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jestChangedFiles.test.ts
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jestChangedFiles.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 {wrap} from 'jest-snapshot-serializer-raw';
import {findRepos, getChangedFilesForRoots} from 'jest-changed-files';
import slash from 'slash';
import {cleanup, run, testIfHg, writeFiles} from '../Utils';
import runJest from '../runJest';
const DIR = path.resolve(tmpdir(), 'jest-changed-files-test-dir');
const GIT = 'git -c user.name=jest_test -c user.email=jest_test@test.com';
const HG = 'hg --config ui.username=jest_test';
beforeEach(() => cleanup(DIR));
afterEach(() => cleanup(DIR));
testIfHg('gets hg SCM roots and dedupes them', async () => {
writeFiles(DIR, {
'first-repo/file1.txt': 'file1',
'first-repo/nested-dir/file2.txt': 'file2',
'first-repo/nested-dir/second-nested-dir/file3.txt': 'file3',
'second-repo/file1.txt': 'file1',
'second-repo/nested-dir/file2.txt': 'file2',
'second-repo/nested-dir/second-nested-dir/file3.txt': 'file3',
});
run(`${HG} init`, path.resolve(DIR, 'first-repo'));
run(`${HG} init`, path.resolve(DIR, 'second-repo'));
const roots = [
'',
'first-repo/nested-dir',
'first-repo/nested-dir/second-nested-dir',
'second-repo/nested-dir',
'second-repo/nested-dir/second-nested-dir',
].map(filename => path.resolve(DIR, filename));
const repos = await findRepos(roots);
expect(repos.git.size).toBe(0);
const hgRepos = Array.from(repos.hg);
// it's not possible to match the exact path because it will resolve
// differently on different platforms.
// NOTE: This test can break if you have a .hg repo initialized inside your
// os tmp directory.
expect(hgRepos).toHaveLength(2);
expect(slash(hgRepos[0])).toMatch(
/\/jest-changed-files-test-dir\/first-repo\/?$/,
);
expect(slash(hgRepos[1])).toMatch(
/\/jest-changed-files-test-dir\/second-repo\/?$/,
);
});
test('gets git SCM roots and dedupes them', async () => {
writeFiles(DIR, {
'first-repo/file1.txt': 'file1',
'first-repo/nested-dir/file2.txt': 'file2',
'first-repo/nested-dir/second-nested-dir/file3.txt': 'file3',
'second-repo/file1.txt': 'file1',
'second-repo/nested-dir/file2.txt': 'file2',
'second-repo/nested-dir/second-nested-dir/file3.txt': 'file3',
});
run(`${GIT} init`, path.resolve(DIR, 'first-repo'));
run(`${GIT} init`, path.resolve(DIR, 'second-repo'));
const roots = [
'',
'first-repo/nested-dir',
'first-repo/nested-dir/second-nested-dir',
'second-repo/nested-dir',
'second-repo/nested-dir/second-nested-dir',
].map(filename => path.resolve(DIR, filename));
const repos = await findRepos(roots);
expect(repos.hg.size).toBe(0);
const gitRepos = Array.from(repos.git);
// it's not possible to match the exact path because it will resolve
// differently on different platforms.
// NOTE: This test can break if you have a .git repo initialized inside your
// os tmp directory.
expect(gitRepos).toHaveLength(2);
expect(slash(gitRepos[0])).toMatch(
/\/jest-changed-files-test-dir\/first-repo\/?$/,
);
expect(slash(gitRepos[1])).toMatch(
/\/jest-changed-files-test-dir\/second-repo\/?$/,
);
});
testIfHg('gets mixed git and hg SCM roots and dedupes them', async () => {
writeFiles(DIR, {
'first-repo/file1.txt': 'file1',
'first-repo/nested-dir/file2.txt': 'file2',
'first-repo/nested-dir/second-nested-dir/file3.txt': 'file3',
'second-repo/file1.txt': 'file1',
'second-repo/nested-dir/file2.txt': 'file2',
'second-repo/nested-dir/second-nested-dir/file3.txt': 'file3',
});
run(`${GIT} init`, path.resolve(DIR, 'first-repo'));
run(`${HG} init`, path.resolve(DIR, 'second-repo'));
const roots = [
'',
'first-repo/nested-dir',
'first-repo/nested-dir/second-nested-dir',
'second-repo/nested-dir',
'second-repo/nested-dir/second-nested-dir',
].map(filename => path.resolve(DIR, filename));
const repos = await findRepos(roots);
const hgRepos = Array.from(repos.hg);
const gitRepos = Array.from(repos.git);
// NOTE: This test can break if you have a .git or .hg repo initialized
// inside your os tmp directory.
expect(gitRepos).toHaveLength(1);
expect(hgRepos).toHaveLength(1);
expect(slash(gitRepos[0])).toMatch(
/\/jest-changed-files-test-dir\/first-repo\/?$/,
);
expect(slash(hgRepos[0])).toMatch(
/\/jest-changed-files-test-dir\/second-repo\/?$/,
);
});
test('gets changed files for git', async () => {
writeFiles(DIR, {
'file1.txt': 'file1',
'nested-dir/file2.txt': 'file2',
'nested-dir/second-nested-dir/file3.txt': 'file3',
});
run(`${GIT} init`, DIR);
const roots = [
'',
'nested-dir',
'nested-dir/second-nested-dir',
].map(filename => path.resolve(DIR, filename));
let {changedFiles: files} = await getChangedFilesForRoots(roots, {});
expect(
Array.from(files)
.map(filePath => path.basename(filePath))
.sort(),
).toEqual(['file1.txt', 'file2.txt', 'file3.txt']);
run(`${GIT} add .`, DIR);
// Uses multiple `-m` to make the commit message have multiple
// paragraphs. This is done to ensure that `changedFiles` only
// returns files and not parts of commit messages.
run(`${GIT} commit --no-gpg-sign -m "test" -m "extra-line"`, DIR);
({changedFiles: files} = await getChangedFilesForRoots(roots, {}));
expect(Array.from(files)).toEqual([]);
({changedFiles: files} = await getChangedFilesForRoots(roots, {
lastCommit: true,
}));
expect(
Array.from(files)
.map(filePath => path.basename(filePath))
.sort(),
).toEqual(['file1.txt', 'file2.txt', 'file3.txt']);
writeFiles(DIR, {
'file1.txt': 'modified file1',
});
({changedFiles: files} = await getChangedFilesForRoots(roots, {}));
expect(
Array.from(files)
.map(filePath => path.basename(filePath))
.sort(),
).toEqual(['file1.txt']);
run(`${GIT} add -A`, DIR);
// staged files should be included
({changedFiles: files} = await getChangedFilesForRoots(roots, {}));
expect(
Array.from(files)
.map(filePath => path.basename(filePath))
.sort(),
).toEqual(['file1.txt']);
run(`${GIT} commit --no-gpg-sign -am "test2"`, DIR);
writeFiles(DIR, {
'file4.txt': 'file4',
});
({changedFiles: files} = await getChangedFilesForRoots(roots, {
withAncestor: true,
}));
// Returns files from current uncommitted state + the last commit
expect(
Array.from(files)
.map(filePath => path.basename(filePath))
.sort(),
).toEqual(['file1.txt', 'file4.txt']);
run(`${GIT} add file4.txt`, DIR);
run(`${GIT} commit --no-gpg-sign -m "test3"`, DIR);
({changedFiles: files} = await getChangedFilesForRoots(roots, {
changedSince: 'HEAD^^',
}));
// Returns files from the last 2 commits
expect(
Array.from(files)
.map(filePath => path.basename(filePath))
.sort(),
).toEqual(['file1.txt', 'file4.txt']);
run(`${GIT} checkout HEAD^^ -b feature-branch`, DIR);
writeFiles(DIR, {
'file5.txt': 'file5',
});
run(`${GIT} add file5.txt`, DIR);
run(`${GIT} commit --no-gpg-sign -m "test5"`, DIR);
({changedFiles: files} = await getChangedFilesForRoots(roots, {
changedSince: 'master',
}));
// Returns files from this branch but not ones that only exist on master
expect(
Array.from(files)
.map(filePath => path.basename(filePath))
.sort(),
).toEqual(['file5.txt']);
});
test('monitors only root paths for git', async () => {
writeFiles(DIR, {
'file1.txt': 'file1',
'nested-dir/file2.txt': 'file2',
'nested-dir/second-nested-dir/file3.txt': 'file3',
});
run(`${GIT} init`, DIR);
const roots = [path.resolve(DIR, 'nested-dir')];
const {changedFiles: files} = await getChangedFilesForRoots(roots, {});
expect(
Array.from(files)
.map(filePath => path.basename(filePath))
.sort(),
).toEqual(['file2.txt', 'file3.txt']);
});
it('does not find changes in files with no diff, for git', async () => {
const roots = [path.resolve(DIR)];
// create an empty file, commit it to "master"
writeFiles(DIR, {
'file1.txt': '',
});
run(`${GIT} init`, DIR);
run(`${GIT} add file1.txt`, DIR);
run(`${GIT} commit --no-gpg-sign -m "initial"`, DIR);
// check out a new branch, jestChangedFilesSpecBase, to use later in diff
run(`${GIT} checkout -b jestChangedFilesSpecBase`, DIR);
// check out second branch, jestChangedFilesSpecMod, modify file & commit
run(`${GIT} checkout -b jestChangedFilesSpecMod`, DIR);
writeFiles(DIR, {
'file1.txt': 'modified file1',
});
run(`${GIT} add file1.txt`, DIR);
run(`${GIT} commit --no-gpg-sign -m "modified"`, DIR);
// still on jestChangedFilesSpecMod branch, "revert" back to empty file and commit
writeFiles(DIR, {
'file1.txt': '',
});
run(`${GIT} add file1.txt`, DIR);
run(`${GIT} commit --no-gpg-sign -m "removemod"`, DIR);
// check that passing in no changedSince arg doesn't return any unstaged / other changes
const {changedFiles: files} = await getChangedFilesForRoots(roots, {});
expect(Array.from(files)).toEqual([]);
// check that in diff from `jestChangedFilesSpecBase` branch, no changed files are reported
const {changedFiles: filesExplicitBaseBranch} = await getChangedFilesForRoots(
roots,
{
changedSince: 'jestChangedFilesSpecBase',
},
);
expect(Array.from(filesExplicitBaseBranch)).toEqual([]);
});
test('handles a bad revision for "changedSince", for git', async () => {
writeFiles(DIR, {
'.watchmanconfig': '',
'__tests__/file1.test.js': `require('../file1'); test('file1', () => {});`,
'file1.js': 'module.exports = {}',
'package.json': '{}',
});
run(`${GIT} init`, DIR);
run(`${GIT} add .`, DIR);
run(`${GIT} commit --no-gpg-sign -m "first"`, DIR);
const {exitCode, stderr} = runJest(DIR, ['--changedSince=^blablabla']);
expect(exitCode).toBe(1);
expect(wrap(stderr)).toMatchSnapshot();
});
testIfHg('gets changed files for hg', async () => {
if (process.env.CI) {
// Circle and Travis have very old version of hg (v2, and current
// version is v4.2) and its API changed since then and not compatible
// any more. Changing the SCM version on CIs is not trivial, so we'll just
// skip this test and run it only locally.
return;
}
// file1.txt is used to make a multi-line commit message
// with `hg commit -l file1.txt`.
// This is done to ensure that `changedFiles` only returns files
// and not parts of commit messages.
writeFiles(DIR, {
'file1.txt': 'file1\n\nextra-line',
'nested-dir/file2.txt': 'file2',
'nested-dir/second-nested-dir/file3.txt': 'file3',
});
run(`${HG} init`, DIR);
const roots = [
'',
'nested-dir',
'nested-dir/second-nested-dir',
].map(filename => path.resolve(DIR, filename));
let {changedFiles: files} = await getChangedFilesForRoots(roots, {});
expect(
Array.from(files)
.map(filePath => path.basename(filePath))
.sort(),
).toEqual(['file1.txt', 'file2.txt', 'file3.txt']);
run(`${HG} add .`, DIR);
run(`${HG} commit -l file1.txt`, DIR);
({changedFiles: files} = await getChangedFilesForRoots(roots, {}));
expect(Array.from(files)).toEqual([]);
({changedFiles: files} = await getChangedFilesForRoots(roots, {
lastCommit: true,
}));
expect(
Array.from(files)
.map(filePath => path.basename(filePath))
.sort(),
).toEqual(['file1.txt', 'file2.txt', 'file3.txt']);
writeFiles(DIR, {
'file1.txt': 'modified file1',
});
({changedFiles: files} = await getChangedFilesForRoots(roots, {}));
expect(
Array.from(files)
.map(filePath => path.basename(filePath))
.sort(),
).toEqual(['file1.txt']);
run(`${HG} commit -m "test2"`, DIR);
writeFiles(DIR, {
'file4.txt': 'file4',
});
({changedFiles: files} = await getChangedFilesForRoots(roots, {
withAncestor: true,
}));
// Returns files from current uncommitted state + the last commit
expect(
Array.from(files)
.map(filePath => path.basename(filePath))
.sort(),
).toEqual(['file1.txt', 'file4.txt']);
run(`${HG} add file4.txt`, DIR);
run(`${HG} commit -m "test3"`, DIR);
({changedFiles: files} = await getChangedFilesForRoots(roots, {
changedSince: '-3',
}));
// Returns files from the last 2 commits
expect(
Array.from(files)
.map(filePath => path.basename(filePath))
.sort(),
).toEqual(['file1.txt', 'file4.txt']);
run(`${HG} bookmark main`, DIR);
// Back up and develop on a different branch
run(`${HG} checkout --rev=-2`, DIR);
writeFiles(DIR, {
'file5.txt': 'file5',
});
run(`${HG} add file5.txt`, DIR);
run(`${HG} commit -m "test4"`, DIR);
({changedFiles: files} = await getChangedFilesForRoots(roots, {
changedSince: 'main',
}));
// Returns files from this branch but not ones that only exist on main
expect(
Array.from(files)
.map(filePath => path.basename(filePath))
.sort(),
).toEqual(['file5.txt']);
});
testIfHg('monitors only root paths for hg', async () => {
if (process.env.CI) {
// Circle and Travis have very old version of hg (v2, and current
// version is v4.2) and its API changed since then and not compatible
// any more. Changing the SCM version on CIs is not trivial, so we'll just
// skip this test and run it only locally.
return;
}
writeFiles(DIR, {
'file1.txt': 'file1',
'nested-dir/file2.txt': 'file2',
'nested-dir/second-nested-dir/file3.txt': 'file3',
});
run(`${HG} init`, DIR);
const roots = [path.resolve(DIR, 'nested-dir')];
const {changedFiles: files} = await getChangedFilesForRoots(roots, {});
expect(
Array.from(files)
.map(filePath => path.basename(filePath))
.sort(),
).toEqual(['file2.txt', 'file3.txt']);
});
testIfHg('handles a bad revision for "changedSince", for hg', async () => {
writeFiles(DIR, {
'.watchmanconfig': '',
'__tests__/file1.test.js': `require('../file1'); test('file1', () => {});`,
'file1.js': 'module.exports = {}',
'package.json': '{}',
});
run(`${HG} init`, DIR);
run(`${HG} add .`, DIR);
run(`${HG} commit -m "first"`, DIR);
const {exitCode, stderr} = runJest(DIR, ['--changedSince=blablabla']);
expect(exitCode).toBe(1);
expect(wrap(stderr)).toMatchSnapshot();
});