1 /*
2 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package test.com.sun.javafx.test;
27
28 import static org.junit.Assert.assertEquals;
29 import static org.junit.Assert.fail;
30
31 import java.util.List;
32
33 import javafx.geometry.BoundingBox;
34 import javafx.geometry.Bounds;
35 import javafx.scene.Group;
36 import javafx.scene.Node;
37
38 public class TestHelper {
39
40 // tests that they are within 1px error of being the same. This is to
41 // account
42 // for stroke width
43 public static void assertSimilar(Bounds expected, Bounds actual) {
44 assertEquals("minX", expected.getMinX(), actual.getMinX(), 1);
45 assertEquals("minY", expected.getMinY(), actual.getMinY(), 1);
46 assertEquals("maxX", expected.getMaxX(), actual.getMaxX(), 1);
47 assertEquals("maxY", expected.getMaxY(), actual.getMaxY(), 1);
48 }
49
50 public static final float EPSILON = 1.0e-4f;
51
52 public static void assertAlmostEquals(float a, float b) {
53 assertEquals(a, b, EPSILON);
54 }
55
56 public static void assertBoundsEqual(Bounds expected, Bounds actual) {
57 if (expected.isEmpty() && actual.isEmpty()) {
58 return;
59 } else {
60 assertEquals(expected, actual);
61 }
62 }
63
64 public static void assertGroupBounds(Group g) {
65 // first figure out what the 'expected' bounds are
66 float x1 = 0;
67 float y1 = 0;
68 float x2 = -1;
69 float y2 = -1;
70 boolean first = true;
71 for (Node n : g.getChildren()) {
72 if (n.isVisible() && !n.getBoundsInLocal().isEmpty()) {
73 if (first) {
74 x1 = (float) n.getBoundsInParent().getMinX();
75 y1 = (float) n.getBoundsInParent().getMinY();
76 x2 = (float) n.getBoundsInParent().getMaxX();
77 y2 = (float) n.getBoundsInParent().getMaxY();
78 first = false;
79 } else {
80 x1 = Math.min(x1, (float) n.getBoundsInParent().getMinX());
81 y1 = Math.min(y1, (float) n.getBoundsInParent().getMinY());
82 x2 = Math.max(x2, (float) n.getBoundsInParent().getMaxX());
83 y2 = Math.max(y2, (float) n.getBoundsInParent().getMaxY());
84 }
85 }
86 }
87 Bounds expected = box2(x1, y1, x2, y2);
88 assertBoundsEqual(expected, g.getBoundsInLocal());
89 }
90
91 public static String formatBounds(Bounds b) {
92 return "(" + b.getMinX() + ", " + b.getMinY() + ", " + b.getWidth()
93 + ", " + b.getHeight() + ")";
94 }
95
96 public static BoundingBox box(int minX, int minY, int width, int height) {
97 return box((float) minX, (float) minY, (float) width, (float) height);
98 }
99
100 public static BoundingBox box(double minX, double minY, double width, double height) {
101 return box((float) minX, (float) minY, (float) width, (float) height);
102 }
103
104 public static BoundingBox box(float minX, float minY, float width,
105 float height) {
106 return new BoundingBox(minX, minY, width, height);
107 }
108
109 public static BoundingBox box(float minX, float minY, float minZ, float width,
110 float height, float depth) {
111 return new BoundingBox(minX, minY, minZ, width, height, depth);
112 }
113
114 public static BoundingBox box2(int minX, int minY, int maxX, int maxY) {
115 return box2((float) minX, (float) minY, (float) maxX, (float) maxY);
116 }
117
118 public static BoundingBox box2(float minX, float minY, float maxX,
119 float maxY) {
120 return box(minX, minY, maxX - minX, maxY - minY);
121 }
122
123 @SuppressWarnings({ "rawtypes", "unchecked" })
124 public static void assertImmutableList(List list) {
125 try {
126 list.add(new Object());
127 fail("Exception expected while modifying the list.");
128 } catch (Exception e) {
129 // expected
130 }
131 }
132 }