From 62f9a3b1e84455c32971272c03163ca543e2f68f Mon Sep 17 00:00:00 2001
From: Ariver <shanghai3168@gmail.com>
Date: Wed, 03 Jun 2026 14:44:26 +0800
Subject: [PATCH] Implement Round 4 Parakeet model selection

---
 privatevoice.src/internal/modelselection/selection_test.go |   19 +++++++++++++++++--
 1 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/privatevoice.src/internal/modelselection/selection_test.go b/privatevoice.src/internal/modelselection/selection_test.go
index 47daac6..cd0fbc2 100644
--- a/privatevoice.src/internal/modelselection/selection_test.go
+++ b/privatevoice.src/internal/modelselection/selection_test.go
@@ -59,11 +59,26 @@
 	cfg := config.Default()
 	cfg.LanguageMode = config.LanguageModeAuto
 	cfg.ModelSelectionMode = config.ModelSelectionModeManual
-	cfg.SelectedModelID = model.DefaultModelID
+	cfg.SelectedModelID = model.ParakeetModelID
 
 	current := Resolve(cfg, fakeDetector{locale: "en-US"})
+	if current.ModelID != model.ParakeetModelID {
+		t.Fatalf("model id = %q, want manual selected %q", current.ModelID, model.ParakeetModelID)
+	}
+}
+
+func TestResolveManualModelFallsBackWhenLanguageIncompatible(t *testing.T) {
+	cfg := config.Default()
+	cfg.LanguageMode = config.LanguageModeAuto
+	cfg.ModelSelectionMode = config.ModelSelectionModeManual
+	cfg.SelectedModelID = model.ParakeetModelID
+
+	current := Resolve(cfg, fakeDetector{locale: "zh-CN"})
 	if current.ModelID != model.DefaultModelID {
-		t.Fatalf("model id = %q, want manual selected %q", current.ModelID, model.DefaultModelID)
+		t.Fatalf("model id = %q, want Chinese default %q", current.ModelID, model.DefaultModelID)
+	}
+	if current.FallbackReason == "" {
+		t.Fatal("expected fallback reason")
 	}
 }
 

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