[flutter_tools] remove mocks from simcontrol and context (#81433)

packages/flutter_tools/test/src/context.dart

@@ -36,7 +36,6 @@ import 'package:flutter_tools/src/reporting/crash_reporting.dart';
 import 'package:flutter_tools/src/reporting/reporting.dart';
 import 'package:flutter_tools/src/version.dart';
 import 'package:meta/meta.dart';
-import 'package:mockito/mockito.dart';
 
 import 'common.dart';
 import 'fake_http_client.dart';
@@ -113,11 +112,7 @@ void testUsingContext(
           Doctor: () => FakeDoctor(globals.logger),
           FlutterVersion: () => FakeFlutterVersion(),
           HttpClient: () => FakeHttpClient.any(),
-          IOSSimulatorUtils: () {
-            final MockIOSSimulatorUtils mock = MockIOSSimulatorUtils();
-            when(mock.getAttachedDevices()).thenAnswer((Invocation _) async => <IOSSimulator>[]);
-            return mock;
-          },
+          IOSSimulatorUtils: () => const NoopIOSSimulatorUtils(),
           OutputPreferences: () => OutputPreferences.test(),
           Logger: () => BufferLogger(
             terminal: globals.terminal,
@@ -125,14 +120,13 @@ void testUsingContext(
           ),
           OperatingSystemUtils: () => FakeOperatingSystemUtils(),
           PersistentToolState: () => buildPersistentToolState(globals.fs),
-          SimControl: () => MockSimControl(),
           Usage: () => TestUsage(),
           XcodeProjectInterpreter: () => FakeXcodeProjectInterpreter(),
           FileSystem: () => LocalFileSystemBlockingSetCurrentDirectory(),
           PlistParser: () => FakePlistParser(),
           Signals: () => FakeSignals(),
           Pub: () => ThrowingPub(), // prevent accidentally using pub.
-          CrashReporter: () => MockCrashReporter(),
+          CrashReporter: () => const NoopCrashReporter(),
           TemplateRenderer: () => const MustacheTemplateRenderer(),
         },
         body: () {
@@ -286,13 +280,12 @@ class FakeDoctor extends Doctor {
   }
 }
 
-class MockSimControl extends Mock implements SimControl {
-  MockSimControl() {
-    when(getConnectedDevices()).thenAnswer((Invocation _) async => <SimDevice>[]);
-  }
-}
+class NoopIOSSimulatorUtils implements IOSSimulatorUtils {
+  const NoopIOSSimulatorUtils();
 
-class MockIOSSimulatorUtils extends Mock implements IOSSimulatorUtils {}
+  @override
+  Future<List<IOSSimulator>> getAttachedDevices() async => <IOSSimulator>[];
+}
 
 class FakeXcodeProjectInterpreter implements XcodeProjectInterpreter {
   @override
@@ -332,7 +325,13 @@ class FakeXcodeProjectInterpreter implements XcodeProjectInterpreter {
   List<String> xcrunCommand() => <String>['xcrun'];
 }
 
-class MockCrashReporter extends Mock implements CrashReporter {}
+/// Prevent test crashest from being reported to the crash backend.
+class NoopCrashReporter implements CrashReporter {
+  const NoopCrashReporter();
+
+  @override
+  Future<void> informUser(CrashDetails details, File crashFile) async { }
+}
 
 class LocalFileSystemBlockingSetCurrentDirectory extends LocalFileSystem {
   LocalFileSystemBlockingSetCurrentDirectory() : super.test(