Sub2API v1.0 - AI API 网关（二开初始版本，基于上游 Wei-Shaw/sub2api）

backend/migrations/composite_routes_cn_providers_migration_test.go

@@ -0,0 +1,18 @@
+package migrations
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestCompositeRoutesCNProvidersMigration(t *testing.T) {
+	content, err := FS.ReadFile("227_composite_routes_add_cn_providers.sql")
+	require.NoError(t, err)
+
+	sql := strings.Join(strings.Fields(string(content)), " ")
+	require.Contains(t, sql, "DROP CONSTRAINT IF EXISTS composite_model_routes_target_platform_check")
+	require.Contains(t, sql,
+		"CHECK (target_platform IN ('anthropic', 'openai', 'gemini', 'antigravity', 'grok', 'kimi', 'zhipu', 'deepseek'))")
+}