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
|
/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package android.text;
import android.text.Layout.Alignment;
import junit.framework.TestCase;
/**
* Tests for text measuring methods of StaticLayout.
*/
public class StaticLayoutTextMeasuringTest extends TestCase {
private static final float SPACE_MULTI = 1.0f;
private static final float SPACE_ADD = 0.0f;
private static final int DEFAULT_OUTER_WIDTH = 150;
private static final Alignment DEFAULT_ALIGN = Alignment.ALIGN_LEFT;
private TextPaint mDefaultPaint;
@Override
protected void setUp() throws Exception {
super.setUp();
if (mDefaultPaint == null) {
mDefaultPaint = new TextPaint();
}
}
public void testGetPrimaryHorizontal_zwnbsp() {
// a, ZERO WIDTH NO-BREAK SPACE
String testString = "a\uFEFF";
StaticLayout layout = new StaticLayout(testString, mDefaultPaint,
DEFAULT_OUTER_WIDTH, DEFAULT_ALIGN, SPACE_MULTI, SPACE_ADD, true);
assertEquals(0.0f, layout.getPrimaryHorizontal(0));
assertEquals(layout.getPrimaryHorizontal(2), layout.getPrimaryHorizontal(1));
}
public void testGetPrimaryHorizontal_devanagari() {
// DEVANAGARI LETTER KA, DEVANAGARI VOWEL SIGN AA
String testString = "\u0915\u093E";
StaticLayout layout = new StaticLayout(testString, mDefaultPaint,
DEFAULT_OUTER_WIDTH, DEFAULT_ALIGN, SPACE_MULTI, SPACE_ADD, true);
assertEquals(0.0f, layout.getPrimaryHorizontal(0));
assertEquals(layout.getPrimaryHorizontal(2), layout.getPrimaryHorizontal(1));
}
public void testGetPrimaryHorizontal_flagEmoji() {
// REGIONAL INDICATOR SYMBOL LETTER U, REGIONAL INDICATOR SYMBOL LETTER S, REGIONAL
// INDICATOR SYMBOL LETTER Z
// First two code points (U and S) forms a US flag.
String testString = "\uD83C\uDDFA\uD83C\uDDF8\uD83C\uDDFF";
StaticLayout layout = new StaticLayout(testString, mDefaultPaint,
DEFAULT_OUTER_WIDTH, DEFAULT_ALIGN, SPACE_MULTI, SPACE_ADD, true);
assertEquals(0.0f, layout.getPrimaryHorizontal(0));
assertEquals(layout.getPrimaryHorizontal(4), layout.getPrimaryHorizontal(1));
assertEquals(layout.getPrimaryHorizontal(4), layout.getPrimaryHorizontal(2));
assertEquals(layout.getPrimaryHorizontal(4), layout.getPrimaryHorizontal(3));
assertTrue(layout.getPrimaryHorizontal(6) > layout.getPrimaryHorizontal(4));
assertEquals(layout.getPrimaryHorizontal(6), layout.getPrimaryHorizontal(5));
}
}
|
