1 files changed, 156 insertions, 0 deletions
diff --git a/gson/src/test/java/org/onap/policy/common/gson/GsonMessageBodyHandlerTest.java b/gson/src/test/java/org/onap/policy/common/gson/GsonMessageBodyHandlerTest.java
new file mode 100644
index 00000000..85ecfea4
--- /dev/null
+++ b/gson/src/test/java/org/onap/policy/common/gson/GsonMessageBodyHandlerTest.java
@@ -0,0 +1,156 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2019 AT&T Intellectual Property. 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.
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.common.gson;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import javax.ws.rs.core.MediaType;
+import org.junit.Before;
+import org.junit.Test;
+import org.onap.policy.common.gson.GsonMessageBodyHandler;
+
+public class GsonMessageBodyHandlerTest {
+    private static final String GEN_TYPE = "some-type";
+    private static final String[] subtypes = {"json", "jSoN", "hello+json", "javascript", "x-javascript", "x-json"};
+
+    @SuppressWarnings("rawtypes")
+    private static final Class GEN_CLASS = MyObject.class;
+
+    @SuppressWarnings("unchecked")
+    private static final Class<Object> CLASS_OBJ = GEN_CLASS;
+
+    private GsonMessageBodyHandler hdlr;
+
+    @Before
+    public void setUp() {
+        hdlr = new GsonMessageBodyHandler();
+    }
+
+    @Test
+    public void testIsWriteable() {
+        // null media type
+        assertTrue(hdlr.isWriteable(null, null, null, null));
+
+        for (String subtype : subtypes) {
+            assertTrue("writeable " + subtype, hdlr.isWriteable(null, null, null, new MediaType(GEN_TYPE, subtype)));
+
+        }
+
+        // the remaining should be FALSE
+
+        // null subtype
+        assertFalse(hdlr.isWriteable(null, null, null, new MediaType(GEN_TYPE, null)));
+
+        // text subtype
+        assertFalse(hdlr.isWriteable(null, null, null, MediaType.TEXT_HTML_TYPE));
+    }
+
+    @Test
+    public void testGetSize() {
+        assertEquals(-1, hdlr.getSize(null, null, null, null, null));
+    }
+
+    @Test
+    public void testWriteTo_testReadFrom() throws Exception {
+        ByteArrayOutputStream outstr = new ByteArrayOutputStream();
+        MyObject obj1 = new MyObject(10);
+        hdlr.writeTo(obj1, obj1.getClass(), CLASS_OBJ, null, null, null, outstr);
+
+        Object obj2 = hdlr.readFrom(CLASS_OBJ, CLASS_OBJ, null, null, null,
+                        new ByteArrayInputStream(outstr.toByteArray()));
+        assertEquals(obj1.toString(), obj2.toString());
+    }
+
+    @Test
+    public void testWriteTo_DifferentTypes() throws Exception {
+        ByteArrayOutputStream outstr = new ByteArrayOutputStream();
+
+        // use a derived type, but specify the base type when writing
+        MyObject obj1 = new MyObject(10) {};
+        hdlr.writeTo(obj1, obj1.getClass(), CLASS_OBJ, null, null, null, outstr);
+
+        Object obj2 = hdlr.readFrom(CLASS_OBJ, CLASS_OBJ, null, null, null,
+                        new ByteArrayInputStream(outstr.toByteArray()));
+        assertEquals(obj1.toString(), obj2.toString());
+    }
+
+    @Test
+    public void testIsReadable() {
+        // null media type
+        assertTrue(hdlr.isReadable(null, null, null, null));
+
+        // null subtype
+        assertFalse(hdlr.isReadable(null, null, null, new MediaType(GEN_TYPE, null)));
+
+        for (String subtype : subtypes) {
+            assertTrue("readable " + subtype, hdlr.isReadable(null, null, null, new MediaType(GEN_TYPE, subtype)));
+
+        }
+
+        // the remaining should be FALSE
+
+        // null subtype
+        assertFalse(hdlr.isReadable(null, null, null, new MediaType(GEN_TYPE, null)));
+
+        // text subtype
+        assertFalse(hdlr.isReadable(null, null, null, MediaType.TEXT_HTML_TYPE));
+    }
+
+    @Test
+    public void testReadFrom_DifferentTypes() throws Exception {
+        ByteArrayOutputStream outstr = new ByteArrayOutputStream();
+        MyObject obj1 = new MyObject(10);
+        hdlr.writeTo(obj1, obj1.getClass(), CLASS_OBJ, null, null, null, outstr);
+
+        // use a derived type, but specify the base type when reading
+        @SuppressWarnings("rawtypes")
+        Class clazz = new MyObject() {}.getClass();
+
+        @SuppressWarnings("unchecked")
+        Class<Object> objclazz = clazz;
+
+        Object obj2 = hdlr.readFrom(objclazz, CLASS_OBJ, null, null, null,
+                        new ByteArrayInputStream(outstr.toByteArray()));
+        assertEquals(obj1.toString(), obj2.toString());
+    }
+
+    public static class MyObject {
+        private int id;
+
+        public MyObject() {
+            super();
+        }
+
+        public MyObject(int id) {
+            this.id = id;
+        }
+
+        @Override
+        public String toString() {
+            return "MyObject [id=" + id + "]";
+        }
+    }
+
+}