test for heap.classes(), heap.roots(), heap.finalizables() fixed

Author: thurka

visualvm/libs.profiler/profiler.oql/test/unit/src/org/graalvm/visualvm/lib/profiler/oql/engine/api/impl/OQLEngineTest.java

@@ -198,50 +198,50 @@ public void testHeapRoots() throws Exception {
         System.out.println("heap.roots");
         final int[] counter = new int[1];
 
-        String query = "select heap.roots";
+        String query = "select heap.roots()";
 
         instance.executeQuery(query, new ObjectVisitor() {
 
             public boolean visit(Object o) {
                 counter[0]++;
-                return true;
+                return false;
             }
         });
-        assertTrue(counter[0] > 0);
+        assertTrue(counter[0] == 404);
     }
 
     @Test
     public void testHeapClasses() throws Exception {
         System.out.println("heap.classes");
         final int[] counter = new int[1];
 
-        String query = "select heap.classes";
+        String query = "select heap.classes()";
 
         instance.executeQuery(query, new ObjectVisitor() {
 
             public boolean visit(Object o) {
                 counter[0]++;
-                return true;
+                return false;
             }
         });
-        assertTrue(counter[0] > 0);
+        assertTrue(counter[0] == 443);
     }
 
     @Test
     public void testHeapFinalizables() throws Exception {
         System.out.println("heap.finalizables");
         final int[] counter = new int[1];
 
-        String query = "select heap.finalizables";
+        String query = "select heap.finalizables()";
 
         instance.executeQuery(query, new ObjectVisitor() {
 
             public boolean visit(Object o) {
                 counter[0]++;
-                return true;
+                return false;
             }
         });
-        assertTrue(counter[0] > 0);
+        assertTrue(counter[0] == 0);
     }
 
     @Test