test: fix todo (#3693)

test/e2e/__snapshots__/host-and-port.test.js.snap.webpack4

@@ -1,5 +1,38 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`host and port should work using "0.0.0.0" host and "auto" port: console messages 1`] = `
+Array [
+  "[HMR] Waiting for update signal from WDS...",
+  "Hey.",
+  "[webpack-dev-server] Hot Module Replacement enabled.",
+  "[webpack-dev-server] Live Reloading enabled.",
+]
+`;
+
+exports[`host and port should work using "0.0.0.0" host and "auto" port: page errors 1`] = `Array []`;
+
+exports[`host and port should work using "0.0.0.0" host and port as number: console messages 1`] = `
+Array [
+  "[HMR] Waiting for update signal from WDS...",
+  "Hey.",
+  "[webpack-dev-server] Hot Module Replacement enabled.",
+  "[webpack-dev-server] Live Reloading enabled.",
+]
+`;
+
+exports[`host and port should work using "0.0.0.0" host and port as number: page errors 1`] = `Array []`;
+
+exports[`host and port should work using "0.0.0.0" host and port as string: console messages 1`] = `
+Array [
+  "[HMR] Waiting for update signal from WDS...",
+  "Hey.",
+  "[webpack-dev-server] Hot Module Replacement enabled.",
+  "[webpack-dev-server] Live Reloading enabled.",
+]
+`;
+
+exports[`host and port should work using "0.0.0.0" host and port as string: page errors 1`] = `Array []`;
+
 exports[`host and port should work using "127.0.0.1" host and "auto" port: console messages 1`] = `
 Array [
   "[HMR] Waiting for update signal from WDS...",

test/e2e/__snapshots__/host-and-port.test.js.snap.webpack5

@@ -1,5 +1,38 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`host and port should work using "0.0.0.0" host and "auto" port: console messages 1`] = `
+Array [
+  "[HMR] Waiting for update signal from WDS...",
+  "Hey.",
+  "[webpack-dev-server] Hot Module Replacement enabled.",
+  "[webpack-dev-server] Live Reloading enabled.",
+]
+`;
+
+exports[`host and port should work using "0.0.0.0" host and "auto" port: page errors 1`] = `Array []`;
+
+exports[`host and port should work using "0.0.0.0" host and port as number: console messages 1`] = `
+Array [
+  "[HMR] Waiting for update signal from WDS...",
+  "Hey.",
+  "[webpack-dev-server] Hot Module Replacement enabled.",
+  "[webpack-dev-server] Live Reloading enabled.",
+]
+`;
+
+exports[`host and port should work using "0.0.0.0" host and port as number: page errors 1`] = `Array []`;
+
+exports[`host and port should work using "0.0.0.0" host and port as string: console messages 1`] = `
+Array [
+  "[HMR] Waiting for update signal from WDS...",
+  "Hey.",
+  "[webpack-dev-server] Hot Module Replacement enabled.",
+  "[webpack-dev-server] Live Reloading enabled.",
+]
+`;
+
+exports[`host and port should work using "0.0.0.0" host and port as string: page errors 1`] = `Array []`;
+
 exports[`host and port should work using "127.0.0.1" host and "auto" port: console messages 1`] = `
 Array [
   "[HMR] Waiting for update signal from WDS...",

test/e2e/host-and-port.test.js

@@ -8,8 +8,8 @@ const runBrowser = require("../helpers/run-browser");
 const port = require("../ports-map")["host-and-port"];
 
 describe("host and port", () => {
-  // TODO: add "0.0.0.0" and "local-ipv6"
-  const hosts = ["localhost", "127.0.0.1", "local-ip", "local-ipv4"];
+  // TODO: add "local-ipv6"
+  const hosts = ["0.0.0.0", "localhost", "127.0.0.1", "local-ip", "local-ipv4"];
 
   for (const host of hosts) {
     it(`should work using "${host}" host and port as number`, async () => {
@@ -18,7 +18,9 @@ describe("host and port", () => {
 
       let hostname = host;
 
-      if (hostname === "local-ip" || hostname === "local-ipv4") {
+      if (hostname === "0.0.0.0") {
+        hostname = "127.0.0.1";
+      } else if (hostname === "local-ip" || hostname === "local-ipv4") {
         hostname = internalIp.v4.sync();
       }
 
@@ -57,7 +59,9 @@ describe("host and port", () => {
 
       let hostname = host;
 
-      if (hostname === "local-ip" || hostname === "local-ipv4") {
+      if (hostname === "0.0.0.0") {
+        hostname = "127.0.0.1";
+      } else if (hostname === "local-ip" || hostname === "local-ipv4") {
         hostname = internalIp.v4.sync();
       }
 
@@ -99,7 +103,9 @@ describe("host and port", () => {
 
       let hostname = host;
 
-      if (hostname === "local-ip" || hostname === "local-ipv4") {
+      if (hostname === "0.0.0.0") {
+        hostname = "127.0.0.1";
+      } else if (hostname === "local-ip" || hostname === "local-ipv4") {
         hostname = internalIp.v4.sync();
       }