From: Jim Procter <jprocter@issues.jalview.org>
Date: Wed, 9 Jun 2021 15:35:11 +0000 (+0100)
Subject: JAL-3840 failing test - show that addGaps overflows
X-Git-Tag: Release_2_11_1_5~7^2~2
X-Git-Url: http://source.jalview.org/gitweb/?a=commitdiff_plain;h=ee9d0c3d15494dc2dd73fedf44994b689847aa9b;p=jalview.git

JAL-3840 failing test - show that addGaps overflows
---

diff --git a/src/jalview/datamodel/ResidueCount.java b/src/jalview/datamodel/ResidueCount.java
index 74eb887..b21dd77 100644
--- a/src/jalview/datamodel/ResidueCount.java
+++ b/src/jalview/datamodel/ResidueCount.java
@@ -70,7 +70,7 @@ public class ResidueCount
    */
   private static final String AAS = "ACDEFGHIKLMNPQRSTUVWXY";
 
-  private static final int GAP_COUNT = 0;
+  static final int GAP_COUNT = 0;
 
   /*
    * fast lookup tables holding the index into our count
diff --git a/test/jalview/datamodel/ResidueCountTest.java b/test/jalview/datamodel/ResidueCountTest.java
index 4eb6dbf..e90e1a9 100644
--- a/test/jalview/datamodel/ResidueCountTest.java
+++ b/test/jalview/datamodel/ResidueCountTest.java
@@ -92,6 +92,18 @@ public class ResidueCountTest
     assertEquals(rc.getCount('.'), 4);
     assertFalse(rc.isUsingOtherData());
     assertFalse(rc.isCountingInts());
+    
+    rc.set(ResidueCount.GAP_COUNT, Short.MAX_VALUE-2);
+    assertEquals(rc.getGapCount(), Short.MAX_VALUE-2);
+    assertFalse(rc.isCountingInts());
+    rc.addGap();
+    assertEquals(rc.getGapCount(), Short.MAX_VALUE-1);
+    assertFalse(rc.isCountingInts());
+    rc.addGap();
+    assertEquals(rc.getGapCount(), Short.MAX_VALUE);
+    rc.addGap();
+    assertTrue(rc.isCountingInts());
+    assertEquals(rc.getGapCount(), Short.MAX_VALUE+1);
   }
 
   @Test(groups = "Functional")