Add cts tests for new methods of Paint.
Paint#getOffsetForAdvance
Paint#getRunAdvance
Bug: 21662770
Change-Id: I7f939b59d03a105fff9172bb443c01b848158d10
diff --git a/tests/tests/graphics/src/android/graphics/cts/PaintTest.java b/tests/tests/graphics/src/android/graphics/cts/PaintTest.java
index a4a7bfd..629e85e 100644
--- a/tests/tests/graphics/src/android/graphics/cts/PaintTest.java
+++ b/tests/tests/graphics/src/android/graphics/cts/PaintTest.java
@@ -36,6 +36,7 @@
import android.os.Build;
import android.test.AndroidTestCase;
import android.text.SpannedString;
+import android.util.Log;
import java.util.Locale;
@@ -1064,4 +1065,300 @@
// TODO: when we support variation selectors, add positive tests
}
+ public void testGetRunAdvance() {
+ Paint p = new Paint();
+ {
+ // LTR
+ String string = "abcdef";
+ {
+ final float width = p.getRunAdvance(string, 0, string.length(), 0,
+ string.length(), false, 0);
+ assertEquals(0.0f, width);
+ }
+ {
+ final float widthToMid = p.getRunAdvance(string, 0, string.length(), 0,
+ string.length(), false, string.length() / 2);
+ final float widthToTail = p.getRunAdvance(string, 0, string.length(), 0,
+ string.length(), false, string.length());
+ assertTrue(widthToMid > 0.0f);
+ assertTrue(widthToTail > widthToMid);
+ }
+ {
+ final float widthFromHead = p.getRunAdvance(string, 0, string.length(), 0,
+ string.length(), false, string.length());
+ final float widthFromSecond = p.getRunAdvance(string, 1, string.length(), 0,
+ string.length(), false, string.length());
+ assertTrue(widthFromHead > widthFromSecond);
+ }
+ }
+ {
+ // RTL
+ String string = "\u0644\u063A\u0629 \u0639\u0631\u0628\u064A\u0629"; // Arabic
+ {
+ final float widthToMid = p.getRunAdvance(string, 0, string.length(), 0,
+ string.length(), true, string.length() / 2);
+ final float widthToTail = p.getRunAdvance(string, 0, string.length(), 0,
+ string.length(), true, string.length());
+ assertTrue(widthToMid > 0.0f);
+ assertTrue(widthToTail > widthToMid);
+ }
+ {
+ final float widthFromHead = p.getRunAdvance(string, 0, string.length(), 0,
+ string.length(), true, string.length());
+ final float widthFromSecond = p.getRunAdvance(string, 1, string.length(), 0,
+ string.length(), true, string.length());
+ assertTrue(widthFromHead > widthFromSecond);
+ }
+ }
+ }
+
+ public void testGetRunAdvance_invalidArguments() {
+ Paint p = new Paint();
+ try {
+ p.getRunAdvance((CharSequence)null, 0, 0, 0, 0, false, 0);
+ fail("Should throw an IllegalArgumentException.");
+ } catch (IllegalArgumentException e) {
+ } catch (Exception e) {
+ fail("Should throw an IllegalArgumentException.");
+ }
+
+ try {
+ p.getRunAdvance((char[])null, 0, 0, 0, 0, false, 0);
+ fail("Should throw an IllegalArgumentException.");
+ } catch (IllegalArgumentException e) {
+ } catch (Exception e) {
+ fail("Should throw an IllegalArgumentException.");
+ }
+
+ final String string = "abcde";
+
+ try {
+ // text length < context end
+ p.getRunAdvance(string, 0, string.length(), 0, string.length() + 1, false,
+ string.length());
+ fail("Should throw an IndexOutOfBoundsException.");
+ } catch (IndexOutOfBoundsException e) {
+ } catch (Exception e) {
+ fail("Should throw an IndexOutOfBoundsException.");
+ }
+ try {
+ // context end < end
+ p.getRunAdvance(string, 0, string.length(), 0, string.length() - 1, false, 0);
+ fail("Should throw an IndexOutOfBoundsException.");
+ } catch (IndexOutOfBoundsException e) {
+ } catch (Exception e) {
+ fail("Should throw an IndexOutOfBoundsException.");
+ }
+ try {
+ // end < offset
+ p.getRunAdvance(string, 0, string.length() - 1, 0, string.length() - 1, false,
+ string.length());
+ fail("Should throw an IndexOutOfBoundsException.");
+ } catch (IndexOutOfBoundsException e) {
+ } catch (Exception e) {
+ fail("Should throw an IndexOutOfBoundsException.");
+ }
+ try {
+ // offset < start
+ p.getRunAdvance(string, 1, string.length(), 1, string.length(), false, 0);
+ fail("Should throw an IndexOutOfBoundsException.");
+ } catch (IndexOutOfBoundsException e) {
+ } catch (Exception e) {
+ fail("Should throw an IndexOutOfBoundsException.");
+ }
+ try {
+ // start < context start
+ p.getRunAdvance(string, 0, string.length(), 1, string.length(), false, 1);
+ fail("Should throw an IndexOutOfBoundsException.");
+ } catch (IndexOutOfBoundsException e) {
+ } catch (Exception e) {
+ fail("Should throw an IndexOutOfBoundsException.");
+ }
+ try {
+ // context start < 0
+ p.getRunAdvance(string, 0, string.length(), -1, string.length(), false, 0);
+ fail("Should throw an IndexOutOfBoundsException.");
+ } catch (IndexOutOfBoundsException e) {
+ } catch (Exception e) {
+ fail("Should throw an IndexOutOfBoundsException.");
+ }
+ }
+
+ public void testGetOffsetForAdvance() {
+ Paint p = new Paint();
+ {
+ // LTR
+ String string = "abcdef";
+ {
+ for (int offset = 0; offset <= string.length(); ++offset) {
+ final float widthToOffset = p.getRunAdvance(string, 0,
+ string.length(), 0, string.length(), false, offset);
+ final int restoredOffset = p.getOffsetForAdvance(string, 0,
+ string.length(), 0, string.length(), false, widthToOffset);
+ assertEquals(offset, restoredOffset);
+ }
+ }
+ {
+ final int offset = p.getOffsetForAdvance(string, 0, string.length(), 0,
+ string.length(), false, -10.0f);
+ assertEquals(0, offset);
+ }
+ {
+ final float widthToEnd = p.getRunAdvance(string, 0, string.length(), 0,
+ string.length(), true, string.length());
+ final int offset = p.getOffsetForAdvance(string, 0, string.length(), 0,
+ string.length(), true, widthToEnd + 10.0f);
+ assertEquals(string.length(), offset);
+ }
+ }
+ {
+ // RTL
+ String string = "\u0639\u0631\u0628\u0649"; // Arabic
+ {
+ for (int offset = 0; offset <= string.length(); ++offset) {
+ final float widthToOffset = p.getRunAdvance(string, 0,
+ string.length(), 0, string.length(), true, offset);
+ final int restoredOffset = p.getOffsetForAdvance(string, 0,
+ string.length(), 0, string.length(), true, widthToOffset);
+ assertEquals(offset, restoredOffset);
+ }
+ }
+ {
+ final int offset = p.getOffsetForAdvance(string, 0, string.length(), 0,
+ string.length(), true, -10.0f);
+ assertEquals(0, offset);
+ }
+ {
+ final float widthToEnd = p.getRunAdvance(string, 0, string.length(), 0,
+ string.length(), true, string.length());
+ final int offset = p.getOffsetForAdvance(string, 0, string.length(), 0,
+ string.length(), true, widthToEnd + 10.0f);
+ assertEquals(string.length(), offset);
+ }
+ }
+ }
+
+ public void testGetOffsetForAdvance_invalidArguments() {
+ Paint p = new Paint();
+ try {
+ p.getOffsetForAdvance((CharSequence)null, 0, 0, 0, 0, false, 0.0f);
+ fail("Should throw an IllegalArgumentException.");
+ } catch (IllegalArgumentException e) {
+ } catch (Exception e) {
+ fail("Should throw an IllegalArgumentException.");
+ }
+ try {
+ p.getOffsetForAdvance((char[])null, 0, 0, 0, 0, false, 0.0f);
+ fail("Should throw an IllegalArgumentException.");
+ } catch (IllegalArgumentException e) {
+ } catch (Exception e) {
+ fail("Should throw an IllegalArgumentException.");
+ }
+
+ final String string = "abcde";
+
+ try {
+ // context start < 0
+ p.getOffsetForAdvance(string, -1, string.length(), 0, string.length(), false, 0.0f);
+ fail("Should throw an IndexOutOfBoundsException.");
+ } catch (IndexOutOfBoundsException e) {
+ } catch (Exception e) {
+ fail("Should throw an IndexOutOfBoundsException.");
+ }
+
+ try {
+ // start < context start
+ p.getOffsetForAdvance(string, 1, string.length(), 0, string.length(), false, 0.0f);
+ fail("Should throw an IndexOutOfBoundsException.");
+ } catch (IndexOutOfBoundsException e) {
+ } catch (Exception e) {
+ fail("Should throw an IndexOutOfBoundsException.");
+ }
+
+ try {
+ // end < start
+ p.getOffsetForAdvance(string, 1, 0, 0, 0, false, 0);
+ fail("Should throw an IndexOutOfBoundsException.");
+ } catch (IndexOutOfBoundsException e) {
+ } catch (Exception e) {
+ fail("Should throw an IndexOutOfBoundsException.");
+ }
+
+ try {
+ // context end < end
+ p.getOffsetForAdvance(string, 0, string.length(), 0, string.length() - 1, false, 0.0f);
+ fail("Should throw an IndexOutOfBoundsException.");
+ } catch (IndexOutOfBoundsException e) {
+ } catch (Exception e) {
+ fail("Should throw an IndexOutOfBoundsException.");
+ }
+
+ try {
+ // text length < context end
+ p.getOffsetForAdvance(string, 0, string.length(), 0, string.length() + 1, false, 0.0f);
+ fail("Should throw an IndexOutOfBoundsException.");
+ } catch (IndexOutOfBoundsException e) {
+ } catch (Exception e) {
+ fail("Should throw an IndexOutOfBoundsException.");
+ }
+ }
+
+ public void testGetOffsetForAdvance_grahpemeCluster() {
+ Paint p = new Paint();
+ {
+ String string = "\uD83C\uDF37"; // U+1F337: TULIP
+ {
+ final float widthToOffset = p.getRunAdvance(string, 0,
+ string.length(), 0, string.length(), false, 1);
+ final int offset = p.getOffsetForAdvance(string, 0, string.length(), 0,
+ string.length(), false, widthToOffset);
+ assertFalse(1 == offset);
+ assertTrue(0 == offset || string.length() == offset);
+ }
+ }
+ {
+ String string = "\uD83C\uDDFA\uD83C\uDDF8"; // US flag
+ {
+ final float widthToOffset = p.getRunAdvance(string, 0,
+ string.length(), 0, string.length(), false, 2);
+ final int offset = p.getOffsetForAdvance(string, 0, string.length(), 0,
+ string.length(), false, widthToOffset);
+ assertFalse(2 == offset);
+ assertTrue(0 == offset || string.length() == offset);
+ }
+ {
+ final float widthToOffset = p.getRunAdvance(string, 0, 2, 0, 2, false, 2);
+ final int offset = p.getOffsetForAdvance(string, 0, 2,
+ 0, 2, false, widthToOffset);
+ assertEquals(2, offset);
+ }
+ }
+ {
+ // HANGUL CHOSEONG KIYEOK, HANGUL JUNGSEONG A, HANDUL JONGSEONG KIYEOK
+ String string = "\u1100\u1161\u11A8";
+ {
+ for (int offset = 0; offset <= string.length(); ++offset) {
+ final float widthToOffset = p.getRunAdvance(string, 0,
+ string.length(), 0, string.length(), false, offset);
+ final int offsetForAdvance = p.getOffsetForAdvance(string, 0, string.length(),
+ 0, string.length(), false, widthToOffset);
+ assertTrue(0 == offsetForAdvance || string.length() == offsetForAdvance);
+ }
+ for (int offset = 0; offset <= string.length(); ++offset) {
+ final float widthToOffset = p.getRunAdvance(string, 0, offset, 0, offset,
+ false, offset);
+ final int offsetForAdvance = p.getOffsetForAdvance(string, 0, string.length(),
+ 0, string.length(), false, widthToOffset);
+ assertTrue(0 == offsetForAdvance || string.length() == offsetForAdvance);
+ }
+ for (int offset = 0; offset <= string.length(); ++offset) {
+ final float widthToOffset = p.getRunAdvance(string, 0, offset, 0, offset,
+ false, offset);
+ final int offsetForAdvance = p.getOffsetForAdvance(string, 0, offset, 0,
+ offset, false, widthToOffset);
+ assertEquals(offset, offsetForAdvance);
+ }
+ }
+ }
+ }
}
