JAL-2759 Add missing hiddenColumns empty check

[jalview.git] / test / jalview / datamodel / HiddenColumnsTest.java

diff --git a/test/jalview/datamodel/HiddenColumnsTest.java b/test/jalview/datamodel/HiddenColumnsTest.java
index e4aa8e2..38536c8 100644 (file)
--- a/test/jalview/datamodel/HiddenColumnsTest.java
+++ b/test/jalview/datamodel/HiddenColumnsTest.java
@@ -456,6 +456,8 @@ public class HiddenColumnsTest
   public void testIsVisible()
   {
     HiddenColumns cs = new HiddenColumns();
+    assertTrue(cs.isVisible(5));
+
     cs.hideColumns(2, 4);
     cs.hideColumns(6, 7);
     assertTrue(cs.isVisible(0));