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Copy pathExportButton.test.tsx
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Copy pathExportButton.test.tsx
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174 lines (134 loc) · 5.83 KB
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import { render, screen, fireEvent } from '@testing-library/react';
import '@testing-library/jest-dom/vitest';
import { describe, it, expect, vi, beforeEach } from 'vitest';
import ExportButton from './ExportButton';
import { useExportImage } from '@/hooks/useExportImage';
vi.mock('@/hooks/useExportImage', () => ({
useExportImage: vi.fn(),
}));
const mockedUseExportImage = vi.mocked(useExportImage);
describe('ExportButton', () => {
const exportImage = vi.fn().mockResolvedValue(undefined);
beforeEach(() => {
vi.clearAllMocks();
exportImage.mockResolvedValue(undefined);
mockedUseExportImage.mockReturnValue({
exportImage,
isExporting: false,
error: null,
});
});
it('renders the default "Export" trigger button, closed and not loading', () => {
render(<ExportButton />);
const trigger = screen.getByRole('button', { name: /export/i });
expect(trigger).toBeInTheDocument();
expect(trigger).not.toBeDisabled();
expect(trigger).toHaveAttribute('aria-haspopup', 'true');
expect(trigger).toHaveAttribute('aria-expanded', 'false');
expect(screen.queryByRole('menu')).not.toBeInTheDocument();
});
it('passes the provided targetSelector, filename, and scale through to the hook', () => {
render(<ExportButton targetSelector="#card" filename="my-export" scale={3} />);
expect(mockedUseExportImage).toHaveBeenCalledWith({
targetSelector: '#card',
filename: 'my-export',
scale: 3,
});
});
it('falls back to the documented defaults when no props are given', () => {
render(<ExportButton />);
expect(mockedUseExportImage).toHaveBeenCalledWith({
targetSelector: '[data-export-target]',
filename: 'commitpulse-comparison',
scale: 2,
});
});
it('appends a custom className to the wrapper while keeping the base layout classes', () => {
const { container } = render(<ExportButton className="my-custom-class" />);
const wrapper = container.firstChild as HTMLElement;
expect(wrapper.className).toContain('relative inline-block');
expect(wrapper.className).toContain('my-custom-class');
});
it('opens the format menu on click and exposes both download options', () => {
render(<ExportButton />);
fireEvent.click(screen.getByRole('button', { name: /export/i }));
expect(screen.getByRole('button', { name: /export/i })).toHaveAttribute(
'aria-expanded',
'true'
);
const menu = screen.getByRole('menu');
expect(menu).toBeInTheDocument();
expect(screen.getByRole('menuitem', { name: /download png/i })).toBeInTheDocument();
expect(screen.getByRole('menuitem', { name: /download svg/i })).toBeInTheDocument();
});
it('toggles the menu closed when the trigger is clicked a second time', () => {
render(<ExportButton />);
const trigger = screen.getByRole('button', { name: /export/i });
fireEvent.click(trigger);
expect(screen.getByRole('menu')).toBeInTheDocument();
fireEvent.click(trigger);
expect(screen.queryByRole('menu')).not.toBeInTheDocument();
expect(trigger).toHaveAttribute('aria-expanded', 'false');
});
it('closes the menu when clicking the backdrop overlay outside of it', () => {
const { container } = render(<ExportButton />);
fireEvent.click(screen.getByRole('button', { name: /export/i }));
expect(screen.getByRole('menu')).toBeInTheDocument();
const backdrop = container.querySelector('.fixed.inset-0') as HTMLElement;
expect(backdrop).toBeTruthy();
fireEvent.click(backdrop);
expect(screen.queryByRole('menu')).not.toBeInTheDocument();
});
it('calls exportImage with "png" and closes the menu when "Download PNG" is clicked', async () => {
render(<ExportButton />);
fireEvent.click(screen.getByRole('button', { name: /export/i }));
fireEvent.click(screen.getByRole('menuitem', { name: /download png/i }));
expect(screen.queryByRole('menu')).not.toBeInTheDocument();
expect(exportImage).toHaveBeenCalledTimes(1);
expect(exportImage).toHaveBeenCalledWith('png');
});
it('calls exportImage with "svg" and closes the menu when "Download SVG" is clicked', async () => {
render(<ExportButton />);
fireEvent.click(screen.getByRole('button', { name: /export/i }));
fireEvent.click(screen.getByRole('menuitem', { name: /download svg/i }));
expect(exportImage).toHaveBeenCalledTimes(1);
expect(exportImage).toHaveBeenCalledWith('svg');
});
it('shows the "Exporting…" loading state and disables the trigger while exporting', () => {
mockedUseExportImage.mockReturnValue({
exportImage,
isExporting: true,
error: null,
});
render(<ExportButton />);
const trigger = screen.getByRole('button', { name: /exporting/i });
expect(trigger).toBeDisabled();
expect(screen.queryByText(/^export$/i)).not.toBeInTheDocument();
});
it('does not render the dropdown menu while isExporting is true, even if previously opened', () => {
const { rerender } = render(<ExportButton />);
fireEvent.click(screen.getByRole('button', { name: /export/i }));
expect(screen.getByRole('menu')).toBeInTheDocument();
mockedUseExportImage.mockReturnValue({
exportImage,
isExporting: true,
error: null,
});
rerender(<ExportButton />);
expect(screen.queryByRole('menu')).not.toBeInTheDocument();
});
it('renders an alert with the error message when the hook reports an error', () => {
mockedUseExportImage.mockReturnValue({
exportImage,
isExporting: false,
error: 'Export failed. Please try again.',
});
render(<ExportButton />);
const alert = screen.getByRole('alert');
expect(alert).toHaveTextContent('Export failed. Please try again.');
});
it('does not render an alert when there is no error', () => {
render(<ExportButton />);
expect(screen.queryByRole('alert')).not.toBeInTheDocument();
});
});