/
Watch.test.js
61 lines (57 loc) · 1.31 KB
/
Watch.test.js
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"use strict";
require("./helpers/warmup-webpack");
const path = require("path");
const webpack = require("..");
const { createFsFromVolume, Volume } = require("memfs");
describe("Watch", () => {
jest.setTimeout(10000);
it("should only compile a single time", done => {
let counterBeforeCompile = 0;
let counterDone = 0;
let counterHandler = 0;
const compiler = webpack(
{
context: path.resolve(__dirname, "fixtures/watch"),
watch: true,
mode: "development",
snapshot: {
managedPaths: [/^(.+?[\\/]node_modules[\\/])/]
},
experiments: {
futureDefaults: true
},
module: {
// unsafeCache: false,
rules: [
{
test: /\.js$/,
use: "some-loader"
}
]
},
plugins: [
c => {
c.hooks.beforeCompile.tap("test", () => {
counterBeforeCompile++;
});
c.hooks.done.tap("test", () => {
counterDone++;
});
}
]
},
(err, stats) => {
if (err) return done(err);
if (stats.hasErrors()) return done(new Error(stats.toString()));
counterHandler++;
}
);
compiler.outputFileSystem = createFsFromVolume(new Volume());
setTimeout(() => {
expect(counterBeforeCompile).toBe(1);
expect(counterDone).toBe(1);
expect(counterHandler).toBe(1);
compiler.close(done);
}, 5000);
});
});