Adding unit tests for the aggregate exception

Author: rpmoore

ds3-interfaces/src/test/java/com/spectralogic/ds3client/exceptions/AggregateException_Test.java

@@ -0,0 +1,73 @@
+/*
+ * ****************************************************************************
+ *    Copyright 2014-2016 Spectra Logic Corporation. All Rights Reserved.
+ *    Licensed under the Apache License, Version 2.0 (the "License"). You may not use
+ *    this file except in compliance with the License. A copy of the License is located at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    or in the "license" file accompanying this file.
+ *    This file 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 com.spectralogic.ds3client.exceptions;
+
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.CoreMatchers.notNullValue;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+
+public class AggregateException_Test {
+
+    @Test
+    public void basicAggregate() {
+        final Exception e1 = new Exception("first exception");
+        final Exception e2 = new Exception("second exception");
+
+        final List<Throwable> exceptionList = new ArrayList<>();
+        exceptionList.add(e1);
+        exceptionList.add(e2);
+
+        final AggregateException aggregateException = new AggregateException(exceptionList);
+
+        final Iterator<Throwable> exceptionIter = aggregateException.getExceptions().iterator();
+
+        assertTrue(exceptionIter.hasNext());
+        assertThat(exceptionIter.next(), is(notNullValue()));
+        assertTrue(exceptionIter.hasNext());
+        assertThat(exceptionIter.next(), is(notNullValue()));
+        assertFalse(exceptionIter.hasNext());
+    }
+
+    @Test
+    public void repeatIteration() {
+        final Exception e1 = new Exception("first exception");
+
+        final List<Throwable> exceptionList = new ArrayList<>();
+        exceptionList.add(e1);
+
+        final AggregateException aggregateException = new AggregateException(exceptionList);
+
+        final Iterator<Throwable> exceptionIter = aggregateException.getExceptions().iterator();
+
+        assertTrue(exceptionIter.hasNext());
+        assertThat(exceptionIter.next(), is(notNullValue()));
+        assertFalse(exceptionIter.hasNext());
+
+        final Iterator<Throwable> repeatIter = aggregateException.getExceptions().iterator();
+        assertTrue(repeatIter.hasNext());
+        assertThat(repeatIter.next(), is(notNullValue()));
+        assertFalse(repeatIter.hasNext());
+
+    }
+}