rsflutterapp

Bahnhofsfoto-App for Android and iOS using Flutter
git clone git://archive.git.mtrnord.blog/MTRNord/rsflutterapp.git
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utils.dart (3247B)

      1 import 'package:flutter/material.dart';
      2 import 'package:flutter_test/flutter_test.dart';
      3 
      4 class Utils {
      5   static printWidgets(WidgetTester tester) {
      6     debugPrint(tester.allWidgets.toList().join("\n").toString());
      7   }
      8 
      9   static bool isWidgetInWidgets(WidgetTester tester, Type widget) {
     10     debugPrint(tester.allWidgets
     11         .toList()
     12         .map((e) => e.runtimeType)
     13         .join("\n")
     14         .toString());
     15     return tester.allWidgets
     16         .toList()
     17         .map((e) => e.runtimeType)
     18         .contains(widget);
     19   }
     20 
     21   static Widget getWidgetWrapper(Widget child, TestObserver routeObserver) {
     22     return MaterialApp(
     23       title: "Fluffychat",
     24       theme: ThemeData(
     25         primarySwatch: Colors.blue,
     26       ),
     27       navigatorObservers: <NavigatorObserver>[routeObserver],
     28       home: child,
     29     );
     30   }
     31 
     32   static double getOpacity(WidgetTester tester, String textValue) {
     33     final FadeTransition opacityWidget = tester.widget<FadeTransition>(find
     34         .ancestor(
     35           of: find.text(textValue),
     36           matching: find.byType(FadeTransition),
     37         )
     38         .first);
     39     return opacityWidget.opacity.value;
     40   }
     41 
     42   static Future<Null> tapItem(WidgetTester tester, Key key) async {
     43     /// Tap the button which should open the PopupMenu.
     44     /// By calling tester.pumpAndSettle(), we ensure that all animations
     45     /// have completed before we continue further.
     46     await tester.tap(find.byKey(key));
     47     await tester.pumpAndSettle();
     48   }
     49 }
     50 
     51 typedef OnObservation = void Function(
     52     Route<dynamic> route, Route<dynamic> previousRoute);
     53 
     54 /// Example Usage:
     55 ///
     56 /// ```
     57 /// bool isPushed = false;
     58 //  bool isPopped = false;
     59 //
     60 //  final TestObserver observer = TestObserver()
     61 //    ..onPushed = (Route<dynamic> route, Route<dynamic> previousRoute) {
     62 //      // Pushes the initial route.
     63 //      expect(route is PageRoute && route.settings.name == '/', isTrue);
     64 //      expect(previousRoute, isNull);
     65 //      isPushed = true;
     66 //    }
     67 //    ..onPopped = (Route<dynamic> route, Route<dynamic> previousRoute) {
     68 //      isPopped = true;
     69 //    };
     70 /// ```
     71 ///
     72 class TestObserver extends NavigatorObserver {
     73   OnObservation onPushed;
     74   OnObservation onPopped;
     75   OnObservation onRemoved;
     76   OnObservation onReplaced;
     77 
     78   @override
     79   void didPush(Route<dynamic> route, Route<dynamic> previousRoute) {
     80     if (onPushed != null) {
     81       onPushed(route, previousRoute);
     82     }
     83   }
     84 
     85   @override
     86   void didPop(Route<dynamic> route, Route<dynamic> previousRoute) {
     87     if (onPopped != null) {
     88       onPopped(route, previousRoute);
     89     }
     90   }
     91 
     92   @override
     93   void didRemove(Route<dynamic> route, Route<dynamic> previousRoute) {
     94     if (onRemoved != null) onRemoved(route, previousRoute);
     95   }
     96 
     97   @override
     98   void didReplace({Route<dynamic> oldRoute, Route<dynamic> newRoute}) {
     99     if (onReplaced != null) onReplaced(newRoute, oldRoute);
    100   }
    101 }
    102 
    103 class RouteMatcher extends Matcher {
    104   final String expected;
    105   bool contains = false;
    106 
    107   RouteMatcher(this.expected, {this.contains});
    108 
    109   @override
    110   Description describe(Description description) {
    111     return null;
    112   }
    113 
    114   @override
    115   bool matches(covariant String item, Map matchState) {
    116     if (contains) {
    117       return item.toString().contains(expected);
    118     }
    119     return item == expected;
    120   }
    121 }