Add projects

frontend/tests/apiError.test.ts

@@ -0,0 +1,51 @@
+import { describe, expect, test } from 'vitest';
+import { parseApiErrorResponse } from '../src/services/api/apiError';
+
+describe('Management API error parsing', () => {
+  test('prefers the human-readable message and preserves the API error code', () => {
+    const result = parseApiErrorResponse(
+      {
+        error: 'plugin_install_failed',
+        message: 'download plugin archive: 404 Not Found',
+      },
+      'Request failed with status code 502'
+    );
+
+    expect(result).toEqual({
+      message: 'download plugin archive: 404 Not Found',
+      apiCode: 'plugin_install_failed',
+    });
+  });
+
+  test('falls back to a string error used by legacy endpoints', () => {
+    expect(parseApiErrorResponse({ error: 'invalid body' }, 'Bad Request')).toEqual({
+      message: 'invalid body',
+      apiCode: 'invalid body',
+    });
+  });
+
+  test('supports nested error messages and codes', () => {
+    expect(
+      parseApiErrorResponse(
+        { error: { code: 'invalid_config', message: 'plugins-dir is invalid' } },
+        'Bad Request'
+      )
+    ).toEqual({
+      message: 'plugins-dir is invalid',
+      apiCode: 'invalid_config',
+    });
+  });
+
+  test('uses a text response body before the transport fallback', () => {
+    expect(parseApiErrorResponse('upstream unavailable', 'Network Error')).toEqual({
+      message: 'upstream unavailable',
+    });
+  });
+
+  test('uses the transport message for an unknown response shape', () => {
+    expect(parseApiErrorResponse({ error: null }, 'Network Error')).toEqual({
+      message: 'Network Error',
+      apiCode: undefined,
+    });
+  });
+});