Improve coverage for Issue #80 (#91)

* Improve coverage for Issue #80

* Minor additions to improve coverage slightly.  Still unable to test for empty .arc.gz.

src/test/java/io/archivesunleashed/mapreduce/WacArcInputFormatTest.java

@@ -42,7 +42,8 @@ public final void testInputFormat() throws Exception {
         "dns:www.archive.org",
         "http://www.archive.org/robots.txt",
         "http://www.archive.org/",
-        "http://www.archive.org/index.php" };
+        "http://www.archive.org/index.php"
+      };
 
     String arcFile = Resources.getResource("arc/example.arc.gz").getPath();
 
@@ -64,16 +65,17 @@ public final void testInputFormat() throws Exception {
 
     int cnt = 0;
     final int cntTest = 300;
-
+    float getProg = reader.getProgress();
+    assertEquals(getProg, 0.0f, 0);
     while (reader.nextKeyValue()) {
       ARCRecord record = reader.getCurrentValue().getRecord();
       ARCRecordMetaData metadata = record.getMetaData();
-
       if (cnt < urls.length) {
         assertEquals(urls[cnt], metadata.getUrl());
       }
       cnt++;
     }
     assertEquals(cntTest, cnt);
+    assertEquals(reader.getProgress(), 0.0f, 0);
   }
 }