test(plugins): add detection service fallback tests for claude and codex

Author: CaddyGlow

tests/unit/plugins/test_claude_detection.py

@@ -0,0 +1,40 @@
+from __future__ import annotations
+
+from pathlib import Path
+from types import SimpleNamespace
+from unittest.mock import AsyncMock, MagicMock, patch
+
+import pytest
+
+from ccproxy.config.settings import Settings
+from ccproxy.plugins.claude_api.detection_service import ClaudeAPIDetectionService
+
+
+@pytest.mark.asyncio
+async def test_claude_detection_falls_back_when_cli_missing(tmp_path: Path) -> None:
+    settings = MagicMock(spec=Settings)
+    cli_service = MagicMock()
+    cli_service.get_cli_info.return_value = {"is_available": False, "command": None}
+    cli_service.detect_cli = AsyncMock(
+        return_value=SimpleNamespace(is_available=False, version=None)
+    )
+
+    service = ClaudeAPIDetectionService(settings=settings, cli_service=cli_service)
+    service.cache_dir = tmp_path
+
+    with (
+        patch.object(
+            service,
+            "_get_claude_version",
+            AsyncMock(side_effect=FileNotFoundError("missing cli")),
+        ),
+        patch.object(
+            service,
+            "_detect_claude_headers",
+            AsyncMock(side_effect=RuntimeError("should not run")),
+        ),
+    ):
+        result = await service.initialize_detection()
+
+    assert result == service._get_fallback_data()
+    assert service.get_cached_data() == result

tests/unit/plugins/test_codex_detection.py

@@ -0,0 +1,40 @@
+from __future__ import annotations
+
+from pathlib import Path
+from types import SimpleNamespace
+from unittest.mock import AsyncMock, MagicMock, patch
+
+import pytest
+
+from ccproxy.config.settings import Settings
+from ccproxy.plugins.codex.detection_service import CodexDetectionService
+
+
+@pytest.mark.asyncio
+async def test_codex_detection_falls_back_when_cli_missing(tmp_path: Path) -> None:
+    settings = MagicMock(spec=Settings)
+    cli_service = MagicMock()
+    cli_service.get_cli_info.return_value = {"is_available": False, "command": None}
+    cli_service.detect_cli = AsyncMock(
+        return_value=SimpleNamespace(is_available=False, version=None)
+    )
+
+    service = CodexDetectionService(settings=settings, cli_service=cli_service)
+    service.cache_dir = tmp_path
+
+    with (
+        patch.object(
+            service,
+            "_get_codex_version",
+            AsyncMock(side_effect=FileNotFoundError("missing cli")),
+        ),
+        patch.object(
+            service,
+            "_detect_codex_headers",
+            AsyncMock(side_effect=RuntimeError("should not run")),
+        ),
+    ):
+        result = await service.initialize_detection()
+
+    assert result == service._get_fallback_data()
+    assert service.get_cached_data() == result