84 lines
1.8 KiB
JavaScript
84 lines
1.8 KiB
JavaScript
const Watcher = require('../index');
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const fs = require('@parcel/fs');
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const path = require('path');
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const assert = require('assert');
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const {sleep} = require('@parcel/test-utils');
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describe('error handling', function() {
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let tmpFolder = path.join(__dirname, './tmp/');
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before(() => {
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fs.mkdirp(tmpFolder);
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});
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it('Should restart child process if it dies', async () => {
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let watcher = new Watcher({});
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let filepath = path.join(tmpFolder, 'file1.txt');
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await fs.writeFile(filepath, 'this is a text document');
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watcher.add(filepath);
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let changed = false;
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watcher.once('change', () => {
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changed = true;
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});
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if (!watcher.ready) {
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await new Promise(resolve => watcher.once('ready', resolve));
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}
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await sleep(250);
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watcher._emulateChildDead();
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await sleep(1000);
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await fs.writeFile(filepath, 'this is not a text document');
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await sleep(500);
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assert(changed, 'Should have emitted a change event.');
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await watcher.stop();
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});
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it('Should restart child process on errors', async () => {
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let watcher = new Watcher({});
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let filepath = path.join(tmpFolder, 'file1.txt');
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await fs.writeFile(filepath, 'this is a text document');
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watcher.add(filepath);
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let hasThrown = false;
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watcher.on('watcherError', () => (hasThrown = true));
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let changed = false;
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watcher.once('change', () => {
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changed = true;
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});
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if (!watcher.ready) {
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await new Promise(resolve => watcher.once('ready', resolve));
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}
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await sleep(250);
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watcher._emulateChildError();
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await sleep(1000);
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await fs.writeFile(filepath, 'this is not a text document');
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await sleep(500);
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assert(changed, 'Should have emitted a change event.');
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await watcher.stop();
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assert(hasThrown, 'Should have emitted an error event.');
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});
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});
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