add integration test for router

Author: AbhiPrasad

packages/integration-tests/suites/tracing/browsertracing/source/test.ts

@@ -0,0 +1,17 @@
+import { expect } from '@playwright/test';
+import { Event } from '@sentry/types';
+
+import { sentryTest } from '../../../../utils/fixtures';
+import { getFirstSentryEnvelopeRequest } from '../../../../utils/helpers';
+
+sentryTest('transactions should contain transaction source', async ({ getLocalTestPath, page }) => {
+  const url = await getLocalTestPath({ testDir: __dirname });
+
+  const pageloadRequest = await getFirstSentryEnvelopeRequest<Event>(page, url);
+  const navigationRequest = await getFirstSentryEnvelopeRequest<Event>(page, `${url}#foo`);
+
+  expect(pageloadRequest).toEqual({});
+
+  expect(pageloadRequest.transaction_info?.source).toEqual('url');
+  expect(navigationRequest.transaction_info?.source).toEqual('url');
+});