test(node): Add startTransaction integration tests(#4797)

Author: onurtemizkan

packages/node-integration-tests/suites/tracing/manual-tracing-unnamed-import/scenario.ts renamed to packages/node-integration-tests/suites/public-api/startTransaction/basic-usage/scenario.ts

@@ -1,4 +1,4 @@
-import { assertSentryTransaction, getEnvelopeRequest, runServer } from '../../../utils';
+import { assertSentryTransaction, getEnvelopeRequest, runServer } from '../../../../utils';
 
 test('should send a manually started transaction when @sentry/tracing is imported using unnamed import.', async () => {
   const url = await runServer(__dirname);

packages/node-integration-tests/suites/tracing/manual-tracing-unnamed-import/test.ts renamed to packages/node-integration-tests/suites/public-api/startTransaction/basic-usage/test.ts

@@ -0,0 +1,40 @@
+import '@sentry/tracing';
+
+import * as Sentry from '@sentry/node';
+
+Sentry.init({
+  dsn: 'https://[email protected]/1337',
+  release: '1.0',
+  tracesSampleRate: 1.0,
+});
+
+const transaction = Sentry.startTransaction({ name: 'test_transaction_1' });
+const span_1 = transaction.startChild({
+  op: 'span_1',
+  data: {
+    foo: 'bar',
+    baz: [1, 2, 3],
+  },
+});
+for (let i = 0; i < 2000; i++);
+
+// span_1 finishes
+span_1.finish();
+
+// span_2 doesn't finish
+transaction.startChild({ op: 'span_2' });
+for (let i = 0; i < 4000; i++);
+
+const span_3 = transaction.startChild({ op: 'span_3' });
+for (let i = 0; i < 4000; i++);
+
+// span_4 is the child of span_3 but doesn't finish.
+span_3.startChild({ op: 'span_4', data: { qux: 'quux' } });
+
+// span_5 is another child of span_3 but finishes.
+span_3.startChild({ op: 'span_5' }).finish();
+
+// span_3 also finishes
+span_3.finish();
+
+transaction.finish();

packages/node-integration-tests/suites/public-api/startTransaction/with-nested-spans/scenario.ts

@@ -0,0 +1,36 @@
+import { assertSentryTransaction, getEnvelopeRequest, runServer } from '../../../../utils';
+
+test('should report finished spans as children of the root transaction.', async () => {
+  const url = await runServer(__dirname);
+  const envelope = await getEnvelopeRequest(url);
+
+  expect(envelope).toHaveLength(3);
+
+  const rootSpanId = (envelope?.[2] as any)?.contexts?.trace?.span_id;
+  const span3Id = (envelope?.[2] as any)?.spans?.[1].span_id;
+
+  expect(rootSpanId).toEqual(expect.any(String));
+  expect(span3Id).toEqual(expect.any(String));
+
+  assertSentryTransaction(envelope[2], {
+    transaction: 'test_transaction_1',
+    spans: [
+      {
+        op: 'span_1',
+        data: {
+          foo: 'bar',
+          baz: [1, 2, 3],
+        },
+        parent_span_id: rootSpanId,
+      },
+      {
+        op: 'span_3',
+        parent_span_id: rootSpanId,
+      },
+      {
+        op: 'span_5',
+        parent_span_id: span3Id,
+      },
+    ],
+  });
+});