Missing trailing commas (#41473)

* add missing trailing commas

* add more missing trailing commas

* add more and more missing trailing commas

packages/flutter_tools/test/general.shard/android/gradle_test.dart

diff --git a/packages/flutter_tools/test/general.shard/android/gradle_test.dart b/packages/flutter_tools/test/general.shard/android/gradle_test.dart
index a32bc5a..f8afc24 100644
--- a/packages/flutter_tools/test/general.shard/android/gradle_test.dart
+++ b/packages/flutter_tools/test/general.shard/android/gradle_test.dart
@@ -1379,8 +1379,8 @@
       when(mockProcessManager.run(
         any,
         environment: anyNamed('environment'),
-        workingDirectory: anyNamed('workingDirectory'))
-      ).thenAnswer(
+        workingDirectory: anyNamed('workingDirectory'),
+      )).thenAnswer(
           (_) async => ProcessResult(1, 0, '', ''),
       );
       fs.directory('build/outputs/repo').createSync(recursive: true);

packages/flutter_tools/test/general.shard/base/net_test.dart

diff --git a/packages/flutter_tools/test/general.shard/base/net_test.dart b/packages/flutter_tools/test/general.shard/base/net_test.dart
index a2ce132..76fee72 100644
--- a/packages/flutter_tools/test/general.shard/base/net_test.dart
+++ b/packages/flutter_tools/test/general.shard/base/net_test.dart
@@ -127,7 +127,7 @@
     ),
     Platform: () => FakePlatform.fromPlatform(const LocalPlatform())
       ..environment = <String, String>{
-        'FLUTTER_STORAGE_BASE_URL': 'example.invalid'
+        'FLUTTER_STORAGE_BASE_URL': 'example.invalid',
       },
   });
 

packages/flutter_tools/test/general.shard/build_system/build_system_test.dart

diff --git a/packages/flutter_tools/test/general.shard/build_system/build_system_test.dart b/packages/flutter_tools/test/general.shard/build_system/build_system_test.dart
index a14bc8b..ff679ca 100644
--- a/packages/flutter_tools/test/general.shard/build_system/build_system_test.dart
+++ b/packages/flutter_tools/test/general.shard/build_system/build_system_test.dart
@@ -121,7 +121,7 @@
         Source.pattern('{PROJECT_DIR}/foo.dart'),
       ]
       ..outputs = const <Source>[
-        Source.pattern('{BUILD_DIR}/out')
+        Source.pattern('{BUILD_DIR}/out'),
       ];
     final BuildResult result = await buildSystem.build(badTarget, environment);
 
@@ -293,7 +293,7 @@
     environment.buildDir.createSync(recursive: true);
     expect(fooTarget.toJson(environment), <String, dynamic>{
       'inputs':  <Object>[
-        '/foo.dart'
+        '/foo.dart',
       ],
       'outputs': <Object>[
         fs.path.join(environment.buildDir.path, 'out'),

packages/flutter_tools/test/general.shard/commands/build_apk_test.dart

diff --git a/packages/flutter_tools/test/general.shard/commands/build_apk_test.dart b/packages/flutter_tools/test/general.shard/commands/build_apk_test.dart
index 52647d9..6dfa757 100644
--- a/packages/flutter_tools/test/general.shard/commands/build_apk_test.dart
+++ b/packages/flutter_tools/test/general.shard/commands/build_apk_test.dart
@@ -223,7 +223,7 @@
           createMockProcess(
             exitCode: 1,
             stdout: r8StdoutWarning,
-          )
+          ),
         );
       });
 

packages/flutter_tools/test/general.shard/commands/build_appbundle_test.dart

diff --git a/packages/flutter_tools/test/general.shard/commands/build_appbundle_test.dart b/packages/flutter_tools/test/general.shard/commands/build_appbundle_test.dart
index a7fbbe4..2d271dd 100644
--- a/packages/flutter_tools/test/general.shard/commands/build_appbundle_test.dart
+++ b/packages/flutter_tools/test/general.shard/commands/build_appbundle_test.dart
@@ -212,7 +212,7 @@
           createMockProcess(
             exitCode: 1,
             stdout: r8StdoutWarning,
-          )
+          ),
         );
       });
 

packages/flutter_tools/test/general.shard/commands/precache_test.dart

diff --git a/packages/flutter_tools/test/general.shard/commands/precache_test.dart b/packages/flutter_tools/test/general.shard/commands/precache_test.dart
index 1b1fc25..128662e 100644
--- a/packages/flutter_tools/test/general.shard/commands/precache_test.dart
+++ b/packages/flutter_tools/test/general.shard/commands/precache_test.dart
@@ -37,7 +37,7 @@
           '--windows',
           '--fuchsia',
           '--flutter_runner',
-        ]
+        ],
       );
       expect(artifacts, unorderedEquals(<DevelopmentArtifact>{
         DevelopmentArtifact.universal,
@@ -67,7 +67,7 @@
           'precache',
           '--no-ios',
           '--android',
-        ]
+        ],
       );
       expect(artifacts, unorderedEquals(<DevelopmentArtifact>{
         DevelopmentArtifact.universal,
@@ -92,7 +92,7 @@
           '--android_gen_snapshot',
           '--android_maven',
           '--android_internal_build',
-        ]
+        ],
       );
       expect(artifacts, unorderedEquals(<DevelopmentArtifact>{
         DevelopmentArtifact.universal,
@@ -125,7 +125,7 @@
           '--windows',
           '--fuchsia',
           '--flutter_runner',
-        ]
+        ],
       );
       expect(artifacts, unorderedEquals(<DevelopmentArtifact>{
         DevelopmentArtifact.universal,

packages/flutter_tools/test/general.shard/compile_expression_test.dart

diff --git a/packages/flutter_tools/test/general.shard/compile_expression_test.dart b/packages/flutter_tools/test/general.shard/compile_expression_test.dart
index 1d8b936..a77404d 100644
--- a/packages/flutter_tools/test/general.shard/compile_expression_test.dart
+++ b/packages/flutter_tools/test/general.shard/compile_expression_test.dart
@@ -167,7 +167,7 @@
           expect(outputExpression.errorCount, 0);
           lastExpressionCompleted.complete(true);
         },
-      )
+      ),
     );
 
     compileResponseCompleter.complete(Future<List<int>>.value(utf8.encode(

packages/flutter_tools/test/general.shard/devfs_test.dart

diff --git a/packages/flutter_tools/test/general.shard/devfs_test.dart b/packages/flutter_tools/test/general.shard/devfs_test.dart
index 351d6c8..a892efa 100644
--- a/packages/flutter_tools/test/general.shard/devfs_test.dart
+++ b/packages/flutter_tools/test/general.shard/devfs_test.dart
@@ -415,4 +415,4 @@
 class MockOddlyFailingHttpClient extends Mock implements HttpClient {}
 class MockHttpClientRequest extends Mock implements HttpClientRequest {}
 class MockHttpHeaders extends Mock implements HttpHeaders {}
-class MockHttpClientResponse extends Mock implements HttpClientResponse {}
\ No newline at end of file
+class MockHttpClientResponse extends Mock implements HttpClientResponse {}

packages/flutter_tools/test/general.shard/doctor.dart

diff --git a/packages/flutter_tools/test/general.shard/doctor.dart b/packages/flutter_tools/test/general.shard/doctor.dart
index db574e6..bd5d563 100644
--- a/packages/flutter_tools/test/general.shard/doctor.dart
+++ b/packages/flutter_tools/test/general.shard/doctor.dart
@@ -27,7 +27,7 @@
     FeatureFlags: () => TestFeatureFlags(
       isLinuxEnabled: true,
       isWindowsEnabled: true,
-    )
+    ),
   }));
 
   test('doctor validators does not include desktop when features are enabled', () => testbed.run(() {
@@ -39,7 +39,7 @@
     FeatureFlags: () => TestFeatureFlags(
       isLinuxEnabled: false,
       isWindowsEnabled: false,
-    )
+    ),
   }));
 
   test('doctor validators includes web when feature is enabled', () => testbed.run(() {
@@ -48,7 +48,7 @@
   }, overrides: <Type, Generator>{
     FeatureFlags: () => TestFeatureFlags(
       isWebEnabled: true,
-    )
+    ),
   }));
 
   test('doctor validators does not include web when feature is disabled', () => testbed.run(() {
@@ -57,6 +57,6 @@
   }, overrides: <Type, Generator>{
     FeatureFlags: () => TestFeatureFlags(
       isWebEnabled: false,
-    )
+    ),
   }));
 }

packages/flutter_tools/test/general.shard/ios/devices_test.dart

diff --git a/packages/flutter_tools/test/general.shard/ios/devices_test.dart b/packages/flutter_tools/test/general.shard/ios/devices_test.dart
index 48e61f6..2e35e21 100644
--- a/packages/flutter_tools/test/general.shard/ios/devices_test.dart
+++ b/packages/flutter_tools/test/general.shard/ios/devices_test.dart
@@ -127,14 +127,14 @@
             mockArtifacts.getArtifactPath(
                 Artifact.ideviceinstaller,
                 platform: anyNamed('platform'),
-            )
+            ),
         ).thenReturn(installerPath);
 
         when(
             mockArtifacts.getArtifactPath(
                 Artifact.iosDeploy,
                 platform: anyNamed('platform'),
-            )
+            ),
         ).thenReturn(iosDeployPath);
 
         when(mockPortForwarder.forward(devicePort, hostPort: anyNamed('hostPort')))
@@ -411,7 +411,7 @@
             mockArtifacts.getArtifactPath(
                 Artifact.ideviceinstaller,
                 platform: anyNamed('platform'),
-            )
+            ),
         ).thenReturn(installerPath);
       });
 

packages/flutter_tools/test/general.shard/linux/linux_workflow_test.dart

diff --git a/packages/flutter_tools/test/general.shard/linux/linux_workflow_test.dart b/packages/flutter_tools/test/general.shard/linux/linux_workflow_test.dart
index 8723c47..7f967b2 100644
--- a/packages/flutter_tools/test/general.shard/linux/linux_workflow_test.dart
+++ b/packages/flutter_tools/test/general.shard/linux/linux_workflow_test.dart
@@ -25,7 +25,7 @@
       overrides: <Type, Generator>{
         Platform: () => linux,
         FeatureFlags: () => TestFeatureFlags(isLinuxEnabled: true),
-      }
+      },
     );
   });
 

packages/flutter_tools/test/general.shard/resident_runner_test.dart

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 65aafe1..b86a76a 100644
--- a/packages/flutter_tools/test/general.shard/resident_runner_test.dart
+++ b/packages/flutter_tools/test/general.shard/resident_runner_test.dart
@@ -81,7 +81,7 @@
     });
     when(mockFlutterDevice.devFS).thenReturn(mockDevFS);
     when(mockFlutterDevice.views).thenReturn(<FlutterView>[
-      mockFlutterView
+      mockFlutterView,
     ]);
     when(mockFlutterDevice.device).thenReturn(mockDevice);
     when(mockFlutterView.uiIsolate).thenReturn(mockIsolate);

packages/flutter_tools/test/general.shard/resident_web_runner_test.dart

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 c839508..3e678d9 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
@@ -155,7 +155,7 @@
         'type': 'Event',
         'kind': 'WriteEvent',
         'timestamp': 1569473488296,
-        'bytes': base64.encode('THIS MESSAGE IS IMPORTANT'.codeUnits)
+        'bytes': base64.encode('THIS MESSAGE IS IMPORTANT'.codeUnits),
       }));
     });
     unawaited(residentWebRunner.run(

packages/flutter_tools/test/general.shard/web/asset_server_test.dart

diff --git a/packages/flutter_tools/test/general.shard/web/asset_server_test.dart b/packages/flutter_tools/test/general.shard/web/asset_server_test.dart
index d475f0a..c098802 100644
--- a/packages/flutter_tools/test/general.shard/web/asset_server_test.dart
+++ b/packages/flutter_tools/test/general.shard/web/asset_server_test.dart
@@ -33,7 +33,7 @@
 
     expect(response.headers, <String, String>{
       'Content-Type': 'text/html',
-      'content-length': '5'
+      'content-length': '5',
     });
     expect(await response.readAsString(), 'hello');
   }));

packages/flutter_tools/test/general.shard/web/chrome_test.dart

diff --git a/packages/flutter_tools/test/general.shard/web/chrome_test.dart b/packages/flutter_tools/test/general.shard/web/chrome_test.dart
index de4d53a..ba6b7bb 100644
--- a/packages/flutter_tools/test/general.shard/web/chrome_test.dart
+++ b/packages/flutter_tools/test/general.shard/web/chrome_test.dart
@@ -37,7 +37,7 @@
       return 1234;
     });
     when(platform.environment).thenReturn(<String, String>{
-      kChromeEnvironment: 'example_chrome'
+      kChromeEnvironment: 'example_chrome',
     });
     final Directory mockDirectory = MockDirectory();
     when(fs.systemTempDirectory).thenReturn(mockDirectory);
@@ -61,7 +61,7 @@
         exitCode: Completer<int>().future,
         stdout: const Stream<List<int>>.empty(),
         stderr: Stream<List<int>>.fromIterable(<List<int>>[
-          utf8.encode('\n\nDevTools listening\n\n')
+          utf8.encode('\n\nDevTools listening\n\n'),
         ]),
       );
     });

packages/flutter_tools/test/general.shard/web/web_fs_test.dart

diff --git a/packages/flutter_tools/test/general.shard/web/web_fs_test.dart b/packages/flutter_tools/test/general.shard/web/web_fs_test.dart
index 475f594..e662c78 100644
--- a/packages/flutter_tools/test/general.shard/web/web_fs_test.dart
+++ b/packages/flutter_tools/test/general.shard/web/web_fs_test.dart
@@ -57,8 +57,8 @@
               DefaultBuildResult((DefaultBuildResultBuilder builder) {
                 builder.target = 'web';
                 builder.status = BuildStatus.succeeded;
-              })
-            ]
+              }),
+            ],
           );
         })
       ));
@@ -163,8 +163,8 @@
               DefaultBuildResult((DefaultBuildResultBuilder builder) {
                 builder.target = 'web';
                 builder.status = BuildStatus.failed;
-              })
-            ]
+              }),
+            ],
           );
         })
       ));

packages/flutter_tools/test/general.shard/web/web_validator_test.dart

diff --git a/packages/flutter_tools/test/general.shard/web/web_validator_test.dart b/packages/flutter_tools/test/general.shard/web/web_validator_test.dart
index c95972d..07ed413 100644
--- a/packages/flutter_tools/test/general.shard/web/web_validator_test.dart
+++ b/packages/flutter_tools/test/general.shard/web/web_validator_test.dart
@@ -50,7 +50,7 @@
       when(mockProcessManager.canRun(kMacOSExecutable)).thenReturn(false);
       final ValidationResult result = await webValidator.validate();
       expect(result.messages, <ValidationMessage>[
-        ValidationMessage.hint('CHROME_EXECUTABLE not set')
+        ValidationMessage.hint('CHROME_EXECUTABLE not set'),
       ]);
       expect(result.type, ValidationType.missing);
     }));

packages/flutter_tools/test/general.shard/windows/visual_studio_validator_test.dart

diff --git a/packages/flutter_tools/test/general.shard/windows/visual_studio_validator_test.dart b/packages/flutter_tools/test/general.shard/windows/visual_studio_validator_test.dart
index a128bdd..4d1f880 100644
--- a/packages/flutter_tools/test/general.shard/windows/visual_studio_validator_test.dart
+++ b/packages/flutter_tools/test/general.shard/windows/visual_studio_validator_test.dart
@@ -128,7 +128,7 @@
         userMessages.visualStudioMissing(
           visualStudio.workloadDescription,
           visualStudio.necessaryComponentDescriptions(validator.majorVersion),
-        )
+        ),
       );
       expect(result.messages.contains(expectedMessage), true);
       expect(result.type, ValidationType.missing);

packages/flutter_tools/test/general.shard/windows/windows_workflow_test.dart

diff --git a/packages/flutter_tools/test/general.shard/windows/windows_workflow_test.dart b/packages/flutter_tools/test/general.shard/windows/windows_workflow_test.dart
index 86a566b..f7bd240 100644
--- a/packages/flutter_tools/test/general.shard/windows/windows_workflow_test.dart
+++ b/packages/flutter_tools/test/general.shard/windows/windows_workflow_test.dart
@@ -26,7 +26,7 @@
       overrides: <Type, Generator>{
         Platform: () => windows,
         FeatureFlags: () => TestFeatureFlags(isWindowsEnabled: true),
-      }
+      },
     );
   });