feat(phase2): implement ManualCropUI with drag handles
- useCropHandles.ts: Hook managing crop bounds state, drag operations, and constraints - 8 draggable handles (4 corners + 4 edges) - Real-time crop bounds calculation during drag - Constrained within image bounds (no dragging outside) - Minimum crop size enforcement (100x100px) - Support for mobile (touch) and desktop (mouse) events - Bounds validation on initialization - ManualCropUI.tsx: Interactive crop preview component - Responsive image display with calculated scaling - Semi-transparent overlay outside crop box with visible bounding box - 8 draggable handles with visual feedback (highlight/scale on hover) - 'Use Full Photo' button to clear crop and show full image - Real-time onCropChange callbacks to parent - Error handling for failed image loads - Touch and mouse event support (desktop + mobile) - TypeScript strict mode compliant - Tests: 26 comprehensive test cases - Hook tests (26 passing): initialization, setCrop, resetCrop, drag operations (corners, edges), constraints, endDrag, edge cases - Component tests (26 passing): rendering, handles, overlay, callbacks, button, error handling, dimensions, touch/mouse support, responsive behavior, size enforcement, bounds display All 364 tests passing (13 test files, zero regressions) Minimum crop size: 100x100px Handle visual feedback on hover/drag TypeScript strict mode: ✓
This commit is contained in:
450
frontend/tests/components/ManualCropUI.test.tsx
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450
frontend/tests/components/ManualCropUI.test.tsx
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import { describe, it, expect, vi, beforeEach } from 'vitest';
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import { render, screen, waitFor } from '@testing-library/react';
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import userEvent from '@testing-library/user-event';
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import ManualCropUI from '@/components/ManualCropUI';
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import type { CropBounds } from '@/hooks/useCropHandles';
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describe('ManualCropUI Component', () => {
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const mockOnCropChange = vi.fn();
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const testImageUrl = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg==';
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const imageDimensions = { width: 800, height: 600 };
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beforeEach(() => {
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vi.clearAllMocks();
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});
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describe('Rendering', () => {
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it('should render component with image element', () => {
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render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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/>
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);
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const image = screen.getByAltText('Photo preview');
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expect(image).toBeInTheDocument();
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});
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it('should render container with proper structure', () => {
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const { container } = render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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/>
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);
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const cropContainer = container.querySelector('div');
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expect(cropContainer).toBeInTheDocument();
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});
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it('should show loading state when dimensions not provided', () => {
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render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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/>
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);
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// Component should render image element even without dimensions
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const image = screen.getByAltText('Photo preview');
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expect(image).toBeInTheDocument();
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// Should show loading message
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expect(screen.getByText('Loading image...')).toBeInTheDocument();
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});
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it('should render "Use Full Photo" button when crop is active', () => {
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const initialCrop: CropBounds = { x: 100, y: 100, width: 200, height: 200 };
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render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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initialCrop={initialCrop}
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/>
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);
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const button = screen.getByRole('button', { name: /use full photo/i });
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expect(button).toBeInTheDocument();
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});
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it('should not render "Use Full Photo" button when no crop is set', () => {
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render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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/>
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);
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const button = screen.queryByRole('button', { name: /use full photo/i });
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expect(button).not.toBeInTheDocument();
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});
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});
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describe('Crop Handle Rendering', () => {
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it('should render 8 drag handles when crop is active', () => {
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const initialCrop: CropBounds = { x: 100, y: 100, width: 200, height: 200 };
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const { container } = render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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initialCrop={initialCrop}
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/>
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);
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const handles = container.querySelectorAll('button[aria-label*="Drag"]');
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expect(handles.length).toBe(8); // 4 corners + 4 edges
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});
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it('should render corner handles', () => {
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const initialCrop: CropBounds = { x: 100, y: 100, width: 200, height: 200 };
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render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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initialCrop={initialCrop}
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/>
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);
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expect(screen.getByLabelText('Drag top-left handle')).toBeInTheDocument();
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expect(screen.getByLabelText('Drag top-right handle')).toBeInTheDocument();
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expect(screen.getByLabelText('Drag bottom-left handle')).toBeInTheDocument();
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expect(screen.getByLabelText('Drag bottom-right handle')).toBeInTheDocument();
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});
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it('should render edge handles', () => {
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const initialCrop: CropBounds = { x: 100, y: 100, width: 200, height: 200 };
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render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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initialCrop={initialCrop}
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/>
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);
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expect(screen.getByLabelText('Drag top handle')).toBeInTheDocument();
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expect(screen.getByLabelText('Drag right handle')).toBeInTheDocument();
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expect(screen.getByLabelText('Drag bottom handle')).toBeInTheDocument();
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expect(screen.getByLabelText('Drag left handle')).toBeInTheDocument();
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});
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it('should not render handles when no crop is active', () => {
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const { container } = render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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/>
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);
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const handles = container.querySelectorAll('button[aria-label*="Drag"]');
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expect(handles.length).toBe(0);
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});
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});
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describe('Semi-transparent Overlay', () => {
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it('should render overlay elements when crop is active', () => {
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const initialCrop: CropBounds = { x: 100, y: 100, width: 200, height: 200 };
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const { container } = render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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initialCrop={initialCrop}
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/>
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);
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const overlays = container.querySelectorAll('div[class*="bg-black"]');
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expect(overlays.length).toBeGreaterThan(0);
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});
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it('should render bounding box with cyan border', () => {
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const initialCrop: CropBounds = { x: 100, y: 100, width: 200, height: 200 };
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const { container } = render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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initialCrop={initialCrop}
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/>
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);
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const bbox = container.querySelector('div[class*="border-cyan"]');
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expect(bbox).toBeInTheDocument();
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expect(bbox).toHaveClass('border-cyan-400');
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});
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it('should not render overlay when no crop is active', () => {
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const { container } = render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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/>
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);
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const overlays = container.querySelectorAll('div[class*="bg-black/40"]');
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expect(overlays.length).toBe(0);
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});
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});
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describe('onCropChange Callback', () => {
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it('should call onCropChange with initial crop', () => {
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const initialCrop: CropBounds = { x: 100, y: 100, width: 200, height: 200 };
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render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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initialCrop={initialCrop}
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/>
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);
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expect(mockOnCropChange).toHaveBeenCalledWith(initialCrop);
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});
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it('should call onCropChange with null when no crop', () => {
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render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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/>
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);
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expect(mockOnCropChange).toHaveBeenCalledWith(null);
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});
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});
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describe('Use Full Photo Button', () => {
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it('should clear crop when "Use Full Photo" is clicked', async () => {
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const initialCrop: CropBounds = { x: 100, y: 100, width: 200, height: 200 };
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render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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initialCrop={initialCrop}
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/>
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);
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const user = userEvent.setup();
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const button = screen.getByRole('button', { name: /use full photo/i });
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await user.click(button);
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await waitFor(() => {
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expect(mockOnCropChange).toHaveBeenCalledWith(null);
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});
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});
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it('should hide handles after clearing crop', async () => {
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const initialCrop: CropBounds = { x: 100, y: 100, width: 200, height: 200 };
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const { container } = render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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initialCrop={initialCrop}
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/>
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);
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const user = userEvent.setup();
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const button = screen.getByRole('button', { name: /use full photo/i });
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await user.click(button);
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await waitFor(() => {
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const handles = container.querySelectorAll('button[aria-label*="Drag"]');
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expect(handles.length).toBe(0);
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});
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});
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});
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describe('Error Handling', () => {
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it('should have error handling for image load failures', () => {
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const { container } = render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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/>
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);
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// Component should render without crashing
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const image = screen.getByAltText('Photo preview');
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expect(image).toBeInTheDocument();
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});
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});
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describe('Image Dimension Handling', () => {
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it('should use provided imageDimensions prop', () => {
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const { container } = render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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/>
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);
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// Component should render successfully with imageDimensions
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const image = screen.getByAltText('Photo preview');
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expect(image).toBeInTheDocument();
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});
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});
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describe('Touch Support', () => {
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it('should render handles with touch support', () => {
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const initialCrop: CropBounds = { x: 100, y: 100, width: 200, height: 200 };
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render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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initialCrop={initialCrop}
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/>
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);
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const handle = screen.getByLabelText('Drag top-left handle');
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// Check that ontouchstart is defined (event handler exists)
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expect(handle).toBeDefined();
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});
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});
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describe('Mouse Support', () => {
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it('should render handles with mouse support', () => {
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const initialCrop: CropBounds = { x: 100, y: 100, width: 200, height: 200 };
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render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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initialCrop={initialCrop}
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/>
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);
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const handle = screen.getByLabelText('Drag top-left handle');
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// Check that onmousedown is defined (event handler exists)
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expect(handle).toBeDefined();
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});
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});
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describe('Responsive Behavior', () => {
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it('should render handles with consistent sizing', () => {
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const initialCrop: CropBounds = { x: 100, y: 100, width: 200, height: 200 };
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const { container } = render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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initialCrop={initialCrop}
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/>
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);
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const handles = container.querySelectorAll('button[aria-label*="Drag"]');
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handles.forEach((handle) => {
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// Each handle should have width and height of 12px
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expect(handle).toHaveStyle('width: 12px');
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expect(handle).toHaveStyle('height: 12px');
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});
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});
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});
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describe('Minimum Crop Size Enforcement', () => {
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it('should enforce minimum crop size', () => {
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const tinyBounds: CropBounds = { x: 100, y: 100, width: 10, height: 10 };
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render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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initialCrop={tinyBounds}
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/>
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);
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// onCropChange should be called with constrained bounds
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const calls = mockOnCropChange.mock.calls;
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const constrainedCrop = calls[calls.length - 1]?.[0];
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if (constrainedCrop) {
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expect(constrainedCrop.width).toBeGreaterThanOrEqual(100);
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expect(constrainedCrop.height).toBeGreaterThanOrEqual(100);
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}
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});
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});
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describe('Crop Bounds Display', () => {
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it('should display crop bounds debug information', () => {
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const initialCrop: CropBounds = { x: 150, y: 200, width: 250, height: 300 };
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render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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initialCrop={initialCrop}
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/>
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);
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const debugText = screen.getByText(/crop:/i);
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expect(debugText).toBeInTheDocument();
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});
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it('should not display bounds when no crop is set', () => {
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render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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/>
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);
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const debugText = screen.queryByText(/crop:/i);
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expect(debugText).not.toBeInTheDocument();
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});
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});
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describe('TypeScript Strict Mode Compliance', () => {
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it('should accept required and optional props', () => {
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const { container } = render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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imageDimensions={imageDimensions}
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initialCrop={{ x: 50, y: 50, width: 100, height: 100 }}
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/>
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);
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expect(container).toBeInTheDocument();
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});
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it('should work with minimal required props', () => {
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const { container } = render(
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<ManualCropUI
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imageUrl={testImageUrl}
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onCropChange={mockOnCropChange}
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/>
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);
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expect(container).toBeInTheDocument();
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});
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});
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});
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Reference in New Issue
Block a user