Fix tapping on a test in flutter run (#13397)

Also:

* Remove find.byIcon since it's identical to find.icon. (I sent mail to flutter-dev about this.)

* Fix IconData's operator== and hashCode, which had not been updated when we added fields.

* Add the byTooltip finder to the list of suggested finders.

* Make the suggested Key finder prettier.

examples/catalog/test/app_bar_bottom_test.dart

@@ -11,7 +11,7 @@ final int choiceCount = app_bar_bottom_sample.choices.length;
 IconData iconAt(int index) => app_bar_bottom_sample.choices[index].icon;
 
 Finder findChoiceCard(IconData icon) {
-  return find.descendant(of: find.byType(Card), matching: find.icon(icon));
+  return find.descendant(of: find.byType(Card), matching: find.byIcon(icon));
 }
 
 void main() {

examples/catalog/test/basic_app_bar_test.dart

@@ -12,11 +12,11 @@ IconData iconAt(int index) => basic_app_bar_sample.choices[index].icon;
 String titleAt(int index) => basic_app_bar_sample.choices[index].title;
 
 Finder findAppBarIcon(IconData icon) {
-  return find.descendant(of: find.byType(AppBar), matching: find.icon(icon));
+  return find.descendant(of: find.byType(AppBar), matching: find.byIcon(icon));
 }
 
 Finder findChoiceCard(IconData icon) {
-  return find.descendant(of: find.byType(Card), matching: find.icon(icon));
+  return find.descendant(of: find.byType(Card), matching: find.byIcon(icon));
 }
 
 void main() {

examples/catalog/test/tabbed_app_bar_test.dart

@@ -11,11 +11,11 @@ final int choiceCount = tabbed_app_bar_sample.choices.length;
 IconData iconAt(int index) => tabbed_app_bar_sample.choices[index].icon;
 
 Finder findChoiceCard(IconData icon) {
-  return find.descendant(of: find.byType(Card), matching: find.icon(icon));
+  return find.descendant(of: find.byType(Card), matching: find.byIcon(icon));
 }
 
 Finder findTab(IconData icon) {
-  return find.descendant(of: find.byType(Tab), matching: find.icon(icon));
+  return find.descendant(of: find.byType(Tab), matching: find.byIcon(icon));
 }
 
 void main() {

packages/flutter/lib/src/widgets/icon_data.dart

@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'dart:ui' show hashValues;
+
 import 'package:flutter/foundation.dart';
 
 /// A description of an icon fulfilled by a font glyph.
@@ -52,11 +54,14 @@ class IconData {
     if (runtimeType != other.runtimeType)
       return false;
     final IconData typedOther = other;
-    return codePoint == typedOther.codePoint;
+    return codePoint == typedOther.codePoint
+        && fontFamily == typedOther.fontFamily
+        && fontPackage == typedOther.fontPackage
+        && matchTextDirection == typedOther.matchTextDirection;
   }
 
   @override
-  int get hashCode => codePoint.hashCode;
+  int get hashCode => hashValues(codePoint, fontFamily, fontPackage, matchTextDirection);
 
   @override
   String toString() => 'IconData(U+${codePoint.toRadixString(16).toUpperCase().padLeft(5, '0')})';

packages/flutter/test/material/paginated_data_table_test.dart

@@ -80,7 +80,7 @@ void main() {
     expect(find.text('Eclair (0)'), findsOneWidget);
     expect(find.text('Gingerbread (0)'), findsNothing);
 
-    await tester.tap(find.icon(Icons.chevron_left));
+    await tester.tap(find.byIcon(Icons.chevron_left));
 
     expect(log, <String>['page-changed: 0']);
     log.clear();
@@ -91,7 +91,7 @@ void main() {
     expect(find.text('Eclair (0)'), findsNothing);
     expect(find.text('Gingerbread (0)'), findsNothing);
 
-    await tester.tap(find.icon(Icons.chevron_left));
+    await tester.tap(find.byIcon(Icons.chevron_left));
 
     expect(log, isEmpty);
 
@@ -188,7 +188,7 @@ void main() {
     expect(find.text('Gingerbread (1)'), findsNothing);
     expect(find.text('Gingerbread (2)'), findsOneWidget);
 
-    await tester.tap(find.icon(Icons.adjust));
+    await tester.tap(find.byIcon(Icons.adjust));
     expect(log, <String>['action: adjust']);
     log.clear();
   });

packages/flutter/test/widgets/icon_test.dart

@@ -192,4 +192,16 @@ void main() {
     // semanticLabel to make sure the subtree was not rebuilt.
     expect(richText2, same(richText1));
   });
+
+  testWidgets('IconData comparison', (WidgetTester tester) async {
+    expect(const IconData(123), const IconData(123));
+    expect(const IconData(123), isNot(const IconData(123, matchTextDirection: true)));
+    expect(const IconData(123), isNot(const IconData(123, fontFamily: 'f')));
+    expect(const IconData(123), isNot(const IconData(123, fontPackage: 'p')));
+    expect(const IconData(123).hashCode, const IconData(123).hashCode);
+    expect(const IconData(123).hashCode, isNot(const IconData(123, matchTextDirection: true).hashCode));
+    expect(const IconData(123).hashCode, isNot(const IconData(123, fontFamily: 'f').hashCode));
+    expect(const IconData(123).hashCode, isNot(const IconData(123, fontPackage: 'p').hashCode));
+    expect(const IconData(123).toString(), 'IconData(U+0007B)');
+  });
 }

packages/flutter_test/lib/src/binding.dart

@@ -984,8 +984,9 @@ class TestViewConfiguration extends ViewConfiguration {
       super(size: size);
 
   static Matrix4 _getMatrix(Size size, double devicePixelRatio) {
-    final double actualWidth = ui.window.physicalSize.width;
-    final double actualHeight = ui.window.physicalSize.height;
+    final double inverseRatio = devicePixelRatio / ui.window.devicePixelRatio;
+    final double actualWidth = ui.window.physicalSize.width * inverseRatio;
+    final double actualHeight = ui.window.physicalSize.height * inverseRatio;
     final double desiredWidth = size.width;
     final double desiredHeight = size.height;
     double scale, shiftX, shiftY;
@@ -1020,8 +1021,6 @@ class TestViewConfiguration extends ViewConfiguration {
   ///
   /// This is useful because pointers are described in logical pixels, as
   /// opposed to graphics which are expressed in physical pixels.
-  // TODO(ianh): We should make graphics and pointers use the same coordinate space.
-  //             See: https://github.com/flutter/flutter/issues/1360
   Matrix4 toHitTestMatrix() => _hitTestMatrix.clone();
 
   @override

packages/flutter_test/lib/src/finders.dart

@@ -34,17 +34,6 @@ class CommonFinders {
   /// nodes that are [Offstage] or that are from inactive [Route]s.
   Finder text(String text, { bool skipOffstage: true }) => new _TextFinder(text, skipOffstage: skipOffstage);
 
-  /// Finds [Icon] widgets containing icon data equal to the `icon`
-  /// argument.
-  ///
-  /// Example:
-  ///
-  ///     expect(find.icon(Icons.chevron_left), findsOneWidget);
-  ///
-  /// If the `skipOffstage` argument is true (the default), then this skips
-  /// nodes that are [Offstage] or that are from inactive [Route]s.
-  Finder icon(IconData icon, { bool skipOffstage: true }) => new _IconFinder(icon, skipOffstage: skipOffstage);
-
   /// Looks for widgets that contain a [Text] descendant with `text`
   /// in it.
   ///
@@ -90,7 +79,8 @@ class CommonFinders {
   /// nodes that are [Offstage] or that are from inactive [Route]s.
   Finder byType(Type type, { bool skipOffstage: true }) => new _WidgetTypeFinder(type, skipOffstage: skipOffstage);
 
-  /// Finds widgets by searching for widgets with a particular icon data.
+  /// Finds [Icon] widgets containing icon data equal to the `icon`
+  /// argument.
   ///
   /// Example:
   ///
@@ -421,23 +411,6 @@ class _TextFinder extends MatchFinder {
   }
 }
 
-class _IconFinder extends MatchFinder {
-  _IconFinder(this.icon, { bool skipOffstage: true }) : super(skipOffstage: skipOffstage);
-
-  final IconData icon;
-
-  @override
-  String get description => 'icon "$icon"';
-
-  @override
-  bool matches(Element candidate) {
-    if (candidate.widget is! Icon)
-      return false;
-    final Icon iconWidget = candidate.widget;
-    return iconWidget.icon == icon;
-  }
-}
-
 class _WidgetWithTextFinder extends Finder {
   _WidgetWithTextFinder(this.widgetType, this.text, { bool skipOffstage: true }) : super(skipOffstage: skipOffstage);
 

packages/flutter_test/lib/src/widget_tester.dart

@@ -5,6 +5,7 @@
 import 'dart:async';
 
 import 'package:flutter/gestures.dart';
+import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/scheduler.dart';
 import 'package:flutter/widgets.dart';
@@ -306,12 +307,18 @@ class WidgetTester extends WidgetController implements HitTestDispatcher, Ticker
     if (event is PointerDownEvent) {
       final RenderObject innerTarget = result.path.firstWhere(
         (HitTestEntry candidate) => candidate.target is RenderObject,
-        orElse: () => null
-      )?.target;
-      if (innerTarget == null)
-        return null;
-      final Element innerTargetElement = collectAllElementsFrom(binding.renderViewElement, skipOffstage: true)
-        .lastWhere((Element element) => element.renderObject == innerTarget);
+      ).target;
+      final Element innerTargetElement = collectAllElementsFrom(
+        binding.renderViewElement,
+        skipOffstage: true,
+      ).lastWhere(
+        (Element element) => element.renderObject == innerTarget,
+        orElse: () => null,
+      );
+      if (innerTargetElement == null) {
+        debugPrint('No widgets found at ${binding.globalToLocal(event.position)}.');
+        return;
+      }
       final List<Element> candidates = <Element>[];
       innerTargetElement.visitAncestorElements((Element element) {
         candidates.add(element);
@@ -324,9 +331,18 @@ class WidgetTester extends WidgetController implements HitTestDispatcher, Ticker
       int totalNumber = 0;
       debugPrint('Some possible finders for the widgets at ${binding.globalToLocal(event.position)}:');
       for (Element element in candidates) {
-        if (totalNumber > 10)
+        if (totalNumber > 13) // an arbitrary number of finders that feels useful without being overwhelming
           break;
-        totalNumber += 1;
+        totalNumber += 1; // optimistically assume we'll be able to describe it
+
+        if (element.widget is Tooltip) {
+          final Tooltip widget = element.widget;
+          final Iterable<Element> matches = find.byTooltip(widget.message).evaluate();
+          if (matches.length == 1) {
+            debugPrint('  find.byTooltip(\'${widget.message}\')');
+            continue;
+          }
+        }
 
         if (element.widget is Text) {
           assert(descendantText == null);
@@ -347,7 +363,7 @@ class WidgetTester extends WidgetController implements HitTestDispatcher, Ticker
                key is ValueKey<bool>)) {
             keyLabel = 'const ${element.widget.key.runtimeType}(${key.value})';
           } else if (key is ValueKey<String>) {
-            keyLabel = 'const ${element.widget.key.runtimeType}(\'${key.value}\')';
+            keyLabel = 'const Key(\'${key.value}\')';
           }
           if (keyLabel != null) {
             final Iterable<Element> matches = find.byKey(key).evaluate();