Add Base Entity Matcher

Signed-off-by: SirWayne <dennis.melzer@bosch-si.com>

hawkbit-repository/hawkbit-repository-test/src/main/java/org/eclipse/hawkbit/repository/test/matcher/BaseEntityMatcher.java

@@ -0,0 +1,42 @@
+/**
+ * Copyright (c) 2015 Bosch Software Innovations GmbH and others.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.eclipse.hawkbit.repository.test.matcher;
+
+import org.eclipse.hawkbit.repository.model.BaseEntity;
+import org.hamcrest.Factory;
+import org.hamcrest.FeatureMatcher;
+import org.hamcrest.Matcher;
+import org.hamcrest.Matchers;
+
+/**
+ * Matcher for {@link BaseEntity}.
+ */
+public class BaseEntityMatcher {
+
+    private BaseEntityMatcher() {
+    }
+
+    @Factory
+    public static Matcher<BaseEntity> hasId(final Long id) {
+        return new HasIdMatcher(Matchers.equalTo(id));
+    }
+
+    private static class HasIdMatcher extends FeatureMatcher<BaseEntity, Long> {
+
+        public HasIdMatcher(final Matcher<Long> subMatcher) {
+            super(subMatcher, "getId()", "id");
+        }
+
+        @Override
+        protected Long featureValueOf(final BaseEntity baseEntity) {
+            return baseEntity.getId();
+        }
+    }
+
+}