diff --git a/packages/flutter_tools/test/general.shard/device_test.dart b/packages/flutter_tools/test/general.shard/device_test.dart
index 91031fd38b..c2a27da7a8 100644
--- a/packages/flutter_tools/test/general.shard/device_test.dart
+++ b/packages/flutter_tools/test/general.shard/device_test.dart
@@ -4,6 +4,7 @@
 
 import 'dart:async';
 
+import 'package:flutter_tools/src/artifacts.dart';
 import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/device.dart';
 import 'package:flutter_tools/src/base/io.dart';
@@ -25,6 +26,8 @@ void main() {
       final List<Device> devices = <Device>[device1, device2, device3];
       final DeviceManager deviceManager = TestDeviceManager(devices);
       expect(await deviceManager.getDevices(), devices);
+    }, overrides: <Type, Generator>{
+      Artifacts: () => Artifacts.test(),
     });
 
     testUsingContext('getDeviceById', () async {
@@ -43,6 +46,8 @@ void main() {
       await expectDevice('Nexus 5', <Device>[device1]);
       await expectDevice('0553790', <Device>[device1]);
       await expectDevice('Nexus', <Device>[device1, device2]);
+    }, overrides: <Type, Generator>{
+      Artifacts: () => Artifacts.test(),
     });
 
     testUsingContext('getAllConnectedDevices caches', () async {
@@ -53,6 +58,8 @@ void main() {
       final FakeDevice device2 = FakeDevice('Nexus 5X', '01abfc49119c410e');
       deviceManager.resetDevices(<Device>[device2]);
       expect(await deviceManager.getAllConnectedDevices(), <Device>[device1]);
+    }, overrides: <Type, Generator>{
+      Artifacts: () => Artifacts.test(),
     });
 
     testUsingContext('refreshAllConnectedDevices does not cache', () async {
@@ -63,6 +70,8 @@ void main() {
       final FakeDevice device2 = FakeDevice('Nexus 5X', '01abfc49119c410e');
       deviceManager.resetDevices(<Device>[device2]);
       expect(await deviceManager.refreshAllConnectedDevices(), <Device>[device2]);
+    }, overrides: <Type, Generator>{
+      Artifacts: () => Artifacts.test(),
     });
   });
 
@@ -83,6 +92,8 @@ void main() {
         expect(pollingDeviceDiscovery.lastPollingTimeout, const Duration(seconds: 30));
         await pollingDeviceDiscovery.stopPolling();
       });
+    }, overrides: <Type, Generator>{
+      Artifacts: () => Artifacts.test(),
     });
   });
 
@@ -117,6 +128,8 @@ void main() {
       final List<Device> filtered = await deviceManager.findTargetDevices(FlutterProject.current());
 
       expect(filtered.single, ephemeral);
+    }, overrides: <Type, Generator>{
+      Artifacts: () => Artifacts.test(),
     });
 
     testUsingContext('does not remove all non-ephemeral', () async {
@@ -132,6 +145,8 @@ void main() {
         nonEphemeralOne,
         nonEphemeralTwo,
       ]);
+    }, overrides: <Type, Generator>{
+      Artifacts: () => Artifacts.test(),
     });
 
     testUsingContext('Removes a single unsupported device', () async {
@@ -143,6 +158,8 @@ void main() {
       final List<Device> filtered = await deviceManager.findTargetDevices(FlutterProject.current());
 
       expect(filtered, <Device>[]);
+    }, overrides: <Type, Generator>{
+      Artifacts: () => Artifacts.test(),
     });
 
     testUsingContext('Removes web and fuchsia from --all', () async {
@@ -156,6 +173,8 @@ void main() {
       final List<Device> filtered = await deviceManager.findTargetDevices(FlutterProject.current());
 
       expect(filtered, <Device>[]);
+    }, overrides: <Type, Generator>{
+      Artifacts: () => Artifacts.test(),
     });
 
     testUsingContext('Removes unsupported devices from --all', () async {
@@ -173,6 +192,8 @@ void main() {
         nonEphemeralOne,
         nonEphemeralTwo,
       ]);
+    }, overrides: <Type, Generator>{
+      Artifacts: () => Artifacts.test(),
     });
 
     testUsingContext('uses DeviceManager.isDeviceSupportedForProject instead of device.isSupportedForProject', () async {
@@ -187,6 +208,8 @@ void main() {
       expect(filtered, <Device>[
         unsupported,
       ]);
+    }, overrides: <Type, Generator>{
+      Artifacts: () => Artifacts.test(),
     });
   });
   group('ForwardedPort', () {
diff --git a/packages/flutter_tools/test/general.shard/fuchsia/fuchsia_device_test.dart b/packages/flutter_tools/test/general.shard/fuchsia/fuchsia_device_test.dart
index 28f426fecf..89772864dd 100644
--- a/packages/flutter_tools/test/general.shard/fuchsia/fuchsia_device_test.dart
+++ b/packages/flutter_tools/test/general.shard/fuchsia/fuchsia_device_test.dart
@@ -17,6 +17,7 @@ import 'package:flutter_tools/src/base/os.dart';
 import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/base/time.dart';
 import 'package:flutter_tools/src/build_info.dart';
+import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/device.dart';
 import 'package:flutter_tools/src/fuchsia/amber_ctl.dart';
 import 'package:flutter_tools/src/fuchsia/application_package.dart';
@@ -791,28 +792,36 @@ void main() {
   });
 
   testUsingContext('Correct flutter runner', () async {
-    expect(globals.artifacts.getArtifactPath(
+    final MockCache cache = MockCache();
+    final FileSystem fileSystem = MemoryFileSystem.test();
+    when(cache.getArtifactDirectory('flutter_runner')).thenReturn(fileSystem.directory('fuchsia'));
+    final CachedArtifacts artifacts = CachedArtifacts(
+      cache: cache,
+      fileSystem: fileSystem,
+      platform: FakePlatform(operatingSystem: 'linux'),
+    );
+    expect(artifacts.getArtifactPath(
         Artifact.fuchsiaFlutterRunner,
         platform: TargetPlatform.fuchsia_x64,
         mode: BuildMode.debug,
       ),
       contains('flutter_jit_runner'),
     );
-    expect(globals.artifacts.getArtifactPath(
+    expect(artifacts.getArtifactPath(
         Artifact.fuchsiaFlutterRunner,
         platform: TargetPlatform.fuchsia_x64,
         mode: BuildMode.profile,
       ),
       contains('flutter_aot_runner'),
     );
-    expect(globals.artifacts.getArtifactPath(
+    expect(artifacts.getArtifactPath(
         Artifact.fuchsiaFlutterRunner,
         platform: TargetPlatform.fuchsia_x64,
         mode: BuildMode.release,
       ),
       contains('flutter_aot_product_runner'),
     );
-    expect(globals.artifacts.getArtifactPath(
+    expect(artifacts.getArtifactPath(
         Artifact.fuchsiaFlutterRunner,
         platform: TargetPlatform.fuchsia_x64,
         mode: BuildMode.jitRelease,
@@ -1550,3 +1559,4 @@ class MockFuchsiaSdk extends Mock implements FuchsiaSdk {
 }
 
 class MockFuchsiaWorkflow extends Mock implements FuchsiaWorkflow {}
+class MockCache extends Mock implements Cache {}
diff --git a/packages/flutter_tools/test/general.shard/hot_test.dart b/packages/flutter_tools/test/general.shard/hot_test.dart
index 1f786394b1..2ffd67bc38 100644
--- a/packages/flutter_tools/test/general.shard/hot_test.dart
+++ b/packages/flutter_tools/test/general.shard/hot_test.dart
@@ -4,6 +4,10 @@
 
 import 'dart:async';
 
+import 'package:file/memory.dart';
+import 'package:flutter_tools/src/base/file_system.dart';
+import 'package:flutter_tools/src/base/platform.dart';
+import 'package:flutter_tools/src/dart/package_map.dart';
 import 'package:vm_service/vm_service.dart' as vm_service;
 import 'package:flutter_tools/src/artifacts.dart';
 import 'package:flutter_tools/src/base/io.dart';
@@ -131,7 +135,7 @@ void main() {
   group('hotRestart', () {
     final MockResidentCompiler residentCompiler = MockResidentCompiler();
     final MockDevFs mockDevFs = MockDevFs();
-    MockLocalEngineArtifacts mockArtifacts;
+    FileSystem fileSystem;
 
     when(mockDevFs.update(
       mainUri: anyNamed('mainUri'),
@@ -155,11 +159,13 @@ void main() {
     when(mockDevFs.lastCompiled).thenReturn(DateTime.now());
 
     setUp(() {
-      mockArtifacts = MockLocalEngineArtifacts();
-      when(mockArtifacts.getArtifactPath(Artifact.flutterPatchedSdkPath)).thenReturn('some/path');
+      fileSystem = MemoryFileSystem.test();
     });
 
     testUsingContext('Does not hot restart when device does not support it', () async {
+      fileSystem.file(globalPackagesPath)
+        ..createSync(recursive: true)
+        ..writeAsStringSync('\n');
       // Setup mocks
       final MockDevice mockDevice = MockDevice();
       when(mockDevice.supportsHotReload).thenReturn(true);
@@ -174,11 +180,17 @@ void main() {
       expect(result.isOk, false);
       expect(result.message, 'hotRestart not supported');
     }, overrides: <Type, Generator>{
-      Artifacts: () => mockArtifacts,
       HotRunnerConfig: () => TestHotRunnerConfig(successfulSetup: true),
+      Artifacts: () => Artifacts.test(),
+      FileSystem: () => fileSystem,
+      Platform: () => FakePlatform(operatingSystem: 'linux'),
+      ProcessManager: () => FakeProcessManager.any(),
     });
 
     testUsingContext('Does not hot restart when one of many devices does not support it', () async {
+      fileSystem.file(globalPackagesPath)
+        ..createSync(recursive: true)
+        ..writeAsStringSync('\n');
       // Setup mocks
       final MockDevice mockDevice = MockDevice();
       final MockDevice mockHotDevice = MockDevice();
@@ -196,8 +208,11 @@ void main() {
       expect(result.isOk, false);
       expect(result.message, 'hotRestart not supported');
     }, overrides: <Type, Generator>{
-      Artifacts: () => mockArtifacts,
       HotRunnerConfig: () => TestHotRunnerConfig(successfulSetup: true),
+      Artifacts: () => Artifacts.test(),
+      FileSystem: () => fileSystem,
+      Platform: () => FakePlatform(operatingSystem: 'linux'),
+      ProcessManager: () => FakeProcessManager.any(),
     });
 
     testUsingContext('Does hot restarts when all devices support it', () async {
@@ -294,11 +309,17 @@ void main() {
       expect(result.isOk, true);
       expect(result.message, isNot('hotRestart not supported'));
     }, overrides: <Type, Generator>{
-      Artifacts: () => mockArtifacts,
       HotRunnerConfig: () => TestHotRunnerConfig(successfulSetup: true),
+      Artifacts: () => Artifacts.test(),
+      FileSystem: () => fileSystem,
+      Platform: () => FakePlatform(operatingSystem: 'linux'),
+      ProcessManager: () => FakeProcessManager.any(),
     });
 
     testUsingContext('setup function fails', () async {
+      fileSystem.file(globalPackagesPath)
+        ..createSync(recursive: true)
+        ..writeAsStringSync('\n');
       final MockDevice mockDevice = MockDevice();
       when(mockDevice.supportsHotReload).thenReturn(true);
       when(mockDevice.supportsHotRestart).thenReturn(true);
@@ -310,11 +331,17 @@ void main() {
       expect(result.isOk, false);
       expect(result.message, 'setupHotRestart failed');
     }, overrides: <Type, Generator>{
-      Artifacts: () => mockArtifacts,
       HotRunnerConfig: () => TestHotRunnerConfig(successfulSetup: false),
+      Artifacts: () => Artifacts.test(),
+      FileSystem: () => fileSystem,
+      Platform: () => FakePlatform(operatingSystem: 'linux'),
+      ProcessManager: () => FakeProcessManager.any(),
     });
 
     testUsingContext('hot restart supported', () async {
+      fileSystem.file(globalPackagesPath)
+        ..createSync(recursive: true)
+        ..writeAsStringSync('\n');
       // Setup mocks
       final FakeVmServiceHost fakeVmServiceHost = FakeVmServiceHost(requests: <VmServiceExpectation>[
         listViews,
@@ -369,8 +396,11 @@ void main() {
       expect(result.isOk, true);
       expect(result.message, isNot('setupHotRestart failed'));
     }, overrides: <Type, Generator>{
-      Artifacts: () => mockArtifacts,
       HotRunnerConfig: () => TestHotRunnerConfig(successfulSetup: true),
+      Artifacts: () => Artifacts.test(),
+      FileSystem: () => fileSystem,
+      Platform: () => FakePlatform(operatingSystem: 'linux'),
+      ProcessManager: () => FakeProcessManager.any(),
     });
 
     group('shutdown hook tests', () {
@@ -383,6 +413,9 @@ void main() {
       });
 
       testUsingContext('shutdown hook called after signal', () async {
+        fileSystem.file(globalPackagesPath)
+          ..createSync(recursive: true)
+          ..writeAsStringSync('\n');
         final MockDevice mockDevice = MockDevice();
         when(mockDevice.supportsHotReload).thenReturn(true);
         when(mockDevice.supportsHotRestart).thenReturn(true);
@@ -393,11 +426,17 @@ void main() {
         await HotRunner(devices).cleanupAfterSignal();
         expect(shutdownTestingConfig.shutdownHookCalled, true);
       }, overrides: <Type, Generator>{
-        Artifacts: () => mockArtifacts,
         HotRunnerConfig: () => shutdownTestingConfig,
+        Artifacts: () => Artifacts.test(),
+        FileSystem: () => fileSystem,
+        Platform: () => FakePlatform(operatingSystem: 'linux'),
+        ProcessManager: () => FakeProcessManager.any(),
       });
 
       testUsingContext('shutdown hook called after app stop', () async {
+        fileSystem.file(globalPackagesPath)
+          ..createSync(recursive: true)
+          ..writeAsStringSync('\n');
         final MockDevice mockDevice = MockDevice();
         when(mockDevice.supportsHotReload).thenReturn(true);
         when(mockDevice.supportsHotRestart).thenReturn(true);
@@ -408,21 +447,28 @@ void main() {
         await HotRunner(devices).preExit();
         expect(shutdownTestingConfig.shutdownHookCalled, true);
       }, overrides: <Type, Generator>{
-        Artifacts: () => mockArtifacts,
         HotRunnerConfig: () => shutdownTestingConfig,
+        Artifacts: () => Artifacts.test(),
+        FileSystem: () => fileSystem,
+        Platform: () => FakePlatform(operatingSystem: 'linux'),
+        ProcessManager: () => FakeProcessManager.any(),
       });
     });
   });
 
   group('hot attach', () {
-    MockLocalEngineArtifacts mockArtifacts;
+    FileSystem fileSystem;
 
     setUp(() {
-      mockArtifacts = MockLocalEngineArtifacts();
+      fileSystem = MemoryFileSystem.test();
     });
 
     testUsingContext('Exits with code 2 when when HttpException is thrown '
       'during VM service connection', () async {
+      fileSystem.file(globalPackagesPath)
+        ..createSync(recursive: true)
+        ..writeAsStringSync('\n');
+
       final MockResidentCompiler residentCompiler = MockResidentCompiler();
       final MockDevice mockDevice = MockDevice();
       when(mockDevice.supportsHotReload).thenReturn(true);
@@ -444,8 +490,11 @@ void main() {
       ).attach();
       expect(exitCode, 2);
     }, overrides: <Type, Generator>{
-      Artifacts: () => mockArtifacts,
       HotRunnerConfig: () => TestHotRunnerConfig(successfulSetup: true),
+      Artifacts: () => Artifacts.test(),
+      FileSystem: () => fileSystem,
+      Platform: () => FakePlatform(operatingSystem: 'linux'),
+      ProcessManager: () => FakeProcessManager.any(),
     });
   });
 
@@ -482,8 +531,6 @@ void main() {
 
 class MockDevFs extends Mock implements DevFS {}
 
-class MockLocalEngineArtifacts extends Mock implements LocalEngineArtifacts {}
-
 class MockDevice extends Mock implements Device {
   MockDevice() {
     when(isSupported()).thenReturn(true);
diff --git a/packages/flutter_tools/test/general.shard/ios/ios_device_start_nonprebuilt_test.dart b/packages/flutter_tools/test/general.shard/ios/ios_device_start_nonprebuilt_test.dart
index 0bae7ec620..4b961dc132 100644
--- a/packages/flutter_tools/test/general.shard/ios/ios_device_start_nonprebuilt_test.dart
+++ b/packages/flutter_tools/test/general.shard/ios/ios_device_start_nonprebuilt_test.dart
@@ -92,6 +92,9 @@ void main() {
       );
       mockXcode = MockXcode();
       when(mockXcode.isVersionSatisfactory).thenReturn(true);
+      fileSystem.file('foo/.packages')
+        ..createSync(recursive: true)
+        ..writeAsStringSync('\n');
     });
 
     testUsingContext('with buildable app', () async {
diff --git a/packages/flutter_tools/test/general.shard/ios/simulators_test.dart b/packages/flutter_tools/test/general.shard/ios/simulators_test.dart
index 71dafd946b..72bb8d9e9e 100644
--- a/packages/flutter_tools/test/general.shard/ios/simulators_test.dart
+++ b/packages/flutter_tools/test/general.shard/ios/simulators_test.dart
@@ -37,6 +37,13 @@ class MockXcode extends Mock implements Xcode {}
 class MockSimControl extends Mock implements SimControl {}
 class MockPlistUtils extends Mock implements PlistParser {}
 
+final Platform macosPlatform = FakePlatform(
+  operatingSystem: 'macos',
+  environment: <String, String>{
+    'HOME': '/'
+  },
+);
+
 void main() {
   FakePlatform osx;
   FileSystemUtils fsUtils;
@@ -458,12 +465,11 @@ void main() {
     overrides: <Type, Generator>{
       ProcessManager: () => mockProcessManager,
       FileSystem: () => fileSystem,
-      Platform: () => FakePlatform(
-        operatingSystem: 'macos',
-        environment: <String, String>{
-          'HOME': '/'
-        },
-      ),
+      Platform: () => macosPlatform,
+      FileSystemUtils: () => FileSystemUtils(
+        fileSystem: fileSystem,
+        platform: macosPlatform,
+      )
     });
 
     testUsingContext('unified logging with app name', () async {
diff --git a/packages/flutter_tools/test/general.shard/macos/cocoapods_test.dart b/packages/flutter_tools/test/general.shard/macos/cocoapods_test.dart
index d313014db7..f51f3609a4 100644
--- a/packages/flutter_tools/test/general.shard/macos/cocoapods_test.dart
+++ b/packages/flutter_tools/test/general.shard/macos/cocoapods_test.dart
@@ -43,7 +43,6 @@ void main() {
 
   void podsIsInHomeDir() {
     fileSystem.directory(fileSystem.path.join(
-      globals.fsUtils.homeDirPath,
       '.cocoapods',
       'repos',
       'master',
@@ -52,7 +51,6 @@ void main() {
 
   String podsIsInCustomDir({String cocoapodsReposDir}) {
     cocoapodsReposDir ??= fileSystem.path.join(
-      globals.fsUtils.homeDirPath,
       'cache',
       'cocoapods',
       'repos',
@@ -292,6 +290,9 @@ void main() {
 
   group('Update xcconfig', () {
     testUsingContext('includes Pod config in xcconfig files, if the user manually added Pod dependencies without using Flutter plugins', () async {
+      globals.fs.file(globals.fs.path.join('project', 'foo', '.packages'))
+        ..createSync(recursive: true)
+        ..writeAsStringSync('\n');
       projectUnderTest.ios.podfile..createSync()..writeAsStringSync('Custom Podfile');
       projectUnderTest.ios.podfileLock..createSync()..writeAsStringSync('Podfile.lock from user executed `pod install`');
       projectUnderTest.packagesFile..createSync()..writeAsStringSync('');
diff --git a/packages/flutter_tools/test/general.shard/resident_runner_test.dart b/packages/flutter_tools/test/general.shard/resident_runner_test.dart
index b0445a0fc3..90ac124ae8 100644
--- a/packages/flutter_tools/test/general.shard/resident_runner_test.dart
+++ b/packages/flutter_tools/test/general.shard/resident_runner_test.dart
@@ -5,6 +5,7 @@
 import 'dart:async';
 
 import 'package:flutter_tools/src/cache.dart';
+import 'package:flutter_tools/src/dart/package_map.dart';
 import 'package:vm_service/vm_service.dart' as vm_service;
 import 'package:file/memory.dart';
 import 'package:file_testing/file_testing.dart';
@@ -92,7 +93,7 @@ void main() {
 
   setUp(() {
     testbed = Testbed(setup: () {
-      globals.fs.file('.packages').writeAsStringSync('\n');
+      globals.fs.file(globalPackagesPath).writeAsStringSync('\n');
       globals.fs.file(globals.fs.path.join('build', 'app.dill'))
         ..createSync(recursive: true)
         ..writeAsStringSync('ABC');
@@ -844,6 +845,11 @@ void main() {
       'data': <String, Object>{'A': 'B'}
     });
     expect(fakeVmServiceHost.hasRemainingExpectations, false);
+  }, overrides: <Type, Generator>{
+    FileSystemUtils: () => FileSystemUtils(
+      fileSystem: globals.fs,
+      platform: globals.platform,
+    )
   }));
 
   testUsingContext('ResidentRunner can take screenshot on debug device', () => testbed.run(() async {
diff --git a/packages/flutter_tools/test/general.shard/resident_web_runner_test.dart b/packages/flutter_tools/test/general.shard/resident_web_runner_test.dart
index 21faf56cb2..17d0ea3ade 100644
--- a/packages/flutter_tools/test/general.shard/resident_web_runner_test.dart
+++ b/packages/flutter_tools/test/general.shard/resident_web_runner_test.dart
@@ -16,6 +16,7 @@ import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/build_runner/devfs_web.dart';
 import 'package:flutter_tools/src/build_runner/resident_web_runner.dart';
 import 'package:flutter_tools/src/compile.dart';
+import 'package:flutter_tools/src/dart/package_map.dart';
 import 'package:flutter_tools/src/dart/pub.dart';
 import 'package:flutter_tools/src/devfs.dart';
 import 'package:flutter_tools/src/device.dart';
@@ -115,6 +116,9 @@ void main() {
     });
     testbed = Testbed(
       setup: () {
+        globals.fs.file(globalPackagesPath)
+          ..createSync(recursive: true)
+          ..writeAsStringSync('\n');
         residentWebRunner = DwdsWebRunnerFactory().createWebRunner(
           mockFlutterDevice,
           flutterProject: FlutterProject.current(),
diff --git a/packages/flutter_tools/test/general.shard/web/devfs_web_test.dart b/packages/flutter_tools/test/general.shard/web/devfs_web_test.dart
index 53d4cfb600..e6baf6524e 100644
--- a/packages/flutter_tools/test/general.shard/web/devfs_web_test.dart
+++ b/packages/flutter_tools/test/general.shard/web/devfs_web_test.dart
@@ -43,7 +43,9 @@ void main() {
   MockHttpServer mockHttpServer;
 
   setUpAll(() async {
-    packages = await loadPackageConfigUri(Uri.base.resolve('.packages'));
+    packages = PackageConfig(<Package>[
+      Package('flutter_tools', Uri.file('/flutter_tools/lib/').normalizePath())
+    ]);
   });
 
   setUp(() {