X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=test%2Fjalview%2Fgui%2FValidColumnSelectionTest.java;fp=test%2Fjalview%2Fgui%2FValidColumnSelectionTest.java;h=217fcdd788f5a3ca67aeac0ea5db591435160b13;hb=ae668892295ec84b52d9298be5e5f7f223dd5437;hp=c65f23687d61e1e40622629a7abf6ef23e7f64eb;hpb=6fb07f0a97888d9590b4fa7b9993955e30080782;p=jalview.git

diff --git a/test/jalview/gui/ValidColumnSelectionTest.java b/test/jalview/gui/ValidColumnSelectionTest.java
index c65f236..217fcdd 100644
--- a/test/jalview/gui/ValidColumnSelectionTest.java
+++ b/test/jalview/gui/ValidColumnSelectionTest.java
@@ -40,7 +40,11 @@ public class ValidColumnSelectionTest
     );
     scalePanel.mousePressed(mouse);
     scalePanel.mouseDragged(mouse);
+
+    // simulate dragging selection leftwards beyond the sequences giving
+    // negative X
     mouse = new MouseEvent(scalePanel, 0, 1, 0, -30, 0, 1, false);
+
     scalePanel.mouseReleased(mouse);
 
     SequenceGroup sg = scalePanel.av.getSelectionGroup();