mirror of
https://github.com/microsoft/playwright.git
synced 2024-12-14 05:37:20 +03:00
cfe92e1608
This patch implements `expect.poll()` method that polls given
predicate until a given synchronous predicate completes.
Usage:
```js
// wait until page gets 3 frames.
await expect.poll(() => page.frames().length, {
timeout: 1000,
message: 'custom error message',
}).toBe(3);
```
Fixes #10235
95 lines
3.3 KiB
TypeScript
95 lines
3.3 KiB
TypeScript
/**
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* Copyright Microsoft Corporation. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { test, expect, stripAnsi } from './playwright-test-fixtures';
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test('soft expects should compile', async ({ runTSC }) => {
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const result = await runTSC({
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'a.spec.ts': `
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const { test } = pwt;
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test('should work', () => {
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test.expect.soft(1+1).toBe(3);
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test.expect.soft(1+1, 'custom error message').toBe(3);
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test.expect.soft(1+1, { message: 'custom error message' }).toBe(3);
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});
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`
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});
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expect(result.exitCode).toBe(0);
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});
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test('soft expects should work', async ({ runInlineTest }) => {
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const result = await runInlineTest({
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'a.spec.ts': `
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const { test } = pwt;
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test('should work', () => {
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test.expect.soft(1+1).toBe(3);
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console.log('woof-woof');
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});
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`
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});
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expect(result.exitCode).toBe(1);
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expect(stripAnsi(result.output)).toContain('woof-woof');
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});
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test('should fail when passed in function', async ({ runInlineTest }) => {
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const result = await runInlineTest({
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'a.spec.ts': `
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const { test } = pwt;
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test('should work', () => {
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test.expect.soft(() => 1+1).toBe(2);
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});
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`
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});
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expect(result.exitCode).toBe(1);
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expect(stripAnsi(result.output)).toContain('Cannot accept function as a first argument; did you mean to use `expect.poll()`?');
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});
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test('should report a mixture of soft and non-soft errors', async ({ runInlineTest }) => {
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const result = await runInlineTest({
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'a.spec.ts': `
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const { test } = pwt;
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test('should work', ({}) => {
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test.expect.soft(1+1, 'one plus one').toBe(3);
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test.expect.soft(2*2, 'two times two').toBe(5);
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test.expect(3/3, 'three div three').toBe(7);
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test.expect.soft(6-4, { message: 'six minus four' }).toBe(3);
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});
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`
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});
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expect(result.exitCode).toBe(1);
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expect(stripAnsi(result.output)).toContain('Error: one plus one');
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expect(stripAnsi(result.output)).toContain('Error: two times two');
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expect(stripAnsi(result.output)).toContain('Error: three div three');
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expect(stripAnsi(result.output)).not.toContain('Error: six minus four');
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});
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test('testInfo should contain all soft expect errors', async ({ runInlineTest }) => {
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const result = await runInlineTest({
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'a.spec.ts': `
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const { test } = pwt;
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test('should work', ({}, testInfo) => {
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test.expect.soft(1+1, 'one plus one').toBe(3);
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test.expect.soft(2*2, 'two times two').toBe(5);
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test.expect(testInfo.errors.length, 'must be exactly two errors').toBe(2);
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});
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`
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});
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expect(result.exitCode).toBe(1);
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expect(stripAnsi(result.output)).toContain('Error: one plus one');
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expect(stripAnsi(result.output)).toContain('Error: two times two');
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expect(stripAnsi(result.output)).not.toContain('Error: must be exactly two errors');
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});
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