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test.js
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test.js
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/* eslint-env mocha */
'use strict';
const fs = require('fs');
const sysPath = require('path');
const {promisify} = require('util');
const childProcess = require('child_process');
const chai = require('chai');
const rimraf = require('rimraf');
const sinon = require('sinon');
const sinonChai = require('sinon-chai');
const upath = require('upath');
const {isWindows, isMacos, isIBMi, EV_ALL, EV_READY, EV_ADD, EV_CHANGE, EV_ADD_DIR, EV_UNLINK, EV_UNLINK_DIR, EV_RAW, EV_ERROR}
= require('./lib/constants');
const chokidar = require('.');
const {expect} = chai;
chai.use(sinonChai);
chai.should();
const exec = promisify(childProcess.exec);
const write = promisify(fs.writeFile);
const fs_symlink = promisify(fs.symlink);
const fs_rename = promisify(fs.rename);
const fs_mkdir = promisify(fs.mkdir);
const fs_rmdir = promisify(fs.rmdir);
const fs_unlink = promisify(fs.unlink);
const pRimraf = promisify(rimraf);
const FIXTURES_PATH_REL = 'test-fixtures';
const FIXTURES_PATH = sysPath.join(__dirname, FIXTURES_PATH_REL);
const allWatchers = [];
const PERM_ARR = 0o755; // rwe, r+e, r+e
let subdirId = 0;
let options;
let currentDir;
let slowerDelay;
// spyOnReady
const aspy = (watcher, eventName, spy = null, noStat = false) => {
if (typeof eventName !== 'string') {
throw new TypeError('aspy: eventName must be a String');
}
if (spy == null) spy = sinon.spy();
return new Promise((resolve, reject) => {
const handler = noStat ?
(eventName === EV_ALL ?
(event, path) => spy(event, path) :
(path) => spy(path)) :
spy;
watcher.on(EV_ERROR, reject);
watcher.on(EV_READY, () => resolve(spy));
watcher.on(eventName, handler);
});
};
const waitForWatcher = (watcher) => {
return new Promise((resolve, reject) => {
watcher.on(EV_ERROR, reject);
watcher.on(EV_READY, resolve);
});
};
const delay = async (time) => {
return new Promise((resolve) => {
const timer = time || slowerDelay || 20;
setTimeout(resolve, timer);
});
};
const getFixturePath = (subPath) => {
const subd = subdirId && subdirId.toString() || '';
return sysPath.join(FIXTURES_PATH, subd, subPath);
};
const getGlobPath = (subPath) => {
const subd = subdirId && subdirId.toString() || '';
return upath.join(FIXTURES_PATH, subd, subPath);
};
currentDir = getFixturePath('');
const chokidar_watch = (path = currentDir, opts = options) => {
const wt = chokidar.watch(path, opts);
allWatchers.push(wt);
return wt;
};
const waitFor = async (spies) => {
if (spies.length === 0) throw new TypeError('SPies zero');
return new Promise((resolve) => {
const isSpyReady = (spy) => {
if (Array.isArray(spy)) {
return spy[0].callCount >= spy[1];
}
return spy.callCount >= 1;
};
let intrvl, timeo;
function finish() {
clearInterval(intrvl);
clearTimeout(timeo);
resolve();
}
intrvl = setInterval(() => {
process.nextTick(() => {
if (spies.every(isSpyReady)) finish();
});
}, 20);
timeo = setTimeout(finish, 5000);
});
};
const dateNow = () => Date.now().toString();
const runTests = (baseopts) => {
let macosFswatch;
let win32Polling;
baseopts.persistent = true;
before(() => {
// flags for bypassing special-case test failures on CI
macosFswatch = isMacos && !baseopts.usePolling && !baseopts.useFsEvents;
win32Polling = isWindows && baseopts.usePolling;
slowerDelay = macosFswatch ? 100 : undefined;
});
beforeEach(function clean() {
options = {};
Object.keys(baseopts).forEach((key) => {
options[key] = baseopts[key];
});
});
describe('watch a directory', () => {
let readySpy, rawSpy, watcher, watcher2;
beforeEach(() => {
options.ignoreInitial = true;
options.alwaysStat = true;
readySpy = sinon.spy(function readySpy(){});
rawSpy = sinon.spy(function rawSpy(){});
watcher = chokidar_watch().on(EV_READY, readySpy).on(EV_RAW, rawSpy);
});
afterEach(async () => {
await waitFor([readySpy]);
readySpy.should.have.been.calledOnce;
readySpy = undefined;
rawSpy = undefined;
});
it('should produce an instance of chokidar.FSWatcher', () => {
watcher.should.be.an.instanceof(chokidar.FSWatcher);
});
it('should expose public API methods', () => {
watcher.on.should.be.a('function');
watcher.emit.should.be.a('function');
watcher.add.should.be.a('function');
watcher.close.should.be.a('function');
watcher.getWatched.should.be.a('function');
});
it('should emit `add` event when file was added', async () => {
const testPath = getFixturePath('add.txt');
const spy = await aspy(watcher, EV_ADD);
await delay();
await write(testPath, dateNow());
await waitFor([spy]);
spy.should.have.been.calledOnce;
spy.should.have.been.calledWith(testPath);
expect(spy.args[0][1]).to.be.ok; // stats
rawSpy.should.have.been.called;
});
it('should emit nine `add` events when nine files were added in one directory', async () => {
const paths = [];
for (let i = 1; i <= 9; i++) {
paths.push(getFixturePath(`add${i}.txt`));
}
const spy = sinon.spy();
watcher.on(EV_ADD, (path) => {
spy(path);
});
await waitForWatcher(watcher);
write(paths[0], dateNow());
write(paths[1], dateNow());
write(paths[2], dateNow());
write(paths[3], dateNow());
write(paths[4], dateNow());
await delay(100);
write(paths[5], dateNow());
write(paths[6], dateNow());
await delay(150);
write(paths[7], dateNow());
write(paths[8], dateNow());
await waitFor([[spy, 4]]);
await delay(1000);
await waitFor([[spy, 9]]);
paths.forEach(path => {
spy.should.have.been.calledWith(path);
});
});
it('should emit thirtythree `add` events when thirtythree files were added in nine directories', async () => {
await watcher.close();
const test1Path = getFixturePath('add1.txt');
const testb1Path = getFixturePath('b/add1.txt');
const testc1Path = getFixturePath('c/add1.txt');
const testd1Path = getFixturePath('d/add1.txt');
const teste1Path = getFixturePath('e/add1.txt');
const testf1Path = getFixturePath('f/add1.txt');
const testg1Path = getFixturePath('g/add1.txt');
const testh1Path = getFixturePath('h/add1.txt');
const testi1Path = getFixturePath('i/add1.txt');
const test2Path = getFixturePath('add2.txt');
const testb2Path = getFixturePath('b/add2.txt');
const testc2Path = getFixturePath('c/add2.txt');
const test3Path = getFixturePath('add3.txt');
const testb3Path = getFixturePath('b/add3.txt');
const testc3Path = getFixturePath('c/add3.txt');
const test4Path = getFixturePath('add4.txt');
const testb4Path = getFixturePath('b/add4.txt');
const testc4Path = getFixturePath('c/add4.txt');
const test5Path = getFixturePath('add5.txt');
const testb5Path = getFixturePath('b/add5.txt');
const testc5Path = getFixturePath('c/add5.txt');
const test6Path = getFixturePath('add6.txt');
const testb6Path = getFixturePath('b/add6.txt');
const testc6Path = getFixturePath('c/add6.txt');
const test7Path = getFixturePath('add7.txt');
const testb7Path = getFixturePath('b/add7.txt');
const testc7Path = getFixturePath('c/add7.txt');
const test8Path = getFixturePath('add8.txt');
const testb8Path = getFixturePath('b/add8.txt');
const testc8Path = getFixturePath('c/add8.txt');
const test9Path = getFixturePath('add9.txt');
const testb9Path = getFixturePath('b/add9.txt');
const testc9Path = getFixturePath('c/add9.txt');
fs.mkdirSync(getFixturePath('b'), PERM_ARR);
fs.mkdirSync(getFixturePath('c'), PERM_ARR);
fs.mkdirSync(getFixturePath('d'), PERM_ARR);
fs.mkdirSync(getFixturePath('e'), PERM_ARR);
fs.mkdirSync(getFixturePath('f'), PERM_ARR);
fs.mkdirSync(getFixturePath('g'), PERM_ARR);
fs.mkdirSync(getFixturePath('h'), PERM_ARR);
fs.mkdirSync(getFixturePath('i'), PERM_ARR);
watcher2 = chokidar_watch().on(EV_READY, readySpy).on(EV_RAW, rawSpy);
const spy = await aspy(watcher2, EV_ADD, null, true);
await write(test1Path, dateNow());
await write(test2Path, dateNow());
await write(test3Path, dateNow());
await write(test4Path, dateNow());
await write(test5Path, dateNow());
await delay(200);
await write(test6Path, dateNow());
await write(test7Path, dateNow());
await write(test8Path, dateNow());
await write(test9Path, dateNow());
await delay(200);
await write(testb1Path, dateNow());
await write(testb2Path, dateNow());
await write(testb3Path, dateNow());
await write(testb4Path, dateNow());
await write(testb5Path, dateNow());
await delay(200);
await write(testb6Path, dateNow());
await write(testb7Path, dateNow());
await write(testb8Path, dateNow());
await write(testb9Path, dateNow());
await delay(200);
await write(testc1Path, dateNow());
await write(testc2Path, dateNow());
await write(testc3Path, dateNow());
await write(testc4Path, dateNow());
await write(testc5Path, dateNow());
await delay(150);
await write(testc6Path, dateNow());
await write(testc7Path, dateNow());
await write(testc8Path, dateNow());
await write(testc9Path, dateNow());
await write(testd1Path, dateNow());
await write(teste1Path, dateNow());
await write(testf1Path, dateNow());
await delay(100);
await write(testg1Path, dateNow());
await write(testh1Path, dateNow());
await write(testi1Path, dateNow());
await delay(300);
await waitFor([[spy, 11]]);
await waitFor([[spy, 22]]);
await delay(1000);
await waitFor([[spy, 33]]);
spy.should.have.been.calledWith(test1Path);
spy.should.have.been.calledWith(test2Path);
spy.should.have.been.calledWith(test3Path);
spy.should.have.been.calledWith(test4Path);
spy.should.have.been.calledWith(test5Path);
spy.should.have.been.calledWith(test6Path);
await delay(100);
spy.should.have.been.calledWith(test7Path);
spy.should.have.been.calledWith(test8Path);
spy.should.have.been.calledWith(test9Path);
spy.should.have.been.calledWith(testb1Path);
spy.should.have.been.calledWith(testb2Path);
spy.should.have.been.calledWith(testb3Path);
spy.should.have.been.calledWith(testb4Path);
spy.should.have.been.calledWith(testb5Path);
spy.should.have.been.calledWith(testb6Path);
await delay(100);
spy.should.have.been.calledWith(testb7Path);
spy.should.have.been.calledWith(testb8Path);
spy.should.have.been.calledWith(testb9Path);
spy.should.have.been.calledWith(testc1Path);
spy.should.have.been.calledWith(testc2Path);
spy.should.have.been.calledWith(testc3Path);
spy.should.have.been.calledWith(testc4Path);
await delay(100);
spy.should.have.been.calledWith(testc5Path);
spy.should.have.been.calledWith(testc6Path);
spy.should.have.been.calledWith(testc7Path);
spy.should.have.been.calledWith(testc8Path);
spy.should.have.been.calledWith(testc9Path);
await delay(100);
spy.should.have.been.calledWith(testd1Path);
spy.should.have.been.calledWith(teste1Path);
spy.should.have.been.calledWith(testf1Path);
spy.should.have.been.calledWith(testg1Path);
spy.should.have.been.calledWith(testh1Path);
spy.should.have.been.calledWith(testi1Path);
});
it('should emit `addDir` event when directory was added', async () => {
const testDir = getFixturePath('subdir');
const spy = await aspy(watcher, 'addDir');
spy.should.not.have.been.called;
await fs_mkdir(testDir, PERM_ARR);
await waitFor([spy]);
spy.should.have.been.calledOnce;
spy.should.have.been.calledWith(testDir);
expect(spy.args[0][1]).to.be.ok; // stats
rawSpy.should.have.been.called;
});
it('should emit `change` event when file was changed', async () => {
const testPath = getFixturePath('change.txt');
const spy = await aspy(watcher, EV_CHANGE);
spy.should.not.have.been.called;
await write(testPath, dateNow());
await waitFor([spy]);
spy.should.have.been.calledWith(testPath);
expect(spy.args[0][1]).to.be.ok; // stats
rawSpy.should.have.been.called;
spy.should.have.been.calledOnce;
});
it('should emit `unlink` event when file was removed', async () => {
const testPath = getFixturePath('unlink.txt');
const spy = await aspy(watcher, EV_UNLINK);
spy.should.not.have.been.called;
await fs_unlink(testPath);
await waitFor([spy]);
spy.should.have.been.calledWith(testPath);
expect(spy.args[0][1]).to.not.be.ok; // no stats
rawSpy.should.have.been.called;
spy.should.have.been.calledOnce;
});
it('should emit `unlinkDir` event when a directory was removed', async () => {
const testDir = getFixturePath('subdir');
fs.mkdirSync(testDir, PERM_ARR);
const spy = await aspy(watcher, EV_UNLINK_DIR);
await delay();
await fs_rmdir(testDir);
await waitFor([spy]);
spy.should.have.been.calledWith(testDir);
expect(spy.args[0][1]).to.not.be.ok; // no stats
rawSpy.should.have.been.called;
spy.should.have.been.calledOnce;
});
it('should emit two `unlinkDir` event when two nested directories were removed', async () => {
const testDir = getFixturePath('subdir');
const testDir2 = getFixturePath('subdir/subdir2');
const testDir3 = getFixturePath('subdir/subdir2/subdir3');
fs.mkdirSync(testDir, PERM_ARR);
fs.mkdirSync(testDir2, PERM_ARR);
fs.mkdirSync(testDir3, PERM_ARR);
const spy = await aspy(watcher, EV_UNLINK_DIR);
await waitFor([spy]);
await pRimraf(testDir2); // test removing in one
await waitFor([spy]);
spy.should.have.been.calledWith(testDir2);
spy.should.have.been.calledWith(testDir3);
expect(spy.args[0][1]).to.not.be.ok; // no stats
rawSpy.should.have.been.called;
spy.should.have.been.calledTwice;
});
it('should emit `unlink` and `add` events when a file is renamed', async () => {
const unlinkSpy = sinon.spy(function unlink(){});
const addSpy = sinon.spy(function add(){});
const testPath = getFixturePath('change.txt');
const newPath = getFixturePath('moved.txt');
watcher.on(EV_UNLINK, unlinkSpy).on(EV_ADD, addSpy);
await waitForWatcher(watcher);
unlinkSpy.should.not.have.been.called;
addSpy.should.not.have.been.called;
await delay();
await fs_rename(testPath, newPath);
await waitFor([unlinkSpy, addSpy]);
unlinkSpy.should.have.been.calledWith(testPath);
expect(unlinkSpy.args[0][1]).to.not.be.ok; // no stats
addSpy.should.have.been.calledOnce;
addSpy.should.have.been.calledWith(newPath);
expect(addSpy.args[0][1]).to.be.ok; // stats
rawSpy.should.have.been.called;
if (!macosFswatch) unlinkSpy.should.have.been.calledOnce;
});
it('should emit `add`, not `change`, when previously deleted file is re-added', async () => {
const unlinkSpy = sinon.spy(function unlink(){});
const addSpy = sinon.spy(function add(){});
const changeSpy = sinon.spy(function change(){});
const testPath = getFixturePath('add.txt');
fs.writeFileSync(testPath, 'hello');
watcher
.on(EV_UNLINK, unlinkSpy)
.on(EV_ADD, addSpy)
.on(EV_CHANGE, changeSpy);
await waitForWatcher(watcher);
unlinkSpy.should.not.have.been.called;
addSpy.should.not.have.been.called;
changeSpy.should.not.have.been.called;
await fs_unlink(testPath);
await waitFor([unlinkSpy.withArgs(testPath)]);
unlinkSpy.should.have.been.calledWith(testPath);
await delay();
await write(testPath, dateNow());
await waitFor([addSpy.withArgs(testPath)]);
addSpy.should.have.been.calledWith(testPath);
changeSpy.should.not.have.been.called;
});
it('should not emit `unlink` for previously moved files', async () => {
const unlinkSpy = sinon.spy(function unlink(){});
const testPath = getFixturePath('change.txt');
const newPath1 = getFixturePath('moved.txt');
const newPath2 = getFixturePath('moved-again.txt');
await aspy(watcher, EV_UNLINK, unlinkSpy);
await fs_rename(testPath, newPath1);
await delay(300);
await fs_rename(newPath1, newPath2);
await waitFor([unlinkSpy.withArgs(newPath1)]);
unlinkSpy.withArgs(testPath).should.have.been.calledOnce;
unlinkSpy.withArgs(newPath1).should.have.been.calledOnce;
unlinkSpy.withArgs(newPath2).should.not.have.been.called;
});
it('should survive ENOENT for missing subdirectories', async () => {
const testDir = getFixturePath('notadir');
await waitForWatcher(watcher);
watcher.add(testDir);
});
it('should notice when a file appears in a new directory', async () => {
const testDir = getFixturePath('subdir');
const testPath = getFixturePath('subdir/add.txt');
const spy = await aspy(watcher, EV_ADD);
spy.should.not.have.been.called;
await fs_mkdir(testDir, PERM_ARR);
await write(testPath, dateNow());
await waitFor([spy]);
spy.should.have.been.calledOnce;
spy.should.have.been.calledWith(testPath);
expect(spy.args[0][1]).to.be.ok; // stats
rawSpy.should.have.been.called;
});
it('should watch removed and re-added directories', async () => {
const unlinkSpy = sinon.spy(function unlinkSpy(){});
const addSpy = sinon.spy(function addSpy(){});
const parentPath = getFixturePath('subdir2');
const subPath = getFixturePath('subdir2/subsub');
watcher.on(EV_UNLINK_DIR, unlinkSpy).on(EV_ADD_DIR, addSpy);
await waitForWatcher(watcher);
await fs_mkdir(parentPath, PERM_ARR);
await delay(win32Polling ? 900 : 300);
await fs_rmdir(parentPath);
await waitFor([unlinkSpy.withArgs(parentPath)]);
unlinkSpy.should.have.been.calledWith(parentPath);
await fs_mkdir(parentPath, PERM_ARR);
await delay(win32Polling ? 2200 : 1200);
await fs_mkdir(subPath, PERM_ARR);
await waitFor([[addSpy, 3]]);
addSpy.should.have.been.calledWith(parentPath);
addSpy.should.have.been.calledWith(subPath);
});
it('should emit `unlinkDir` and `add` when dir is replaced by file', async () => {
options.ignoreInitial = true;
const unlinkSpy = sinon.spy(function unlinkSpy(){});
const addSpy = sinon.spy(function addSpy(){});
const testPath = getFixturePath('dirFile');
await fs_mkdir(testPath, PERM_ARR);
watcher.on(EV_UNLINK_DIR, unlinkSpy).on(EV_ADD, addSpy);
await waitForWatcher(watcher);
await delay();
await fs_rmdir(testPath);
await delay(300);
await write(testPath, 'file content');
await delay(300);
await waitFor([unlinkSpy]);
unlinkSpy.should.have.been.calledWith(testPath);
await waitFor([addSpy]);
addSpy.should.have.been.calledWith(testPath);
});
it('should emit `unlink` and `addDir` when file is replaced by dir', async () => {
options.ignoreInitial = true;
const unlinkSpy = sinon.spy(function unlinkSpy(){});
const addSpy = sinon.spy(function addSpy(){});
const testPath = getFixturePath('fileDir');
await write(testPath, 'file content');
watcher.on(EV_UNLINK, unlinkSpy).on(EV_ADD_DIR, addSpy);
await waitForWatcher(watcher);
await delay();
await fs_unlink(testPath);
await delay();
await fs_mkdir(testPath, PERM_ARR);
await waitFor([unlinkSpy]);
unlinkSpy.should.have.been.calledWith(testPath);
await waitFor([addSpy]);
addSpy.should.have.been.calledWith(testPath);
});
});
describe('watch individual files', () => {
it('should detect changes', async () => {
const testPath = getFixturePath('change.txt');
const watcher = chokidar_watch(testPath, options);
const spy = await aspy(watcher, EV_CHANGE);
await write(testPath, dateNow());
await waitFor([spy]);
spy.should.have.always.been.calledWith(testPath);
});
it('should detect unlinks', async () => {
const testPath = getFixturePath('unlink.txt');
const watcher = chokidar_watch(testPath, options);
const spy = await aspy(watcher, EV_UNLINK);
await delay();
await fs_unlink(testPath);
await waitFor([spy]);
spy.should.have.been.calledWith(testPath);
});
it('should detect unlink and re-add', async () => {
options.ignoreInitial = true;
const unlinkSpy = sinon.spy(function unlinkSpy(){});
const addSpy = sinon.spy(function addSpy(){});
const testPath = getFixturePath('unlink.txt');
const watcher = chokidar_watch([testPath], options)
.on(EV_UNLINK, unlinkSpy)
.on(EV_ADD, addSpy);
await waitForWatcher(watcher);
await delay();
await fs_unlink(testPath);
await waitFor([unlinkSpy]);
unlinkSpy.should.have.been.calledWith(testPath);
await delay();
await write(testPath, 're-added');
await waitFor([addSpy]);
addSpy.should.have.been.calledWith(testPath);
});
it('should ignore unwatched siblings', async () => {
const testPath = getFixturePath('add.txt');
const siblingPath = getFixturePath('change.txt');
const watcher = chokidar_watch(testPath, options);
const spy = await aspy(watcher, EV_ALL);
await delay();
await write(siblingPath, dateNow());
await write(testPath, dateNow());
await waitFor([spy]);
spy.should.have.always.been.calledWith(EV_ADD, testPath);
});
it('should detect safe-edit', async () => {
const testPath = getFixturePath('change.txt');
const safePath = getFixturePath('tmp.txt');
await write(testPath, dateNow());
const watcher = chokidar_watch(testPath, options);
const spy = await aspy(watcher, EV_ALL);
await delay();
await write(safePath, dateNow());
await fs_rename(safePath, testPath);
await delay(300);
await write(safePath, dateNow());
await fs_rename(safePath, testPath);
await delay(300);
await write(safePath, dateNow());
await fs_rename(safePath, testPath);
await delay(300);
await waitFor([spy]);
spy.withArgs(EV_CHANGE, testPath).should.have.been.calledThrice;
});
// PR 682 is failing.
describe.skip('Skipping gh-682: should detect unlink', () => {
it('should detect unlink while watching a non-existent second file in another directory', async () => {
const testPath = getFixturePath('unlink.txt');
const otherDirPath = getFixturePath('other-dir');
const otherPath = getFixturePath('other-dir/other.txt');
fs.mkdirSync(otherDirPath, PERM_ARR);
const watcher = chokidar_watch([testPath, otherPath], options);
// intentionally for this test don't write fs.writeFileSync(otherPath, 'other');
const spy = await aspy(watcher, EV_UNLINK);
await delay();
await fs_unlink(testPath);
await waitFor([spy]);
spy.should.have.been.calledWith(testPath);
});
it('should detect unlink and re-add while watching a second file', async () => {
options.ignoreInitial = true;
const unlinkSpy = sinon.spy(function unlinkSpy(){});
const addSpy = sinon.spy(function addSpy(){});
const testPath = getFixturePath('unlink.txt');
const otherPath = getFixturePath('other.txt');
fs.writeFileSync(otherPath, 'other');
const watcher = chokidar_watch([testPath, otherPath], options)
.on(EV_UNLINK, unlinkSpy)
.on(EV_ADD, addSpy);
await waitForWatcher(watcher);
await delay();
await fs_unlink(testPath);
await waitFor([unlinkSpy]);
await delay();
unlinkSpy.should.have.been.calledWith(testPath);
await delay();
write(testPath, 're-added');
await waitFor([addSpy]);
addSpy.should.have.been.calledWith(testPath);
});
it('should detect unlink and re-add while watching a non-existent second file in another directory', async () => {
options.ignoreInitial = true;
const unlinkSpy = sinon.spy(function unlinkSpy(){});
const addSpy = sinon.spy(function addSpy(){});
const testPath = getFixturePath('unlink.txt');
const otherDirPath = getFixturePath('other-dir');
const otherPath = getFixturePath('other-dir/other.txt');
fs.mkdirSync(otherDirPath, PERM_ARR);
// intentionally for this test don't write fs.writeFileSync(otherPath, 'other');
const watcher = chokidar_watch([testPath, otherPath], options)
.on(EV_UNLINK, unlinkSpy)
.on(EV_ADD, addSpy);
await waitForWatcher(watcher);
await delay();
await fs_unlink(testPath);
await waitFor([unlinkSpy]);
await delay();
unlinkSpy.should.have.been.calledWith(testPath);
await delay();
await write(testPath, 're-added');
await waitFor([addSpy]);
addSpy.should.have.been.calledWith(testPath);
});
it('should detect unlink and re-add while watching a non-existent second file in the same directory', async () => {
options.ignoreInitial = true;
const unlinkSpy = sinon.spy(function unlinkSpy(){});
const addSpy = sinon.spy(function addSpy(){});
const testPath = getFixturePath('unlink.txt');
const otherPath = getFixturePath('other.txt');
// intentionally for this test don't write fs.writeFileSync(otherPath, 'other');
const watcher = chokidar_watch([testPath, otherPath], options)
.on(EV_UNLINK, unlinkSpy)
.on(EV_ADD, addSpy);
await waitForWatcher(watcher);
await delay();
await fs_unlink(testPath);
await waitFor([unlinkSpy]);
await delay();
unlinkSpy.should.have.been.calledWith(testPath);
await delay();
await write(testPath, 're-added');
await waitFor([addSpy]);
addSpy.should.have.been.calledWith(testPath);
});
it('should detect two unlinks and one re-add', async () => {
options.ignoreInitial = true;
const unlinkSpy = sinon.spy(function unlinkSpy(){});
const addSpy = sinon.spy(function addSpy(){});
const testPath = getFixturePath('unlink.txt');
const otherPath = getFixturePath('other.txt');
fs.writeFileSync(otherPath, 'other');
const watcher = chokidar_watch([testPath, otherPath], options)
.on(EV_UNLINK, unlinkSpy)
.on(EV_ADD, addSpy);
await waitForWatcher(watcher);
await delay();
await fs_unlink(otherPath);
await delay();
await fs_unlink(testPath);
await waitFor([[unlinkSpy, 2]]);
await delay();
unlinkSpy.should.have.been.calledWith(otherPath);
unlinkSpy.should.have.been.calledWith(testPath);
await delay();
await write(testPath, 're-added');
await waitFor([addSpy]);
addSpy.should.have.been.calledWith(testPath);
});
it('should detect unlink and re-add while watching a second file and a non-existent third file', async () => {
options.ignoreInitial = true;
const unlinkSpy = sinon.spy(function unlinkSpy(){});
const addSpy = sinon.spy(function addSpy(){});
const testPath = getFixturePath('unlink.txt');
const otherPath = getFixturePath('other.txt');
const other2Path = getFixturePath('other2.txt');
fs.writeFileSync(otherPath, 'other');
// intentionally for this test don't write fs.writeFileSync(other2Path, 'other2');
const watcher = chokidar_watch([testPath, otherPath, other2Path], options)
.on(EV_UNLINK, unlinkSpy)
.on(EV_ADD, addSpy);
await waitForWatcher(watcher);
await delay();
await fs_unlink(testPath);
await waitFor([unlinkSpy]);
await delay();
unlinkSpy.should.have.been.calledWith(testPath);
await delay();
await write(testPath, 're-added');
await waitFor([addSpy]);
addSpy.should.have.been.calledWith(testPath);
});
});
});
describe('renamed directory', () => {
it('should emit `add` for a file in a renamed directory', async () => {
options.ignoreInitial = true;
const testDir = getFixturePath('subdir');
const testPath = getFixturePath('subdir/add.txt');
const renamedDir = getFixturePath('subdir-renamed');
const expectedPath = sysPath.join(renamedDir, 'add.txt');
await fs_mkdir(testDir, PERM_ARR);
await write(testPath, dateNow());
const watcher = chokidar_watch(currentDir, options);
const spy = await aspy(watcher, EV_ADD);
await delay(1000);
await fs_rename(testDir, renamedDir);
await waitFor([spy.withArgs(expectedPath)]);
spy.should.have.been.calledWith(expectedPath);
});
});
describe('watch non-existent paths', () => {
it('should watch non-existent file and detect add', async () => {
const testPath = getFixturePath('add.txt');
const watcher = chokidar_watch(testPath, options);
const spy = await aspy(watcher, EV_ADD);
await delay();
await write(testPath, dateNow());
await waitFor([spy]);
spy.should.have.been.calledWith(testPath);
});
it('should watch non-existent dir and detect addDir/add', async () => {
const testDir = getFixturePath('subdir');
const testPath = getFixturePath('subdir/add.txt');
const watcher = chokidar_watch(testDir, options);
const spy = await aspy(watcher, EV_ALL);
spy.should.not.have.been.called;
await delay();
await fs_mkdir(testDir, PERM_ARR);
await delay();
await write(testPath, 'hello');
await waitFor([spy.withArgs(EV_ADD)]);
spy.should.have.been.calledWith(EV_ADD_DIR, testDir);
spy.should.have.been.calledWith(EV_ADD, testPath);
});
});
describe('watch glob patterns', () => {
it('should correctly watch and emit based on glob input', async () => {
const watchPath = getGlobPath('*a*.txt');
const addPath = getFixturePath('add.txt');
const changePath = getFixturePath('change.txt');
const watcher = chokidar_watch(watchPath, options);
const spy = await aspy(watcher, EV_ALL);
spy.should.have.been.calledWith(EV_ADD, changePath);
await write(addPath, dateNow());
await write(changePath, dateNow());
await delay();
await waitFor([[spy, 3], spy.withArgs(EV_ADD, addPath)]);
spy.should.have.been.calledWith(EV_ADD, addPath);
spy.should.have.been.calledWith(EV_CHANGE, changePath);
spy.should.not.have.been.calledWith(EV_ADD, getFixturePath('unlink.txt'));
spy.should.not.have.been.calledWith(EV_ADD_DIR);
});
it('should respect negated glob patterns', async () => {
const watchPath = getGlobPath('*');
const negatedWatchPath = `!${getGlobPath('*a*.txt')}`;
const unlinkPath = getFixturePath('unlink.txt');
const watcher = chokidar_watch([watchPath, negatedWatchPath], options);
const spy = await aspy(watcher, EV_ALL);
spy.should.have.been.calledOnce;
spy.should.have.been.calledWith(EV_ADD, unlinkPath);
await delay();
await fs_unlink(unlinkPath);
await waitFor([[spy, 2], spy.withArgs(EV_UNLINK)]);
spy.should.have.been.calledTwice;
spy.should.have.been.calledWith(EV_UNLINK, unlinkPath);
});
it('should traverse subdirs to match globstar patterns', async () => {
const watchPath = getGlobPath(`../../test-*/${subdirId}/**/a*.txt`);
const addFile = getFixturePath('add.txt');
const subdir = getFixturePath('subdir');
const subsubdir = getFixturePath('subdir/subsub');
const aFile = getFixturePath('subdir/a.txt');
const bFile = getFixturePath('subdir/b.txt');
const subFile = getFixturePath('subdir/subsub/ab.txt');
fs.mkdirSync(subdir, PERM_ARR);
fs.mkdirSync(subsubdir, PERM_ARR);
fs.writeFileSync(aFile, 'b');
fs.writeFileSync(bFile, 'b');
fs.writeFileSync(subFile, 'b');
await delay();
const watcher = chokidar_watch(watchPath, options);
const spy = await aspy(watcher, EV_ALL);
await Promise.all([
write(addFile, dateNow()),
write(subFile, dateNow()),
fs_unlink(aFile),
fs_unlink(bFile)
]);
await waitFor([spy.withArgs(EV_CHANGE)]);
spy.withArgs(EV_CHANGE).should.have.been.calledOnce;
spy.should.have.been.calledWith(EV_CHANGE, subFile);
await waitFor([spy.withArgs(EV_UNLINK)]);
spy.withArgs(EV_UNLINK).should.have.been.calledOnce;
spy.should.have.been.calledWith(EV_UNLINK, aFile);
await waitFor([[spy.withArgs(EV_ADD), 3]]);
spy.withArgs(EV_ADD).should.have.been.calledThrice;
});
it('should resolve relative paths with glob patterns', async () => {
const id = subdirId.toString();
const watchPath = `test-*/${id}/*a*.txt`;
// getFixturePath() returns absolute paths, so use sysPath.join() instead
const addPath = sysPath.join(FIXTURES_PATH_REL, id, 'add.txt');
const changePath = sysPath.join(FIXTURES_PATH_REL, id, 'change.txt');
const unlinkPath = getFixturePath('unlink.txt');
const watcher = chokidar_watch(watchPath, options);
const spy = await aspy(watcher, EV_ALL);
spy.should.have.been.calledWith(EV_ADD);
await Promise.all([
write(addPath, dateNow()),
write(changePath, dateNow())
]);
await waitFor([[spy, 3], spy.withArgs(EV_ADD, addPath)]);
spy.should.have.been.calledWith(EV_ADD, addPath);
spy.should.have.been.calledWith(EV_CHANGE, changePath);
spy.should.not.have.been.calledWith(EV_ADD, unlinkPath);
spy.should.not.have.been.calledWith(EV_ADD_DIR);
if (!macosFswatch) spy.should.have.been.calledThrice;
});
it('should correctly handle conflicting glob patterns', async () => {
const changePath = getFixturePath('change.txt');
const unlinkPath = getFixturePath('unlink.txt');
const addPath = getFixturePath('add.txt');
const watchPaths = [getGlobPath('change*'), getGlobPath('unlink*')];
const watcher = chokidar_watch(watchPaths, options);
const spy = await aspy(watcher, EV_ALL);
spy.should.have.been.calledWith(EV_ADD, changePath);
spy.should.have.been.calledWith(EV_ADD, unlinkPath);
spy.should.have.been.calledTwice;
await delay();
await fs_unlink(unlinkPath);
await write(addPath, dateNow());
await write(changePath, dateNow());
await waitFor([[spy, 4], spy.withArgs(EV_UNLINK, unlinkPath)]);
spy.should.have.been.calledWith(EV_CHANGE, changePath);
spy.should.have.been.calledWith(EV_UNLINK, unlinkPath);
spy.should.not.have.been.calledWith(EV_ADD, addPath);
spy.callCount.should.equal(4);
});
it('should correctly handle intersecting glob patterns', async () => {
const changePath = getFixturePath('change.txt');
const watchPaths = [getGlobPath('cha*'), getGlobPath('*nge.*')];
const watcher = chokidar_watch(watchPaths, options);
const spy = await aspy(watcher, EV_ALL);
spy.should.have.been.calledWith(EV_ADD, changePath);
spy.should.have.been.calledOnce;
await write(changePath, dateNow());
await delay();
await waitFor([[spy, 2]]);
spy.should.have.been.calledWith(EV_CHANGE, changePath);
spy.should.have.been.calledTwice;
});
it('should not confuse glob-like filenames with globs', async () => {
const filePath = getFixturePath('nota[glob].txt');
await write(filePath, 'b');
await delay();
const spy = await aspy(chokidar_watch(), EV_ALL);
spy.should.have.been.calledWith(EV_ADD, filePath);
await delay();
await write(filePath, dateNow());
await waitFor([spy.withArgs(EV_CHANGE, filePath)]);
spy.should.have.been.calledWith(EV_CHANGE, filePath);
});
it('should treat glob-like directory names as literal directory names when globbing is disabled', async () => {
options.disableGlobbing = true;
const filePath = getFixturePath('nota[glob]/a.txt');
const watchPath = getFixturePath('nota[glob]');
const testDir = getFixturePath('nota[glob]');
const matchingDir = getFixturePath('notag');
const matchingFile = getFixturePath('notag/b.txt');
const matchingFile2 = getFixturePath('notal');
fs.mkdirSync(testDir, PERM_ARR);
fs.writeFileSync(filePath, 'b');
fs.mkdirSync(matchingDir, PERM_ARR);
fs.writeFileSync(matchingFile, 'c');
fs.writeFileSync(matchingFile2, 'd');
const watcher = chokidar_watch(watchPath, options);
const spy = await aspy(watcher, EV_ALL);
spy.should.have.been.calledWith(EV_ADD, filePath);
spy.should.not.have.been.calledWith(EV_ADD_DIR, matchingDir);
spy.should.not.have.been.calledWith(EV_ADD, matchingFile);
spy.should.not.have.been.calledWith(EV_ADD, matchingFile2);
await delay();
await write(filePath, dateNow());
await waitFor([spy.withArgs(EV_CHANGE, filePath)]);
spy.should.have.been.calledWith(EV_CHANGE, filePath);
});
it('should treat glob-like filenames as literal filenames when globbing is disabled', async () => {
options.disableGlobbing = true;
const filePath = getFixturePath('nota[glob]');
// This isn't using getGlobPath because it isn't treated as a glob
const watchPath = getFixturePath('nota[glob]');
const matchingDir = getFixturePath('notag');
const matchingFile = getFixturePath('notag/a.txt');
const matchingFile2 = getFixturePath('notal');
fs.writeFileSync(filePath, 'b');
fs.mkdirSync(matchingDir, PERM_ARR);
fs.writeFileSync(matchingFile, 'c');
fs.writeFileSync(matchingFile2, 'd');
const watcher = chokidar_watch(watchPath, options);
const spy = await aspy(watcher, EV_ALL);
spy.should.have.been.calledWith(EV_ADD, filePath);
spy.should.not.have.been.calledWith(EV_ADD_DIR, matchingDir);
spy.should.not.have.been.calledWith(EV_ADD, matchingFile);
spy.should.not.have.been.calledWith(EV_ADD, matchingFile2);