Implememented: Add unit tests for ‘UtilGenerics#checkCollectionCast’

(OFBIZ-11141)


git-svn-id: https://svn.apache.org/repos/asf/ofbiz/ofbiz-framework/trunk@1863487 13f79535-47bb-0310-9956-ffa450edef68

framework/base/src/test/java/org/apache/ofbiz/base/util/UtilGenericsTest.java

@@ -0,0 +1,48 @@
+/*
+ * 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.ofbiz.base.util;
+
+import static org.junit.Assert.assertNull;
+
+import java.util.Arrays;
+
+import org.junit.Test;
+
+public class UtilGenericsTest {
+
+    @Test
+    public void basicCheckCollection() {
+        UtilGenerics.<String>checkCollection(Arrays.asList("foo", "bar", "baz"), String.class);
+    }
+
+    @Test(expected = ClassCastException.class)
+    public void incompatibleCollectionCheckCollection() {
+        UtilGenerics.<String>checkCollection("not a collection", String.class);
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void heterogenousCheckCollection() {
+        UtilGenerics.<String>checkCollection(Arrays.asList("foo", 0), String.class);
+    }
+
+    @Test
+    public void nullCheckCollection() {
+        assertNull(UtilGenerics.<String>checkCollection(null, String.class));
+    }
+}