diff --git a/pkg/vm_service/test/http_invocations/http_auth_get_isolate_rpc_test.dart b/pkg/vm_service/test/http_invocations/http_auth_get_isolate_rpc_test.dart
index 2c59abc..ab50464 100644
--- a/pkg/vm_service/test/http_invocations/http_auth_get_isolate_rpc_test.dart
+++ b/pkg/vm_service/test/http_invocations/http_auth_get_isolate_rpc_test.dart
@@ -7,7 +7,6 @@
 
 void main([args = const <String>[]]) => runIsolateTests(
       args,
-      tests,
+      httpGetIsolateRpcTests,
       'http_auth_get_isolate_rpc_test.dart',
-      testeeBefore: testeeBefore,
     );
diff --git a/pkg/vm_service/test/http_invocations/http_get_isolate_rpc_common.dart b/pkg/vm_service/test/http_invocations/http_get_isolate_rpc_common.dart
index aba91bd..4bff279 100644
--- a/pkg/vm_service/test/http_invocations/http_get_isolate_rpc_common.dart
+++ b/pkg/vm_service/test/http_invocations/http_get_isolate_rpc_common.dart
@@ -10,7 +10,7 @@
 import '../common/service_test_common.dart';
 import 'http_request_helpers.dart';
 
-Future<String> getIsolateId(Uri serverUri) async {
+Future<String> _getIsolateId(Uri serverUri) async {
   final result = await makeHttpServiceRequest(
     serverUri: serverUri,
     method: 'getVM',
@@ -18,46 +18,41 @@
   return result['isolates'][0]['id'] as String;
 }
 
-Future<void> testeeBefore() async {
-  final info = await waitForServiceInfo();
-  final serverUri = info.serverUri!;
-
-  try {
-    // Build the request.
-    final params = <String, String>{
-      'isolateId': await getIsolateId(serverUri),
-    };
-
-    final result = createServiceObject(
-      await makeHttpServiceRequest(
-        serverUri: serverUri,
-        method: 'getIsolate',
-        params: params,
-      ),
-      ['Isolate'],
-    )! as Isolate;
-    Expect.isTrue(result.id!.startsWith('isolates/'));
-    Expect.isNotNull(result.number);
-    Expect.equals(result.json!['_originNumber'], result.number);
-    Expect.isTrue(result.startTime! > 0);
-    Expect.isTrue(result.livePorts! > 0);
-    Expect.isFalse(result.pauseOnExit);
-    Expect.isNotNull(result.pauseEvent);
-    Expect.isNull(result.error);
-    Expect.isNotNull(result.rootLib);
-    Expect.isTrue(result.libraries!.isNotEmpty);
-    Expect.isTrue(result.breakpoints!.isEmpty);
-    Expect.equals(result.json!['_heaps']['new']['type'], 'HeapSpace');
-    Expect.equals(result.json!['_heaps']['old']['type'], 'HeapSpace');
-    Expect.equals(result.json!['isolate_group']['type'], '@IsolateGroup');
-  } catch (e) {
-    Expect.fail('invalid request: $e');
-  }
-}
-
-final tests = <IsolateTest>[
+final httpGetIsolateRpcTests = <IsolateTest>[
   (VmService service, IsolateRef isolateRef) async {
-    // Just getting here means that the testee enabled the service protocol
-    // web server.
-  }
+    final wsUri = Uri.parse(service.wsUri!);
+    final serverUri = Uri.parse('http://${wsUri.authority}');
+
+    try {
+      // Build the request.
+      final params = <String, String>{
+        'isolateId': await _getIsolateId(serverUri),
+      };
+
+      final result = createServiceObject(
+        await makeHttpServiceRequest(
+          serverUri: serverUri,
+          method: 'getIsolate',
+          params: params,
+        ),
+        ['Isolate'],
+      )! as Isolate;
+      Expect.isTrue(result.id!.startsWith('isolates/'));
+      Expect.isNotNull(result.number);
+      Expect.equals(result.json!['_originNumber'], result.number);
+      Expect.isTrue(result.startTime! > 0);
+      Expect.isTrue(result.livePorts! > 0);
+      Expect.isFalse(result.pauseOnExit);
+      Expect.isNotNull(result.pauseEvent);
+      Expect.isNull(result.error);
+      Expect.isNotNull(result.rootLib);
+      Expect.isTrue(result.libraries!.isNotEmpty);
+      Expect.isTrue(result.breakpoints!.isEmpty);
+      Expect.equals(result.json!['_heaps']['new']['type'], 'HeapSpace');
+      Expect.equals(result.json!['_heaps']['old']['type'], 'HeapSpace');
+      Expect.equals(result.json!['isolate_group']['type'], '@IsolateGroup');
+    } catch (e) {
+      Expect.fail('invalid request: $e');
+    }
+  },
 ];
diff --git a/pkg/vm_service/test/http_invocations/http_get_isolate_rpc_test.dart b/pkg/vm_service/test/http_invocations/http_get_isolate_rpc_test.dart
index fb6782e..07dd86d 100644
--- a/pkg/vm_service/test/http_invocations/http_get_isolate_rpc_test.dart
+++ b/pkg/vm_service/test/http_invocations/http_get_isolate_rpc_test.dart
@@ -7,8 +7,7 @@
 
 void main([args = const <String>[]]) => runIsolateTests(
       args,
-      tests,
+      httpGetIsolateRpcTests,
       'http_get_isolate_rpc_test.dart',
-      testeeBefore: testeeBefore,
       useAuthToken: false,
     );