Added jUnit test to improve coverage

src/main/java/org/jinstagram/realtime/SubscriptionUtil.java

@@ -41,7 +41,6 @@ public static SubscriptionResponseObject[] getSubscriptionResponseData(String js
 	 * @return VerificationResult a class that represent result of the signature verification
 	 * @throws InstagramException
 	 */
-
 	public static VerificationResult verifySubscriptionPostRequestSignature(String clientSecret, byte[] rawJsonData,
 			String xHubSignature) throws InstagramException {
 		SecretKeySpec keySpec;

src/test/java/org/jinstagram/auth/InstagramApiTest.java

@@ -0,0 +1,123 @@
+package org.jinstagram.auth;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import org.jinstagram.auth.model.OAuthConfig;
+import org.jinstagram.auth.oauth.InstagramService;
+import org.jinstagram.http.Verbs;
+import org.junit.Test;
+
+/**
+ * The class <code>InstagramApiTest</code> contains tests for the class
+ * <code>{@link InstagramApi}</code>.
+ * 
+ */
+public class InstagramApiTest {
+	/**
+	 * Run the InstagramService createService(OAuthConfig) method test.
+	 *
+	 * @throws Exception
+	 *
+	 * 
+	 */
+	@Test
+	public void testCreateService_1() throws Exception {
+		InstagramApi fixture = new InstagramApi();
+		OAuthConfig config = new OAuthConfig("", "");
+
+		InstagramService result = fixture.createService(config);
+
+		// add additional test code here
+		assertNotNull(result);
+		assertEquals("1.0", result.getVersion());
+	}
+
+	/**
+	 * Run the String getAccessTokenEndpoint() method test.
+	 *
+	 * @throws Exception
+	 *
+	 * 
+	 */
+	@Test
+	public void testGetAccessTokenEndpoint_1() throws Exception {
+		InstagramApi fixture = new InstagramApi();
+
+		String result = fixture.getAccessTokenEndpoint();
+
+		// add additional test code here
+		assertEquals("https://api.instagram.com/oauth/access_token", result);
+	}
+
+	/**
+	 * Run the AccessTokenExtractor getAccessTokenExtractor() method test.
+	 *
+	 * @throws Exception
+	 *
+	 * 
+	 */
+	@Test
+	public void testGetAccessTokenExtractor_1() throws Exception {
+		InstagramApi fixture = new InstagramApi();
+
+		AccessTokenExtractor result = fixture.getAccessTokenExtractor();
+
+		// add additional test code here
+		assertNotNull(result);
+	}
+
+	/**
+	 * Run the Verbs getAccessTokenVerb() method test.
+	 *
+	 * @throws Exception
+	 *
+	 * 
+	 */
+	@Test
+	public void testGetAccessTokenVerb_1() throws Exception {
+		InstagramApi fixture = new InstagramApi();
+
+		Verbs result = fixture.getAccessTokenVerb();
+
+		// add additional test code here
+		assertNotNull(result);
+		assertEquals("POST", result.name());
+		assertEquals("POST", result.toString());
+		assertEquals(1, result.ordinal());
+	}
+
+	/**
+	 * Run the String getAuthorizationUrl(OAuthConfig) method test.
+	 *
+	 * @throws Exception
+	 *
+	 * 
+	 */
+	@Test(expected = IllegalArgumentException.class)
+	public void testGetAuthorizationUrl_1() throws Exception {
+		InstagramApi fixture = new InstagramApi();
+		OAuthConfig config = new OAuthConfig("", "", "", "", "");
+
+		String result = fixture.getAuthorizationUrl(config);
+
+		assertNotNull(result);
+	}
+
+	/**
+	 * Run the String getAuthorizationUrl(OAuthConfig) method test.
+	 *
+	 * @throws Exception
+	 *
+	 * 
+	 */
+	@Test(expected = IllegalArgumentException.class)
+	public void testGetAuthorizationUrl_2() throws Exception {
+		InstagramApi fixture = new InstagramApi();
+		OAuthConfig config = new OAuthConfig("", "", "", "", "");
+
+		String result = fixture.getAuthorizationUrl(config);
+		assertNotNull(result);
+	}
+
+}

src/test/java/org/jinstagram/auth/InstagramAuthServiceTest.java

@@ -0,0 +1,221 @@
+package org.jinstagram.auth;
+
+import static org.junit.Assert.assertNotNull;
+
+import java.net.InetSocketAddress;
+import java.net.Proxy;
+
+import org.jinstagram.auth.oauth.InstagramService;
+import org.junit.Test;
+
+/**
+ * The class <code>InstagramAuthServiceTest</code> contains tests for the class
+ * <code>{@link InstagramAuthService}</code>.
+ * 
+ */
+public class InstagramAuthServiceTest {
+	/**
+	 * Run the InstagramAuthService() constructor test.
+	 *
+	 * @throws Exception
+	 *
+	 * 
+	 */
+	@Test
+	public void testInstagramAuthService() throws Exception {
+
+		InstagramAuthService result = new InstagramAuthService();
+
+		// add additional test code here
+		assertNotNull(result);
+	}
+
+	/**
+	 * Run the InstagramAuthService apiKey(String) method test.
+	 *
+	 * @throws Exception
+	 *
+	 * 
+	 */
+	@Test(expected = IllegalArgumentException.class)
+	public void testApiKey() throws Exception {
+		InstagramAuthService fixture = new InstagramAuthService();
+		fixture.apiSecret("");
+		fixture.callback("");
+		fixture.scope("");
+		fixture.proxy(new Proxy(java.net.Proxy.Type.DIRECT, new InetSocketAddress(1)));
+		fixture.apiKey("");
+		fixture.display("");
+		String apiKey = "";
+
+		InstagramAuthService result = fixture.apiKey(apiKey);
+		assertNotNull(result);
+	}
+
+	/**
+	 * Run the InstagramAuthService apiSecret(String) method test.
+	 *
+	 * @throws Exception
+	 *
+	 * 
+	 */
+	@Test(expected = IllegalArgumentException.class)
+	public void testApiSecret() throws Exception {
+		InstagramAuthService fixture = new InstagramAuthService();
+		fixture.apiSecret("");
+		fixture.callback("");
+		fixture.scope("");
+		fixture.proxy(new Proxy(java.net.Proxy.Type.DIRECT, new InetSocketAddress(1)));
+		fixture.apiKey("");
+		fixture.display("");
+		String apiSecret = "";
+
+		InstagramAuthService result = fixture.apiSecret(apiSecret);
+
+		// add additional test code here
+		// An unexpected exception was thrown in user code while executing this
+		// test:
+		// java.lang.IllegalArgumentException: Invalid Api secret
+		// at org.jinstagram.utils.Preconditions.check(Preconditions.java:116)
+		// at
+		// org.jinstagram.utils.Preconditions.checkEmptyString(Preconditions.java:48)
+		// at
+		// org.jinstagram.auth.InstagramAuthService.apiSecret(InstagramAuthService.java:67)
+		assertNotNull(result);
+	}
+
+	/**
+	 * Run the InstagramService build() method test.
+	 *
+	 * @throws Exception
+	 *
+	 * 
+	 */
+	@Test(expected = IllegalArgumentException.class)
+	public void testBuild() throws Exception {
+		InstagramAuthService fixture = new InstagramAuthService();
+		fixture.apiSecret("");
+		fixture.callback("");
+		fixture.scope("");
+		fixture.proxy(new Proxy(java.net.Proxy.Type.DIRECT, new InetSocketAddress(1)));
+		fixture.apiKey("");
+		fixture.display("");
+
+		InstagramService result = fixture.build();
+
+		assertNotNull(result);
+	}
+
+	/**
+	 * Run the InstagramService build() method test.
+	 *
+	 * @throws Exception
+	 *
+	 * 
+	 */
+	@Test(expected = IllegalArgumentException.class)
+	public void testBuild_2() throws Exception {
+		InstagramAuthService fixture = new InstagramAuthService();
+		fixture.apiSecret("");
+		fixture.callback("");
+		fixture.scope("");
+		fixture.proxy((Proxy) null);
+		fixture.apiKey("");
+		fixture.display("");
+
+		InstagramService result = fixture.build();
+		assertNotNull(result);
+	}
+
+	/**
+	 * Run the InstagramAuthService callback(String) method test.
+	 *
+	 * @throws Exception
+	 *
+	 * 
+	 */
+	@Test(expected = IllegalArgumentException.class)
+	public void testCallback() throws Exception {
+		InstagramAuthService fixture = new InstagramAuthService();
+		fixture.apiSecret("");
+		fixture.callback("");
+		fixture.scope("");
+		fixture.proxy(new Proxy(java.net.Proxy.Type.DIRECT, new InetSocketAddress(1)));
+		fixture.apiKey("");
+		fixture.display("");
+		String callback = "";
+
+		InstagramAuthService result = fixture.callback(callback);
+		assertNotNull(result);
+	}
+
+	/**
+	 * Run the InstagramAuthService display(String) method test.
+	 *
+	 * @throws Exception
+	 *
+	 * 
+	 */
+	@Test(expected = IllegalArgumentException.class)
+	public void testDisplay() throws Exception {
+		InstagramAuthService fixture = new InstagramAuthService();
+		fixture.apiSecret("");
+		fixture.callback("");
+		fixture.scope("");
+		fixture.proxy(new Proxy(java.net.Proxy.Type.DIRECT, new InetSocketAddress(1)));
+		fixture.apiKey("");
+		fixture.display("");
+		String display = "";
+
+		InstagramAuthService result = fixture.display(display);
+
+		assertNotNull(result);
+	}
+
+	/**
+	 * Run the InstagramAuthService proxy(Proxy) method test.
+	 *
+	 * @throws Exception
+	 *
+	 * 
+	 */
+	@Test(expected = IllegalArgumentException.class)
+	public void testProxy() throws Exception {
+		InstagramAuthService fixture = new InstagramAuthService();
+		fixture.apiSecret("");
+		fixture.callback("");
+		fixture.scope("");
+		fixture.proxy(new Proxy(java.net.Proxy.Type.DIRECT, new InetSocketAddress(1)));
+		fixture.apiKey("");
+		fixture.display("");
+		Proxy requestProxy = new Proxy(java.net.Proxy.Type.DIRECT, new InetSocketAddress(1));
+
+		InstagramAuthService result = fixture.proxy(requestProxy);
+
+		assertNotNull(result);
+	}
+
+	/**
+	 * Run the InstagramAuthService scope(String) method test.
+	 *
+	 * @throws Exception
+	 *
+	 * 
+	 */
+	@Test(expected = IllegalArgumentException.class)
+	public void testScope() throws Exception {
+		InstagramAuthService fixture = new InstagramAuthService();
+		fixture.apiSecret("");
+		fixture.callback("");
+		fixture.scope("");
+		fixture.proxy(new Proxy(java.net.Proxy.Type.DIRECT, new InetSocketAddress(1)));
+		fixture.apiKey("");
+		fixture.display("");
+		String scope = "";
+
+		InstagramAuthService result = fixture.scope(scope);
+
+		assertNotNull(result);
+	}
+
+}