Add tests: Paint#measureText for bidirectional text. (05de8fb2) · Commits · e / os / android_frameworks_base

graphics/tests/graphicstests/src/android/graphics/PaintTest.java

+56 −0

Original line number	Diff line number	Diff line
		@@ -162,4 +162,60 @@ public class PaintTest extends AndroidTestCase {
		} catch (IndexOutOfBoundsException e) {
		}
		}

		public void testMeasureTextBidi() {
		Paint p = new Paint();
		{
		String bidiText = "abc \u0644\u063A\u0629 def";
		p.setBidiFlags(Paint.BIDI_LTR);
		float width = p.measureText(bidiText, 0, 4);
		p.setBidiFlags(Paint.BIDI_RTL);
		width += p.measureText(bidiText, 4, 7);
		p.setBidiFlags(Paint.BIDI_LTR);
		width += p.measureText(bidiText, 7, bidiText.length());
		assertEquals(width, p.measureText(bidiText), 1.0f);
		}
		{
		String bidiText = "abc \u0644\u063A\u0629 def";
		p.setBidiFlags(Paint.BIDI_DEFAULT_LTR);
		float width = p.measureText(bidiText, 0, 4);
		width += p.measureText(bidiText, 4, 7);
		width += p.measureText(bidiText, 7, bidiText.length());
		assertEquals(width, p.measureText(bidiText), 1.0f);
		}
		{
		String bidiText = "abc \u0644\u063A\u0629 def";
		p.setBidiFlags(Paint.BIDI_FORCE_LTR);
		float width = p.measureText(bidiText, 0, 4);
		width += p.measureText(bidiText, 4, 7);
		width += p.measureText(bidiText, 7, bidiText.length());
		assertEquals(width, p.measureText(bidiText), 1.0f);
		}
		{
		String bidiText = "\u0644\u063A\u0629 abc \u0644\u063A\u0629";
		p.setBidiFlags(Paint.BIDI_RTL);
		float width = p.measureText(bidiText, 0, 4);
		p.setBidiFlags(Paint.BIDI_LTR);
		width += p.measureText(bidiText, 4, 7);
		p.setBidiFlags(Paint.BIDI_RTL);
		width += p.measureText(bidiText, 7, bidiText.length());
		assertEquals(width, p.measureText(bidiText), 1.0f);
		}
		{
		String bidiText = "\u0644\u063A\u0629 abc \u0644\u063A\u0629";
		p.setBidiFlags(Paint.BIDI_DEFAULT_RTL);
		float width = p.measureText(bidiText, 0, 4);
		width += p.measureText(bidiText, 4, 7);
		width += p.measureText(bidiText, 7, bidiText.length());
		assertEquals(width, p.measureText(bidiText), 1.0f);
		}
		{
		String bidiText = "\u0644\u063A\u0629 abc \u0644\u063A\u0629";
		p.setBidiFlags(Paint.BIDI_FORCE_RTL);
		float width = p.measureText(bidiText, 0, 4);
		width += p.measureText(bidiText, 4, 7);
		width += p.measureText(bidiText, 7, bidiText.length());
		assertEquals(width, p.measureText(bidiText), 1.0f);
		}
		}
		}