65 lines
3.0 KiB
TypeScript
65 lines
3.0 KiB
TypeScript
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import { describe, test, expect, vi, beforeEach, afterEach } from 'vitest';
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import { copyToClipboard } from './clipboard';
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describe('copyToClipboard', () => {
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const originalClipboard = (navigator as any).clipboard;
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const originalIsSecureContext = window.isSecureContext;
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const originalExecCommand = (document as any).execCommand;
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afterEach(() => {
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Object.defineProperty(navigator, 'clipboard', { value: originalClipboard, configurable: true });
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Object.defineProperty(window, 'isSecureContext', { value: originalIsSecureContext, configurable: true });
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(document as any).execCommand = originalExecCommand;
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vi.restoreAllMocks();
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});
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test('uses navigator.clipboard.writeText when available in a secure context', async () => {
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const writeText = vi.fn().mockResolvedValue(undefined);
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Object.defineProperty(navigator, 'clipboard', { value: { writeText }, configurable: true });
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Object.defineProperty(window, 'isSecureContext', { value: true, configurable: true });
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const ok = await copyToClipboard('hello');
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expect(ok).toBe(true);
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expect(writeText).toHaveBeenCalledWith('hello');
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});
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test('falls back to execCommand when clipboard API is unavailable', async () => {
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Object.defineProperty(navigator, 'clipboard', { value: undefined, configurable: true });
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Object.defineProperty(window, 'isSecureContext', { value: false, configurable: true });
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(document as any).execCommand = vi.fn().mockReturnValue(true);
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const ok = await copyToClipboard('hello');
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expect(ok).toBe(true);
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expect((document as any).execCommand).toHaveBeenCalledWith('copy');
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});
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test('falls back to execCommand when clipboard.writeText rejects', async () => {
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const writeText = vi.fn().mockRejectedValue(new Error('denied'));
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Object.defineProperty(navigator, 'clipboard', { value: { writeText }, configurable: true });
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Object.defineProperty(window, 'isSecureContext', { value: true, configurable: true });
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(document as any).execCommand = vi.fn().mockReturnValue(true);
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const ok = await copyToClipboard('hello');
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expect(ok).toBe(true);
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expect((document as any).execCommand).toHaveBeenCalledWith('copy');
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});
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test('returns false when both clipboard API and execCommand fail', async () => {
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Object.defineProperty(navigator, 'clipboard', { value: undefined, configurable: true });
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Object.defineProperty(window, 'isSecureContext', { value: false, configurable: true });
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(document as any).execCommand = vi.fn().mockReturnValue(false);
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const ok = await copyToClipboard('hello');
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expect(ok).toBe(false);
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});
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test('returns false and does not throw when execCommand itself throws', async () => {
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Object.defineProperty(navigator, 'clipboard', { value: undefined, configurable: true });
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Object.defineProperty(window, 'isSecureContext', { value: false, configurable: true });
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(document as any).execCommand = vi.fn().mockImplementation(() => { throw new Error('nope'); });
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const ok = await copyToClipboard('hello');
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expect(ok).toBe(false);
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});
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});
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