feat: complete program platform experience

backend/tests/test_settings_route.py

@@ -0,0 +1,33 @@
+import asyncio
+import unittest
+
+from pydantic import ValidationError
+
+from routes.settings_route import TranscodeQuality, get_system_metrics
+
+
+class SettingsRouteTest(unittest.TestCase):
+    def test_transcode_quality_accepts_supported_values(self):
+        quality = TranscodeQuality(label="高清", width=1920, height=1080, bitrate="5000k")
+        self.assertEqual(quality.width, 1920)
+        self.assertEqual(quality.bitrate, "5000k")
+
+    def test_transcode_quality_rejects_invalid_bitrate_and_dimensions(self):
+        invalid_values = [
+            dict(label="高清", width=100, height=1080, bitrate="5000k"),
+            dict(label="高清", width=1920, height=1080, bitrate="5000"),
+            dict(label="", width=1920, height=1080, bitrate="5M"),
+        ]
+        for value in invalid_values:
+            with self.subTest(value=value), self.assertRaises(ValidationError):
+                TranscodeQuality(**value)
+
+    def test_system_metrics_contains_bounded_resource_values(self):
+        metrics = asyncio.run(get_system_metrics(True))
+        self.assertGreaterEqual(metrics["cpu"]["count"], 1)
+        self.assertGreaterEqual(metrics["cpu"]["load_percent"], 0)
+        self.assertLessEqual(metrics["cpu"]["load_percent"], 100)
+        self.assertGreaterEqual(metrics["memory"]["used_percent"], 0)
+        self.assertLessEqual(metrics["memory"]["used_percent"], 100)
+        self.assertGreater(metrics["disk"]["total"], 0)
+        self.assertGreaterEqual(metrics["disk"]["free"], 0)