created example test

tools.descartes.dml.mm.applicationlevel/META-INF/MANIFEST.MF

@@ -50,3 +50,4 @@ Require-Bundle: org.eclipse.core.runtime,
  org.eclipse.emf.cdo.edit,
  org.apache.commons.math3
 Bundle-ActivationPolicy: lazy
+Import-Package: org.junit

tools.descartes.dml.mm.applicationlevel/src/tools/descartes/dml/mm/applicationlevel/functions/util/tests/MeanCalculatorTest.java

+package tools.descartes.dml.mm.applicationlevel.functions.util.tests;
+
+import java.io.File;
+
+import org.eclipse.emf.common.util.URI;
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.ecore.resource.ResourceSet;
+import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
+import org.junit.Assert;
+import org.junit.Test;
+
+import tools.descartes.dml.mm.applicationlevel.functions.RandomVariable;
+import tools.descartes.dml.mm.applicationlevel.functions.util.RandomVariableHelper;
+
+public class MeanCalculatorTest {
+	private ResourceSet resourceSet;
+
+	@Test
+	public void simpleTest() {
+		RandomVariable randomVariable = loadModel("testfiles/Simple.functions", RandomVariable.class);
+		Assert.assertEquals(1.0, RandomVariableHelper.getNumericalMean(randomVariable.getProbFunction()), 0.0000000001);
+	}
+
+	@SuppressWarnings("unchecked")
+	private <T extends EObject> T loadModel(String fileName, Class<T> class1) {
+		try {
+			File f = new File(fileName);
+			org.eclipse.emf.ecore.resource.Resource res = this.getResourceSet()
+					.getResource(URI.createFileURI(f.getAbsolutePath()), true);
+			T model = (T) res.getContents().get(0);
+			if (model == null)
+				throw new IllegalStateException("Unable to load test file!");
+			return model;
+		} catch (Exception e) {
+			throw new IllegalStateException(e);
+		}
+	}
+
+	public ResourceSet getResourceSet() {
+		if (null == resourceSet)
+			this.resourceSet = new ResourceSetImpl();
+		return resourceSet;
+	}
+}

tools.descartes.dml.mm.applicationlevel/testfiles/Simple.functions

+<?xml version="1.0" encoding="UTF-8"?>
+<functions:RandomVariable xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:functions="http://www.descartes.tools/metamodel/functions/1.0">
+  <probFunction xsi:type="functions:DoubleLiteral" value="1"/>
+</functions:RandomVariable>