| /* |
| * Copyright (C) 2017 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 static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotEquals; |
| import static org.junit.Assert.assertNotNull; |
| |
| import android.content.Context; |
| import android.graphics.Typeface; |
| import android.support.test.InstrumentationRegistry; |
| import android.support.test.filters.SmallTest; |
| import android.support.test.runner.AndroidJUnit4; |
| |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| @SmallTest |
| @RunWith(AndroidJUnit4.class) |
| public class MeasuredParagraphTest { |
| private static final TextDirectionHeuristic LTR = TextDirectionHeuristics.LTR; |
| private static final TextDirectionHeuristic RTL = TextDirectionHeuristics.RTL; |
| |
| private static final TextPaint PAINT = new TextPaint(); |
| static { |
| // The test font has following coverage and width. |
| // U+0020: 10em |
| // U+002E (.): 10em |
| // U+0043 (C): 100em |
| // U+0049 (I): 1em |
| // U+004C (L): 50em |
| // U+0056 (V): 5em |
| // U+0058 (X): 10em |
| // U+005F (_): 0em |
| // U+FFFD (invalid surrogate will be replaced to this): 7em |
| // U+10331 (\uD800\uDF31): 10em |
| Context context = InstrumentationRegistry.getTargetContext(); |
| PAINT.setTypeface(Typeface.createFromAsset(context.getAssets(), |
| "fonts/StaticLayoutLineBreakingTestFont.ttf")); |
| PAINT.setTextSize(1.0f); // Make 1em == 1px. |
| } |
| |
| private String charsToString(char[] chars) { |
| return (new StringBuilder()).append(chars).toString(); |
| } |
| |
| @Test |
| public void buildForBidi() { |
| MeasuredParagraph mt = null; |
| |
| mt = MeasuredParagraph.buildForBidi("XXX", 0, 3, LTR, null); |
| assertNotNull(mt); |
| assertNotNull(mt.getChars()); |
| assertEquals("XXX", charsToString(mt.getChars())); |
| assertEquals(Layout.DIR_LEFT_TO_RIGHT, mt.getParagraphDir()); |
| assertNotNull(mt.getDirections(0, 3)); |
| assertEquals(0, mt.getWholeWidth(), 0); |
| assertEquals(0, mt.getWidths().size()); |
| assertEquals(0, mt.getSpanEndCache().size()); |
| assertEquals(0, mt.getFontMetrics().size()); |
| assertEquals(0, mt.getNativePtr()); |
| |
| // Recycle it |
| MeasuredParagraph mt2 = MeasuredParagraph.buildForBidi("_VVV_", 1, 4, RTL, mt); |
| assertEquals(mt2, mt); |
| assertNotNull(mt2.getChars()); |
| assertEquals("VVV", charsToString(mt.getChars())); |
| assertNotNull(mt2.getDirections(0, 3)); |
| assertEquals(0, mt2.getWholeWidth(), 0); |
| assertEquals(0, mt2.getWidths().size()); |
| assertEquals(0, mt2.getSpanEndCache().size()); |
| assertEquals(0, mt2.getFontMetrics().size()); |
| assertEquals(0, mt2.getNativePtr()); |
| |
| mt2.recycle(); |
| } |
| |
| @Test |
| public void buildForMeasurement() { |
| MeasuredParagraph mt = null; |
| |
| mt = MeasuredParagraph.buildForMeasurement(PAINT, "XXX", 0, 3, LTR, null); |
| assertNotNull(mt); |
| assertNotNull(mt.getChars()); |
| assertEquals("XXX", charsToString(mt.getChars())); |
| assertEquals(Layout.DIR_LEFT_TO_RIGHT, mt.getParagraphDir()); |
| assertNotNull(mt.getDirections(0, 3)); |
| assertEquals(30, mt.getWholeWidth(), 0); |
| assertEquals(3, mt.getWidths().size()); |
| assertEquals(10, mt.getWidths().get(0), 0); |
| assertEquals(10, mt.getWidths().get(1), 0); |
| assertEquals(10, mt.getWidths().get(2), 0); |
| assertEquals(0, mt.getSpanEndCache().size()); |
| assertEquals(0, mt.getFontMetrics().size()); |
| assertEquals(0, mt.getNativePtr()); |
| |
| // Recycle it |
| MeasuredParagraph mt2 = |
| MeasuredParagraph.buildForMeasurement(PAINT, "_VVV_", 1, 4, RTL, mt); |
| assertEquals(mt2, mt); |
| assertNotNull(mt2.getChars()); |
| assertEquals("VVV", charsToString(mt.getChars())); |
| assertEquals(Layout.DIR_RIGHT_TO_LEFT, mt2.getParagraphDir()); |
| assertNotNull(mt2.getDirections(0, 3)); |
| assertEquals(15, mt2.getWholeWidth(), 0); |
| assertEquals(3, mt2.getWidths().size()); |
| assertEquals(5, mt2.getWidths().get(0), 0); |
| assertEquals(5, mt2.getWidths().get(1), 0); |
| assertEquals(5, mt2.getWidths().get(2), 0); |
| assertEquals(0, mt2.getSpanEndCache().size()); |
| assertEquals(0, mt2.getFontMetrics().size()); |
| assertEquals(0, mt2.getNativePtr()); |
| |
| mt2.recycle(); |
| } |
| |
| @Test |
| public void buildForStaticLayout() { |
| MeasuredParagraph mt = null; |
| |
| mt = MeasuredParagraph.buildForStaticLayout(PAINT, "XXX", 0, 3, LTR, false, false, null); |
| assertNotNull(mt); |
| assertNotNull(mt.getChars()); |
| assertEquals("XXX", charsToString(mt.getChars())); |
| assertEquals(Layout.DIR_LEFT_TO_RIGHT, mt.getParagraphDir()); |
| assertNotNull(mt.getDirections(0, 3)); |
| assertEquals(0, mt.getWholeWidth(), 0); |
| assertEquals(0, mt.getWidths().size()); |
| assertEquals(1, mt.getSpanEndCache().size()); |
| assertEquals(3, mt.getSpanEndCache().get(0)); |
| assertNotEquals(0, mt.getFontMetrics().size()); |
| assertNotEquals(0, mt.getNativePtr()); |
| |
| // Recycle it |
| MeasuredParagraph mt2 = |
| MeasuredParagraph.buildForStaticLayout(PAINT, "_VVV_", 1, 4, RTL, false, false, mt); |
| assertEquals(mt2, mt); |
| assertNotNull(mt2.getChars()); |
| assertEquals("VVV", charsToString(mt.getChars())); |
| assertEquals(Layout.DIR_RIGHT_TO_LEFT, mt2.getParagraphDir()); |
| assertNotNull(mt2.getDirections(0, 3)); |
| assertEquals(0, mt2.getWholeWidth(), 0); |
| assertEquals(0, mt2.getWidths().size()); |
| assertEquals(1, mt2.getSpanEndCache().size()); |
| assertEquals(4, mt2.getSpanEndCache().get(0)); |
| assertNotEquals(0, mt2.getFontMetrics().size()); |
| assertNotEquals(0, mt2.getNativePtr()); |
| |
| mt2.recycle(); |
| } |
| |
| @Test |
| public void testFor70146381() { |
| MeasuredParagraph.buildForMeasurement(PAINT, "X…", 0, 2, RTL, null); |
| } |
| } |