terminal_handler_test.dart 51 KB
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// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'dart:async';
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import 'package:file/file.dart';
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import 'package:file/memory.dart';
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import 'package:file_testing/file_testing.dart';
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import 'package:flutter_tools/src/base/io.dart';
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import 'package:flutter_tools/src/base/logger.dart';
import 'package:flutter_tools/src/base/signals.dart';
import 'package:flutter_tools/src/base/terminal.dart';
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import 'package:flutter_tools/src/build_info.dart';
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import 'package:flutter_tools/src/build_system/targets/shader_compiler.dart';
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import 'package:flutter_tools/src/compile.dart';
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import 'package:flutter_tools/src/convert.dart';
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import 'package:flutter_tools/src/devfs.dart';
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import 'package:flutter_tools/src/device.dart';
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import 'package:flutter_tools/src/resident_devtools_handler.dart';
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import 'package:flutter_tools/src/resident_runner.dart';
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import 'package:flutter_tools/src/vmservice.dart';
import 'package:test/fake.dart';
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import 'package:vm_service/vm_service.dart' as vm_service;
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import '../src/common.dart';
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import '../src/fake_vm_services.dart';

final vm_service.Isolate fakeUnpausedIsolate = vm_service.Isolate(
  id: '1',
  pauseEvent: vm_service.Event(
    kind: vm_service.EventKind.kResume,
    timestamp: 0
  ),
  breakpoints: <vm_service.Breakpoint>[],
  extensionRPCs: <String>[],
  libraries: <vm_service.LibraryRef>[
    vm_service.LibraryRef(
      id: '1',
      uri: 'file:///hello_world/main.dart',
      name: '',
    ),
  ],
  livePorts: 0,
  name: 'test',
  number: '1',
  pauseOnExit: false,
  runnable: true,
  startTime: 0,
  isSystemIsolate: false,
  isolateFlags: <vm_service.IsolateFlag>[],
);

final FlutterView fakeFlutterView = FlutterView(
  id: 'a',
  uiIsolate: fakeUnpausedIsolate,
);

final FakeVmServiceRequest listViews = FakeVmServiceRequest(
  method: kListViewsMethod,
  jsonResponse: <String, Object>{
    'views': <Object>[
      fakeFlutterView.toJson(),
    ],
  },
);

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void main() {
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  testWithoutContext('keyboard input handling single help character', () async {
    final TestRunner testRunner = TestRunner();
    final Logger logger = BufferLogger.test();
    final Signals signals = Signals.test();
    final Terminal terminal = Terminal.test();
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    final MemoryFileSystem fs = MemoryFileSystem.test();
    final ProcessInfo processInfo = ProcessInfo.test(fs);
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    final TerminalHandler terminalHandler = TerminalHandler(
      testRunner,
      logger: logger,
      signals: signals,
      terminal: terminal,
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      processInfo: processInfo,
      reportReady: false,
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    );

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    expect(testRunner.hasHelpBeenPrinted, false);
    await terminalHandler.processTerminalInput('h');
    expect(testRunner.hasHelpBeenPrinted, true);
  });
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  testWithoutContext('keyboard input handling help character surrounded with newlines', () async {
    final TestRunner testRunner = TestRunner();
    final Logger logger = BufferLogger.test();
    final Signals signals = Signals.test();
    final Terminal terminal = Terminal.test();
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    final MemoryFileSystem fs = MemoryFileSystem.test();
    final ProcessInfo processInfo = ProcessInfo.test(fs);
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    final TerminalHandler terminalHandler = TerminalHandler(
      testRunner,
      logger: logger,
      signals: signals,
      terminal: terminal,
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      processInfo: processInfo,
      reportReady: false,
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    );

    expect(testRunner.hasHelpBeenPrinted, false);
    await terminalHandler.processTerminalInput('\nh\n');
    expect(testRunner.hasHelpBeenPrinted, true);
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  });

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  group('keycode verification, brought to you by the letter', () {
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    testWithoutContext('a, can handle trailing newlines', () async {
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      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], supportsServiceProtocol: false);
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      await terminalHandler.processTerminalInput('a\n');

      expect(terminalHandler.lastReceivedCommand, 'a');
    });

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    testWithoutContext('n, can handle trailing only newlines', () async {
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      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[]);
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      await terminalHandler.processTerminalInput('\n\n');

      expect(terminalHandler.lastReceivedCommand, '');
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    });

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    testWithoutContext('a - debugToggleProfileWidgetBuilds', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.profileWidgetBuilds',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
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            'enabled': 'false',
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          },
         ),
        const FakeVmServiceRequest(
          method: 'ext.flutter.profileWidgetBuilds',
          args: <String, Object>{
            'isolateId': '1',
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            'enabled': 'true',
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          },
          jsonResponse: <String, Object>{
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            'enabled': 'true',
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          },
        ),
      ]);
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      await terminalHandler.processTerminalInput('a');
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    });

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    testWithoutContext('a - debugToggleProfileWidgetBuilds with web target', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
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        listViews,
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        const FakeVmServiceRequest(
          method: 'ext.flutter.profileWidgetBuilds',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
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            'enabled': 'false',
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          },
        ),
        const FakeVmServiceRequest(
          method: 'ext.flutter.profileWidgetBuilds',
          args: <String, Object>{
            'isolateId': '1',
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            'enabled': 'true',
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          },
          jsonResponse: <String, Object>{
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            'enabled': 'true',
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          },
        ),
      ], web: true);

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      await terminalHandler.processTerminalInput('a');
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    });

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    testWithoutContext('j unsupported jank metrics for web', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], web: true);
      await terminalHandler.processTerminalInput('j');
      expect(terminalHandler.logger.warningText.contains('Unable to get jank metrics for web'), true);
    });

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    testWithoutContext('a - debugToggleProfileWidgetBuilds without service protocol is skipped', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], supportsServiceProtocol: false);
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      await terminalHandler.processTerminalInput('a');
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    });

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    testWithoutContext('b - debugToggleBrightness', () async {
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      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.brightnessOverride',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
            'value': 'Brightness.light',
          }
        ),
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.brightnessOverride',
          args: <String, Object>{
            'isolateId': '1',
            'value': 'Brightness.dark',
          },
          jsonResponse: <String, Object>{
            'value': 'Brightness.dark',
          }
        ),
      ]);
      await terminalHandler.processTerminalInput('b');

      expect(terminalHandler.logger.statusText, contains('Changed brightness to Brightness.dark'));
    });

    testWithoutContext('b - debugToggleBrightness with web target', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
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        listViews,
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        const FakeVmServiceRequest(
          method: 'ext.flutter.brightnessOverride',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
            'value': 'Brightness.light',
          }
        ),
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        listViews,
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        const FakeVmServiceRequest(
          method: 'ext.flutter.brightnessOverride',
          args: <String, Object>{
            'isolateId': '1',
            'value': 'Brightness.dark',
          },
          jsonResponse: <String, Object>{
            'value': 'Brightness.dark',
          }
        ),
      ], web: true);
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      await terminalHandler.processTerminalInput('b');
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      expect(terminalHandler.logger.statusText, contains('Changed brightness to Brightness.dark'));
    });

    testWithoutContext('b - debugToggleBrightness without service protocol is skipped', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], supportsServiceProtocol: false);

      await terminalHandler.processTerminalInput('b');
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    });

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    testWithoutContext('d,D - detach', () async {
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      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[]);
      final FakeResidentRunner runner = terminalHandler.residentRunner as FakeResidentRunner;
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      await terminalHandler.processTerminalInput('d');
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      expect(runner.calledDetach, true);
      runner.calledDetach = false;

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      await terminalHandler.processTerminalInput('D');

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      expect(runner.calledDetach, true);
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    });

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    testWithoutContext('h,H,? - printHelp', () async {
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      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[]);
      final FakeResidentRunner runner = terminalHandler.residentRunner as FakeResidentRunner;
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      await terminalHandler.processTerminalInput('h');
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      expect(runner.calledPrintWithDetails, true);
      runner.calledPrintWithDetails = false;

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      await terminalHandler.processTerminalInput('H');
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      expect(runner.calledPrintWithDetails, true);
      runner.calledPrintWithDetails = false;

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      await terminalHandler.processTerminalInput('?');

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      expect(runner.calledPrintWithDetails, true);
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    });
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    testWithoutContext('i - debugToggleWidgetInspector', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.inspector.show',
          args: <String, Object>{
            'isolateId': '1',
          },
        ),
      ]);

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      await terminalHandler.processTerminalInput('i');
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    });

    testWithoutContext('i - debugToggleWidgetInspector with web target', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
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        listViews,
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        const FakeVmServiceRequest(
          method: 'ext.flutter.inspector.show',
          args: <String, Object>{
            'isolateId': '1',
          },
        ),
      ], web: true);
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      await terminalHandler.processTerminalInput('i');
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    });

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    testWithoutContext('i - debugToggleWidgetInspector without service protocol is skipped', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], supportsServiceProtocol: false);
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      await terminalHandler.processTerminalInput('i');
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    });

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    testWithoutContext('I - debugToggleInvertOversizedImages', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.invertOversizedImages',
          args: <String, Object>{
            'isolateId': '1',
          },
        ),
      ]);
      await terminalHandler.processTerminalInput('I');
    });
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    testWithoutContext('I - debugToggleInvertOversizedImages with web target', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
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        listViews,
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        const FakeVmServiceRequest(
          method: 'ext.flutter.invertOversizedImages',
          args: <String, Object>{
            'isolateId': '1',
          },
        ),
      ], web: true);
      await terminalHandler.processTerminalInput('I');
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    });

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    testWithoutContext('I - debugToggleInvertOversizedImages without service protocol is skipped', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], supportsServiceProtocol: false);
      await terminalHandler.processTerminalInput('I');
    });
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    testWithoutContext('I - debugToggleInvertOversizedImages in profile mode is skipped', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], buildMode: BuildMode.profile);
      await terminalHandler.processTerminalInput('I');
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    });

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    testWithoutContext('L - debugDumpLayerTree', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.debugDumpLayerTree',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
            'data': 'LAYER TREE',
          }
        ),
      ]);
      await terminalHandler.processTerminalInput('L');
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      expect(terminalHandler.logger.statusText, contains('LAYER TREE'));
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    });

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    testWithoutContext('L - debugDumpLayerTree with web target', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
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        listViews,
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        const FakeVmServiceRequest(
          method: 'ext.flutter.debugDumpLayerTree',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
            'data': 'LAYER TREE',
          }
        ),
      ], web: true);
      await terminalHandler.processTerminalInput('L');
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      expect(terminalHandler.logger.statusText, contains('LAYER TREE'));
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    });

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    testWithoutContext('L - debugDumpLayerTree with service protocol and profile mode is skipped', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], buildMode: BuildMode.profile);
      await terminalHandler.processTerminalInput('L');
    });
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    testWithoutContext('L - debugDumpLayerTree without service protocol is skipped', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], supportsServiceProtocol: false);
      await terminalHandler.processTerminalInput('L');
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    });

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    testWithoutContext('f - debugDumpFocusTree', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.debugDumpFocusTree',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
            'data': 'FOCUS TREE',
          }
        ),
      ]);
      await terminalHandler.processTerminalInput('f');

      expect(terminalHandler.logger.statusText, contains('FOCUS TREE'));
    });

    testWithoutContext('f - debugDumpLayerTree with web target', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.debugDumpFocusTree',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
            'data': 'FOCUS TREE',
          }
        ),
      ], web: true);
      await terminalHandler.processTerminalInput('f');

      expect(terminalHandler.logger.statusText, contains('FOCUS TREE'));
    });

    testWithoutContext('f - debugDumpFocusTree with service protocol and profile mode is skipped', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], buildMode: BuildMode.profile);
      await terminalHandler.processTerminalInput('f');
    });

    testWithoutContext('f - debugDumpFocusTree without service protocol is skipped', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], supportsServiceProtocol: false);
      await terminalHandler.processTerminalInput('f');
    });

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    testWithoutContext('o,O - debugTogglePlatform', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
        // Request 1.
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.platformOverride',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
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            'value': 'iOS',
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          },
        ),
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.platformOverride',
          args: <String, Object>{
            'isolateId': '1',
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            'value': 'windows',
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          },
          jsonResponse: <String, Object>{
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            'value': 'windows',
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          },
        ),
        // Request 2.
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.platformOverride',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
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            'value': 'android',
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          },
        ),
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.platformOverride',
          args: <String, Object>{
            'isolateId': '1',
            'value': 'iOS',
          },
          jsonResponse: <String, Object>{
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            'value': 'iOS',
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          },
        ),
      ]);
      await terminalHandler.processTerminalInput('o');
      await terminalHandler.processTerminalInput('O');
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      expect(terminalHandler.logger.statusText, contains('Switched operating system to windows'));
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      expect(terminalHandler.logger.statusText, contains('Switched operating system to iOS'));
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    });

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    testWithoutContext('o,O - debugTogglePlatform with web target', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
        // Request 1.
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        listViews,
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        const FakeVmServiceRequest(
          method: 'ext.flutter.platformOverride',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
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            'value': 'iOS',
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          },
        ),
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        listViews,
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        const FakeVmServiceRequest(
          method: 'ext.flutter.platformOverride',
          args: <String, Object>{
            'isolateId': '1',
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            'value': 'windows',
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          },
          jsonResponse: <String, Object>{
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            'value': 'windows',
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          },
        ),
        // Request 2.
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        listViews,
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        const FakeVmServiceRequest(
          method: 'ext.flutter.platformOverride',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
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            'value': 'android',
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          },
        ),
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        listViews,
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        const FakeVmServiceRequest(
          method: 'ext.flutter.platformOverride',
          args: <String, Object>{
            'isolateId': '1',
            'value': 'iOS',
          },
          jsonResponse: <String, Object>{
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            'value': 'iOS',
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          },
        ),
      ], web: true);
      await terminalHandler.processTerminalInput('o');
      await terminalHandler.processTerminalInput('O');
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      expect(terminalHandler.logger.statusText, contains('Switched operating system to windows'));
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      expect(terminalHandler.logger.statusText, contains('Switched operating system to iOS'));
    });
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    testWithoutContext('o,O - debugTogglePlatform without service protocol is skipped', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], supportsServiceProtocol: false);
      await terminalHandler.processTerminalInput('o');
      await terminalHandler.processTerminalInput('O');
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    });

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    testWithoutContext('p - debugToggleDebugPaintSizeEnabled', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.debugPaint',
          args: <String, Object>{
            'isolateId': '1',
          },
        ),
      ]);
      await terminalHandler.processTerminalInput('p');
    });
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    testWithoutContext('p - debugToggleDebugPaintSizeEnabled with web target', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
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        listViews,
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        const FakeVmServiceRequest(
          method: 'ext.flutter.debugPaint',
          args: <String, Object>{
            'isolateId': '1',
          },
        ),
      ], web: true);
      await terminalHandler.processTerminalInput('p');
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    });

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    testWithoutContext('p - debugToggleDebugPaintSizeEnabled without service protocol is skipped', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], supportsServiceProtocol: false);
      await terminalHandler.processTerminalInput('p');
    });
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    testWithoutContext('P - debugTogglePerformanceOverlayOverride', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.showPerformanceOverlay',
          args: <String, Object>{
            'isolateId': '1',
          },
        ),
      ]);
      await terminalHandler.processTerminalInput('P');
    });
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    testWithoutContext('P - debugTogglePerformanceOverlayOverride with web target is skipped ', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], web: true);
      await terminalHandler.processTerminalInput('P');
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    });

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    testWithoutContext('P - debugTogglePerformanceOverlayOverride without service protocol is skipped ', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], supportsServiceProtocol: false);
      await terminalHandler.processTerminalInput('P');
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    });

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     testWithoutContext('S - debugDumpSemanticsTreeInTraversalOrder', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.debugDumpSemanticsTreeInTraversalOrder',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
            'data': 'SEMANTICS DATA',
          },
        ),
      ]);
      await terminalHandler.processTerminalInput('S');
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      expect(terminalHandler.logger.statusText, contains('SEMANTICS DATA'));
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    });

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    testWithoutContext('S - debugDumpSemanticsTreeInTraversalOrder with web target', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
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        listViews,
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          const FakeVmServiceRequest(
          method: 'ext.flutter.debugDumpSemanticsTreeInTraversalOrder',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
            'data': 'SEMANTICS DATA',
          },
        ),
      ], web: true);
      await terminalHandler.processTerminalInput('S');
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      expect(terminalHandler.logger.statusText, contains('SEMANTICS DATA'));
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    });

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    testWithoutContext('S - debugDumpSemanticsTreeInTraversalOrder without service protocol is skipped', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], supportsServiceProtocol: false);
      await terminalHandler.processTerminalInput('S');
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    });

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    testWithoutContext('U - debugDumpSemanticsTreeInInverseHitTestOrder', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.debugDumpSemanticsTreeInInverseHitTestOrder',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
            'data': 'SEMANTICS DATA',
          },
        ),
      ]);
      await terminalHandler.processTerminalInput('U');
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      expect(terminalHandler.logger.statusText, contains('SEMANTICS DATA'));
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    });

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    testWithoutContext('U - debugDumpSemanticsTreeInInverseHitTestOrder with web target', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
678
        listViews,
679 680 681 682 683 684 685 686 687 688 689
          const FakeVmServiceRequest(
          method: 'ext.flutter.debugDumpSemanticsTreeInInverseHitTestOrder',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
            'data': 'SEMANTICS DATA',
          },
        ),
      ], web: true);
      await terminalHandler.processTerminalInput('U');
690

691 692
      expect(terminalHandler.logger.statusText, contains('SEMANTICS DATA'));
    });
693

694 695 696
    testWithoutContext('U - debugDumpSemanticsTreeInInverseHitTestOrder without service protocol is skipped', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], supportsServiceProtocol: false);
      await terminalHandler.processTerminalInput('U');
697 698
    });

699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724
    testWithoutContext('t,T - debugDumpRenderTree', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.debugDumpRenderTree',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
            'data': 'RENDER DATA 1',
          },
        ),
        // Request 2.
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.debugDumpRenderTree',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
            'data': 'RENDER DATA 2',
          },
        ),
      ]);
      await terminalHandler.processTerminalInput('t');
      await terminalHandler.processTerminalInput('T');
725

726 727
      expect(terminalHandler.logger.statusText, contains('RENDER DATA 1'));
      expect(terminalHandler.logger.statusText, contains('RENDER DATA 2'));
728 729
    });

730 731
    testWithoutContext('t,T - debugDumpRenderTree with web target', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
732
        listViews,
733 734 735 736 737 738 739 740 741 742
        const FakeVmServiceRequest(
          method: 'ext.flutter.debugDumpRenderTree',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
            'data': 'RENDER DATA 1',
          },
        ),
        // Request 2.
743
        listViews,
744 745 746 747 748 749 750 751 752 753
        const FakeVmServiceRequest(
          method: 'ext.flutter.debugDumpRenderTree',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
            'data': 'RENDER DATA 2',
          },
        ),
      ], web: true);
754 755 756
      await terminalHandler.processTerminalInput('t');
      await terminalHandler.processTerminalInput('T');

757 758
      expect(terminalHandler.logger.statusText, contains('RENDER DATA 1'));
      expect(terminalHandler.logger.statusText, contains('RENDER DATA 2'));
759 760
    });

761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792
    testWithoutContext('t,T - debugDumpRenderTree without service protocol is skipped', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], supportsServiceProtocol: false);
      await terminalHandler.processTerminalInput('t');
      await terminalHandler.processTerminalInput('T');
    });

    testWithoutContext('w,W - debugDumpApp', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.debugDumpApp',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
            'data': 'WIDGET DATA 1',
          },
        ),
        // Request 2.
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.debugDumpApp',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
            'data': 'WIDGET DATA 2',
          },
        ),
      ]);
      await terminalHandler.processTerminalInput('w');
      await terminalHandler.processTerminalInput('W');
793

794 795
      expect(terminalHandler.logger.statusText, contains('WIDGET DATA 1'));
      expect(terminalHandler.logger.statusText, contains('WIDGET DATA 2'));
796 797
    });

798 799
    testWithoutContext('w,W - debugDumpApp with web target', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
800
        listViews,
801 802 803 804 805 806 807 808 809 810
        const FakeVmServiceRequest(
          method: 'ext.flutter.debugDumpApp',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
            'data': 'WIDGET DATA 1',
          },
        ),
        // Request 2.
811
        listViews,
812 813 814 815 816 817 818 819 820 821
        const FakeVmServiceRequest(
          method: 'ext.flutter.debugDumpApp',
          args: <String, Object>{
            'isolateId': '1',
          },
          jsonResponse: <String, Object>{
            'data': 'WIDGET DATA 2',
          },
        ),
      ], web: true);
822 823 824
      await terminalHandler.processTerminalInput('w');
      await terminalHandler.processTerminalInput('W');

825 826 827 828
      expect(terminalHandler.logger.statusText, contains('WIDGET DATA 1'));
      expect(terminalHandler.logger.statusText, contains('WIDGET DATA 2'));
    });

829
    testWithoutContext('v - launchDevToolsInBrowser', () async {
830
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[]);
831 832 833 834 835 836 837 838
      final FakeResidentRunner runner = terminalHandler.residentRunner as FakeResidentRunner;
      final FakeResidentDevtoolsHandler devtoolsHandler = runner.residentDevtoolsHandler as FakeResidentDevtoolsHandler;

      expect(devtoolsHandler.calledLaunchDevToolsInBrowser, isFalse);
      await terminalHandler.processTerminalInput('v');
      expect(devtoolsHandler.calledLaunchDevToolsInBrowser, isTrue);
    });

839 840 841 842
    testWithoutContext('w,W - debugDumpApp without service protocol is skipped', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], supportsServiceProtocol: false);
      await terminalHandler.processTerminalInput('w');
      await terminalHandler.processTerminalInput('W');
843 844
    });

845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862
    testWithoutContext('z,Z - debugToggleDebugCheckElevationsEnabled', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.debugCheckElevationsEnabled',
          args: <String, Object>{
            'isolateId': '1',
          },
        ),
        // Request 2.
        listViews,
        const FakeVmServiceRequest(
          method: 'ext.flutter.debugCheckElevationsEnabled',
          args: <String, Object>{
            'isolateId': '1',
          },
        ),
      ]);
863 864
      await terminalHandler.processTerminalInput('z');
      await terminalHandler.processTerminalInput('Z');
865
    });
866

867 868
    testWithoutContext('z,Z - debugToggleDebugCheckElevationsEnabled with web target', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
869
        listViews,
870 871 872 873 874 875 876
        const FakeVmServiceRequest(
          method: 'ext.flutter.debugCheckElevationsEnabled',
          args: <String, Object>{
            'isolateId': '1',
          },
        ),
        // Request 2.
877
        listViews,
878 879 880 881 882 883 884 885 886
        const FakeVmServiceRequest(
          method: 'ext.flutter.debugCheckElevationsEnabled',
          args: <String, Object>{
            'isolateId': '1',
          },
        ),
      ], web: true);
      await terminalHandler.processTerminalInput('z');
      await terminalHandler.processTerminalInput('Z');
887 888
    });

889 890
    testWithoutContext('z,Z - debugToggleDebugCheckElevationsEnabled without service protocol is skipped', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], supportsServiceProtocol: false);
891 892
      await terminalHandler.processTerminalInput('z');
      await terminalHandler.processTerminalInput('Z');
893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911
    });

    testWithoutContext('q,Q - exit', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[]);
      final FakeResidentRunner runner = terminalHandler.residentRunner as FakeResidentRunner;
      await terminalHandler.processTerminalInput('q');

      expect(runner.calledExit, true);
      runner.calledExit = false;

      await terminalHandler.processTerminalInput('Q');

      expect(runner.calledExit, true);
    });

    testWithoutContext('r - hotReload unsupported', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], supportsHotReload: false);
      await terminalHandler.processTerminalInput('r');
    });
912

913 914 915
    testWithoutContext('R - hotRestart unsupported', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], supportsRestart: false);
      await terminalHandler.processTerminalInput('R');
916
    });
917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986

    testWithoutContext('r - hotReload', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[]);
      final FakeResidentRunner runner = terminalHandler.residentRunner as FakeResidentRunner;

      await terminalHandler.processTerminalInput('r');

      expect(runner.calledReload, true);
      expect(runner.calledRestart, false);
    });

    testWithoutContext('R - hotRestart', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[]);
      final FakeResidentRunner runner = terminalHandler.residentRunner as FakeResidentRunner;

      await terminalHandler.processTerminalInput('R');

      expect(runner.calledReload, false);
      expect(runner.calledRestart, true);
    });

    testWithoutContext('r - hotReload with non-fatal error', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], reloadExitCode: 1);
      final FakeResidentRunner runner = terminalHandler.residentRunner as FakeResidentRunner;

      await terminalHandler.processTerminalInput('r');

      expect(runner.calledReload, true);
      expect(runner.calledRestart, false);
      expect(terminalHandler.logger.statusText, contains('Try again after fixing the above error(s).'));
    });

    testWithoutContext('R - hotRestart with non-fatal error', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], reloadExitCode: 1);
      final FakeResidentRunner runner = terminalHandler.residentRunner as FakeResidentRunner;

      await terminalHandler.processTerminalInput('R');

      expect(runner.calledReload, false);
      expect(runner.calledRestart, true);
      expect(terminalHandler.logger.statusText, contains('Try again after fixing the above error(s).'));
    });

    testWithoutContext('r - hotReload with fatal error', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], reloadExitCode: 1, fatalReloadError: true);
      final FakeResidentRunner runner = terminalHandler.residentRunner as FakeResidentRunner;

      await expectLater(() => terminalHandler.processTerminalInput('r'), throwsToolExit());

      expect(runner.calledReload, true);
      expect(runner.calledRestart, false);
    });

    testWithoutContext('R - hotRestart with fatal error', () async {
      final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], reloadExitCode: 1, fatalReloadError: true);
      final FakeResidentRunner runner = terminalHandler.residentRunner as FakeResidentRunner;

      await expectLater(() => terminalHandler.processTerminalInput('R'), throwsToolExit());

      expect(runner.calledReload, false);
      expect(runner.calledRestart, true);
    });
  });

  testWithoutContext('ResidentRunner clears the screen when it should', () async {
    final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], reloadExitCode: 1, fatalReloadError: true);
    const String message = 'This should be cleared';

    expect(terminalHandler.logger.statusText, equals(''));
    terminalHandler.logger.printStatus(message);
987
    expect(terminalHandler.logger.statusText, equals('$message\n'));  // printStatus makes a newline
988 989 990

    await terminalHandler.processTerminalInput('c');
    expect(terminalHandler.logger.statusText, equals(''));
991
  });
992

993 994 995 996 997 998
  testWithoutContext('s, can take screenshot on debug device that supports screenshot', () async {
    final BufferLogger logger = BufferLogger.test();
    final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
      listViews,
      FakeVmServiceRequest(
        method: 'ext.flutter.debugAllowBanner',
999
        args: <String, Object?>{
1000 1001 1002 1003 1004 1005
          'isolateId': fakeUnpausedIsolate.id,
          'enabled': 'false',
        },
      ),
      FakeVmServiceRequest(
        method: 'ext.flutter.debugAllowBanner',
1006
        args: <String, Object?>{
1007 1008 1009
          'isolateId': fakeUnpausedIsolate.id,
          'enabled': 'true',
        },
1010
      ),
1011 1012 1013 1014 1015 1016 1017
    ], logger: logger, supportsScreenshot: true);

    await terminalHandler.processTerminalInput('s');

    expect(logger.statusText, contains('Screenshot written to flutter_01.png (0kB)'));
  });

1018
  testWithoutContext('s, will not take screenshot on non-web device without screenshot tooling support', () async {
1019 1020
    final BufferLogger logger = BufferLogger.test();
    final FileSystem fileSystem = MemoryFileSystem.test();
1021
    final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[], logger: logger, fileSystem: fileSystem);
1022 1023 1024

    await terminalHandler.processTerminalInput('s');

1025
    expect(logger.statusText, isNot(contains('Screenshot written to')));
1026 1027 1028 1029 1030 1031
  });

  testWithoutContext('s, can take screenshot on debug web device that does not support screenshot', () async {
    final BufferLogger logger = BufferLogger.test();
    final FileSystem fileSystem = MemoryFileSystem.test();
    final TerminalHandler terminalHandler = setUpTerminalHandler(<FakeVmServiceRequest>[
1032
      listViews,
1033 1034
      FakeVmServiceRequest(
        method: 'ext.flutter.debugAllowBanner',
1035
        args: <String, Object?>{
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          'isolateId': fakeUnpausedIsolate.id,
          'enabled': 'false',
        },
      ),
      FakeVmServiceRequest(
        method: 'ext.dwds.screenshot',
        args: <String, Object>{},
        jsonResponse: <String, Object>{
          'data': base64.encode(<int>[1, 2, 3, 4]),
        },
      ),
      FakeVmServiceRequest(
        method: 'ext.flutter.debugAllowBanner',
1049
        args: <String, Object?>{
1050 1051 1052
          'isolateId': fakeUnpausedIsolate.id,
          'enabled': 'true',
        },
1053
      ),
1054
    ], logger: logger, web: true, fileSystem: fileSystem);
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    await terminalHandler.processTerminalInput('s');

    expect(logger.statusText, contains('Screenshot written to flutter_01.png (0kB)'));
    expect(fileSystem.currentDirectory.childFile('flutter_01.png').readAsBytesSync(), <int>[1, 2, 3, 4]);
  });

  testWithoutContext('s, can take screenshot on device that does not support service protocol', () async {
    final BufferLogger logger = BufferLogger.test();
    final FileSystem fileSystem = MemoryFileSystem.test();
    final TerminalHandler terminalHandler = setUpTerminalHandler(
      <FakeVmServiceRequest>[],
      logger: logger,
      supportsScreenshot: true,
      supportsServiceProtocol: false,
      fileSystem: fileSystem,
    );

    await terminalHandler.processTerminalInput('s');

    expect(logger.statusText, contains('Screenshot written to flutter_01.png (0kB)'));
    expect(fileSystem.currentDirectory.childFile('flutter_01.png').readAsBytesSync(), <int>[1, 2, 3, 4]);
  });

  testWithoutContext('s, does not take a screenshot on a device that does not support screenshot or the service protocol', () async {
    final BufferLogger logger = BufferLogger.test();
    final FileSystem fileSystem = MemoryFileSystem.test();
    final TerminalHandler terminalHandler = setUpTerminalHandler(
      <FakeVmServiceRequest>[],
      logger: logger,
      supportsServiceProtocol: false,
      fileSystem: fileSystem,
    );

    await terminalHandler.processTerminalInput('s');

    expect(logger.statusText, '\n');
    expect(fileSystem.currentDirectory.childFile('flutter_01.png'), isNot(exists));
  });

  testWithoutContext('s, does not take a screenshot on a web device that does not support screenshot or the service protocol', () async {
    final BufferLogger logger = BufferLogger.test();
    final FileSystem fileSystem = MemoryFileSystem.test();
    final TerminalHandler terminalHandler = setUpTerminalHandler(
      <FakeVmServiceRequest>[],
      logger: logger,
      supportsServiceProtocol: false,
      web: true,
      fileSystem: fileSystem,
    );

    await terminalHandler.processTerminalInput('s');

    expect(logger.statusText, '\n');
    expect(fileSystem.currentDirectory.childFile('flutter_01.png'), isNot(exists));
  });

  testWithoutContext('s, bails taking screenshot on debug device if dwds.screenshot throws RpcError, restoring banner', () async {
    final BufferLogger logger = BufferLogger.test();
    final FileSystem fileSystem = MemoryFileSystem.test();
    final TerminalHandler terminalHandler = setUpTerminalHandler(
      <FakeVmServiceRequest>[
1117
        listViews,
1118 1119
        FakeVmServiceRequest(
          method: 'ext.flutter.debugAllowBanner',
1120
          args: <String, Object?>{
1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131
            'isolateId': fakeUnpausedIsolate.id,
            'enabled': 'false',
          },
        ),
        const FakeVmServiceRequest(
          method: 'ext.dwds.screenshot',
          // Failed response,
          errorCode: RPCErrorCodes.kInternalError,
        ),
        FakeVmServiceRequest(
          method: 'ext.flutter.debugAllowBanner',
1132
          args: <String, Object?>{
1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152
            'isolateId': fakeUnpausedIsolate.id,
            'enabled': 'true',
          },
        ),
      ],
      logger: logger,
      web: true,
      fileSystem: fileSystem,
    );

    await terminalHandler.processTerminalInput('s');

    expect(logger.errorText, contains('Error'));
  });

  testWithoutContext('s, bails taking screenshot on debug device if debugAllowBanner during second request', () async {
    final BufferLogger logger = BufferLogger.test();
    final FileSystem fileSystem = MemoryFileSystem.test();
    final TerminalHandler terminalHandler = setUpTerminalHandler(
      <FakeVmServiceRequest>[
1153
        listViews,
1154 1155
        FakeVmServiceRequest(
          method: 'ext.flutter.debugAllowBanner',
1156
          args: <String, Object?>{
1157 1158 1159 1160 1161 1162
            'isolateId': fakeUnpausedIsolate.id,
            'enabled': 'false',
          },
        ),
        FakeVmServiceRequest(
          method: 'ext.flutter.debugAllowBanner',
1163
          args: <String, Object?>{
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            'isolateId': fakeUnpausedIsolate.id,
            'enabled': 'true',
          },
          // Failed response,
          errorCode: RPCErrorCodes.kInternalError,
        ),
      ],
      logger: logger,
      supportsScreenshot: true,
      fileSystem: fileSystem,
    );

    await terminalHandler.processTerminalInput('s');

    expect(logger.errorText, contains('Error'));
  });

1181 1182 1183 1184 1185 1186
  testWithoutContext('pidfile creation', () {
    final BufferLogger testLogger = BufferLogger.test();
    final Signals signals = _TestSignals(Signals.defaultExitSignals);
    final Terminal terminal = Terminal.test();
    final MemoryFileSystem fs = MemoryFileSystem.test();
    final ProcessInfo processInfo = ProcessInfo.test(fs);
1187
    final FakeResidentRunner residentRunner = FakeResidentRunner(
1188 1189 1190 1191 1192 1193
      FlutterDevice(
        FakeDevice(),
        buildInfo: BuildInfo.debug,
        generator: FakeResidentCompiler(),
        developmentShaderCompiler: const FakeShaderCompiler(),
      ),
1194 1195 1196 1197 1198 1199 1200 1201
      testLogger,
      fs,
    );
    residentRunner
      ..supportsRestart = true
      ..supportsServiceProtocol = true
      ..stayResident = true;

1202 1203
    const String filename = 'test.pid';
    final TerminalHandler terminalHandler = TerminalHandler(
1204
      residentRunner,
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      logger: testLogger,
      signals: signals,
      terminal: terminal,
      processInfo: processInfo,
      reportReady: false,
      pidFile: filename,
    );
1212 1213

    expect(fs.file(filename), isNot(exists));
1214 1215
    terminalHandler.setupTerminal();
    terminalHandler.registerSignalHandlers();
1216
    expect(fs.file(filename), exists);
1217
    terminalHandler.stop();
1218
    expect(fs.file(filename),  isNot(exists));
1219
  });
1220 1221
}

1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283
class FakeResidentRunner extends ResidentHandlers {
  FakeResidentRunner(FlutterDevice device, this.logger, this.fileSystem) : flutterDevices = <FlutterDevice>[device];

  bool calledDetach = false;
  bool calledPrint = false;
  bool calledExit = false;
  bool calledPrintWithDetails = false;
  bool calledReload = false;
  bool calledRestart = false;
  int reloadExitCode = 0;
  bool fatalReloadError = false;

  @override
  final Logger logger;

  @override
  final FileSystem fileSystem;

  @override
  final List<FlutterDevice> flutterDevices;

  @override
  bool canHotReload = true;

  @override
  bool hotMode = true;

  @override
  bool isRunningDebug = true;

  @override
  bool isRunningProfile = false;

  @override
  bool isRunningRelease = false;

  @override
  bool stayResident = true;

  @override
  bool supportsRestart = true;

  @override
  bool supportsServiceProtocol = true;

  @override
  bool supportsWriteSkSL = true;

  @override
  Future<void> cleanupAfterSignal() async { }

  @override
  Future<void> detach() async {
    calledDetach = true;
  }

  @override
  Future<void> exit() async {
    calledExit = true;
  }

  @override
1284
  void printHelp({required bool details}) {
1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295
    if (details) {
      calledPrintWithDetails = true;
    } else {
      calledPrint = true;
    }
  }

  @override
  Future<void> runSourceGenerators() async {  }

  @override
1296
  Future<OperationResult> restart({bool fullRestart = false, bool pause = false, String? reason}) async {
1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309
    if (fullRestart && !supportsRestart) {
      throw StateError('illegal restart');
    }
    if (!fullRestart && !canHotReload) {
      throw StateError('illegal reload');
    }
    if (fullRestart) {
      calledRestart = true;
    } else {
      calledReload = true;
    }
    return OperationResult(reloadExitCode, '', fatal: fatalReloadError);
  }
1310 1311 1312 1313 1314 1315 1316 1317 1318 1319

  @override
  ResidentDevtoolsHandler get residentDevtoolsHandler => _residentDevtoolsHandler;
  final ResidentDevtoolsHandler _residentDevtoolsHandler = FakeResidentDevtoolsHandler();
}

class FakeResidentDevtoolsHandler extends Fake implements ResidentDevtoolsHandler {
  bool calledLaunchDevToolsInBrowser = false;

  @override
1320
  bool launchDevToolsInBrowser({List<FlutterDevice?>? flutterDevices}) {
1321 1322
    return calledLaunchDevToolsInBrowser = true;
  }
1323 1324
}

1325 1326 1327
// Unfortunately Device, despite not being immutable, has an `operator ==`.
// Until we fix that, we have to also ignore related lints here.
// ignore: avoid_implementing_value_types
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class FakeDevice extends Fake implements Device {
  @override
  bool isSupported() => true;

  @override
  bool supportsScreenshot = false;

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  @override
  String get name => 'Fake Device';

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  @override
  Future<void> takeScreenshot(File file) async {
    if (!supportsScreenshot) {
      throw StateError('illegal screenshot attempt');
    }
    file.writeAsBytesSync(<int>[1, 2, 3, 4]);
  }

}

TerminalHandler setUpTerminalHandler(List<FakeVmServiceRequest> requests, {
  bool supportsRestart = true,
  bool supportsServiceProtocol = true,
  bool supportsHotReload = true,
  bool web = false,
  bool fatalReloadError = false,
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  bool supportsScreenshot = false,
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  int reloadExitCode = 0,
  BuildMode buildMode = BuildMode.debug,
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  Logger? logger,
  FileSystem? fileSystem,
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}) {
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  final Logger testLogger = logger ?? BufferLogger.test();
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  final Signals signals = Signals.test();
  final Terminal terminal = Terminal.test();
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  final FileSystem localFileSystem = fileSystem ?? MemoryFileSystem.test();
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  final ProcessInfo processInfo = ProcessInfo.test(MemoryFileSystem.test());
  final FlutterDevice device = FlutterDevice(
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    FakeDevice()..supportsScreenshot = supportsScreenshot,
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    buildInfo: BuildInfo(buildMode, '', treeShakeIcons: false),
    generator: FakeResidentCompiler(),
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    developmentShaderCompiler: const FakeShaderCompiler(),
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    targetPlatform: web
      ? TargetPlatform.web_javascript
      : TargetPlatform.android_arm,
  );
  device.vmService = FakeVmServiceHost(requests: requests).vmService;
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  final FakeResidentRunner residentRunner = FakeResidentRunner(device, testLogger, localFileSystem)
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    ..supportsServiceProtocol = supportsServiceProtocol
    ..supportsRestart = supportsRestart
    ..canHotReload = supportsHotReload
    ..fatalReloadError = fatalReloadError
    ..reloadExitCode = reloadExitCode;

  switch (buildMode) {
    case BuildMode.debug:
      residentRunner
        ..isRunningDebug = true
        ..isRunningProfile = false
        ..isRunningRelease = false;
    case BuildMode.profile:
      residentRunner
        ..isRunningDebug = false
        ..isRunningProfile = true
        ..isRunningRelease = false;
    case BuildMode.release:
      residentRunner
        ..isRunningDebug = false
        ..isRunningProfile = false
        ..isRunningRelease = true;
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    case _:
      // NOOP
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  }
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  return TerminalHandler(
    residentRunner,
    logger: testLogger,
    signals: signals,
    terminal: terminal,
    processInfo: processInfo,
    reportReady: false,
  );
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}

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class FakeResidentCompiler extends Fake implements ResidentCompiler { }
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class TestRunner extends Fake implements ResidentRunner {
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  bool hasHelpBeenPrinted = false;

  @override
  Future<void> cleanupAfterSignal() async { }

  @override
  Future<void> cleanupAtFinish() async { }

  @override
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  void printHelp({ bool? details }) {
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    hasHelpBeenPrinted = true;
  }

  @override
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  Future<int?> run({
    Completer<DebugConnectionInfo>? connectionInfoCompleter,
    Completer<void>? appStartedCompleter,
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    bool enableDevTools = false,
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    String? route,
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  }) async => null;

  @override
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  Future<int?> attach({
    Completer<DebugConnectionInfo>? connectionInfoCompleter,
    Completer<void>? appStartedCompleter,
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    bool allowExistingDdsInstance = false,
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    bool enableDevTools = false,
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    bool needsFullRestart = true,
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  }) async => null;
}
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class _TestSignals implements Signals {
  _TestSignals(this.exitSignals);

  final List<ProcessSignal> exitSignals;

  final Map<ProcessSignal, Map<Object, SignalHandler>> _handlersTable =
      <ProcessSignal, Map<Object, SignalHandler>>{};

  @override
  Object addHandler(ProcessSignal signal, SignalHandler handler) {
    final Object token = Object();
    _handlersTable.putIfAbsent(signal, () => <Object, SignalHandler>{})[token] = handler;
    return token;
  }

  @override
  Future<bool> removeHandler(ProcessSignal signal, Object token) async {
    if (!_handlersTable.containsKey(signal)) {
      return false;
    }
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    if (!_handlersTable[signal]!.containsKey(token)) {
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      return false;
    }
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    _handlersTable[signal]!.remove(token);
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    return true;
  }

  @override
  Stream<Object> get errors => _errors.stream;
  final StreamController<Object> _errors = StreamController<Object>();
}
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class FakeShaderCompiler implements DevelopmentShaderCompiler {
  const FakeShaderCompiler();

  @override
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  void configureCompiler(
    TargetPlatform? platform, {
    required ImpellerStatus impellerStatus,
  }) { }
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  @override
  Future<DevFSContent> recompileShader(DevFSContent inputShader) {
    throw UnimplementedError();
  }
}