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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter_test/flutter_test.dart';
import 'package:flutter/material.dart';
import 'package:test/test.dart';
void main() {
test('SnackBar control test', () {
testWidgets((WidgetTester tester) {
String helloSnackBar = 'Hello SnackBar';
Key tapTarget = new Key('tap-target');
tester.pumpWidget(new MaterialApp(
routes: <String, RouteBuilder>{
'/': (RouteArguments args) {
return new Scaffold(
body: new Builder(
builder: (BuildContext context) {
return new GestureDetector(
onTap: () {
Scaffold.of(context).showSnackBar(new SnackBar(
content: new Text(helloSnackBar),
duration: new Duration(seconds: 2)
));
},
behavior: HitTestBehavior.opaque,
child: new Container(
height: 100.0,
width: 100.0,
key: tapTarget
)
);
}
)
);
}
}
));
expect(tester.findText(helloSnackBar), isNull);
tester.tap(tester.findElementByKey(tapTarget));
expect(tester.findText(helloSnackBar), isNull);
tester.pump(); // schedule animation
expect(tester.findText(helloSnackBar), isNotNull);
tester.pump(); // begin animation
expect(tester.findText(helloSnackBar), isNotNull);
tester.pump(new Duration(milliseconds: 750)); // 0.75s // animation last frame; two second timer starts here
expect(tester.findText(helloSnackBar), isNotNull);
tester.pump(new Duration(milliseconds: 750)); // 1.50s
expect(tester.findText(helloSnackBar), isNotNull);
tester.pump(new Duration(milliseconds: 750)); // 2.25s
expect(tester.findText(helloSnackBar), isNotNull);
tester.pump(new Duration(milliseconds: 750)); // 3.00s // timer triggers to dismiss snackbar, reverse animation is scheduled
tester.pump(); // begin animation
expect(tester.findText(helloSnackBar), isNotNull); // frame 0 of dismiss animation
tester.pump(new Duration(milliseconds: 750)); // 3.75s // last frame of animation, snackbar removed from build
expect(tester.findText(helloSnackBar), isNull);
});
});
test('SnackBar twice test', () {
testWidgets((WidgetTester tester) {
int snackBarCount = 0;
Key tapTarget = new Key('tap-target');
tester.pumpWidget(new MaterialApp(
routes: <String, RouteBuilder>{
'/': (RouteArguments args) {
return new Scaffold(
body: new Builder(
builder: (BuildContext context) {
return new GestureDetector(
onTap: () {
snackBarCount += 1;
Scaffold.of(context).showSnackBar(new SnackBar(
content: new Text("bar$snackBarCount"),
duration: new Duration(seconds: 2)
));
},
behavior: HitTestBehavior.opaque,
child: new Container(
height: 100.0,
width: 100.0,
key: tapTarget
)
);
}
)
);
}
}
));
expect(tester.findText('bar1'), isNull);
expect(tester.findText('bar2'), isNull);
tester.tap(tester.findElementByKey(tapTarget)); // queue bar1
tester.tap(tester.findElementByKey(tapTarget)); // queue bar2
expect(tester.findText('bar1'), isNull);
expect(tester.findText('bar2'), isNull);
tester.pump(); // schedule animation for bar1
expect(tester.findText('bar1'), isNotNull);
expect(tester.findText('bar2'), isNull);
tester.pump(); // begin animation
expect(tester.findText('bar1'), isNotNull);
expect(tester.findText('bar2'), isNull);
tester.pump(new Duration(milliseconds: 750)); // 0.75s // animation last frame; two second timer starts here
expect(tester.findText('bar1'), isNotNull);
expect(tester.findText('bar2'), isNull);
tester.pump(new Duration(milliseconds: 750)); // 1.50s
expect(tester.findText('bar1'), isNotNull);
expect(tester.findText('bar2'), isNull);
tester.pump(new Duration(milliseconds: 750)); // 2.25s
expect(tester.findText('bar1'), isNotNull);
expect(tester.findText('bar2'), isNull);
tester.pump(new Duration(milliseconds: 750)); // 3.00s // timer triggers to dismiss snackbar, reverse animation is scheduled
tester.pump(); // begin animation
expect(tester.findText('bar1'), isNotNull);
expect(tester.findText('bar2'), isNull);
tester.pump(new Duration(milliseconds: 750)); // 3.75s // last frame of animation, snackbar removed from build, new snack bar put in its place
expect(tester.findText('bar1'), isNull);
expect(tester.findText('bar2'), isNotNull);
tester.pump(); // begin animation
expect(tester.findText('bar1'), isNull);
expect(tester.findText('bar2'), isNotNull);
tester.pump(new Duration(milliseconds: 750)); // 4.50s // animation last frame; two second timer starts here
expect(tester.findText('bar1'), isNull);
expect(tester.findText('bar2'), isNotNull);
tester.pump(new Duration(milliseconds: 750)); // 5.25s
expect(tester.findText('bar1'), isNull);
expect(tester.findText('bar2'), isNotNull);
tester.pump(new Duration(milliseconds: 750)); // 6.00s
expect(tester.findText('bar1'), isNull);
expect(tester.findText('bar2'), isNotNull);
tester.pump(new Duration(milliseconds: 750)); // 6.75s // timer triggers to dismiss snackbar, reverse animation is scheduled
tester.pump(); // begin animation
expect(tester.findText('bar1'), isNull);
expect(tester.findText('bar2'), isNotNull);
tester.pump(new Duration(milliseconds: 750)); // 7.50s // last frame of animation, snackbar removed from build, new snack bar put in its place
expect(tester.findText('bar1'), isNull);
expect(tester.findText('bar2'), isNull);
});
});
test('SnackBar cancel test', () {
testWidgets((WidgetTester tester) {
int snackBarCount = 0;
Key tapTarget = new Key('tap-target');
int time;
ScaffoldFeatureController<SnackBar> lastController;
tester.pumpWidget(new MaterialApp(
routes: <String, RouteBuilder>{
'/': (RouteArguments args) {
return new Scaffold(
body: new Builder(
builder: (BuildContext context) {
return new GestureDetector(
onTap: () {
snackBarCount += 1;
lastController = Scaffold.of(context).showSnackBar(new SnackBar(
content: new Text("bar$snackBarCount"),
duration: new Duration(seconds: time)
));
},
behavior: HitTestBehavior.opaque,
child: new Container(
height: 100.0,
width: 100.0,
key: tapTarget
)
);
}
)
);
}
}
));
expect(tester.findText('bar1'), isNull);
expect(tester.findText('bar2'), isNull);
time = 1000;
tester.tap(tester.findElementByKey(tapTarget)); // queue bar1
ScaffoldFeatureController<SnackBar> firstController = lastController;
time = 2;
tester.tap(tester.findElementByKey(tapTarget)); // queue bar2
expect(tester.findText('bar1'), isNull);
expect(tester.findText('bar2'), isNull);
tester.pump(); // schedule animation for bar1
expect(tester.findText('bar1'), isNotNull);
expect(tester.findText('bar2'), isNull);
tester.pump(); // begin animation
expect(tester.findText('bar1'), isNotNull);
expect(tester.findText('bar2'), isNull);
tester.pump(new Duration(milliseconds: 750)); // 0.75s // animation last frame; two second timer starts here
expect(tester.findText('bar1'), isNotNull);
expect(tester.findText('bar2'), isNull);
tester.pump(new Duration(milliseconds: 750)); // 1.50s
expect(tester.findText('bar1'), isNotNull);
expect(tester.findText('bar2'), isNull);
tester.pump(new Duration(milliseconds: 750)); // 2.25s
expect(tester.findText('bar1'), isNotNull);
expect(tester.findText('bar2'), isNull);
tester.pump(new Duration(milliseconds: 10000)); // 12.25s
expect(tester.findText('bar1'), isNotNull);
expect(tester.findText('bar2'), isNull);
firstController.close(); // snackbar is manually dismissed
tester.pump(new Duration(milliseconds: 750)); // 13.00s // reverse animation is scheduled
tester.pump(); // begin animation
expect(tester.findText('bar1'), isNotNull);
expect(tester.findText('bar2'), isNull);
tester.pump(new Duration(milliseconds: 750)); // 13.75s // last frame of animation, snackbar removed from build, new snack bar put in its place
expect(tester.findText('bar1'), isNull);
expect(tester.findText('bar2'), isNotNull);
tester.pump(); // begin animation
expect(tester.findText('bar1'), isNull);
expect(tester.findText('bar2'), isNotNull);
tester.pump(new Duration(milliseconds: 750)); // 14.50s // animation last frame; two second timer starts here
expect(tester.findText('bar1'), isNull);
expect(tester.findText('bar2'), isNotNull);
tester.pump(new Duration(milliseconds: 750)); // 15.25s
expect(tester.findText('bar1'), isNull);
expect(tester.findText('bar2'), isNotNull);
tester.pump(new Duration(milliseconds: 750)); // 16.00s
expect(tester.findText('bar1'), isNull);
expect(tester.findText('bar2'), isNotNull);
tester.pump(new Duration(milliseconds: 750)); // 16.75s // timer triggers to dismiss snackbar, reverse animation is scheduled
tester.pump(); // begin animation
expect(tester.findText('bar1'), isNull);
expect(tester.findText('bar2'), isNotNull);
tester.pump(new Duration(milliseconds: 750)); // 17.50s // last frame of animation, snackbar removed from build, new snack bar put in its place
expect(tester.findText('bar1'), isNull);
expect(tester.findText('bar2'), isNull);
});
});
}