Add a test for `Arrays`
diff --git a/src/test/org/apache/groovy/util/ArraysTest.java b/src/test/org/apache/groovy/util/ArraysTest.java
new file mode 100644
index 0000000..f46e336
--- /dev/null
+++ b/src/test/org/apache/groovy/util/ArraysTest.java
@@ -0,0 +1,58 @@
+/*
+ * 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.groovy.util;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class ArraysTest {
+ @Test
+ public void testMerge0() {
+ try {
+ Integer[] result = Arrays.merge();
+ Assert.fail("should throw IllegalArgumentException");
+ } catch (IllegalArgumentException e) {
+ Assert.assertTrue(e.getMessage().contains("arrays should not be empty"));
+ }
+ }
+
+ @Test
+ public void testMerge1() {
+ Integer[] a = new Integer[] {1, 2};
+ Integer[] result = Arrays.merge(a);
+ Assert.assertArrayEquals(new Integer[] {1, 2}, result);
+ }
+
+ @Test
+ public void testMerge2() {
+ Integer[] a = new Integer[] {1, 2};
+ Integer[] b = new Integer[] {3, 4};
+ Integer[] result = Arrays.merge(a, b);
+ Assert.assertArrayEquals(new Integer[] {1, 2, 3, 4}, result);
+ }
+
+ @Test
+ public void testMerge3() {
+ Integer[] a = new Integer[] {1, 2};
+ Integer[] b = new Integer[] {3, 4};
+ Integer[] c = new Integer[] {5, 6, 7, 8, 9};
+ Integer[] result = Arrays.merge(a, b, c);
+ Assert.assertArrayEquals(new Integer[] {1, 2, 3, 4, 5, 6, 7, 8, 9}, result);
+ }
+}
