch-99-avg-1.int8.onnx"),
+		"tokens":  filepath.Join(root, "tokens.txt"),
 	}
 	resolved := model.ResolvedModel{
-		ModelID:     model.Qwen3ASRModelID,
-		BackendKind: model.BackendQwen3ASR,
+		ModelID:     model.JapaneseModelID,
+		BackendKind: model.BackendTransducer,
 		Profile: model.ModelProfile{
-			DisplayName:   "Qwen3-ASR",
-			BackendKind:   model.BackendQwen3ASR,
+			DisplayName:   "Zipformer Japanese",
+			BackendKind:   model.BackendTransducer,
 			ProviderOrder: []string{"cpu"},
-			NumThreads:    4,
+			NumThreads:    1,
 		},
 		Files: files,
 	}
@@ -76,26 +76,20 @@
 	if err != nil {
 		t.Fatal(err)
 	}
-	if config.ModelConfig.Qwen3ASR.ConvFrontend != files["conv_frontend"] {
-		t.Fatalf("conv frontend = %q, want %q", config.ModelConfig.Qwen3ASR.ConvFrontend, files["conv_frontend"])
+	if config.ModelConfig.Transducer.Encoder != files["encoder"] {
+		t.Fatalf("encoder = %q, want %q", config.ModelConfig.Transducer.Encoder, files["encoder"])
 	}
-	if config.ModelConfig.Qwen3ASR.Encoder != files["encoder"] {
-		t.Fatalf("encoder = %q, want %q", config.ModelConfig.Qwen3ASR.Encoder, files["encoder"])
+	if config.ModelConfig.Transducer.Decoder != files["decoder"] {
+		t.Fatalf("decoder = %q, want %q", config.ModelConfig.Transducer.Decoder, files["decoder"])
 	}
-	if config.ModelConfig.Qwen3ASR.Decoder != files["decoder"] {
-		t.Fatalf("decoder = %q, want %q", config.ModelConfig.Qwen3ASR.Decoder, files["decoder"])
+	if config.ModelConfig.Transducer.Joiner != files["joiner"] {
+		t.Fatalf("joiner = %q, want %q", config.ModelConfig.Transducer.Joiner, files["joiner"])
 	}
-	if config.ModelConfig.Qwen3ASR.Tokenizer != files["tokenizer"] {
-		t.Fatalf("tokenizer = %q, want %q", config.ModelConfig.Qwen3ASR.Tokenizer, files["tokenizer"])
+	if config.ModelConfig.Tokens != files["tokens"] {
+		t.Fatalf("tokens = %q, want %q", config.ModelConfig.Tokens, files["tokens"])
 	}
-	if config.ModelConfig.Qwen3ASR.MaxTotalLen != 1024 {
-		t.Fatalf("max total len = %d, want 1024", config.ModelConfig.Qwen3ASR.MaxTotalLen)
-	}
-	if config.ModelConfig.Qwen3ASR.MaxNewTokens != 256 {
-		t.Fatalf("max new tokens = %d, want 256", config.ModelConfig.Qwen3ASR.MaxNewTokens)
-	}
-	if config.ModelConfig.Tokens != "" {
-		t.Fatalf("tokens = %q, want empty for qwen3-asr", config.ModelConfig.Tokens)
+	if config.ModelConfig.ModelType != "" {
+		t.Fatalf("model type = %q, want empty for plain transducer", config.ModelConfig.ModelType)
 	}
 }
 
@@ -164,6 +158,28 @@
 	}
 }
 
+func TestXASRHeadPaddingPreparesInitialContext(t *testing.T) {
+	if xasrHeadPaddingSamples != 4000 {
+		t.Fatalf("head padding samples = %d, want 4000", xasrHeadPaddingSamples)
+	}
+	input := []float32{0.1, -0.2, 0.3}
+	got := xasrSamplesWithHeadPadding(input)
+
+	if len(got) != xasrHeadPaddingSamples+len(input) {
+		t.Fatalf("padded len = %d, want %d", len(got), xasrHeadPaddingSamples+len(input))
+	}
+	for i := 0; i < xasrHeadPaddingSamples; i++ {
+		if got[i] != 0 {
+			t.Fatalf("head padding sample %d = %v, want 0", i, got[i])
+		}
+	}
+	for i, want := range input {
+		if got[xasrHeadPaddingSamples+i] != want {
+			t.Fatalf("payload sample %d = %v, want %v", i, got[xasrHeadPaddingSamples+i], want)
+		}
+	}
+}
+
 func TestXASRRequestsReleaseTailCaptureDelay(t *testing.T) {
 	got := (&xasrStreamingEngine{}).ReleaseTailCaptureDelay()
 	if got != 300*time.Millisecond {
@@ -171,9 +187,38 @@
 	}
 }
 
-func TestOfflineSherpaDoesNotRequestReleaseTailCapture(t *testing.T) {
-	if _, ok := any(&sherpaEngine{}).(ReleaseTailCaptureEngine); ok {
-		t.Fatal("offline sherpa engine should not request release tail capture")
+func TestSenseVoiceRequestsReleaseTailCaptureDelay(t *testing.T) {
+	got := (&sherpaEngine{backendKind: model.BackendSenseVoice}).ReleaseTailCaptureDelay()
+	if got != 100*time.Millisecond {
+		t.Fatalf("ReleaseTailCaptureDelay() = %v, want 100ms", got)
+	}
+}
+
+func TestOtherSherpaModelsDoNotRequestReleaseTailCaptureDelay(t *testing.T) {
+	for _, backendKind := range []string{
+		model.BackendMoonshine,
+		model.BackendTransducer,
+		model.BackendNemoTransducer,
+		model.BackendQwen3ASR,
+	} {
+		t.Run(backendKind, func(t *testing.T) {
+			got := (&sherpaEngine{backendKind: backendKind}).ReleaseTailCaptureDelay()
+			if got != 0 {
+				t.Fatalf("ReleaseTailCaptureDelay() = %v, want 0", got)
+			}
+		})
+	}
+}
+
+func TestXASREnablesHoldPreCapture(t *testing.T) {
+	if !(&xasrStreamingEngine{}).HoldPreCaptureEnabled() {
+		t.Fatal("X-ASR should enable hold pre-capture")
+	}
+}
+
+func TestOfflineSherpaDoesNotEnableHoldPreCapture(t *testing.T) {
+	if _, ok := any(&sherpaEngine{}).(HoldPreCaptureEngine); ok {
+		t.Fatal("offline sherpa engine should not enable hold pre-capture")
 	}
 }
 

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