playwright/tests/playwright-test/test-use.spec.ts
Dmitry Gozman d9f849fb14
feat(test runner): replace declare/define with "options" (#10293)
1. Fixtures defined in test.extend() can now have `{ option: true }` configuration that makes them overridable in the config. Options support all other properties of fixtures - value/function, scope, auto.
```
const test = base.extend<MyOptions>({
  foo: ['default', { option: true }],
});
```

2. test.declare() and project.define are removed.

3. project.use applies overrides to default option values and nothing else. Any test.extend() and test.use() calls take priority over config options.

Required user changes: if someone used to define fixture options with test.extend(), overriding them in config will stop working. The solution is to add `{ option: true }`.

```
// Old code
export const test = base.extend<{ myOption: number, myFixture: number }>({
  myOption: 123,
  myFixture: ({ myOption }, use) => use(2 * myOption),
});

// New code
export const test = base.extend<{ myOption: number, myFixture: number }>({
  myOption: [123, { option: true }],
  myFixture: ({ myOption }, use) => use(2 * myOption),
});
```
2021-11-18 15:45:52 -08:00

182 lines
5.0 KiB
TypeScript

/**
* Copyright (c) Microsoft Corporation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { test, expect } from './playwright-test-fixtures';
test('should merge options', async ({ runInlineTest }) => {
const result = await runInlineTest({
'a.test.ts': `
const test = pwt.test.extend({
foo: 'foo',
bar: 'bar',
});
test.use({ foo: 'foo2' });
test.use({ bar: 'bar2' });
test('test', ({ foo, bar }) => {
expect(foo).toBe('foo2');
expect(bar).toBe('bar2');
});
`
});
expect(result.exitCode).toBe(0);
expect(result.passed).toBe(1);
});
test('should run tests with different test options in the same worker', async ({ runInlineTest }) => {
const result = await runInlineTest({
'helper.ts': `
export const test = pwt.test.extend({
foo: 'foo',
});
`,
'a.test.ts': `
import { test } from './helper';
test('test', ({ foo }, testInfo) => {
expect(foo).toBe('foo');
expect(testInfo.workerIndex).toBe(0);
});
test.describe('suite1', () => {
test.use({ foo: 'bar' });
test('test1', ({ foo }, testInfo) => {
expect(foo).toBe('bar');
expect(testInfo.workerIndex).toBe(0);
});
test.describe('suite2', () => {
test.use({ foo: 'baz' });
test('test2', ({ foo }, testInfo) => {
expect(foo).toBe('baz');
expect(testInfo.workerIndex).toBe(0);
});
});
});
`
}, { workers: 1 });
expect(result.exitCode).toBe(0);
expect(result.passed).toBe(3);
});
test('should throw when setting worker options in describe', async ({ runInlineTest }) => {
const result = await runInlineTest({
'a.test.ts': `
const test = pwt.test.extend({
foo: [undefined, { scope: 'worker' }],
});
test.describe('suite', () => {
test.use({ foo: 'bar' });
test('test', ({ foo }, testInfo) => {
});
});
`
}, { workers: 1 });
expect(result.exitCode).toBe(1);
expect(result.output).toContain([
`Cannot use({ foo }) in a describe group, because it forces a new worker.`,
`Make it top-level in the test file or put in the configuration file.`,
` "foo" defined at a.test.ts:9:14`,
].join('\n'));
});
test('should run tests with different worker options', async ({ runInlineTest }) => {
const result = await runInlineTest({
'helper.ts': `
export const test = pwt.test.extend({
foo: [undefined, { scope: 'worker' }],
});
`,
'a.test.ts': `
import { test } from './helper';
test('test', ({ foo }, testInfo) => {
expect(foo).toBe(undefined);
expect(testInfo.workerIndex).toBe(0);
});
`,
'b.test.ts': `
import { test } from './helper';
test.use({ foo: 'bar' });
test('test1', ({ foo }, testInfo) => {
expect(foo).toBe('bar');
expect(testInfo.workerIndex).toBe(1);
});
test('test2', ({ foo }, testInfo) => {
expect(foo).toBe('bar');
expect(testInfo.workerIndex).toBe(1);
});
`,
'c.test.ts': `
import { test } from './helper';
test.use({ foo: 'baz' });
test('test2', ({ foo }, testInfo) => {
expect(foo).toBe('baz');
expect(testInfo.workerIndex).toBe(2);
});
`
}, { workers: 1 });
expect(result.exitCode).toBe(0);
expect(result.passed).toBe(4);
});
test('should use options from the config', async ({ runInlineTest }) => {
const result = await runInlineTest({
'helper.ts': `
export const test = pwt.test.extend({
foo: [ 'foo', { option: true } ],
});
`,
'playwright.config.ts': `
module.exports = { use: { foo: 'bar' } };
`,
'a.test.ts': `
import { test } from './helper';
test('test1', ({ foo }) => {
expect(foo).toBe('bar');
});
test.describe('suite1', () => {
test.use({ foo: 'baz' });
test('test2', ({ foo }) => {
expect(foo).toBe('baz');
});
});
`
});
expect(result.exitCode).toBe(0);
expect(result.passed).toBe(2);
});
test('test.use() should throw if called from beforeAll ', async ({ runInlineTest }) => {
const result = await runInlineTest({
'a.test.ts': `
const test = pwt.test;
test.beforeAll(() => {
test.use({});
});
test('should work', async () => {
});
`,
});
expect(result.exitCode).toBe(1);
expect(result.output).toContain('test.use() can only be called in a test file and can only be nested in test.describe()');
});