StaticLayoutDirectionsTestpublic class StaticLayoutDirectionsTest extends TestCase
| Fields Summary |
|---|
| private static final char | ALEF | | private static final int | RUN_LENGTH_MASK | | private static final int | RUN_LEVEL_SHIFT | | private static final int | RUN_LEVEL_MASK | | private static final int | RUN_RTL_FLAG | | private static final android.text.Layout.Directions | DIRS_ALL_LEFT_TO_RIGHT | | private static final android.text.Layout.Directions | DIRS_ALL_RIGHT_TO_LEFT | | private static final int | LVL1_1 | | private static final int | LVL2_1 | | private static final int | LVL2_2 | | private static String[] | texts | | private static android.text.Layout.Directions[] | expected |
| Methods Summary |
|---|
| private void | checkDirections(Layout l, int i, java.lang.String text, android.text.Layout.Directions[] expectedDirs, java.util.Formatter f)
Directions expected = expectedDirs[i];
Directions result = l.getLineDirections(0);
if (!Arrays.equals(expected.mDirections, result.mDirections)) {
f.format("%n[%2d] '%s', %s != %s", i, text,
hexArray(expected.mDirections),
hexArray(result.mDirections));
}
| | private static android.text.Layout.Directions | dirs(int dirs)
return new Directions(dirs);
| | private void | expectDirections(java.lang.String msg, android.text.Layout.Directions expected, android.text.Layout.Directions result)
if (!Arrays.equals(expected.mDirections, result.mDirections)) {
fail("expected: " + hexArray(expected.mDirections) +
" got: " + hexArray(result.mDirections));
}
| | private static java.lang.String | hexArray(int[] array)
StringBuilder sb = new StringBuilder();
sb.append('{");
for (int i : array) {
if (sb.length() > 1) {
sb.append(", ");
}
sb.append(Integer.toHexString(i));
}
sb.append('}");
return sb.toString();
| | private static java.lang.String | pseudoBidiToReal(java.lang.String src)
char[] chars = src.toCharArray();
for (int j = 0; j < chars.length; ++j) {
char c = chars[j];
if (c >= 'A" && c <= 'D") {
chars[j] = (char)(ALEF + c - 'A");
}
}
return new String(chars, 0, chars.length);
| | public void | testDirections()
StringBuilder buf = new StringBuilder("\n");
Formatter f = new Formatter(buf);
LayoutBuilder b = StaticLayoutTest.builder();
for (int i = 0; i < texts.length; ++i) {
b.setText(pseudoBidiToReal(texts[i]));
checkDirections(b.build(), i, b.text, expected, f);
}
if (buf.length() > 1) {
fail(buf.toString());
}
| | public void | testNextToLeftOf()
LayoutBuilder b = StaticLayoutTest.builder();
b.setText(pseudoBidiToReal("aA1B2"));
int[] expected = { 0, 1, 4, 3, 2, 5 };
Layout l = b.build();
int n = 5;
for (int i = expected.length - 1; --i >= 0;) {
int t = l.getOffsetToLeftOf(n);
if (t != expected[i]) {
fail("offset[" + i + "] to left of: " + n + " expected: " +
expected[i] + " got: " + t);
}
n = t;
}
| | public void | testNextToRightOf()
LayoutBuilder b = StaticLayoutTest.builder();
b.setText(pseudoBidiToReal("aA1B2"));
// visual a2B1A positions 04321
// 0: |a2B1A, strong is sol, after -> 0
// 1: a|2B1A, strong is a, after ->, 1
// 2: a2|B1A, strong is B, after -> 4
// 3: a2B|1A, strong is B, before -> 3
// 4: a2B1|A, strong is A, after -> 2
// 5: a2B1A|, strong is eol, before -> 5
int[] expected = { 0, 1, 4, 3, 2, 5 };
Layout l = b.build();
int n = 0;
for (int i = 1; i < expected.length; ++i) {
int t = l.getOffsetToRightOf(n);
if (t != expected[i]) {
fail("offset[" + i + "] to right of: " + n + " expected: " +
expected[i] + " got: " + t);
}
n = t;
}
| | public void | testTrailingWhitespace()
LayoutBuilder b = StaticLayoutTest.builder();
b.setText(pseudoBidiToReal("Ab c"));
float width = b.paint.measureText(b.text, 0, 5); // exclude 'c'
b.setWidth(Math.round(width));
Layout l = b.build();
if (l.getLineCount() != 2) {
throw new RuntimeException("expected 2 lines, got: " + l.getLineCount());
}
Directions result = l.getLineDirections(0);
Directions expected = dirs(0, LVL1_1, 1, LVL2_1, 2, 3 | (1 << Layout.RUN_LEVEL_SHIFT));
expectDirections("split line", expected, result);
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