| /* |
| * Copyright 2000-2014 JetBrains s.r.o. |
| * |
| * 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 com.intellij.codeEditor.printing; |
| |
| import com.intellij.util.containers.IntArrayList; |
| import org.junit.Test; |
| |
| import static org.junit.Assert.*; |
| |
| public class LineWrapperTest { |
| private final LineWrapper.WidthProvider myWidthProvider = new LineWrapper.WidthProvider() { |
| @Override |
| public double getWidth(char[] text, int start, int count, double x) { |
| return count; // char width of 1 pixel for all characters |
| } |
| }; |
| |
| @Test |
| public void testEmpty() { |
| doTest("", false, 0); |
| doTest("", true, 0); |
| doTest("", false, 1); |
| doTest("", true, 1); |
| } |
| |
| @Test |
| public void testSingleChar() { |
| doTest("a", false, 0.5, |
| 0); |
| doTest("a", true, 0.5); |
| } |
| |
| @Test |
| public void testCharSplit() { |
| doTest("aa", false, 1.5, |
| 0, 1); |
| doTest("aa", true, 1.5, |
| 1); |
| } |
| |
| @Test |
| public void testExtreme() { |
| doTest("aa", false, 0.5, |
| 0, 1); |
| doTest("aa", true, 0.5, |
| 1); |
| } |
| |
| @Test |
| public void testWordSplit() { |
| doTest("aa aa aa", false, 3.5, |
| 2, 4, 6, 8); |
| doTest("aa aa aa", true, 3.5, |
| 2, 4, 6, 8); |
| } |
| |
| private void doTest(String text, boolean atLineStart, double clipWidth, int... expectedBreaks) { |
| IntArrayList actualBreaks = LineWrapper.calcBreakOffsets(text.toCharArray(), 0, text.length(), atLineStart ? 0 : 1, 0, clipWidth, myWidthProvider); |
| assertArrayEquals(expectedBreaks, actualBreaks.toArray()); |
| } |
| } |