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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | |
2 // for details. All rights reserved. Use of this source code is governed by a | |
3 // BSD-style license that can be found in the LICENSE file. | |
4 | |
5 library rect_test; | |
6 | |
7 import 'dart:math'; | |
8 import 'package:unittest/unittest.dart'; | |
9 | |
10 main() { | |
11 Rectangle createRectangle(List<num> a) { | |
12 return a != null ? new Rectangle(a[0], a[1], a[2] - a[0], a[3] - a[1]) | |
13 : null; | |
14 } | |
15 | |
16 test('construction', () { | |
17 var r0 = new Rectangle(10, 20, 30, 40); | |
18 expect(r0.toString(), 'Rectangle (10, 20) 30 x 40'); | |
19 expect(r0.right, 40); | |
20 expect(r0.bottom, 60); | |
21 | |
22 var r1 = new Rectangle.fromPoints(r0.topLeft, r0.bottomRight); | |
23 expect(r1, r0); | |
24 | |
25 var r2 = new Rectangle.fromPoints(r0.bottomRight, r0.topLeft); | |
26 expect(r2, r0); | |
27 }); | |
28 | |
29 test('intersection', () { | |
30 var tests = [ | |
31 [[10, 10, 20, 20], [15, 15, 25, 25], [15, 15, 20, 20]], | |
32 [[10, 10, 20, 20], [20, 0, 30, 10], [20, 10, 20, 10]], | |
33 [[0, 0, 1, 1], [10, 11, 12, 13], null], | |
34 [[11, 12, 98, 99], [22, 23, 34, 35], [22, 23, 34, 35]]]; | |
35 | |
36 for (var test in tests) { | |
37 var r0 = createRectangle(test[0]); | |
38 var r1 = createRectangle(test[1]); | |
39 var expected = createRectangle(test[2]); | |
40 | |
41 expect(r0.intersection(r1), expected); | |
42 expect(r1.intersection(r0), expected); | |
43 } | |
44 }); | |
45 | |
46 test('intersects', () { | |
47 var r0 = new Rectangle(10, 10, 20, 20); | |
48 var r1 = new Rectangle(15, 15, 25, 25); | |
49 var r2 = new Rectangle(0, 0, 1, 1); | |
50 | |
51 expect(r0.intersects(r1), isTrue); | |
52 expect(r1.intersects(r0), isTrue); | |
53 | |
54 expect(r0.intersects(r2), isFalse); | |
55 expect(r2.intersects(r0), isFalse); | |
56 }); | |
57 | |
58 test('union', () { | |
59 var tests = [ | |
60 [[10, 10, 20, 20], [15, 15, 25, 25], [10, 10, 25, 25]], | |
61 [[10, 10, 20, 20], [20, 0, 30, 10], [10, 0, 30, 20]], | |
62 [[0, 0, 1, 1], [10, 11, 12, 13], [0, 0, 12, 13]], | |
63 [[11, 12, 98, 99], [22, 23, 34, 35], [11, 12, 98, 99]]]; | |
64 | |
65 for (var test in tests) { | |
66 var r0 = createRectangle(test[0]); | |
67 var r1 = createRectangle(test[1]); | |
68 var expected = createRectangle(test[2]); | |
69 | |
70 expect(r0.union(r1), expected); | |
71 expect(r1.union(r0), expected); | |
72 } | |
73 }); | |
74 | |
75 test('containsRectangle', () { | |
76 var r = new Rectangle(-10, 0, 20, 10); | |
77 expect(r.contains(r), isTrue); | |
78 | |
79 expect(r.contains( | |
80 new Rectangle(double.NAN, double.NAN, double.NAN, double.NAN)), isFalse)
; | |
81 | |
82 var r2 = new Rectangle(0, 2, 5, 5); | |
83 expect(r.contains(r2), isTrue); | |
84 expect(r2.contains(r), isFalse); | |
85 | |
86 r2 = new Rectangle(-11, 2, 5, 5); | |
87 expect(r.contains(r2), isFalse); | |
88 r2 = new Rectangle(0, 2, 15, 5); | |
89 expect(r.contains(r2), isFalse); | |
90 r2 = new Rectangle(0, 2, 5, 10); | |
91 expect(r.contains(r2), isFalse); | |
92 r2 = new Rectangle(0, 0, 5, 10); | |
93 expect(r.contains(r2), isTrue); | |
94 }); | |
95 | |
96 test('containsPoint', () { | |
97 var r = new Rectangle(20, 40, 60, 80); | |
98 | |
99 // Test middle. | |
100 expect(r.containsPoint(new Point(50, 80)), isTrue); | |
101 | |
102 // Test edges. | |
103 expect(r.containsPoint(new Point(20, 40)), isTrue); | |
104 expect(r.containsPoint(new Point(50, 40)), isTrue); | |
105 expect(r.containsPoint(new Point(80, 40)), isTrue); | |
106 expect(r.containsPoint(new Point(80, 80)), isTrue); | |
107 expect(r.containsPoint(new Point(80, 120)), isTrue); | |
108 expect(r.containsPoint(new Point(50, 120)), isTrue); | |
109 expect(r.containsPoint(new Point(20, 120)), isTrue); | |
110 expect(r.containsPoint(new Point(20, 80)), isTrue); | |
111 | |
112 // Test outside. | |
113 expect(r.containsPoint(new Point(0, 0)), isFalse); | |
114 expect(r.containsPoint(new Point(50, 0)), isFalse); | |
115 expect(r.containsPoint(new Point(100, 0)), isFalse); | |
116 expect(r.containsPoint(new Point(100, 80)), isFalse); | |
117 expect(r.containsPoint(new Point(100, 160)), isFalse); | |
118 expect(r.containsPoint(new Point(50, 160)), isFalse); | |
119 expect(r.containsPoint(new Point(0, 160)), isFalse); | |
120 expect(r.containsPoint(new Point(0, 80)), isFalse); | |
121 }); | |
122 | |
123 test('ceil', () { | |
124 var rect = new Rectangle(11.4, 26.6, 17.8, 9.2); | |
125 expect(rect.ceil(), new Rectangle(12.0, 27.0, 18.0, 10.0)); | |
126 }); | |
127 | |
128 test('floor', () { | |
129 var rect = new Rectangle(11.4, 26.6, 17.8, 9.2); | |
130 expect(rect.floor(), new Rectangle(11.0, 26.0, 17.0, 9.0)); | |
131 }); | |
132 | |
133 test('round', () { | |
134 var rect = new Rectangle(11.4, 26.6, 17.8, 9.2); | |
135 expect(rect.round(), new Rectangle(11.0, 27.0, 18.0, 9.0)); | |
136 }); | |
137 | |
138 test('truncate', () { | |
139 var rect = new Rectangle(11.4, 26.6, 17.8, 9.2); | |
140 var b = rect.truncate(); | |
141 expect(b, new Rectangle(11, 26, 17, 9)); | |
142 | |
143 expect(b.left is int, isTrue); | |
144 expect(b.top is int, isTrue); | |
145 expect(b.width is int, isTrue); | |
146 expect(b.height is int, isTrue); | |
147 }); | |
148 | |
149 test('hashCode', () { | |
150 var a = new Rectangle(0, 1, 2, 3); | |
151 var b = new Rectangle(0, 1, 2, 3); | |
152 expect(a.hashCode, b.hashCode); | |
153 | |
154 var c = new Rectangle(1, 0, 2, 3); | |
155 expect(a.hashCode == c.hashCode, isFalse); | |
156 }); | |
157 } | |
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