diff --git a/gson/src/test/java/com/google/gson/functional/JsonArrayTest.java b/gson/src/test/java/com/google/gson/functional/JsonArrayTest.java
new file mode 100644
index 00000000..ddd89717
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+++ b/gson/src/test/java/com/google/gson/functional/JsonArrayTest.java
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2008 Google Inc.
+ *
+ * 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.
+ */
+
+package com.google.gson.functional;
+
+import com.google.gson.JsonArray;
+import junit.framework.TestCase;
+
+/**
+ * Functional tests for adding primitives to a JsonArray.
+ *
+ * @author Dillon Dixon
+ */
+public class JsonArrayTest extends TestCase {
+
+  public void testStringPrimitiveAddition() {
+    JsonArray jsonArray = new JsonArray();
+
+    jsonArray.add("Hello");
+    jsonArray.add("Goodbye");
+    jsonArray.add("Thank you");
+    jsonArray.add((String) null);
+    jsonArray.add("Yes");
+
+    assertEquals("[\"Hello\",\"Goodbye\",\"Thank you\",null,\"Yes\"]", jsonArray.toString());
+  }
+
+  public void testIntegerPrimitiveAddition() {
+    JsonArray jsonArray = new JsonArray();
+
+    int x = 1;
+    jsonArray.add(x);
+
+    x = 2;
+    jsonArray.add(x);
+
+    x = -3;
+    jsonArray.add(x);
+
+    jsonArray.add((Integer) null);
+
+    x = 4;
+    jsonArray.add(x);
+
+    x = 0;
+    jsonArray.add(x);
+
+    assertEquals("[1,2,-3,null,4,0]", jsonArray.toString());
+  }
+
+  public void testDoublePrimitiveAddition() {
+    JsonArray jsonArray = new JsonArray();
+
+    double x = 1.0;
+    jsonArray.add(x);
+
+    x = 2.13232;
+    jsonArray.add(x);
+
+    x = 0.121;
+    jsonArray.add(x);
+
+    jsonArray.add((Double) null);
+
+    x = -0.00234;
+    jsonArray.add(x);
+
+    jsonArray.add((Double) null);
+
+    assertEquals("[1.0,2.13232,0.121,null,-0.00234,null]", jsonArray.toString());
+  }
+
+  public void testBooleanPrimitiveAddition() {
+    JsonArray jsonArray = new JsonArray();
+
+    jsonArray.add(true);
+    jsonArray.add(true);
+    jsonArray.add(false);
+    jsonArray.add(false);
+    jsonArray.add((Boolean) null);
+    jsonArray.add(true);
+
+    assertEquals("[true,true,false,false,null,true]", jsonArray.toString());
+  }
+
+  public void testCharPrimitiveAddition() {
+    JsonArray jsonArray = new JsonArray();
+
+    jsonArray.add('a');
+    jsonArray.add('e');
+    jsonArray.add('i');
+    jsonArray.add((char) 111);
+    jsonArray.add((Character) null);
+    jsonArray.add('u');
+    jsonArray.add("and sometimes Y");
+
+    assertEquals("[\"a\",\"e\",\"i\",\"o\",null,\"u\",\"and sometimes Y\"]", jsonArray.toString());
+  }
+
+  public void testSameAddition() {
+    JsonArray jsonArray = new JsonArray();
+
+    jsonArray.add('a');
+    jsonArray.add('a');
+    jsonArray.add(true);
+    jsonArray.add(true);
+    jsonArray.add(1212);
+    jsonArray.add(1212);
+    jsonArray.add(34.34);
+    jsonArray.add(34.34);
+    jsonArray.add((Boolean) null);
+    jsonArray.add((Boolean) null);
+
+    assertEquals("[\"a\",\"a\",true,true,1212,1212,34.34,34.34,null,null]", jsonArray.toString());
+  }
+}