view data fixes

apps/website/lib/page-queries/media/GetTrackImagePageQuery.test.ts

@@ -0,0 +1,96 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import { GetTrackImagePageQuery } from './GetTrackImagePageQuery';
+import { MediaService } from '@/lib/services/media/MediaService';
+import { Result } from '@/lib/contracts/Result';
+import { TrackImageViewDataBuilder } from '@/lib/builders/view-data/TrackImageViewDataBuilder';
+import { mapToPresentationError } from '@/lib/contracts/page-queries/PresentationError';
+
+// Mock dependencies
+vi.mock('@/lib/services/media/MediaService', () => ({
+  MediaService: vi.fn(class {
+    getTrackImage = vi.fn();
+  }),
+}));
+
+vi.mock('@/lib/builders/view-data/TrackImageViewDataBuilder', () => ({
+  TrackImageViewDataBuilder: {
+    build: vi.fn(),
+  },
+}));
+
+vi.mock('@/lib/contracts/page-queries/PresentationError', () => ({
+  mapToPresentationError: vi.fn(),
+}));
+
+describe('GetTrackImagePageQuery', () => {
+  let query: GetTrackImagePageQuery;
+  let mockServiceInstance: any;
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+    query = new GetTrackImagePageQuery();
+    mockServiceInstance = {
+      getTrackImage: vi.fn(),
+    };
+    (MediaService as any).mockImplementation(function () {
+      return mockServiceInstance;
+    });
+  });
+
+  it('should return view data when service succeeds', async () => {
+    const params = { trackId: 'track-123' };
+    const apiDto = { url: 'image-url', data: 'base64-data' };
+    const viewData = { url: 'image-url', data: 'base64-data' };
+
+    mockServiceInstance.getTrackImage.mockResolvedValue(Result.ok(apiDto));
+    (TrackImageViewDataBuilder.build as any).mockReturnValue(viewData);
+
+    const result = await query.execute(params);
+
+    expect(result.isOk()).toBe(true);
+    expect(result.unwrap()).toEqual(viewData);
+    expect(MediaService).toHaveBeenCalled();
+    expect(mockServiceInstance.getTrackImage).toHaveBeenCalledWith('track-123');
+    expect(TrackImageViewDataBuilder.build).toHaveBeenCalledWith(apiDto);
+  });
+
+  it('should return mapped presentation error when service fails', async () => {
+    const params = { trackId: 'track-123' };
+    const serviceError = { type: 'notFound' };
+    const presentationError = 'notFound';
+
+    mockServiceInstance.getTrackImage.mockResolvedValue(Result.err(serviceError));
+    (mapToPresentationError as any).mockReturnValue(presentationError);
+
+    const result = await query.execute(params);
+
+    expect(result.isErr()).toBe(true);
+    expect(result.getError()).toBe(presentationError);
+    expect(mapToPresentationError).toHaveBeenCalledWith(serviceError);
+  });
+
+  it('should return serverError on exception', async () => {
+    const params = { trackId: 'track-123' };
+
+    mockServiceInstance.getTrackImage.mockRejectedValue(new Error('Network error'));
+
+    const result = await query.execute(params);
+
+    expect(result.isErr()).toBe(true);
+    expect(result.getError()).toBe('serverError');
+  });
+
+  it('should provide a static execute method', async () => {
+    const params = { trackId: 'track-123' };
+    const apiDto = { url: 'image-url', data: 'base64-data' };
+    const viewData = { url: 'image-url', data: 'base64-data' };
+
+    mockServiceInstance.getTrackImage.mockResolvedValue(Result.ok(apiDto));
+    (TrackImageViewDataBuilder.build as any).mockReturnValue(viewData);
+
+    const result = await GetTrackImagePageQuery.execute(params);
+
+    expect(result.isOk()).toBe(true);
+    expect(result.unwrap()).toEqual(viewData);
+  });
+});