/
globalTeardown.test.ts
131 lines (104 loc) · 3.79 KB
/
globalTeardown.test.ts
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/**
* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
import {tmpdir} from 'os';
import * as path from 'path';
import * as fs from 'graceful-fs';
import {createDirectory} from 'jest-util';
import runJest, {json as runWithJson} from '../runJest';
import {cleanup, run} from '../Utils';
const DIR = path.join(tmpdir(), 'jest-global-teardown');
const project1DIR = path.join(tmpdir(), 'jest-global-teardown-project-1');
const project2DIR = path.join(tmpdir(), 'jest-global-teardown-project-2');
const e2eDir = path.resolve(__dirname, '../global-teardown');
beforeAll(() => {
run('yarn', e2eDir);
});
beforeEach(() => {
cleanup(DIR);
cleanup(project1DIR);
cleanup(project2DIR);
});
afterAll(() => {
cleanup(DIR);
cleanup(project1DIR);
cleanup(project2DIR);
});
test('globalTeardown is triggered once after all test suites', () => {
createDirectory(DIR);
const teardownPath = path.resolve(e2eDir, 'teardown.js');
const result = runWithJson('global-teardown', [
`--globalTeardown=${teardownPath}`,
`--testPathPattern=__tests__`,
]);
expect(result.exitCode).toBe(0);
const files = fs.readdirSync(DIR);
expect(files).toHaveLength(1);
const teardown = fs.readFileSync(path.join(DIR, files[0]), 'utf8');
expect(teardown).toBe('teardown');
});
test('jest throws an error when globalTeardown does not export a function', () => {
const teardownPath = path.resolve(e2eDir, 'invalidTeardown.js');
const {exitCode, stderr} = runJest(e2eDir, [
`--globalTeardown=${teardownPath}`,
`--testPathPattern=__tests__`,
]);
expect(exitCode).toBe(1);
expect(stderr).toMatch(
`TypeError: globalTeardown file must export a function at ${teardownPath}`,
);
});
test('globalTeardown function gets jest config object as a parameter', () => {
const teardownPath = path.resolve(e2eDir, 'teardownWithConfig.js');
const testPathPattern = 'pass';
const result = runJest(e2eDir, [
`--globalTeardown=${teardownPath}`,
`--testPathPattern=${testPathPattern}`,
]);
expect(result.stdout).toBe(testPathPattern);
});
test('should call globalTeardown function of multiple projects', () => {
const configPath = path.resolve(e2eDir, 'projects.jest.config.js');
const result = runWithJson('global-teardown', [`--config=${configPath}`]);
expect(result.exitCode).toBe(0);
expect(fs.existsSync(DIR)).toBe(true);
expect(fs.existsSync(project1DIR)).toBe(true);
expect(fs.existsSync(project2DIR)).toBe(true);
});
test('should not call a globalTeardown of a project if there are no tests to run from this project', () => {
const configPath = path.resolve(e2eDir, 'projects.jest.config.js');
const result = runWithJson('global-teardown', [
`--config=${configPath}`,
'--testPathPattern=project-1',
]);
expect(result.exitCode).toBe(0);
expect(fs.existsSync(DIR)).toBe(true);
expect(fs.existsSync(project1DIR)).toBe(true);
expect(fs.existsSync(project2DIR)).toBe(false);
});
test('globalTeardown works with default export', () => {
const teardownPath = path.resolve(e2eDir, 'teardownWithDefaultExport.js');
const testPathPattern = 'pass';
const result = runJest(e2eDir, [
`--globalTeardown=${teardownPath}`,
`--testPathPattern=${testPathPattern}`,
]);
expect(result.stdout).toBe(testPathPattern);
});
test('globalTeardown throws with named export', () => {
const teardownPath = path.resolve(
e2eDir,
'invalidTeardownWithNamedExport.js',
);
const {exitCode, stderr} = runJest(e2eDir, [
`--globalTeardown=${teardownPath}`,
`--testPathPattern=__tests__`,
]);
expect(exitCode).toBe(1);
expect(stderr).toMatch(
`TypeError: globalTeardown file must export a function at ${teardownPath}`,
);
});