SLIDER-1145 work around hadoop 2.8 changes in DefaultResourceCalculator.normalize
diff --git a/slider-core/src/test/groovy/org/apache/slider/server/appmaster/model/mock/MockResource.groovy b/slider-core/src/test/groovy/org/apache/slider/server/appmaster/model/mock/MockResource.groovy
index 91ab43b..cf25bd7 100644
--- a/slider-core/src/test/groovy/org/apache/slider/server/appmaster/model/mock/MockResource.groovy
+++ b/slider-core/src/test/groovy/org/apache/slider/server/appmaster/model/mock/MockResource.groovy
@@ -38,4 +38,11 @@
     return diff;
   }
 
+  public void setMemorySize(long memory) {
+    this.memory = memory
+  }
+
+  public long getMemorySize() {
+    return memory
+  }
 }