added eu test

packages/node/src/local/cohort/poller.ts

@@ -74,6 +74,7 @@ export class CohortPoller implements CohortUpdater {
     }
     if (changed) {
       this.storage.replaceAll(updatedCohorts);
+      this.logger.debug('[Experiment] cohort updated');
     }
 
     if (onChange && changed) {

packages/node/test/local/client.eu.test.ts

@@ -0,0 +1,70 @@
+import path from 'path';
+
+import * as dotenv from 'dotenv';
+import { Experiment } from 'src/factory';
+
+dotenv.config({ path: path.join(__dirname, '../../', '.env') });
+
+if (!process.env['API_KEY'] && !process.env['SECRET_KEY']) {
+  throw new Error(
+    'No env vars found. If running on local, have you created .env file correct environment variables? Checkout README.md',
+  );
+}
+
+// Simple EU test for connectivity.
+const apiKey = 'server-Qlp7XiSu6JtP2S3JzA95PnP27duZgQCF';
+
+const client = Experiment.initializeLocal(apiKey, {
+  serverZone: 'eu',
+  cohortConfig: {
+    apiKey: process.env['EU_API_KEY'],
+    secretKey: process.env['EU_SECRET_KEY'],
+  },
+});
+
+beforeAll(async () => {
+  await client.start();
+});
+
+afterAll(async () => {
+  client.stop();
+});
+
+test('ExperimentClient.evaluate all flags, success', async () => {
+  const variants = await client.evaluate({
+    user_id: 'test_user',
+  });
+  const variant = variants['sdk-local-evaluation-userid'];
+  expect(variant.key).toEqual('on');
+  expect(variant.value).toEqual('on');
+});
+
+// Evaluate V2
+
+test('ExperimentClient.evaluateV2 all flags, success', async () => {
+  const variants = await client.evaluateV2({
+    user_id: 'test_user',
+  });
+  const variant = variants['sdk-local-evaluation-userid'];
+  expect(variant.key).toEqual('on');
+  expect(variant.value).toEqual('on');
+});
+
+test('ExperimentClient.evaluateV2 cohort, targeted', async () => {
+  const variants = await client.evaluateV2({
+    device_id: '0',
+    user_id: '1',
+  });
+  const variant = variants['sdk-local-evaluation-user-cohort'];
+  expect(variant.key).toEqual('on');
+  expect(variant.value).toEqual('on');
+});
+
+test('ExperimentClient.evaluateV2 cohort, not targeted', async () => {
+  const variants = await client.evaluateV2({
+    user_id: '666',
+  });
+  const variant = variants['sdk-local-evaluation-user-cohort'];
+  expect(variant.key).toEqual('off');
+  expect(variant.value).toBeUndefined();
+});