TestScheme at 100% coverage

git-svn-id: https://svn.apache.org/repos/asf/jakarta/httpcomponents/httpclient/trunk@550081 13f79535-47bb-0310-9956-ffa450edef68

module-client/src/test/java/org/apache/http/conn/TestScheme.java

@@ -265,6 +265,8 @@ public class TestScheme extends TestCase {
     public void testToString() {
         Scheme http = new Scheme
             ("http", PlainSocketFactory.getSocketFactory(), 80);
+        // test it twice, the result is cached
+        assertEquals("http:80", http.toString());
         assertEquals("http:80", http.toString());
     }