Add ListTile debugFillProperties (#100765)

packages/flutter/lib/src/material/list_tile.dart

@@ -798,6 +798,39 @@ class ListTile extends StatelessWidget {
       ),
     );
   }
+
+  @override
+  void debugFillProperties(DiagnosticPropertiesBuilder properties) {
+    super.debugFillProperties(properties);
+    properties.add(DiagnosticsProperty<Widget>('leading', leading, defaultValue: null));
+    properties.add(DiagnosticsProperty<Widget>('title', title, defaultValue: null));
+    properties.add(DiagnosticsProperty<Widget>('subtitle', subtitle, defaultValue: null));
+    properties.add(DiagnosticsProperty<Widget>('trailing', trailing, defaultValue: null));
+    properties.add(FlagProperty('isThreeLine', value: isThreeLine, ifTrue:'THREE_LINE', ifFalse: 'TWO_LINE', showName: true, defaultValue: false));
+    properties.add(FlagProperty('dense', value: dense, ifTrue: 'true', ifFalse: 'false', showName: true));
+    properties.add(DiagnosticsProperty<VisualDensity>('visualDensity', visualDensity, defaultValue: null));
+    properties.add(DiagnosticsProperty<ShapeBorder>('shape', shape, defaultValue: null));
+    properties.add(DiagnosticsProperty<ListTileStyle>('style', style, defaultValue: null));
+    properties.add(ColorProperty('selectedColor', selectedColor, defaultValue: null));
+    properties.add(ColorProperty('iconColor', iconColor, defaultValue: null));
+    properties.add(ColorProperty('textColor', textColor, defaultValue: null));
+    properties.add(DiagnosticsProperty<EdgeInsetsGeometry>('contentPadding', contentPadding, defaultValue: null));
+    properties.add(FlagProperty('enabled', value: enabled, ifTrue: 'true', ifFalse: 'false', showName: true, defaultValue: true));
+    properties.add(DiagnosticsProperty<Function>('onTap', onTap, defaultValue: null));
+    properties.add(DiagnosticsProperty<Function>('onLongPress', onLongPress, defaultValue: null));
+    properties.add(DiagnosticsProperty<MouseCursor>('mouseCursor', mouseCursor, defaultValue: null));
+    properties.add(FlagProperty('selected', value: selected, ifTrue: 'true', ifFalse: 'false', showName: true, defaultValue: false));
+    properties.add(ColorProperty('focusColor', focusColor, defaultValue: null));
+    properties.add(ColorProperty('hoverColor', hoverColor, defaultValue: null));
+    properties.add(DiagnosticsProperty<FocusNode>('focusNode', focusNode, defaultValue: null));
+    properties.add(FlagProperty('autofocus', value: autofocus, ifTrue: 'true', ifFalse: 'false', showName: true, defaultValue: false));
+    properties.add(ColorProperty('tileColor', tileColor, defaultValue: null));
+    properties.add(ColorProperty('selectedTileColor', selectedTileColor, defaultValue: null));
+    properties.add(FlagProperty('enableFeedback', value: enableFeedback, ifTrue: 'true', ifFalse: 'false', showName: true));
+    properties.add(DoubleProperty('horizontalTitleGap', horizontalTitleGap, defaultValue: null));
+    properties.add(DoubleProperty('minVerticalPadding', minVerticalPadding, defaultValue: null));
+    properties.add(DoubleProperty('minLeadingWidth', minLeadingWidth, defaultValue: null));
+  }
 }
 
 // Identifies the children of a _ListTileElement.

packages/flutter/test/material/list_tile_test.dart

@@ -2228,6 +2228,78 @@ void main() {
     trailing = _getTextRenderObject(tester, 'trailing');
     expect(trailing.text.style!.color, theme.textTheme.bodyText2!.color);
   });
+
+  testWidgets('Default ListTile debugFillProperties', (WidgetTester tester) async {
+    final DiagnosticPropertiesBuilder builder = DiagnosticPropertiesBuilder();
+    const ListTile().debugFillProperties(builder);
+
+    final List<String> description = builder.properties
+      .where((DiagnosticsNode node) => !node.isFiltered(DiagnosticLevel.info))
+      .map((DiagnosticsNode node) => node.toString())
+      .toList();
+
+    expect(description, <String>[]);
+  });
+
+  testWidgets('ListTile implements debugFillProperties', (WidgetTester tester) async {
+    final DiagnosticPropertiesBuilder builder = DiagnosticPropertiesBuilder();
+    const ListTile(
+      leading: Text('leading'),
+      title: Text('title'),
+      subtitle: Text('trailing'),
+      trailing: Text('trailing'),
+      isThreeLine: true,
+      dense: true,
+      visualDensity: VisualDensity.standard,
+      shape: RoundedRectangleBorder(),
+      style: ListTileStyle.list,
+      selectedColor: Color(0xff0000ff),
+      iconColor: Color(0xff00ff00),
+      textColor: Color(0xffff0000),
+      contentPadding: EdgeInsets.zero,
+      enabled: false,
+      selected: true,
+      focusColor: Color(0xff00ffff),
+      hoverColor: Color(0xff0000ff),
+      autofocus: true,
+      tileColor: Color(0xffffff00),
+      selectedTileColor: Color(0xff123456),
+      enableFeedback: false,
+      horizontalTitleGap: 4.0,
+      minVerticalPadding: 2.0,
+      minLeadingWidth: 6.0,
+    ).debugFillProperties(builder);
+
+    final List<String> description = builder.properties
+      .where((DiagnosticsNode node) => !node.isFiltered(DiagnosticLevel.info))
+      .map((DiagnosticsNode node) => node.toString())
+      .toList();
+
+    expect(description[0], 'leading: Text');
+    expect(description[1], 'title: Text');
+    expect(description[2], 'subtitle: Text');
+    expect(description[3], 'trailing: Text');
+    expect(description[4], 'isThreeLine: THREE_LINE');
+    expect(description[5], 'dense: true');
+    expect(description[6], equalsIgnoringHashCodes('visualDensity: VisualDensity#00000(h: 0.0, v: 0.0)'));
+    expect(description[7], 'shape: RoundedRectangleBorder(BorderSide(Color(0xff000000), 0.0, BorderStyle.none), BorderRadius.zero)');
+    expect(description[8], 'style: ListTileStyle.list');
+    expect(description[9], 'selectedColor: Color(0xff0000ff)');
+    expect(description[10], 'iconColor: Color(0xff00ff00)');
+    expect(description[11], 'textColor: Color(0xffff0000)');
+    expect(description[12], 'contentPadding: EdgeInsets.zero');
+    expect(description[13], 'enabled: false');
+    expect(description[14], 'selected: true');
+    expect(description[15], 'focusColor: Color(0xff00ffff)');
+    expect(description[16], 'hoverColor: Color(0xff0000ff)');
+    expect(description[17], 'autofocus: true');
+    expect(description[18], 'tileColor: Color(0xffffff00)');
+    expect(description[19], 'selectedTileColor: Color(0xff123456)');
+    expect(description[20], 'enableFeedback: false');
+    expect(description[21], 'horizontalTitleGap: 4.0');
+    expect(description[22], 'minVerticalPadding: 2.0');
+    expect(description[23], 'minLeadingWidth: 6.0');
+  });
 }
 
 RenderParagraph _getTextRenderObject(WidgetTester tester, String text) {