X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=test%2Fjalview%2Futil%2FMapListTest.java;h=d2db258583b1cf946c01c5a0d47eacdba93f948a;hb=9bcdd1d38988de350482acfd1a21628f73cdbd6d;hp=f3395caebacb2d1b012b6f86c648a947f8e80bd6;hpb=a738a37240b13fa22aa7a3333c0a58c71759ab22;p=jalview.git

diff --git a/test/jalview/util/MapListTest.java b/test/jalview/util/MapListTest.java
index f3395ca..d2db258 100644
--- a/test/jalview/util/MapListTest.java
+++ b/test/jalview/util/MapListTest.java
@@ -931,5 +931,13 @@ public class MapListTest
     toRanges = compound.getToRanges();
     assertEquals(toRanges.size(), 1);
     assertArrayEquals(new int[] { 47, 50, 71, 126 }, toRanges.get(0));
+
+    /*
+     * method returns null if not all regions are mapped through
+     */
+    ml1 = new MapList(new int[] { 1, 50 }, new int[] { 101, 150 }, 1, 1);
+    ml2 = new MapList(new int[] { 131, 180 }, new int[] { 201, 250 }, 1, 3);
+    compound = ml1.traverse(ml2);
+    assertNull(compound);
   }
 }