test: add test for multiple inlined modules

test/configCases/output-module/multiple-inlined-module/index-1.js

@@ -0,0 +1,16 @@
+import { value as v1 } from "./module1";
+const v2 = require("./module2")
+
+var value = 42;
+
+function inc() {
+	value++;
+}
+
+ it("multiple inlined modules should be wrapped in IIFE to isolate from other inlined modules and chunk modules", () => {
+	expect(value).toBe(42);
+	expect(v1).toBe(undefined);
+	expect(v2).toBe(undefined);
+	inc();
+	expect(value).toBe(43);
+});

test/configCases/output-module/multiple-inlined-module/index-2.js

@@ -0,0 +1 @@
+var value = 42;

test/configCases/output-module/multiple-inlined-module/module1.js

@@ -0,0 +1,3 @@
+let value;
+
+export { value };

test/configCases/output-module/multiple-inlined-module/module2.js

@@ -0,0 +1,3 @@
+let value
+
+module.exports = value

test/configCases/output-module/multiple-inlined-module/webpack.config.js

@@ -0,0 +1,14 @@
+/** @type {import("../../../../").Configuration} */
+module.exports = {
+	entry: ["./index-1.js", "./index-2.js"],
+	output: {
+		module: true
+	},
+	optimization: {
+		concatenateModules: true
+	},
+	experiments: {
+		outputModule: true
+	},
+	target: "es2020"
+};