const { assert } = require('chai');
const { createScopedPrismDom } = require('../../helper/prism-dom-util');
class DummyClipboard {
constructor() {
this.text = '';
}
async readText() {
return this.text;
}
/** @param {string} data */
writeText(data) {
this.text = data;
return Promise.resolve();
}
}
describe('Copy to Clipboard', function () {
const { Prism, document, window } = createScopedPrismDom(this, {
languages: 'javascript',
plugins: 'copy-to-clipboard',
});
it('should work', function () {
const clipboard = new DummyClipboard();
window.navigator.clipboard = clipboard;
document.body.innerHTML = `<pre class="language-none"><code>foo</code></pre>`;
Prism.highlightAll();
const button = document.querySelector('button');
assert.notStrictEqual(button, null);
button.click();
assert.strictEqual(clipboard.text, 'foo');
});
it('should copy the current text even after the code block changes its text', function () {
const clipboard = new DummyClipboard();
window.navigator.clipboard = clipboard;
document.body.innerHTML = `<pre class="language-none"><code>foo</code></pre>`;
Prism.highlightAll();
const button = document.querySelector('button');
assert.notStrictEqual(button, null);
button.click();
assert.strictEqual(clipboard.text, 'foo');
// change text
document.querySelector('code').textContent = 'bar';
// and click
button.click();
assert.strictEqual(clipboard.text, 'bar');
// change text
document.querySelector('code').textContent = 'baz';
Prism.highlightAll();
// and click
button.click();
assert.strictEqual(clipboard.text, 'baz');
});
});
