openecomp-be/lib/openecomp-core-lib/openecomp-utilities-lib/src/test/java/org/openecomp/core/utilities/CommonMethodsTest.java

   1 /*
   2  * Copyright © 2016-2017 European Support Limited
   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 org.openecomp.core.utilities;
  18
  19 import org.testng.annotations.Test;
  20
  21 import java.util.Arrays;
  22 import java.util.Collections;
  23
  24 import static org.testng.Assert.*;
  25
  26 public class CommonMethodsTest {
  27
  28   private static final String[] ARRAY = { "A", "B", "C" };
  29
  30   @Test
  31   public void testPrintStackTrace() {
  32
  33     String trace = CommonMethods.printStackTrace();
  34     assertTrue(trace.contains("org.openecomp.core.utilities" +
  35         ".CommonMethods.printStackTrace(CommonMethods.java:"));
  36     assertTrue(trace.contains("org.openecomp.core.utilities" +
  37         ".CommonMethodsTest.testPrintStackTrace(CommonMethodsTest.java"));
  38   }
  39
  40   @Test
  41   public void testArrayToCommaSeparatedString() {
  42     assertEquals(CommonMethods.arrayToCommaSeparatedString(ARRAY), "A,B,C");
  43   }
  44
  45   @Test
  46   public void testArrayToCommaSeparatedStringEmpty() {
  47     assertEquals(CommonMethods.arrayToCommaSeparatedString(new String[0]), "");
  48   }
  49
  50   @Test
  51   public void testArrayToCommaSeparatedStringNulls() {
  52     assertEquals(CommonMethods.arrayToCommaSeparatedString(new String[] { null, null }), "null,null");
  53   }
  54
  55   @Test
  56   public void testArrayToCommaSeparatedStringEmptyStrings() {
  57     assertEquals(CommonMethods.arrayToCommaSeparatedString(new String[] { "", "" }), ",");
  58   }
  59
  60   @Test(expectedExceptions = NullPointerException.class)
  61   public void testArrayToCommaSeparatedStringNull() {
  62     CommonMethods.arrayToCommaSeparatedString(null);
  63   }
  64
  65   @Test
  66   public void testArrayToSeparatedString() {
  67     assertEquals(CommonMethods.arrayToSeparatedString(ARRAY, '/'),"A/B/C");
  68   }
  69
  70   @Test
  71   public void testArrayToSeparatedStringEmpty() {
  72     assertEquals(CommonMethods.arrayToSeparatedString(new String[0], '/'),"");
  73   }
  74
  75   @Test
  76   public void testArrayToSeparatedStringNulls() {
  77     assertEquals(CommonMethods.arrayToSeparatedString(new String[] {null, null}, '/'),"null/null");
  78   }
  79
  80   @Test
  81   public void testArrayToSeparatedStringEmptyStrings() {
  82     assertEquals(CommonMethods.arrayToSeparatedString(new String[] {"", ""}, '/'),"/");
  83   }
  84
  85   @Test(expectedExceptions = NullPointerException.class)
  86   public void testArrayToSeparatedStringNull() {
  87     CommonMethods.arrayToSeparatedString(null, '/');
  88   }
  89
  90   @Test
  91   public void testCollectionToCommaSeparatedString() {
  92     assertEquals(CommonMethods.collectionToCommaSeparatedString(Arrays.asList(ARRAY)), "A,B,C");
  93   }
  94
  95   @Test
  96   public void testCollectionToCommaSeparatedStringNulls() {
  97     assertEquals(CommonMethods.collectionToCommaSeparatedString(Arrays.asList(null, null)), "null,null");
  98   }
  99
 100   @Test
 101   public void testCollectionToCommaSeparatedStringEmptyStrings() {
 102     assertEquals(CommonMethods.collectionToCommaSeparatedString(Arrays.asList("", "")), ",");
 103   }
 104
 105   @Test
 106   public void testCollectionToCommaSeparatedStringEmtpy() {
 107     assertEquals(CommonMethods.collectionToCommaSeparatedString(Collections.emptySet()), "");
 108   }
 109
 110   @Test(expectedExceptions = NullPointerException.class)
 111   public void testCollectionToCommaSeparatedStringNull() {
 112     assertNull(CommonMethods.collectionToCommaSeparatedString(null));
 113   }
 114
 115 }