Trigger tests

Author: onufryk

core-api/src/test/java/com/optimizely/ab/OptimizelyBuilderTest.java

@@ -180,6 +180,7 @@ public void builderThrowsConfigParseExceptionForEmptyDatafile() throws Exception
     @Test
     public void builderThrowsConfigParseExceptionForInvalidDatafile() throws Exception {
         thrown.expect(ConfigParseException.class);
-        Optimizely.builder("{invalidDatafile}", mockEventHandler).build();
+        String invalidJson = "{invalidDatafile}";
+        Optimizely.builder(invalidJson, mockEventHandler).build();
     }
 }