| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.hadoop.mapreduce.lib.db; |
| |
| import java.io.IOException; |
| import java.math.BigDecimal; |
| import java.sql.SQLException; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import junit.framework.TestCase; |
| |
| public class TestTextSplitter extends TestCase { |
| |
| public String formatArray(Object [] ar) { |
| StringBuilder sb = new StringBuilder(); |
| sb.append("["); |
| boolean first = true; |
| for (Object val : ar) { |
| if (!first) { |
| sb.append(", "); |
| } |
| |
| sb.append(val.toString()); |
| first = false; |
| } |
| |
| sb.append("]"); |
| return sb.toString(); |
| } |
| |
| public void assertArrayEquals(Object [] expected, Object [] actual) { |
| for (int i = 0; i < expected.length; i++) { |
| try { |
| assertEquals("Failure at position " + i + "; got " + actual[i] |
| + " instead of " + expected[i] + "; actual array is " + formatArray(actual), |
| expected[i], actual[i]); |
| } catch (ArrayIndexOutOfBoundsException oob) { |
| fail("Expected array with " + expected.length + " elements; got " + actual.length |
| + ". Actual array is " + formatArray(actual)); |
| } |
| } |
| |
| if (actual.length > expected.length) { |
| fail("Actual array has " + actual.length + " elements; expected " + expected.length |
| + ". Actual array is " + formatArray(actual)); |
| } |
| } |
| |
| public void testStringConvertEmpty() { |
| TextSplitter splitter = new TextSplitter(); |
| BigDecimal emptyBigDec = splitter.stringToBigDecimal(""); |
| assertEquals(BigDecimal.ZERO, emptyBigDec); |
| } |
| |
| public void testBigDecConvertEmpty() { |
| TextSplitter splitter = new TextSplitter(); |
| String emptyStr = splitter.bigDecimalToString(BigDecimal.ZERO); |
| assertEquals("", emptyStr); |
| } |
| |
| public void testConvertA() { |
| TextSplitter splitter = new TextSplitter(); |
| String out = splitter.bigDecimalToString(splitter.stringToBigDecimal("A")); |
| assertEquals("A", out); |
| } |
| |
| public void testConvertZ() { |
| TextSplitter splitter = new TextSplitter(); |
| String out = splitter.bigDecimalToString(splitter.stringToBigDecimal("Z")); |
| assertEquals("Z", out); |
| } |
| |
| public void testConvertThreeChars() { |
| TextSplitter splitter = new TextSplitter(); |
| String out = splitter.bigDecimalToString(splitter.stringToBigDecimal("abc")); |
| assertEquals("abc", out); |
| } |
| |
| public void testConvertStr() { |
| TextSplitter splitter = new TextSplitter(); |
| String out = splitter.bigDecimalToString(splitter.stringToBigDecimal("big str")); |
| assertEquals("big str", out); |
| } |
| |
| public void testConvertChomped() { |
| TextSplitter splitter = new TextSplitter(); |
| String out = splitter.bigDecimalToString(splitter.stringToBigDecimal("AVeryLongStringIndeed")); |
| assertEquals("AVeryLon", out); |
| } |
| |
| public void testAlphabetSplit() throws SQLException { |
| // This should give us 25 splits, one per letter. |
| TextSplitter splitter = new TextSplitter(); |
| List<String> splits = splitter.split(25, "A", "Z", ""); |
| String [] expected = { "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", |
| "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z" }; |
| assertArrayEquals(expected, splits.toArray(new String [0])); |
| } |
| |
| public void testCommonPrefix() throws SQLException { |
| // Splits between 'Hand' and 'Hardy' |
| TextSplitter splitter = new TextSplitter(); |
| List<String> splits = splitter.split(5, "nd", "rdy", "Ha"); |
| // Don't check for exact values in the middle, because the splitter generates some |
| // ugly Unicode-isms. But do check that we get multiple splits and that it starts |
| // and ends on the correct points. |
| assertEquals("Hand", splits.get(0)); |
| assertEquals("Hardy", splits.get(splits.size() -1)); |
| assertEquals(6, splits.size()); |
| } |
| } |
| |