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test: add e2e tests for compress option (#3790)
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‎test/e2e/__snapshots__/compress.test.js.snap.webpack4

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// Jest Snapshot v1, https://goo.gl/fbAQLP
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exports[`compress option as false should handle GET request to bundle file: console messages 1`] = `Array []`;
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exports[`compress option as false should handle GET request to bundle file: page errors 1`] = `Array []`;
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exports[`compress option as false should handle GET request to bundle file: response headers content-encoding 1`] = `undefined`;
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exports[`compress option as false should handle GET request to bundle file: response status 1`] = `200`;
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exports[`compress option as true should handle GET request to bundle file: console messages 1`] = `Array []`;
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exports[`compress option as true should handle GET request to bundle file: page errors 1`] = `Array []`;
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exports[`compress option as true should handle GET request to bundle file: response headers content-encoding 1`] = `"gzip"`;
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exports[`compress option as true should handle GET request to bundle file: response status 1`] = `200`;
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exports[`compress option enabled by default when not specified should handle GET request to bundle file: console messages 1`] = `Array []`;
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exports[`compress option enabled by default when not specified should handle GET request to bundle file: page errors 1`] = `Array []`;
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exports[`compress option enabled by default when not specified should handle GET request to bundle file: response headers content-encoding 1`] = `"gzip"`;
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exports[`compress option enabled by default when not specified should handle GET request to bundle file: response status 1`] = `200`;

‎test/e2e/__snapshots__/compress.test.js.snap.webpack5

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// Jest Snapshot v1, https://goo.gl/fbAQLP
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exports[`compress option as false should handle GET request to bundle file: console messages 1`] = `Array []`;
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exports[`compress option as false should handle GET request to bundle file: page errors 1`] = `Array []`;
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exports[`compress option as false should handle GET request to bundle file: response headers content-encoding 1`] = `undefined`;
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exports[`compress option as false should handle GET request to bundle file: response status 1`] = `200`;
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exports[`compress option as true should handle GET request to bundle file: console messages 1`] = `Array []`;
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exports[`compress option as true should handle GET request to bundle file: page errors 1`] = `Array []`;
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exports[`compress option as true should handle GET request to bundle file: response headers content-encoding 1`] = `"gzip"`;
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exports[`compress option as true should handle GET request to bundle file: response status 1`] = `200`;
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exports[`compress option enabled by default when not specified should handle GET request to bundle file: console messages 1`] = `Array []`;
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exports[`compress option enabled by default when not specified should handle GET request to bundle file: page errors 1`] = `Array []`;
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exports[`compress option enabled by default when not specified should handle GET request to bundle file: response headers content-encoding 1`] = `"gzip"`;
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exports[`compress option enabled by default when not specified should handle GET request to bundle file: response status 1`] = `200`;

‎test/e2e/compress.test.js

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"use strict";
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const webpack = require("webpack");
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const Server = require("../../lib/Server");
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const config = require("../fixtures/simple-config-other/webpack.config");
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const runBrowser = require("../helpers/run-browser");
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const port = require("../ports-map")["compress-option"];
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describe("compress option", () => {
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describe("enabled by default when not specified", () => {
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let compiler;
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let server;
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let page;
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let browser;
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let pageErrors;
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let consoleMessages;
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beforeEach(async () => {
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compiler = webpack(config);
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server = new Server({ port }, compiler);
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await server.start();
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({ page, browser } = await runBrowser());
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pageErrors = [];
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consoleMessages = [];
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});
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afterEach(async () => {
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await browser.close();
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await server.stop();
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});
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it("should handle GET request to bundle file", async () => {
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page
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.on("console", (message) => {
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consoleMessages.push(message);
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})
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.on("pageerror", (error) => {
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pageErrors.push(error);
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});
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const response = await page.goto(`http://127.0.0.1:${port}/main.js`, {
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waitUntil: "networkidle0",
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});
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expect(response.status()).toMatchSnapshot("response status");
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expect(response.headers()["content-encoding"]).toMatchSnapshot(
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"response headers content-encoding"
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);
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expect(consoleMessages.map((message) => message.text())).toMatchSnapshot(
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"console messages"
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);
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expect(pageErrors).toMatchSnapshot("page errors");
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});
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});
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describe("as true", () => {
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let compiler;
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let server;
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let page;
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let browser;
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let pageErrors;
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let consoleMessages;
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beforeEach(async () => {
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compiler = webpack(config);
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server = new Server(
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{
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compress: true,
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port,
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},
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compiler
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);
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await server.start();
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({ page, browser } = await runBrowser());
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pageErrors = [];
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consoleMessages = [];
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});
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afterEach(async () => {
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await browser.close();
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await server.stop();
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});
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it("should handle GET request to bundle file", async () => {
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page
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.on("console", (message) => {
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consoleMessages.push(message);
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})
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.on("pageerror", (error) => {
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pageErrors.push(error);
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});
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const response = await page.goto(`http://127.0.0.1:${port}/main.js`, {
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waitUntil: "networkidle0",
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});
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expect(response.status()).toMatchSnapshot("response status");
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expect(response.headers()["content-encoding"]).toMatchSnapshot(
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"response headers content-encoding"
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);
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expect(consoleMessages.map((message) => message.text())).toMatchSnapshot(
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"console messages"
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);
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expect(pageErrors).toMatchSnapshot("page errors");
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});
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});
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describe("as false", () => {
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let compiler;
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let server;
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let page;
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let browser;
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let pageErrors;
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let consoleMessages;
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beforeEach(async () => {
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compiler = webpack(config);
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server = new Server(
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{
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compress: false,
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port,
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},
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compiler
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);
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await server.start();
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({ page, browser } = await runBrowser());
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pageErrors = [];
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consoleMessages = [];
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});
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afterEach(async () => {
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await browser.close();
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await server.stop();
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});
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it("should handle GET request to bundle file", async () => {
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page
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.on("console", (message) => {
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consoleMessages.push(message);
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})
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.on("pageerror", (error) => {
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pageErrors.push(error);
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});
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const response = await page.goto(`http://127.0.0.1:${port}/main.js`, {
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waitUntil: "networkidle0",
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});
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expect(response.status()).toMatchSnapshot("response status");
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expect(response.headers()["content-encoding"]).toMatchSnapshot(
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"response headers content-encoding"
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);
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expect(consoleMessages.map((message) => message.text())).toMatchSnapshot(
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"console messages"
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);
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expect(pageErrors).toMatchSnapshot("page errors");
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});
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});
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});

‎test/server/compress-option.test.js

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