Limit 10 second future modification-date in integration test to only where...

Limit 10 second future modification-date in integration test to only where required for reloads (#91300)

This prevents all of the `flutter run` calls immediately re-running `flutter pub get` when it has already been run by test setup code.

packages/flutter_tools/test/integration.shard/test_data/background_project.dart

@@ -103,6 +103,10 @@ class RepeatingBackgroundProject extends Project {
 
   void updateTestIsolatePhrase(String message) {
     final String newMainContents = main.replaceFirst('Isolate thread', message);
-    writeFile(fileSystem.path.join(dir.path, 'lib', 'main.dart'), newMainContents);
+    writeFile(
+      fileSystem.path.join(dir.path, 'lib', 'main.dart'),
+      newMainContents,
+      writeFutureModifiedDate: true,
+    );
   }
 }

packages/flutter_tools/test/integration.shard/test_data/hot_reload_const_project.dart

@@ -53,6 +53,10 @@ class HotReloadConstProject extends Project {
       'final int field = 2;',
       '// final int field = 2;',
     );
-    writeFile(fileSystem.path.join(dir.path, 'lib', 'main.dart'), newMainContents);
+    writeFile(
+      fileSystem.path.join(dir.path, 'lib', 'main.dart'),
+      newMainContents,
+      writeFutureModifiedDate: true,
+    );
   }
 }

packages/flutter_tools/test/integration.shard/test_data/hot_reload_project.dart

@@ -95,6 +95,10 @@ class HotReloadProject extends Project {
       '// printHotReloadWorked();',
       'printHotReloadWorked();',
     );
-    writeFile(fileSystem.path.join(dir.path, 'lib', 'main.dart'), newMainContents);
+    writeFile(
+      fileSystem.path.join(dir.path, 'lib', 'main.dart'),
+      newMainContents,
+      writeFutureModifiedDate: true,
+    );
   }
 }

packages/flutter_tools/test/integration.shard/test_data/hot_reload_with_asset.dart

@@ -55,6 +55,10 @@ class MyApp extends StatelessWidget {
       'LOADED DATA',
       'SECOND DATA',
     );
-    writeFile(fileSystem.path.join(dir.path, 'lib', 'main.dart'), newMainContents);
+    writeFile(
+      fileSystem.path.join(dir.path, 'lib', 'main.dart'),
+      newMainContents,
+      writeFutureModifiedDate: true,
+    );
   }
 }

packages/flutter_tools/test/integration.shard/test_data/single_widget_reload_project.dart

@@ -75,7 +75,11 @@ class SingleWidgetReloadProject extends Project {
       '// printHotReloadWorked();',
       'printHotReloadWorked();',
     );
-    writeFile(fileSystem.path.join(dir.path, 'lib', 'main.dart'), newMainContents);
+    writeFile(
+      fileSystem.path.join(dir.path, 'lib', 'main.dart'),
+      newMainContents,
+      writeFutureModifiedDate: true,
+    );
   }
 
   void modifyFunction() {
@@ -83,6 +87,10 @@ class SingleWidgetReloadProject extends Project {
       '(((((RELOAD WORKED)))))',
       '(((((RELOAD WORKED 2)))))',
     );
-    writeFile(fileSystem.path.join(dir.path, 'lib', 'main.dart'), newMainContents);
+    writeFile(
+      fileSystem.path.join(dir.path, 'lib', 'main.dart'),
+      newMainContents,
+      writeFutureModifiedDate: true,
+    );
   }
 }

packages/flutter_tools/test/integration.shard/test_data/stateless_stateful_project.dart

@@ -74,6 +74,10 @@ class HotReloadProject extends Project {
 
   void toggleState() {
     stateful = !stateful;
-    writeFile(fileSystem.path.join(dir.path, 'lib', 'main.dart'), getCode(stateful));
+    writeFile(
+      fileSystem.path.join(dir.path, 'lib', 'main.dart'),
+      getCode(stateful),
+      writeFutureModifiedDate: true,
+    );
   }
 }

packages/flutter_tools/test/integration.shard/test_utils.dart

@@ -33,18 +33,22 @@ Directory createResolvedTempDirectorySync(String prefix) {
   return fileSystem.directory(tempDirectory.resolveSymbolicLinksSync());
 }
 
-void writeFile(String path, String content) {
-  fileSystem.file(path)
+void writeFile(String path, String content, {bool writeFutureModifiedDate = false}) {
+  final File file = fileSystem.file(path)
     ..createSync(recursive: true)
-    ..writeAsStringSync(content)
-    ..setLastModifiedSync(DateTime.now().add(const Duration(seconds: 10)));
+    ..writeAsStringSync(content);
+    // Some integration tests on Windows to not see this file as being modified
+    // recently enough for the hot reload to pick this change up unless the
+    // modified time is written in the future.
+    if (writeFutureModifiedDate) {
+      file.setLastModifiedSync(DateTime.now().add(const Duration(seconds: 5)));
+    }
 }
 
 void writeBytesFile(String path, List<int> content) {
   fileSystem.file(path)
     ..createSync(recursive: true)
-    ..writeAsBytesSync(content)
-    ..setLastModifiedSync(DateTime.now().add(const Duration(seconds: 10)));
+    ..writeAsBytesSync(content);
 }
 
 void writePackages(String folder) {