| /* |
| * Copyright 2000-2012 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.openapi.util.text; |
| |
| import com.intellij.openapi.util.Ref; |
| import gnu.trove.TIntArrayList; |
| import junit.framework.TestCase; |
| |
| public class TrigramBuilderTest extends TestCase { |
| public void testBuilder() { |
| final Ref<Integer> trigramCountRef = new Ref<Integer>(); |
| final TIntArrayList list = new TIntArrayList(); |
| |
| TrigramBuilder.processTrigrams("String$CharData", new TrigramBuilder.TrigramProcessor() { |
| @Override |
| public boolean execute(int value) { |
| list.add(value); |
| return true; |
| } |
| |
| @Override |
| public boolean consumeTrigramsCount(int count) { |
| trigramCountRef.set(count); |
| return true; |
| } |
| }); |
| |
| list.sort(); |
| Integer trigramCount = trigramCountRef.get(); |
| assertNotNull(trigramCount); |
| |
| int expectedTrigramCount = 13; |
| assertEquals(expectedTrigramCount, (int)trigramCount); |
| assertEquals(expectedTrigramCount, list.size()); |
| |
| int[] expected = {buildTrigram("$Ch"), buildTrigram("arD"), buildTrigram("ata"), 6514785, 6578548, 6759523, 6840690, 6909543, 7235364, 7496801, 7498094, 7566450, 7631465, }; |
| for(int i = 0; i < expectedTrigramCount; ++i) assertEquals(expected[i], list.getQuick(i)); |
| } |
| |
| private static int buildTrigram(String s) { |
| int tc1 = StringUtil.toLowerCase(s.charAt(0)); |
| int tc2 = (tc1 << 8) + StringUtil.toLowerCase(s.charAt(1)); |
| return (tc2 << 8) + StringUtil.toLowerCase(s.charAt(2)); |
| } |
| } |