fixing broken tests

changing format of functions path expr with/without args
removing errant unwrap call - added to test

json-path/src/main/java/com/jayway/jsonpath/internal/path/FunctionPathToken.java

@@ -21,7 +21,7 @@ public class FunctionPathToken extends PathToken {
     private final List<Parameter> functionParams;
 
     public FunctionPathToken(String pathFragment, List<Parameter> parameters) {
-        this.pathFragment = pathFragment;
+        this.pathFragment = pathFragment + ((parameters != null && parameters.size() > 0) ? "(...)" : "()");
         if(null != pathFragment){
             functionName = pathFragment;
             functionParams = parameters;

json-path/src/main/java/com/jayway/jsonpath/spi/json/AbstractJsonProvider.java

@@ -52,7 +52,7 @@ public abstract class AbstractJsonProvider implements JsonProvider {
     public Object getLastElement(Object obj) {
         if (null != obj) {
             int len = this.length(obj);
-            return unwrap(getArrayIndex(obj, len-1));
+            return getArrayIndex(obj, len-1);
         }
         return null;
     }

json-path/src/test/java/com/jayway/jsonpath/internal/function/BaseFunctionTest.java

@@ -15,9 +15,6 @@ public class BaseFunctionTest {
     protected static final String NUMBER_SERIES = "{\"empty\": [], \"numbers\" : [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]}";
     protected static final String TEXT_SERIES = "{\"urls\": [\"http://api.worldbank.org/countries/all/?format=json\", \"http://api.worldbank.org/countries/all/?format=json\"], \"text\" : [ \"a\", \"b\", \"c\", \"d\", \"e\", \"f\" ]}";
 
-
-
-
     /**
      * Verify the function returns the correct result based on the input expectedValue
      *
@@ -32,7 +29,7 @@ public class BaseFunctionTest {
      */
     protected void verifyFunction(Configuration conf, String pathExpr, String json, Object expectedValue) {
         Object result = using(conf).parse(json).read(pathExpr);
-        assertThat(result).isEqualTo(expectedValue);
+        assertThat(conf.jsonProvider().unwrap(result)).isEqualTo(expectedValue);
     }
 
     protected void verifyMathFunction(Configuration conf, String pathExpr, Object expectedValue) {