view models

apps/website/lib/view-models/UploadMediaViewModel.test.ts

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+import { describe, it, expect } from 'vitest';
+import { UploadMediaViewModel } from './UploadMediaViewModel';
+
+describe('UploadMediaViewModel', () => {
+  it('creates instance with successful upload and media data', () => {
+    const dto = {
+      success: true,
+      mediaId: 'media-123',
+      url: 'https://example.com/uploaded.jpg',
+    };
+
+    const viewModel = new UploadMediaViewModel(dto);
+
+    expect(viewModel.success).toBe(true);
+    expect(viewModel.mediaId).toBe('media-123');
+    expect(viewModel.url).toBe('https://example.com/uploaded.jpg');
+    expect(viewModel.error).toBeUndefined();
+  });
+
+  it('creates instance with failed upload and error', () => {
+    const dto = {
+      success: false,
+      error: 'Upload failed',
+    };
+
+    const viewModel = new UploadMediaViewModel(dto);
+
+    expect(viewModel.success).toBe(false);
+    expect(viewModel.mediaId).toBeUndefined();
+    expect(viewModel.url).toBeUndefined();
+    expect(viewModel.error).toBe('Upload failed');
+  });
+
+  it('isSuccessful reflects success flag', () => {
+    const successVm = new UploadMediaViewModel({ success: true });
+    const failureVm = new UploadMediaViewModel({ success: false });
+
+    expect(successVm.isSuccessful).toBe(true);
+    expect(failureVm.isSuccessful).toBe(false);
+  });
+
+  it('hasError reflects presence of error message', () => {
+    const noErrorVm = new UploadMediaViewModel({ success: true });
+    const errorVm = new UploadMediaViewModel({ success: false, error: 'Something went wrong' });
+
+    expect(noErrorVm.hasError).toBe(false);
+    expect(errorVm.hasError).toBe(true);
+  });
+
+  it('treats empty error string as no error', () => {
+    const viewModel = new UploadMediaViewModel({ success: false, error: '' });
+
+    expect(viewModel.hasError).toBe(false);
+  });
+});