1 | // License: GPL. For details, see LICENSE file.
|
---|
2 | package org.openstreetmap.josm.tools;
|
---|
3 |
|
---|
4 | import static org.junit.jupiter.api.Assertions.assertEquals;
|
---|
5 | import static org.junit.jupiter.api.Assertions.assertNull;
|
---|
6 |
|
---|
7 | import java.awt.Color;
|
---|
8 |
|
---|
9 | import org.junit.jupiter.api.Test;
|
---|
10 |
|
---|
11 | /**
|
---|
12 | * Unit tests for class {@link ColorHelper}.
|
---|
13 | */
|
---|
14 | class ColorHelperTest {
|
---|
15 |
|
---|
16 | /**
|
---|
17 | * Unit test of method {@link ColorHelper#html2color}.
|
---|
18 | */
|
---|
19 | @Test
|
---|
20 | void testHtml2color() {
|
---|
21 | assertNull(ColorHelper.html2color(""));
|
---|
22 | assertNull(ColorHelper.html2color("xyz"));
|
---|
23 | assertEquals(Color.CYAN, ColorHelper.html2color("0ff"));
|
---|
24 | assertEquals(Color.CYAN, ColorHelper.html2color("#0ff"));
|
---|
25 | assertEquals(Color.CYAN, ColorHelper.html2color("00ffff"));
|
---|
26 | assertEquals(Color.CYAN, ColorHelper.html2color("#00ffff"));
|
---|
27 | assertEquals(Color.CYAN, ColorHelper.html2color("#00FFFF"));
|
---|
28 | assertEquals(new Color(0x12345678, true), ColorHelper.html2color("#34567812"));
|
---|
29 | }
|
---|
30 |
|
---|
31 | /**
|
---|
32 | * Unit test of method {@link ColorHelper#color2html}.
|
---|
33 | */
|
---|
34 | @Test
|
---|
35 | void testColor2html() {
|
---|
36 | assertNull(ColorHelper.color2html(null));
|
---|
37 | assertEquals("#FF0000", ColorHelper.color2html(Color.RED));
|
---|
38 | assertEquals("#00FFFF", ColorHelper.color2html(Color.CYAN));
|
---|
39 | assertEquals("#34567812", ColorHelper.color2html(new Color(0x12345678, true)));
|
---|
40 | assertEquals("#34567812", ColorHelper.color2html(new Color(0x12345678, true), true));
|
---|
41 | assertEquals("#345678", ColorHelper.color2html(new Color(0x12345678, true), false));
|
---|
42 | }
|
---|
43 |
|
---|
44 | /**
|
---|
45 | * Unit test of method {@link ColorHelper#getForegroundColor}.
|
---|
46 | */
|
---|
47 | @Test
|
---|
48 | void testGetForegroundColor() {
|
---|
49 | assertNull(ColorHelper.getForegroundColor(null));
|
---|
50 | assertEquals(Color.WHITE, ColorHelper.getForegroundColor(Color.BLACK));
|
---|
51 | assertEquals(Color.WHITE, ColorHelper.getForegroundColor(Color.DARK_GRAY));
|
---|
52 | assertEquals(Color.BLACK, ColorHelper.getForegroundColor(Color.LIGHT_GRAY));
|
---|
53 | assertEquals(Color.BLACK, ColorHelper.getForegroundColor(Color.YELLOW));
|
---|
54 | assertEquals(Color.BLACK, ColorHelper.getForegroundColor(Color.WHITE));
|
---|
55 | }
|
---|
56 |
|
---|
57 | /**
|
---|
58 | * Test of {@link ColorHelper#float2int}
|
---|
59 | */
|
---|
60 | @Test
|
---|
61 | void testColorFloat2int() {
|
---|
62 | assertNull(ColorHelper.float2int(null));
|
---|
63 | assertEquals(255, (int) ColorHelper.float2int(-1.0f));
|
---|
64 | assertEquals(0, (int) ColorHelper.float2int(-0.0f));
|
---|
65 | assertEquals(0, (int) ColorHelper.float2int(0.0f));
|
---|
66 | assertEquals(64, (int) ColorHelper.float2int(0.25f));
|
---|
67 | assertEquals(128, (int) ColorHelper.float2int(0.5f));
|
---|
68 | assertEquals(255, (int) ColorHelper.float2int(1.0f));
|
---|
69 | assertEquals(255, (int) ColorHelper.float2int(2.0f));
|
---|
70 | }
|
---|
71 |
|
---|
72 | /**
|
---|
73 | * Test of {@link ColorHelper#int2float}
|
---|
74 | */
|
---|
75 | @Test
|
---|
76 | void testColorInt2float() {
|
---|
77 | assertNull(ColorHelper.int2float(null));
|
---|
78 | assertEquals(1.0f, ColorHelper.int2float(-1), 1e-3);
|
---|
79 | assertEquals(0.0f, ColorHelper.int2float(0), 1e-3);
|
---|
80 | assertEquals(0.25f, ColorHelper.int2float(64), 1e-3);
|
---|
81 | assertEquals(0.502f, ColorHelper.int2float(128), 1e-3);
|
---|
82 | assertEquals(0.753f, ColorHelper.int2float(192), 1e-3);
|
---|
83 | assertEquals(1.0f, ColorHelper.int2float(255), 1e-3);
|
---|
84 | assertEquals(1.0f, ColorHelper.int2float(1024), 1e-3);
|
---|
85 | }
|
---|
86 |
|
---|
87 | /**
|
---|
88 | * Test of {@link ColorHelper#alphaMultiply}
|
---|
89 | */
|
---|
90 | @Test
|
---|
91 | void testAlphaMultiply() {
|
---|
92 | final Color color = new Color(0x12345678, true);
|
---|
93 | assertEquals(new Color(0x12345678, true), ColorHelper.alphaMultiply(color, 1f));
|
---|
94 | assertEquals(new Color(0x24345678, true), ColorHelper.alphaMultiply(color, 2f));
|
---|
95 | }
|
---|
96 |
|
---|
97 | /**
|
---|
98 | * Test of {@link ColorHelper#complement}
|
---|
99 | */
|
---|
100 | @Test
|
---|
101 | void testComplement() {
|
---|
102 | assertEquals(Color.cyan, ColorHelper.complement(Color.red));
|
---|
103 | assertEquals(Color.red, ColorHelper.complement(Color.cyan));
|
---|
104 | assertEquals(Color.magenta, ColorHelper.complement(Color.green));
|
---|
105 | assertEquals(Color.green, ColorHelper.complement(Color.magenta));
|
---|
106 | assertEquals(Color.yellow, ColorHelper.complement(Color.blue));
|
---|
107 | assertEquals(Color.blue, ColorHelper.complement(Color.yellow));
|
---|
108 | }
|
---|
109 | }
|
---|