| /* |
| * 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.iotdb.tsfile.encoding.decoder; |
| |
| import org.apache.iotdb.tsfile.common.conf.TSFileConfig; |
| import org.apache.iotdb.tsfile.encoding.encoder.DictionaryEncoder; |
| import org.apache.iotdb.tsfile.utils.Binary; |
| |
| import org.junit.Test; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.nio.ByteBuffer; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| public class DictionaryDecoderTest { |
| private DictionaryEncoder encoder = new DictionaryEncoder(); |
| private DictionaryDecoder decoder = new DictionaryDecoder(); |
| private ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| |
| @Test |
| public void testSingle() { |
| testAll("a"); |
| testAll("b"); |
| testAll("c"); |
| } |
| |
| @Test |
| public void testAllUnique() { |
| testAll("a", "b", "c"); |
| testAll("x", "o", "q"); |
| testAll(",", ".", "c", "b", "e"); |
| } |
| |
| @Test |
| public void testAllSame() { |
| testAll("a", "a", "a"); |
| testAll("b", "b", "b"); |
| } |
| |
| @Test |
| public void testMixed() { |
| // all characters |
| String[] allChars = new String[256]; |
| allChars[0] = "" + (char) ('a' + 1); |
| for (int i = 0; i < 256; i++) { |
| allChars[i] = "" + (char) (i) + (char) (i) + (char) (i); |
| } |
| testAll(allChars); |
| } |
| |
| private void testAll(String... all) { |
| for (String s : all) { |
| encoder.encode(new Binary(s, TSFileConfig.STRING_CHARSET), baos); |
| } |
| encoder.flush(baos); |
| |
| ByteBuffer out = ByteBuffer.wrap(baos.toByteArray()); |
| |
| for (String s : all) { |
| assertTrue(decoder.hasNext(out)); |
| assertEquals(s, decoder.readBinary(out).getStringValue(TSFileConfig.STRING_CHARSET)); |
| } |
| |
| decoder.reset(); |
| baos.reset(); |
| } |
| } |