1 /* 2 * Copyright 2016-17, OpenCensus Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package io.opencensus.internal; 18 19 import static org.junit.Assert.assertFalse; 20 import static org.junit.Assert.assertTrue; 21 22 import org.junit.Test; 23 import org.junit.runner.RunWith; 24 import org.junit.runners.JUnit4; 25 26 /** Tests for {@link StringUtils}. */ 27 @RunWith(JUnit4.class) 28 public final class StringUtilsTest { 29 30 @Test isPrintableString()31 public void isPrintableString() { 32 assertTrue(StringUtils.isPrintableString("abcd")); 33 assertFalse(StringUtils.isPrintableString("\2ab\3cd")); 34 } 35 } 36