test: add a config case for moduleIds: 'natural'

packages/rspack-test-tools/tests/configCases/optimization/module-ids-natural/a.js

@@ -0,0 +1,15 @@
+export const a = 42;
+
+import b from "./b.js";
+
+it("should load c.js", () => {
+	expect(b).toBe("foo");
+
+	const d = require("./d.js");
+
+	expect(d.default).toEqual({});
+});
+
+export { b }
+
+export const c = require("./c.js");

packages/rspack-test-tools/tests/configCases/optimization/module-ids-natural/b.js

@@ -0,0 +1 @@
+module.exports = "foo";

packages/rspack-test-tools/tests/configCases/optimization/module-ids-natural/c.js

@@ -0,0 +1,3 @@
+export function c() {
+	return "bar"
+}

packages/rspack-test-tools/tests/configCases/optimization/module-ids-natural/d.js

@@ -0,0 +1 @@
+export default {}

packages/rspack-test-tools/tests/configCases/optimization/module-ids-natural/index.js

@@ -0,0 +1,7 @@
+import { a, b } from "./a.js";
+
+it('should load a.js', () => {
+	expect(a).toBe(42)
+
+	expect(b).toBe("foo")
+})

packages/rspack-test-tools/tests/configCases/optimization/module-ids-natural/rspack.config.js

@@ -0,0 +1,6 @@
+/** @type {import("@rspack/core").Configuration} */
+module.exports = {
+	optimization: {
+		moduleIds: "natural"
+	},
+};