/
coverageProviderV8.test.ts
112 lines (89 loc) · 3.18 KB
/
coverageProviderV8.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 * as path from 'path';
import {onNodeVersions} from '@jest/test-utils';
import runJest from '../runJest';
const DIR = path.resolve(__dirname, '../coverage-provider-v8');
test('prints coverage with missing sourcemaps', () => {
const sourcemapDir = path.join(DIR, 'no-sourcemap');
const {stdout, exitCode} = runJest(
sourcemapDir,
['--coverage', '--coverage-provider', 'v8'],
{stripAnsi: true},
);
expect(exitCode).toBe(0);
expect(stdout).toMatchSnapshot();
});
test('prints coverage with empty sourcemaps', () => {
const sourcemapDir = path.join(DIR, 'empty-sourcemap');
const {stdout, exitCode} = runJest(
sourcemapDir,
['--coverage', '--coverage-provider', 'v8'],
{stripAnsi: true},
);
expect(exitCode).toBe(0);
expect(stdout).toMatchSnapshot();
});
test('reports coverage with `resetModules`', () => {
const sourcemapDir = path.join(DIR, 'with-resetModules');
const {stdout, exitCode} = runJest(
sourcemapDir,
['--coverage', '--coverage-provider', 'v8'],
{stripAnsi: true},
);
expect(exitCode).toBe(0);
expect(stdout).toMatchSnapshot();
});
test('prints correct coverage report, if a CJS module is put under test without transformation', () => {
const sourcemapDir = path.join(DIR, 'cjs-native-without-sourcemap');
const {stdout, exitCode} = runJest(
sourcemapDir,
['--coverage', '--coverage-provider', 'v8', '--no-cache'],
{stripAnsi: true},
);
expect(exitCode).toBe(0);
expect(stdout).toMatchSnapshot();
});
test('prints correct coverage report, if a TS module is transpiled by Babel to CJS and put under test', () => {
const sourcemapDir = path.join(DIR, 'cjs-with-babel-transformer');
const {stdout, exitCode} = runJest(
sourcemapDir,
['--coverage', '--coverage-provider', 'v8', '--no-cache'],
{stripAnsi: true},
);
expect(exitCode).toBe(0);
expect(stdout).toMatchSnapshot();
});
// The versions where vm.Module exists and commonjs with "exports" is not broken
onNodeVersions('>=12.16.0', () => {
test('prints correct coverage report, if an ESM module is put under test without transformation', () => {
const sourcemapDir = path.join(DIR, 'esm-native-without-sourcemap');
const {stdout, exitCode} = runJest(
sourcemapDir,
['--coverage', '--coverage-provider', 'v8', '--no-cache'],
{
nodeOptions: '--experimental-vm-modules --no-warnings',
stripAnsi: true,
},
);
expect(exitCode).toBe(0);
expect(stdout).toMatchSnapshot();
});
test('prints correct coverage report, if a TS module is transpiled by custom transformer to ESM put under test', () => {
const sourcemapDir = path.join(DIR, 'esm-with-custom-transformer');
const {stdout, exitCode} = runJest(
sourcemapDir,
['--coverage', '--coverage-provider', 'v8', '--no-cache'],
{
nodeOptions: '--experimental-vm-modules --no-warnings',
stripAnsi: true,
},
);
expect(exitCode).toBe(0);
expect(stdout).toMatchSnapshot();
});
});