view models

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

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+import { describe, it, expect } from 'vitest';
+import { RequestAvatarGenerationViewModel } from './RequestAvatarGenerationViewModel';
+
+describe('RequestAvatarGenerationViewModel', () => {
+  it('creates instance with successful generation and avatarUrl', () => {
+    const dto = {
+      success: true,
+      avatarUrl: 'https://example.com/generated-avatar.jpg',
+    };
+
+    const viewModel = new RequestAvatarGenerationViewModel(dto);
+
+    expect(viewModel.success).toBe(true);
+    expect(viewModel.avatarUrl).toBe('https://example.com/generated-avatar.jpg');
+    expect(viewModel.error).toBeUndefined();
+  });
+
+  it('creates instance with failed generation and error', () => {
+    const dto = {
+      success: false,
+      error: 'Generation failed',
+    };
+
+    const viewModel = new RequestAvatarGenerationViewModel(dto);
+
+    expect(viewModel.success).toBe(false);
+    expect(viewModel.avatarUrl).toBeUndefined();
+    expect(viewModel.error).toBe('Generation failed');
+  });
+
+  it('isSuccessful reflects success flag', () => {
+    const successVm = new RequestAvatarGenerationViewModel({ success: true });
+    const failureVm = new RequestAvatarGenerationViewModel({ success: false });
+
+    expect(successVm.isSuccessful).toBe(true);
+    expect(failureVm.isSuccessful).toBe(false);
+  });
+
+  it('hasError reflects presence of error message', () => {
+    const noErrorVm = new RequestAvatarGenerationViewModel({ success: true });
+    const errorVm = new RequestAvatarGenerationViewModel({ 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 RequestAvatarGenerationViewModel({ success: false, error: '' });
+
+    expect(viewModel.hasError).toBe(false);
+  });
+});