fix(page.evaluate): better function serialization (#3480)

References #1665
This commit is contained in:
Andrey Lushnikov
2018-11-01 16:43:21 -07:00
committed by GitHub
parent e0610079b6
commit 3596c5f7e2
2 changed files with 37 additions and 7 deletions

View File

@@ -23,6 +23,13 @@ const DeviceDescriptors = utils.requireRoot('DeviceDescriptors');
const iPhone = DeviceDescriptors['iPhone 6'];
const iPhoneLandscape = DeviceDescriptors['iPhone 6 landscape'];
let asyncawait = true;
try {
new Function('async function foo() {await 1}');
} catch (e) {
asyncawait = false;
}
module.exports.addTests = function({testRunner, expect, headless}) {
const {describe, xdescribe, fdescribe} = testRunner;
const {it, fit, xit} = testRunner;
@@ -65,12 +72,6 @@ module.exports.addTests = function({testRunner, expect, headless}) {
});
});
let asyncawait = true;
try {
new Function('async function foo() {await 1}');
} catch (e) {
asyncawait = false;
}
(asyncawait ? describe : xdescribe)('Async stacks', () => {
it('should work', async({page, server}) => {
server.setRoute('/empty.html', (req, res) => {
@@ -176,6 +177,17 @@ module.exports.addTests = function({testRunner, expect, headless}) {
const result = await page.evaluate(() => 7 * 3);
expect(result).toBe(21);
});
(asyncawait ? it : xit)('should work with function shorthands', async({page, server}) => {
// trick node6 transpiler to not touch our object.
// TODO(lushnikov): remove eval once Node6 is dropped.
const a = eval(`({
sum(a, b) { return a + b; },
async mult(a, b) { return a * b; }
})`);
expect(await page.evaluate(a.sum, 1, 2)).toBe(3);
expect(await page.evaluate(a.mult, 2, 4)).toBe(8);
});
it('should throw when evaluation triggers reload', async({page, server}) => {
let error = null;
await page.evaluate(() => {