X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=test%2Fjalview%2Futil%2FMappingUtilsTest.java;h=52268195fedb732de2c63157e5b49de6b637e467;hb=5fba3a87f8eaa121a8139f37e6822c15283e1a2c;hp=d0ec3e83898476032815524bc73a127a7287fdda;hpb=e502a7571bf01a0354ce8205948dd7a3cda1603b;p=jalview.git

diff --git a/test/jalview/util/MappingUtilsTest.java b/test/jalview/util/MappingUtilsTest.java
index d0ec3e8..5226819 100644
--- a/test/jalview/util/MappingUtilsTest.java
+++ b/test/jalview/util/MappingUtilsTest.java
@@ -1149,4 +1149,49 @@ public class MappingUtilsTest
     assertEquals("[12, 11, 8, 4]", Arrays.toString(ranges));
   }
 
+  @Test(groups = "Functional")
+  public void testRemoveEndPositions()
+  {
+    List<int[]> ranges = new ArrayList<>();
+
+    /*
+     * case 1: truncate last range
+     */
+    ranges.add(new int[] { 1, 10 });
+    ranges.add(new int[] { 20, 30 });
+    MappingUtils.removeEndPositions(5, ranges);
+    assertEquals(2, ranges.size());
+    assertEquals(25, ranges.get(1)[1]);
+
+    /*
+     * case 2: remove last range
+     */
+    ranges.clear();
+    ranges.add(new int[] { 1, 10 });
+    ranges.add(new int[] { 20, 22 });
+    MappingUtils.removeEndPositions(3, ranges);
+    assertEquals(1, ranges.size());
+    assertEquals(10, ranges.get(0)[1]);
+
+    /*
+     * case 3: truncate penultimate range
+     */
+    ranges.clear();
+    ranges.add(new int[] { 1, 10 });
+    ranges.add(new int[] { 20, 21 });
+    MappingUtils.removeEndPositions(3, ranges);
+    assertEquals(1, ranges.size());
+    assertEquals(9, ranges.get(0)[1]);
+
+    /*
+     * case 4: remove last two ranges
+     */
+    ranges.clear();
+    ranges.add(new int[] { 1, 10 });
+    ranges.add(new int[] { 20, 20 });
+    ranges.add(new int[] { 30, 30 });
+    MappingUtils.removeEndPositions(3, ranges);
+    assertEquals(1, ranges.size());
+    assertEquals(9, ranges.get(0)[1]);
+  }
 }