test(watching): add tests
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@ -7,6 +7,8 @@ const MultiWatching = require("../lib/MultiWatching");
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const createWatching = () => {
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return {
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invalidate: jest.fn(),
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suspend: jest.fn(),
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resume: jest.fn(),
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close: jest.fn()
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};
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};
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@ -43,6 +45,20 @@ describe("MultiWatching", () => {
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});
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});
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describe("suspend", () => {
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it("suspends each watching", () => {
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myMultiWatching.suspend();
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expect(watchings[0].suspend.mock.calls.length).toBe(1);
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expect(watchings[1].suspend.mock.calls.length).toBe(1);
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});
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it("resume each watching", () => {
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myMultiWatching.resume();
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expect(watchings[0].resume.mock.calls.length).toBe(1);
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expect(watchings[1].resume.mock.calls.length).toBe(1);
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});
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});
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describe("close", () => {
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let callback;
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const callClosedFinishedCallback = watching => {
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@ -0,0 +1,94 @@
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"use strict";
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/*globals describe it */
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const path = require("path");
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const fs = require("fs");
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const webpack = require("../");
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describe("WatchSuspend", () => {
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if (process.env.NO_WATCH_TESTS) {
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it.skip("long running tests excluded", () => {});
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return;
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}
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jest.setTimeout(5000);
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describe("suspend ans resume watcher", () => {
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const fixturePath = path.join(
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__dirname,
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"fixtures",
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"temp-watch-" + Date.now()
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);
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const filePath = path.join(fixturePath, "file.js");
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let compiler = null;
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let watching = null;
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beforeAll(() => {
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try {
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fs.mkdirSync(fixturePath);
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} catch (e) {
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// skip
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}
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try {
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fs.writeFileSync(filePath, "'foo'", "utf-8");
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} catch (e) {
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// skip
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}
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});
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afterAll(done => {
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watching.close();
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compiler = null;
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setTimeout(() => {
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try {
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fs.unlinkSync(filePath);
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} catch (e) {
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// skip
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}
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try {
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fs.rmdirSync(fixturePath);
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} catch (e) {
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// skip
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}
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done();
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}, 100); // cool down a bit
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});
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it("should compile successfully", done => {
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compiler = webpack({
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mode: "development",
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entry: filePath,
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output: {
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path: fixturePath,
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filename: "bundle.js"
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}
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});
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watching = compiler.watch({ aggregateTimeout: 50 }, err => {
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expect(err).toBe(null);
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done();
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});
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});
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it("should suspend compilation", done => {
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const spy = jest.fn();
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watching.suspend();
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fs.writeFileSync(filePath, "'bar'", "utf-8");
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compiler.hooks.compilation.tap("WatchSuspendTest", spy);
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// compiler.hooks.done.tap("WatchSuspendTest", spy);
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setTimeout(() => {
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expect(spy.mock.calls.length).toBe(0);
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done();
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}, 100); // 2x aggregateTimeout
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});
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it("should resume compilation", done => {
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compiler.hooks.done.tap("WatchSuspendTest", () => {
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const outputPath = path.join(fixturePath, "bundle.js");
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expect(fs.readFileSync(outputPath, "utf-8")).toContain("'bar'");
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done();
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});
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watching.resume();
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});
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});
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});
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