#1382 Repo.Smart exists() + IT case

src/main/java/com/jcabi/github/Existence.java

@@ -40,8 +40,9 @@
  * @author Mihai Andronache ([email protected])
  * @version $Id$
  * @since 0.38
- * @todo #1379:30min Use this class to implement Smart.exists() method for all
- *  Github entities we have (Repo, Issue, User etc).
+ * @todo #1382:30min Use this class to implement Smart.exists() method for all
+ *  Github entities we have (Comment, Issue, User etc). Maybe we can make
+ *  JsonReadable abstract and have method exists() there.
  */
 @Immutable
 @Loggable(Loggable.DEBUG)

src/main/java/com/jcabi/github/Repo.java

@@ -214,6 +214,16 @@ public Smart(
             this.repo = rep;
             this.jsn = new SmartJson(rep);
         }
+
+        /**
+         * Does this Repo actually exist in Github?
+         * @return True if it exists, false otherwise.
+         * @throws IOException If there is any I/O problem.
+         */
+        public boolean exists() throws IOException {
+            return new Existence(this.repo).check();
+        }
+
         /**
          * Does it have a description.
          * @return TRUE if description is present

src/test/java/com/jcabi/github/RtRepoITCase.java

@@ -128,6 +128,17 @@ public void iteratesEvents() throws Exception {
         );
     }
 
+    /**
+     * RtRepo can tell if it exists.
+     * @throws Exception If something goes wrong.
+     */
+    @Test
+    public void exists() throws Exception {
+        MatcherAssert.assertThat(
+            new Repo.Smart(repo).exists(), Matchers.is(Boolean.TRUE)
+        );
+    }
+
     /**
      * RtRepo can fetch its commits.
      * @throws Exception If some problem inside