test: resolver cases (#1196)

Author: jbroma

apps/tester-app/package.json

@@ -57,7 +57,7 @@
     "tailwindcss": "^3.4.17",
     "terser-webpack-plugin": "catalog:",
     "typescript": "catalog:",
-    "vitest": "^2.0.5",
+    "vitest": "catalog:",
     "webpack": "catalog:"
   }
 }

pnpm-lock.yaml

@@ -14,6 +14,7 @@ catalog:
   "webpack": ^5.99.5
   "react": "19.0.0"
   "react-native": "0.79.1"
+  "vitest": ^2.0.5
 
 catalogs:
   testers:

pnpm-workspace.yaml

@@ -0,0 +1,38 @@
+# resolver-cases-test
+
+## Description
+
+`resolver-cases-test` is a package that tests Repack's module resolution logic using `enhanced-resolve`. It validates various edge cases and scenarios from the React Native ecosystem using JSON fixtures to define package structures.
+
+## Fixture-Based Approach
+
+Tests use JSON fixtures in `src/__fixtures__/` to define package structures:
+
+```json
+{
+  "package.json": {
+    "name": "my-package",
+    "exports": {
+      ".": {
+        "react-native": "./native.js",
+        "default": "./web.js"
+      }
+    }
+  },
+  "files": ["native.js", "web.js"]
+}
+```
+
+## Usage
+
+```ts
+import { setupTestEnvironment } from "../test-helpers.js";
+
+const { resolve } = await setupTestEnvironment(["platforms"], {
+  platform: "ios",
+  enablePackageExports: true,
+});
+
+const result = await resolve("platform-specific-lib");
+expect(result).toBe("/node_modules/platform-specific-lib/index.ios.js");
+```