diff --git a/packages/puppeteer-core/src/common/bidi/Connection.test.ts b/packages/puppeteer-core/src/common/bidi/Connection.test.ts
new file mode 100644
index 00000000000..35d9182dd8e
--- /dev/null
+++ b/packages/puppeteer-core/src/common/bidi/Connection.test.ts
@@ -0,0 +1,59 @@
+/**
+ * Copyright 2022 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import {describe, it} from 'node:test';
+
+import expect from 'expect';
+
+import {ConnectionTransport} from '../ConnectionTransport.js';
+
+import {Connection} from './Connection.js';
+
+describe('WebDriver BiDi Connection', () => {
+  class TestConnectionTransport implements ConnectionTransport {
+    sent: string[] = [];
+    closed = false;
+
+    send(message: string) {
+      this.sent.push(message);
+    }
+
+    close(): void {
+      this.closed = true;
+    }
+  }
+
+  it('should work', async () => {
+    const transport = new TestConnectionTransport();
+    const connection = new Connection('ws://127.0.0.1', transport);
+    const responsePromise = connection.send('session.new', {
+      capabilities: {},
+    });
+    expect(transport.sent).toEqual([
+      `{"id":1,"method":"session.new","params":{"capabilities":{}}}`,
+    ]);
+    const id = JSON.parse(transport.sent[0]!).id;
+    const rawResponse = {
+      id,
+      result: {ready: false, message: 'already connected'},
+    };
+    (transport as ConnectionTransport).onmessage?.(JSON.stringify(rawResponse));
+    const response = await responsePromise;
+    expect(response).toEqual(rawResponse);
+    connection.dispose();
+    expect(transport.closed).toBeTruthy();
+  });
+});
diff --git a/test/src/bidi/Connection.spec.ts b/test/src/bidi/Connection.spec.ts
deleted file mode 100644
index 2554f26e58c..00000000000
--- a/test/src/bidi/Connection.spec.ts
+++ /dev/null
@@ -1,59 +0,0 @@
-/**
- * Copyright 2022 Google Inc. All rights reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-import expect from 'expect';
-import {Connection} from 'puppeteer-core/internal/common/bidi/Connection.js';
-import {ConnectionTransport} from 'puppeteer-core/internal/common/ConnectionTransport.js';
-
-describe('WebDriver BiDi', () => {
-  describe('Connection', () => {
-    class TestConnectionTransport implements ConnectionTransport {
-      sent: string[] = [];
-      closed = false;
-
-      send(message: string) {
-        this.sent.push(message);
-      }
-
-      close(): void {
-        this.closed = true;
-      }
-    }
-
-    it('should work', async () => {
-      const transport = new TestConnectionTransport();
-      const connection = new Connection('ws://127.0.0.1', transport);
-      const responsePromise = connection.send('session.new', {
-        capabilities: {},
-      });
-      expect(transport.sent).toEqual([
-        `{"id":1,"method":"session.new","params":{"capabilities":{}}}`,
-      ]);
-      const id = JSON.parse(transport.sent[0]!).id;
-      const rawResponse = {
-        id,
-        result: {ready: false, message: 'already connected'},
-      };
-      (transport as ConnectionTransport).onmessage?.(
-        JSON.stringify(rawResponse)
-      );
-      const response = await responsePromise;
-      expect(response).toEqual(rawResponse);
-      connection.dispose();
-      expect(transport.closed).toBeTruthy();
-    });
-  });
-});