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