1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
// Copyright 2014 The Flutter 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/widgets.dart';
void main() {
testWidgets('DefaultTextStyle changes propagate to Text', (WidgetTester tester) async {
const Text textWidget = Text('Hello', textDirection: TextDirection.ltr);
const TextStyle s1 = TextStyle(
fontSize: 10.0,
fontWeight: FontWeight.w800,
height: 123.0,
);
await tester.pumpWidget(const DefaultTextStyle(
style: s1,
child: textWidget,
));
RichText text = tester.firstWidget(find.byType(RichText));
expect(text, isNotNull);
expect(text.text.style, s1);
await tester.pumpWidget(const DefaultTextStyle(
style: s1,
textAlign: TextAlign.justify,
softWrap: false,
overflow: TextOverflow.fade,
maxLines: 3,
child: textWidget,
));
text = tester.firstWidget(find.byType(RichText));
expect(text, isNotNull);
expect(text.text.style, s1);
expect(text.textAlign, TextAlign.justify);
expect(text.softWrap, false);
expect(text.overflow, TextOverflow.fade);
expect(text.maxLines, 3);
});
testWidgets('AnimatedDefaultTextStyle changes propagate to Text', (WidgetTester tester) async {
const Text textWidget = Text('Hello', textDirection: TextDirection.ltr);
const TextStyle s1 = TextStyle(
fontSize: 10.0,
fontWeight: FontWeight.w800,
height: 123.0,
);
const TextStyle s2 = TextStyle(
fontSize: 20.0,
fontWeight: FontWeight.w200,
height: 1.0,
);
await tester.pumpWidget(const AnimatedDefaultTextStyle(
style: s1,
child: textWidget,
duration: Duration(milliseconds: 1000),
));
final RichText text1 = tester.firstWidget(find.byType(RichText));
expect(text1, isNotNull);
expect(text1.text.style, s1);
expect(text1.textAlign, TextAlign.start);
expect(text1.softWrap, isTrue);
expect(text1.overflow, TextOverflow.clip);
expect(text1.maxLines, isNull);
await tester.pumpWidget(const AnimatedDefaultTextStyle(
style: s2,
textAlign: TextAlign.justify,
softWrap: false,
overflow: TextOverflow.fade,
maxLines: 3,
child: textWidget,
duration: Duration(milliseconds: 1000),
));
final RichText text2 = tester.firstWidget(find.byType(RichText));
expect(text2, isNotNull);
expect(text2.text.style, s1); // animation hasn't started yet
expect(text2.textAlign, TextAlign.justify);
expect(text2.softWrap, false);
expect(text2.overflow, TextOverflow.fade);
expect(text2.maxLines, 3);
await tester.pump(const Duration(milliseconds: 1000));
final RichText text3 = tester.firstWidget(find.byType(RichText));
expect(text3, isNotNull);
expect(text3.text.style, s2); // animation has now finished
expect(text3.textAlign, TextAlign.justify);
expect(text3.softWrap, false);
expect(text3.overflow, TextOverflow.fade);
expect(text3.maxLines, 3);
});
}