Merge pull request #30 from stleary/confirmValueToStringFix

Fix tabs, add valueToString() test to JSONObjectTest

JSONObjectTest.java

@@ -1471,6 +1471,25 @@ public class JSONObjectTest {
                 jsonArray.toString().equals(JSONObject.valueToString(array))); 
     }
 
+    /**
+     * Confirm that https://github.com/douglascrockford/JSON-java/issues/167 is fixed.
+     * The following code was throwing a ClassCastException in the 
+     * JSONObject(Map<String, Object>) constructor
+     */
+    @Test
+    public void valueToStringConfirmException() {
+        String expectedStr = "{\"1\":\"myValue\"}";
+        Map<Integer, String> myMap = new HashMap<Integer, String>();
+        myMap.put(1,  "myValue");
+        // this is the test, it should not throw an exception
+        String str = JSONObject.valueToString(myMap);
+        // confirm result, just in case
+        JSONObject jsonObject = new JSONObject(str);
+        JSONObject expectedJsonObject = new JSONObject(expectedStr);
+        Util.compareActualVsExpectedJsonObjects(jsonObject, 
+                expectedJsonObject);
+    }
+
     /**
      * Exercise the JSONObject wrap() method. Sometimes wrap() will change
      * the object being wrapped, other times not. The purpose of wrap() is