Adding a simple key to address derivation test

graphenej/src/test/java/cy/agorise/graphenej/KeyTest.java

@@ -0,0 +1,25 @@
+package cy.agorise.graphenej;
+
+import junit.framework.Assert;
+
+import org.bitcoinj.core.DumpedPrivateKey;
+import org.bitcoinj.core.ECKey;
+import org.junit.Test;
+
+/**
+ * Created by nelson on 11/2/17.
+ */
+
+public class KeyTest {
+
+    /**
+     * Testing key to address derivation
+     */
+    @Test
+    public void testKeyToAddress(){
+        String wif = "5J96pne45qWM1WpektoeazN6k9Mt93jQ7LyueRxFfEMTiy6yxjM";
+        ECKey sourcePrivate = DumpedPrivateKey.fromBase58(null, wif).getKey();
+        Address address = new Address(ECKey.fromPublicOnly(sourcePrivate.getPubKey()));
+        Assert.assertEquals("Generated address matches expected one", address.toString(), "BTS8RiFgs8HkcVPVobHLKEv6yL3iXcC9SWjbPVS15dDAXLG9GYhnY");
+    }
+}