/*
* 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.flink.util;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import org.apache.flink.types.StringValue;
import org.apache.flink.util.SimpleStringUtils;
import org.apache.flink.util.SimpleStringUtils.WhitespaceTokenizer;
import org.junit.Test;
public class SimpleStringUtilsTest {
@Test
public void testToLowerCaseConverting() {
StringValue testString = new StringValue("TEST");
SimpleStringUtils.toLowerCase(testString);
assertEquals(new StringValue("test"), testString);
}
@Test
public void testReplaceNonWordChars() {
StringValue testString = new StringValue("TEST123_@");
SimpleStringUtils.replaceNonWordChars(testString, '!');
assertEquals(new StringValue("TEST123_!"), testString);
}
@Test
public void testTokenizerOnStringWithoutNexToken() {
StringValue testString = new StringValue("test");
SimpleStringUtils.WhitespaceTokenizer tokenizer = new WhitespaceTokenizer();
tokenizer.setStringToTokenize(testString);
//first token
tokenizer.next(testString);
//next token is not exist
assertFalse(tokenizer.next(testString));
}
@Test
public void testTokenizerOnStringWithNexToken() {
StringValue testString = new StringValue("test test");
SimpleStringUtils.WhitespaceTokenizer tokenizer = new WhitespaceTokenizer();
tokenizer.setStringToTokenize(testString);
assertTrue(tokenizer.next(testString));
}
@Test
public void testTokenizerOnStringOnlyWithDelimiter() {
StringValue testString = new StringValue(" ");
SimpleStringUtils.WhitespaceTokenizer tokenizer = new WhitespaceTokenizer();
tokenizer.setStringToTokenize(testString);
assertFalse(tokenizer.next(testString));
}
}