Import tests: cshare-app/src/test/api

Import the existing local project snapshot. This commit organizes existing files; it does not represent newly developed functionality.

cshare-app/src/test/api.test.js

@@ -0,0 +1,82 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+
+// Mock fetch globally
+const mockFetch = vi.fn();
+global.fetch = mockFetch;
+
+// We import after setting up mocks
+const mockXhr = {
+  open: vi.fn(),
+  send: vi.fn(),
+  setRequestHeader: vi.fn(),
+  withCredentials: false,
+  upload: { onprogress: null },
+  onload: null,
+  onerror: null,
+};
+
+vi.stubGlobal('XMLHttpRequest', vi.fn(() => mockXhr));
+
+// Helper to reset module cache between tests
+beforeEach(() => {
+  vi.clearAllMocks();
+  mockXhr.status = 200;
+  mockXhr.responseText = '{}';
+});
+
+describe('api helpers', () => {
+  it('downloadUrl returns the correct path', async () => {
+    const { downloadUrl } = await import('../lib/api.js');
+    const url = downloadUrl('abc123');
+    expect(url).toContain('/api/v1/links/abc123/download');
+  });
+
+  it('previewUrl returns the correct path', async () => {
+    const { previewUrl } = await import('../lib/api.js');
+    const url = previewUrl('xyz');
+    expect(url).toContain('/api/v1/links/xyz/preview');
+  });
+
+  it('listFiles parses response data array', async () => {
+    const files = [{ id: '1', originalName: 'test.txt' }];
+    mockFetch.mockResolvedValueOnce({
+      ok: true,
+      status: 200,
+      json: async () => ({ data: files }),
+    });
+
+    const { listFiles } = await import('../lib/api.js');
+    const result = await listFiles();
+    expect(result).toEqual(files);
+    expect(mockFetch).toHaveBeenCalledWith(
+      expect.stringContaining('/api/v1/files'),
+      expect.objectContaining({ credentials: 'include' }),
+    );
+  });
+
+  it('deleteFile calls DELETE and handles 204', async () => {
+    mockFetch.mockResolvedValueOnce({
+      ok: true,
+      status: 204,
+      json: async () => { throw new Error('no body'); },
+    });
+
+    const { deleteFile } = await import('../lib/api.js');
+    await expect(deleteFile('file-id')).resolves.toBeUndefined();
+    expect(mockFetch).toHaveBeenCalledWith(
+      expect.stringContaining('/api/v1/files/file-id'),
+      expect.objectContaining({ method: 'DELETE' }),
+    );
+  });
+
+  it('listFiles throws on non-ok response', async () => {
+    mockFetch.mockResolvedValueOnce({
+      ok: false,
+      status: 401,
+      json: async () => ({ error: 'Unauthorized' }),
+    });
+
+    const { listFiles } = await import('../lib/api.js');
+    await expect(listFiles()).rejects.toThrow('Unauthorized');
+  });
+});