script.test.ts•4.55 kB
/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import {describe, it} from 'node:test';
import assert from 'assert';
import {evaluateScript} from '../../src/tools/script.js';
import {html, withBrowser} from '../utils.js';
describe('script', () => {
describe('browser_evaluate_script', () => {
it('evaluates', async () => {
await withBrowser(async (response, context) => {
await evaluateScript.handler(
{params: {function: String(() => 2 * 5)}},
response,
context,
);
const lineEvaluation = response.responseLines.at(2)!;
assert.strictEqual(JSON.parse(lineEvaluation), 10);
});
});
it('runs in selected page', async () => {
await withBrowser(async (response, context) => {
await evaluateScript.handler(
{params: {function: String(() => document.title)}},
response,
context,
);
let lineEvaluation = response.responseLines.at(2)!;
assert.strictEqual(JSON.parse(lineEvaluation), '');
const page = await context.newPage();
await page.setContent(`
<head>
<title>New Page</title>
</head>
`);
response.resetResponseLineForTesting();
await evaluateScript.handler(
{params: {function: String(() => document.title)}},
response,
context,
);
lineEvaluation = response.responseLines.at(2)!;
assert.strictEqual(JSON.parse(lineEvaluation), 'New Page');
});
});
it('work for complex objects', async () => {
await withBrowser(async (response, context) => {
const page = context.getSelectedPage();
await page.setContent(html`<script src="./scripts.js"></script> `);
await evaluateScript.handler(
{
params: {
function: String(() => {
const scripts = Array.from(
document.head.querySelectorAll('script'),
).map(s => ({src: s.src, async: s.async, defer: s.defer}));
return {scripts};
}),
},
},
response,
context,
);
const lineEvaluation = response.responseLines.at(2)!;
assert.deepEqual(JSON.parse(lineEvaluation), {
scripts: [],
});
});
});
it('work for async functions', async () => {
await withBrowser(async (response, context) => {
const page = context.getSelectedPage();
await page.setContent(html`<script src="./scripts.js"></script> `);
await evaluateScript.handler(
{
params: {
function: String(async () => {
await new Promise(res => setTimeout(res, 0));
return 'Works';
}),
},
},
response,
context,
);
const lineEvaluation = response.responseLines.at(2)!;
assert.strictEqual(JSON.parse(lineEvaluation), 'Works');
});
});
it('work with one argument', async () => {
await withBrowser(async (response, context) => {
const page = context.getSelectedPage();
await page.setContent(html`<button id="test">test</button>`);
await context.createTextSnapshot();
await evaluateScript.handler(
{
params: {
function: String(async (el: Element) => {
return el.id;
}),
args: [{uid: '1_1'}],
},
},
response,
context,
);
const lineEvaluation = response.responseLines.at(2)!;
assert.strictEqual(JSON.parse(lineEvaluation), 'test');
});
});
it('work with multiple args', async () => {
await withBrowser(async (response, context) => {
const page = context.getSelectedPage();
await page.setContent(html`<button id="test">test</button>`);
await context.createTextSnapshot();
await evaluateScript.handler(
{
params: {
function: String((container: Element, child: Element) => {
return container.contains(child);
}),
args: [{uid: '1_0'}, {uid: '1_1'}],
},
},
response,
context,
);
const lineEvaluation = response.responseLines.at(2)!;
assert.strictEqual(JSON.parse(lineEvaluation), true);
});
});
});
});