X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=test%2Fjalview%2Futil%2FMappingUtilsTest.java;fp=test%2Fjalview%2Futil%2FMappingUtilsTest.java;h=d4cf98a74a07a99d860519988ed3c388077f1ae0;hb=06de78be50c3934158fa1d35ec92ad86b54e959f;hp=87070d73a7605b208be2f8e0f7eadaf6996265f4;hpb=705d1c84c9a03bb0378593e4d8d8a90c8a11f831;p=jalview.git

diff --git a/test/jalview/util/MappingUtilsTest.java b/test/jalview/util/MappingUtilsTest.java
index 87070d7..d4cf98a 100644
--- a/test/jalview/util/MappingUtilsTest.java
+++ b/test/jalview/util/MappingUtilsTest.java
@@ -1238,4 +1238,49 @@ public class MappingUtilsTest
     assertFalse(MappingUtils.rangeContains(null, new int[] { 1, 10 }));
   }
 
+  @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]);
+  }
 }