Added graph-related utility code.
diff --git a/utils/misc/src/test/java/org/onlab/graph/TestVertex.java b/utils/misc/src/test/java/org/onlab/graph/TestVertex.java
new file mode 100644
index 0000000..2a1c7da
--- /dev/null
+++ b/utils/misc/src/test/java/org/onlab/graph/TestVertex.java
@@ -0,0 +1,37 @@
+package org.onlab.graph;
+
+import java.util.Objects;
+
+import static com.google.common.base.Objects.toStringHelper;
+
+/**
+ * Test vertex.
+ */
+public class TestVertex implements Vertex {
+
+ private final String name;
+
+ public TestVertex(String name) {
+ this.name = name;
+ }
+
+ @Override
+ public String toString() {
+ return toStringHelper(this).add("name", name).toString();
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(name);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (obj instanceof TestVertex) {
+ final TestVertex other = (TestVertex) obj;
+ return Objects.equals(this.name, other.name);
+ }
+ return false;
+ }
+
+}