test: add persistent cache symlink test case (#11769)

Author: jerrykingxyz

tests/rspack-test/cacheCases/invalidation/lib-symlink/file.js

@@ -0,0 +1,3 @@
+export default 1;
+---
+export default 2;

tests/rspack-test/cacheCases/invalidation/lib-symlink/index.js

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+import { version } from "tools";
+import value from "./file";
+
+it("should invalidation work when using lib symlink", async () => {
+	if (COMPILER_INDEX == 0) {
+		expect(value).toBe(1);
+		expect(version).toBe("1.0.0");
+		await NEXT_START();
+	}
+	if (COMPILER_INDEX == 1) {
+		expect(value).toBe(1);
+		expect(version).toBe("2.0.0");
+	}
+});

tests/rspack-test/cacheCases/invalidation/lib-symlink/libs/tools_v1/index.js

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+export const version = "1.0.0";

tests/rspack-test/cacheCases/invalidation/lib-symlink/libs/tools_v1/package.json

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+{
+  "version": "1.0.0",
+  "main": "./index.js"
+}

tests/rspack-test/cacheCases/invalidation/lib-symlink/libs/tools_v2/index.js

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+export const version = "2.0.0";

tests/rspack-test/cacheCases/invalidation/lib-symlink/libs/tools_v2/package.json

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+{
+  "version": "2.0.0",
+  "main": "./index.js"
+}

tests/rspack-test/cacheCases/invalidation/lib-symlink/rspack.config.js

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+const path = require("path");
+const fs = require("fs");
+const fsPromise = require("fs/promises");
+
+let index = 1;
+const nodeModulesPath = path.join(__dirname, "./node_modules");
+const toolsV1 = path.join(__dirname, "libs/tools_v1");
+const toolsV2 = path.join(__dirname, "libs/tools_v2");
+const libLinkedPath = path.join(nodeModulesPath, "tools");
+
+/** @type {import("@rspack/core").Configuration} */
+module.exports = {
+	context: __dirname,
+	experiments: {
+		cache: {
+			type: "persistent",
+			snapshot: {
+				immutablePaths: [path.join(__dirname, "./file.js")],
+				managedPaths: [path.join(__dirname, "./libs"), /node_modules/]
+			}
+		}
+	},
+	plugins: [
+		{
+			apply(compiler) {
+				// make sure the node_modules dir exist
+				fs.mkdirSync(nodeModulesPath, { recursive: true });
+				compiler.hooks.beforeCompile.tapPromise(
+					"Test Plugin",
+					async function () {
+						if (index === 1) {
+							await fsPromise.symlink(toolsV1, libLinkedPath);
+						} else {
+							await fsPromise.unlink(libLinkedPath);
+							await fsPromise.symlink(toolsV2, libLinkedPath);
+						}
+						index++;
+					}
+				);
+			}
+		}
+	]
+};