added 'debug' method to service builder

src/test/java/org/scribe/builder/ServiceBuilderTest.java

@@ -63,8 +63,7 @@ public class ServiceBuilderTest
   public static class ApiMock implements Api
   {
     public static OAuthConfig config;
-    
-    @Override
+
     public OAuthService createService(OAuthConfig config)
     {
       ApiMock.config = config;

src/test/java/org/scribe/model/OAuthConfigTest.java

@@ -1,28 +0,0 @@
-package org.scribe.model;
-
-import static org.junit.Assert.*;
-
-import org.junit.*;
-
-public class OAuthConfigTest
-{
-
-  @Test
-  public void shouldReturnDefaultValuesIfNotSet()
-  {
-    OAuthConfig config = new OAuthConfig("key", "secret");
-    assertEquals(OAuthConstants.OUT_OF_BAND, config.getCallback());
-    assertEquals(SignatureType.Header, config.getSignatureType());
-    assertFalse(config.hasScope());
-  }
-
-  @Test
-  public void shouldOverrideDefaultsIfSet()
-  {
-    OAuthConfig config = new OAuthConfig("key", "secret", "http://callback", SignatureType.Header, "scope");
-    assertEquals("http://callback", config.getCallback());
-    assertEquals("key", config.getApiKey());
-    assertEquals("secret", config.getApiSecret());
-  }
-
-}

src/test/java/org/scribe/utils/MapUtilsTest.java

@@ -0,0 +1,35 @@
+package org.scribe.utils;
+
+import java.util.*;
+import org.junit.*;
+
+/**
+ * @author: Pablo Fernandez
+ */
+public class MapUtilsTest
+{
+
+  @Test
+  public void shouldPrettyPrintMap()
+  {
+    Map<Integer, String> map = new HashMap<Integer, String>();
+    map.put(1, "one");
+    map.put(2, "two");
+    map.put(3, "three");
+    map.put(4, "four");
+    Assert.assertEquals("{ 1 -> one , 2 -> two , 3 -> three , 4 -> four }", MapUtils.toString(map));
+  }
+
+  @Test
+  public void shouldHandleEmptyMap()
+  {
+    Map<Integer, String> map = new HashMap<Integer, String>();
+    Assert.assertEquals("{}", MapUtils.toString(map));
+  }
+
+  @Test
+  public void shouldHandleNullInputs()
+  {
+    Assert.assertEquals("", MapUtils.toString(null));
+  }
+}