diff --git a/test/integration/use_build_context_synchronously.dart b/test/integration/use_build_context_synchronously.dart
deleted file mode 100644
index 327a57e50f9d..000000000000
--- a/test/integration/use_build_context_synchronously.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:analyzer/src/lint/io.dart';
-import 'package:analyzer/src/lint/linter.dart';
-import 'package:analyzer/src/utilities/legacy.dart';
-import 'package:linter/src/analyzer.dart';
-import 'package:linter/src/cli.dart' as cli;
-import 'package:test/test.dart';
-
-import '../mocks.dart';
-import '../test_constants.dart';
-
-void main() {
-  group('use_build_context_synchronously', () {
-    var currentOut = outSink;
-    var collectingOut = CollectingSink();
-    setUp(() {
-      noSoundNullSafety = false;
-      return outSink = collectingOut;
-    });
-    tearDown(() {
-      noSoundNullSafety = true;
-      collectingOut.buffer.clear();
-      outSink = currentOut;
-    });
-    //https://github.com/dart-lang/linter/issues/2572
-    test('mixed_mode', () async {
-      await cli.runLinter([
-        '$integrationTestDir/use_build_context_synchronously/lib/unmigrated.dart',
-        '--rules=use_build_context_synchronously',
-      ], LinterOptions());
-      var out = collectingOut.trim();
-      expect(out, contains('1 file analyzed, 1 issue found'));
-      expect(out, contains('22:3'));
-    });
-  });
-}
diff --git a/test/integration_test.dart b/test/integration_test.dart
index baee4023a63b..5973c114133e 100644
--- a/test/integration_test.dart
+++ b/test/integration_test.dart
@@ -18,8 +18,6 @@ import 'integration/avoid_web_libraries_in_flutter.dart'
     as avoid_web_libraries_in_flutter;
 import 'integration/close_sinks.dart' as close_sinks;
 import 'integration/public_member_api_docs.dart' as public_member_api_docs;
-import 'integration/use_build_context_synchronously.dart'
-    as use_build_context_synchronously;
 import 'mocks.dart';
 import 'test_constants.dart';
 
@@ -128,7 +126,6 @@ void ruleTests() {
     avoid_web_libraries_in_flutter.main();
     close_sinks.main();
     public_member_api_docs.main();
-    use_build_context_synchronously.main();
   });
 }
 
diff --git a/test/rules/use_build_context_synchronously_test.dart b/test/rules/use_build_context_synchronously_test.dart
index 977169fbf64b..fc3abb1fc86f 100644
--- a/test/rules/use_build_context_synchronously_test.dart
+++ b/test/rules/use_build_context_synchronously_test.dart
@@ -4,6 +4,7 @@
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/src/test_utilities/find_node.dart';
+import 'package:analyzer/src/utilities/legacy.dart';
 import 'package:linter/src/rules/use_build_context_synchronously.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
@@ -14,6 +15,7 @@ main() {
   defineReflectiveSuite(() {
     defineReflectiveTests(AsyncStateTest);
     defineReflectiveTests(UseBuildContextSynchronouslyTest);
+    defineReflectiveTests(UseBuildContextSynchronouslyMixedModeTest);
   });
 }
 
@@ -1630,6 +1632,52 @@ void foo(BuildContext context) async {
   }
 }
 
+@reflectiveTest
+class UseBuildContextSynchronouslyMixedModeTest extends LintRuleTest {
+  @override
+  bool get addFlutterPackageDep => true;
+
+  @override
+  String get lintRule => 'use_build_context_synchronously';
+
+  /// Ensure we're not run in the test dir.
+  @override
+  String get testPackageRootPath => '$workspaceRootPath/lib';
+
+  @override
+  setUp() {
+    super.setUp();
+    noSoundNullSafety = false;
+  }
+
+  tearDown() {
+    noSoundNullSafety = true;
+  }
+
+  /// https://github.com/dart-lang/linter/issues/2572
+  test_mixedMode() async {
+    newFile('$testPackageLibPath/migrated.dart', '''
+import 'package:flutter/widgets.dart';
+
+BuildContext? get contextOrNull => null;
+
+void f(BuildContext? contextOrNull) {}
+''');
+
+    await assertNoDiagnostics(r'''
+// @dart=2.9
+
+import 'migrated.dart';
+
+void nullableContext() async {
+  f(contextOrNull);
+  await Future<void>.delayed(Duration());
+  f(contextOrNull);
+}
+''');
+  }
+}
+
 @reflectiveTest
 class UseBuildContextSynchronouslyTest extends LintRuleTest {
   @override
diff --git a/test_data/integration/use_build_context_synchronously/.dart_tool/package_config.json b/test_data/integration/use_build_context_synchronously/.dart_tool/package_config.json
deleted file mode 100644
index 6a297fb9340f..000000000000
--- a/test_data/integration/use_build_context_synchronously/.dart_tool/package_config.json
+++ /dev/null
@@ -1,14 +0,0 @@
-{
-  "configVersion": 2,
-  "packages": [
-    {
-      "name": "flutter",
-      "rootUri": "../../../mock_packages/flutter/",
-      "packageUri": "lib/",
-      "languageVersion": "2.17"
-    }
-  ],
-  "generated": "2022-06-30T01:27:31.576781Z",
-  "generator": "pub",
-  "generatorVersion": "2.17.0"
-}
diff --git a/test_data/integration/use_build_context_synchronously/analysis_options.yaml b/test_data/integration/use_build_context_synchronously/analysis_options.yaml
deleted file mode 100644
index c82119aee997..000000000000
--- a/test_data/integration/use_build_context_synchronously/analysis_options.yaml
+++ /dev/null
@@ -1,3 +0,0 @@
-linter:
-  rules:
-    - use_build_context_synchronously
diff --git a/test_data/integration/use_build_context_synchronously/lib/migrated.dart b/test_data/integration/use_build_context_synchronously/lib/migrated.dart
deleted file mode 100644
index 4ad51cc51216..000000000000
--- a/test_data/integration/use_build_context_synchronously/lib/migrated.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:flutter/widgets.dart';
-
-BuildContext? get contextOrNull => null;
-
-void f(BuildContext? contextOrNull) {}
diff --git a/test_data/integration/use_build_context_synchronously/lib/unmigrated.dart b/test_data/integration/use_build_context_synchronously/lib/unmigrated.dart
deleted file mode 100644
index 7c83ad1adfb7..000000000000
--- a/test_data/integration/use_build_context_synchronously/lib/unmigrated.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-import 'package:flutter/foundation.dart';
-import 'package:flutter/widgets.dart';
-
-import 'migrated.dart';
-
-void nullableContext() async {
-  f(contextOrNull);
-  await Future<void>.delayed(Duration());
-  f(contextOrNull); // OK
-}
-
-void topLevel(BuildContext context) async {
-  Navigator.of(context).pushNamed('routeName'); // OK
-
-  await Future<void>.delayed(Duration());
-  Navigator.of(context).pushNamed('routeName'); // LINT
-}
-
-void anonymousFunction(BuildContext context) async {
-  final anon = () async {
-    await Future<void>.delayed(Duration(seconds: 1));
-  };
-  await Navigator.of(context).pushNamed('routeName'); // OK
-}
-
-void anonymousExpressionFunction(BuildContext context) async {
-  final anon = () async => await Future<void>.delayed(Duration());
-  await Navigator.of(context).pushNamed('routeName'); // OK
-}
-
-void widgetCallbacks(BuildContext context) async {
-  final widget = _Button(
-    onTap: () async {
-      await Future<void>.delayed(Duration());
-    },
-  );
-  // Build complex widget piece by piece...
-  f(context); // OK
-}
-
-class _Button extends StatelessWidget {
-  const _Button({Key key, this.onTap}) : super(key: key);
-
-  final VoidCallback onTap;
-
-  @override
-  Widget build(BuildContext context) {
-    return Container();
-  }
-}
\ No newline at end of file
diff --git a/test_data/integration/use_build_context_synchronously/pubspec.yaml b/test_data/integration/use_build_context_synchronously/pubspec.yaml
deleted file mode 100644
index 24725f38276c..000000000000
--- a/test_data/integration/use_build_context_synchronously/pubspec.yaml
+++ /dev/null
@@ -1,8 +0,0 @@
-name: use_build_context_synchronously
-
-environment:
-  sdk: '>=2.13.0-0 <3.0.0'
-
-dependency_overrides:
-  flutter:
-    path: ../../../test/mock_packages/flutter