diff --git a/openid-connect-client/src/test/java/org/mitre/openid/connect/client/service/impl/TestSignedAuthRequestUrlBuilder.java b/openid-connect-client/src/test/java/org/mitre/openid/connect/client/service/impl/TestSignedAuthRequestUrlBuilder.java
index 915195cad..e1caa7838 100644
--- a/openid-connect-client/src/test/java/org/mitre/openid/connect/client/service/impl/TestSignedAuthRequestUrlBuilder.java
+++ b/openid-connect-client/src/test/java/org/mitre/openid/connect/client/service/impl/TestSignedAuthRequestUrlBuilder.java
@@ -18,52 +18,127 @@ package org.mitre.openid.connect.client.service.impl;
 
 import static org.junit.Assert.*;
 
+import java.net.URISyntaxException;
+import java.security.NoSuchAlgorithmException;
+import java.security.spec.InvalidKeySpecException;
+import java.util.Map;
+
+import org.apache.http.client.utils.URIBuilder;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.mitre.jwt.signer.service.JwtSigningAndValidationService;
+import org.mitre.jwt.signer.service.impl.DefaultJwtSigningAndValidationService;
 import org.mitre.oauth2.model.RegisteredClient;
 import org.mitre.openid.connect.config.ServerConfiguration;
-import org.mockito.InjectMocks;
-import org.mockito.Mock;
 import org.mockito.Mockito;
 import org.mockito.runners.MockitoJUnitRunner;
 
+import com.google.common.base.Joiner;
+import com.google.common.collect.Maps;
 import com.google.common.collect.Sets;
+import com.nimbusds.jose.Algorithm;
+import com.nimbusds.jose.JWSHeader;
+import com.nimbusds.jose.jwk.JWK;
+import com.nimbusds.jose.jwk.RSAKey;
+import com.nimbusds.jose.jwk.Use;
+import com.nimbusds.jose.util.Base64URL;
+import com.nimbusds.jwt.JWTClaimsSet;
+import com.nimbusds.jwt.SignedJWT;
 
 /**
  * @author wkim
- *
+ * 
  */
-@RunWith(MockitoJUnitRunner.class)
 public class TestSignedAuthRequestUrlBuilder {
-	
+
 	// Test fixture:
 	ServerConfiguration serverConfig;
 	RegisteredClient clientConfig;
-	
-	@Mock
-	private JwtSigningAndValidationService signingAndValidationService;
-	
-	@InjectMocks
+
+	// RSA key properties:
+	// {@link package com.nimbusds.jose.jwk#RSAKey}
+	private String n = "0vx7agoebGcQSuuPiLJXZptN9nndrQmbXEps2aiAFbWhM78LhWx4cbbfAAtVT86zw" + 
+					"u1RK7aPFFxuhDR1L6tSoc_BJECPebWKRXjBZCiFV4n3oknjhMstn64tZ_2W-5JsGY4Hc" + 
+					"5n9yBXArwl93lqt7_RN5w6Cf0h4QyQ5v-65YGjQR0_FDW2QvzqY368QQMicAtaSqzs8K" + 
+					"JZgnYb9c7d0zgdAZHzu6qMQvRL5hajrn1n91CbOpbISD08qNLyrdkt-bFTWhAI4vMQFh" + 
+					"6WeZu0fM4lFd2NcRwr3XPksINHaQ-G_xBniIqbw0Ls1jF44-csFCur-kEgU8awapJzKnqDKgw";
+	private String e = "AQAB";
+	private String d = "X4cTteJY_gn4FYPsXB8rdXix5vwsg1FLN5E3EaG6RJoVH-HLLKD9M7dx5oo7GURknc" +
+					"hnrRweUkC7hT5fJLM0WbFAKNLWY2vv7B6NqXSzUvxT0_YSfqijwp3RTzlBaCxWp4doFk5" +
+					"N2o8Gy_nHNKroADIkJ46pRUohsXywbReAdYaMwFs9tv8d_cPVY3i07a3t8MN6TNwm0dSa" +
+					"wm9v47UiCl3Sk5ZiG7xojPLu4sbg1U2jx4IBTNBznbJSzFHK66jT8bgkuqsk0GjskDJk1" +
+					"9Z4qwjwbsnn4j2WBii3RL-Us2lGVkY8fkFzme1z0HbIkfz0Y6mqnOYtqc0X4jfcKoAC8Q";
+	private String alg = "RS256";
+	private String kid = "2011-04-29";
+
+	private DefaultJwtSigningAndValidationService signingAndValidationService;
+
 	private SignedAuthRequestUrlBuilder urlBuilder = new SignedAuthRequestUrlBuilder();
 
 	@Before
-	public void prepare() {
-		
-		Mockito.reset(signingAndValidationService);
-		
+	public void prepare() throws NoSuchAlgorithmException, InvalidKeySpecException {
+
+		RSAKey key = new RSAKey(new Base64URL(n), new Base64URL(e), new Base64URL(d), Use.SIGNATURE, new Algorithm(alg), kid);
+		Map<String, JWK> keys = Maps.newHashMap();
+		keys.put("client", key);
+
+		signingAndValidationService = new DefaultJwtSigningAndValidationService(keys);
+		signingAndValidationService.setDefaultSignerKeyId("client");
+		signingAndValidationService.setDefaultSigningAlgorithmName(alg);
+
+		urlBuilder.setSigningAndValidationService(signingAndValidationService);
+
 		serverConfig = Mockito.mock(ServerConfiguration.class);
 		Mockito.when(serverConfig.getAuthorizationEndpointUri()).thenReturn("https://server.example.com/authorize");
-		
+
 		clientConfig = Mockito.mock(RegisteredClient.class);
 		Mockito.when(clientConfig.getClientId()).thenReturn("s6BhdRkqt3");
 		Mockito.when(clientConfig.getScope()).thenReturn(Sets.newHashSet("openid", "profile"));
 	}
-	
-	@Test //TODO
-	public void test() {
-		assertTrue("Not yet implemented", true);
+
+	@Test
+	public void buildAuthRequestUrl() {
+
+		String redirectUri = "https://client.example.org/";
+		String nonce = "34fasf3ds";
+		String state = "af0ifjsldkj";
+
+		JWTClaimsSet claims = new JWTClaimsSet();
+
+		//set parameters to JwtClaims
+		claims.setCustomClaim("response_type", "code");
+		claims.setCustomClaim("client_id", clientConfig.getClientId());
+		claims.setCustomClaim("scope", Joiner.on(" ").join(clientConfig.getScope()));
+
+		// build our redirect URI
+		claims.setCustomClaim("redirect_uri", redirectUri);
+
+		// this comes back in the id token
+		claims.setCustomClaim("nonce", nonce);
+
+		// this comes back in the auth request return
+		claims.setCustomClaim("state", state);
+
+		SignedJWT jwt = new SignedJWT(new JWSHeader(signingAndValidationService.getDefaultSigningAlgorithm()), claims);
+
+		signingAndValidationService.signJwt(jwt);
+
+		String expected = null;
+		
+		try {
+			
+			URIBuilder uriBuilder = new URIBuilder(serverConfig.getAuthorizationEndpointUri());
+			uriBuilder.addParameter("request", jwt.serialize());
+
+			expected = uriBuilder.build().toString();
+			
+		} catch (URISyntaxException e) {
+			fail("URISyntaxException occurred.");
+		}
+		
+		String actual = urlBuilder.buildAuthRequestUrl(serverConfig, clientConfig, redirectUri, nonce, state);
+		
+		assertEquals(expected, actual);
 	}
 
 }