✅ 🐛 🚨 fix running tests when importing es modules

fix running tests when importing es modules ✅ Adding a test, 🐛 Bugfix, 🚨 Tests
TimMikeladze · Dec 29, 2022 · 877b604 · 877b604 · vercel · Dec 29, 2022
1 parent bfb9c41
commit 877b604
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diff --git a/__tests__/parseIp.test.ts b/__tests__/parseIp.test.ts
@@ -0,0 +1,17 @@
+import parseIp from '@/util/parseIp';
+
+describe(`parseIp`, () => {
+  it(`should parse ip from x-forwarded-for header`, () => {
+    expect(
+      parseIp({ headers: { [`x-forwarded-for`]: `192.168.1.1` } } as any),
+    ).toBe(`192.168.1.1`);
+  });
+  it(`should parse ip from req.socket.remoteAddress`, () => {
+    expect(parseIp({ socket: { remoteAddress: `192.168.1.1` } } as any)).toBe(
+      `192.168.1.1`,
+    );
+  });
+  if (`should return null ip is ::1`) {
+    expect(parseIp({ socket: { remoteAddress: `::1` } } as any)).toBeNull();
+  }
+});
diff --git a/jest.config.js b/jest.config.js
@@ -12,10 +12,12 @@ module.exports = {
   moduleNameMapper: pathsToModuleNameMapper(compilerOptions.paths, {
     prefix: '<rootDir>/',
   }),
+  extensionsToTreatAsEsm: ['.ts'],
   transform: {
     '^.+\\.tsx?$': [
       'ts-jest',
       {
+        isolatedModules: true,
         useESM: true,
       },
     ],