test: add e2e tests for compress option

test/e2e/__snapshots__/compress.test.js.snap.webpack4

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+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`compress option as false should handle GET request to bundle file: console messages 1`] = `Array []`;
+
+exports[`compress option as false should handle GET request to bundle file: page errors 1`] = `Array []`;
+
+exports[`compress option as false should handle GET request to bundle file: response headers content-encoding 1`] = `undefined`;
+
+exports[`compress option as false should handle GET request to bundle file: response status 1`] = `200`;
+
+exports[`compress option as true should handle GET request to bundle file: console messages 1`] = `Array []`;
+
+exports[`compress option as true should handle GET request to bundle file: page errors 1`] = `Array []`;
+
+exports[`compress option as true should handle GET request to bundle file: response headers content-encoding 1`] = `"gzip"`;
+
+exports[`compress option as true should handle GET request to bundle file: response status 1`] = `200`;
+
+exports[`compress option enabled by default when not specified should handle GET request to bundle file: console messages 1`] = `Array []`;
+
+exports[`compress option enabled by default when not specified should handle GET request to bundle file: page errors 1`] = `Array []`;
+
+exports[`compress option enabled by default when not specified should handle GET request to bundle file: response headers content-encoding 1`] = `"gzip"`;
+
+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
+
+exports[`compress option as false should handle GET request to bundle file: console messages 1`] = `Array []`;
+
+exports[`compress option as false should handle GET request to bundle file: page errors 1`] = `Array []`;
+
+exports[`compress option as false should handle GET request to bundle file: response headers content-encoding 1`] = `undefined`;
+
+exports[`compress option as false should handle GET request to bundle file: response status 1`] = `200`;
+
+exports[`compress option as true should handle GET request to bundle file: console messages 1`] = `Array []`;
+
+exports[`compress option as true should handle GET request to bundle file: page errors 1`] = `Array []`;
+
+exports[`compress option as true should handle GET request to bundle file: response headers content-encoding 1`] = `"gzip"`;
+
+exports[`compress option as true should handle GET request to bundle file: response status 1`] = `200`;
+
+exports[`compress option enabled by default when not specified should handle GET request to bundle file: console messages 1`] = `Array []`;
+
+exports[`compress option enabled by default when not specified should handle GET request to bundle file: page errors 1`] = `Array []`;
+
+exports[`compress option enabled by default when not specified should handle GET request to bundle file: response headers content-encoding 1`] = `"gzip"`;
+
+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";
+
+const webpack = require("webpack");
+const Server = require("../../lib/Server");
+const config = require("../fixtures/simple-config-other/webpack.config");
+const runBrowser = require("../helpers/run-browser");
+const port = require("../ports-map")["compress-option"];
+
+describe("compress option", () => {
+  describe("enabled by default when not specified", () => {
+    let compiler;
+    let server;
+    let page;
+    let browser;
+    let pageErrors;
+    let consoleMessages;
+
+    beforeEach(async () => {
+      compiler = webpack(config);
+
+      server = new Server({ port }, compiler);
+
+      await server.start();
+
+      ({ page, browser } = await runBrowser());
+
+      pageErrors = [];
+      consoleMessages = [];
+    });
+
+    afterEach(async () => {
+      await browser.close();
+      await server.stop();
+    });
+
+    it("should handle GET request to bundle file", async () => {
+      page
+        .on("console", (message) => {
+          consoleMessages.push(message);
+        })
+        .on("pageerror", (error) => {
+          pageErrors.push(error);
+        });
+
+      const response = await page.goto(`http://127.0.0.1:${port}/main.js`, {
+        waitUntil: "networkidle0",
+      });
+
+      expect(response.status()).toMatchSnapshot("response status");
+
+      expect(response.headers()["content-encoding"]).toMatchSnapshot(
+        "response headers content-encoding"
+      );
+
+      expect(consoleMessages.map((message) => message.text())).toMatchSnapshot(
+        "console messages"
+      );
+
+      expect(pageErrors).toMatchSnapshot("page errors");
+    });
+  });
+
+  describe("as true", () => {
+    let compiler;
+    let server;
+    let page;
+    let browser;
+    let pageErrors;
+    let consoleMessages;
+
+    beforeEach(async () => {
+      compiler = webpack(config);
+
+      server = new Server(
+        {
+          compress: true,
+          port,
+        },
+        compiler
+      );
+
+      await server.start();
+
+      ({ page, browser } = await runBrowser());
+
+      pageErrors = [];
+      consoleMessages = [];
+    });
+
+    afterEach(async () => {
+      await browser.close();
+      await server.stop();
+    });
+
+    it("should handle GET request to bundle file", async () => {
+      page
+        .on("console", (message) => {
+          consoleMessages.push(message);
+        })
+        .on("pageerror", (error) => {
+          pageErrors.push(error);
+        });
+
+      const response = await page.goto(`http://127.0.0.1:${port}/main.js`, {
+        waitUntil: "networkidle0",
+      });
+
+      expect(response.status()).toMatchSnapshot("response status");
+
+      expect(response.headers()["content-encoding"]).toMatchSnapshot(
+        "response headers content-encoding"
+      );
+
+      expect(consoleMessages.map((message) => message.text())).toMatchSnapshot(
+        "console messages"
+      );
+
+      expect(pageErrors).toMatchSnapshot("page errors");
+    });
+  });
+
+  describe("as false", () => {
+    let compiler;
+    let server;
+    let page;
+    let browser;
+    let pageErrors;
+    let consoleMessages;
+
+    beforeEach(async () => {
+      compiler = webpack(config);
+
+      server = new Server(
+        {
+          compress: false,
+          port,
+        },
+        compiler
+      );
+
+      await server.start();
+
+      ({ page, browser } = await runBrowser());
+
+      pageErrors = [];
+      consoleMessages = [];
+    });
+
+    afterEach(async () => {
+      await browser.close();
+      await server.stop();
+    });
+
+    it("should handle GET request to bundle file", async () => {
+      page
+        .on("console", (message) => {
+          consoleMessages.push(message);
+        })
+        .on("pageerror", (error) => {
+          pageErrors.push(error);
+        });
+
+      const response = await page.goto(`http://127.0.0.1:${port}/main.js`, {
+        waitUntil: "networkidle0",
+      });
+
+      expect(response.status()).toMatchSnapshot("response status");
+
+      expect(response.headers()["content-encoding"]).toMatchSnapshot(
+        "response headers content-encoding"
+      );
+
+      expect(consoleMessages.map((message) => message.text())).toMatchSnapshot(
+        "console messages"
+      );
+
+      expect(pageErrors).toMatchSnapshot("page errors");
+    });
+  });
+});