X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=test%2Fjalview%2Fgui%2FValidColumnSelectionTest.java;fp=test%2Fjalview%2Fgui%2FValidColumnSelectionTest.java;h=c65f23687d61e1e40622629a7abf6ef23e7f64eb;hb=6fb07f0a97888d9590b4fa7b9993955e30080782;hp=81d35f2c6b11d4ac9be042e3a55b1f8022bc13ed;hpb=15fd718cc699f84383fa4058f8981fc244d20722;p=jalview.git

diff --git a/test/jalview/gui/ValidColumnSelectionTest.java b/test/jalview/gui/ValidColumnSelectionTest.java
index 81d35f2..c65f236 100644
--- a/test/jalview/gui/ValidColumnSelectionTest.java
+++ b/test/jalview/gui/ValidColumnSelectionTest.java
@@ -1,5 +1,15 @@
 package jalview.gui;
 
+import static org.testng.Assert.assertTrue;
+
+import jalview.datamodel.Alignment;
+import jalview.datamodel.AlignmentI;
+import jalview.datamodel.Sequence;
+import jalview.datamodel.SequenceGroup;
+import jalview.datamodel.SequenceI;
+
+import java.awt.event.MouseEvent;
+
 import org.testng.annotations.BeforeClass;
 import org.testng.annotations.Test;
 
@@ -13,8 +23,31 @@ public class ValidColumnSelectionTest
   }
 
   @Test(groups = "Functional")
-  public void testColumnSelection()
+  public void testPreventNegativeStartColumn()
   {
+    SequenceI seq1 = new Sequence("Seq1", "MATRESS");
+    SequenceI seq2 = new Sequence("Seq2", "MADNESS");
+    AlignmentI al = new Alignment(new SequenceI[] { seq1, seq2 });
+    
+    AlignFrame alignFrame = new AlignFrame(al, al.getWidth(),
+            al.getHeight());
+    ScalePanel scalePanel = new ScalePanel(
+            alignFrame.getViewport(), alignFrame.alignPanel
+    );
+    
+    MouseEvent mouse = new MouseEvent(
+            scalePanel, 0, 1, 0, 4, 0, 1, false
+    );
+    scalePanel.mousePressed(mouse);
+    scalePanel.mouseDragged(mouse);
+    mouse = new MouseEvent(scalePanel, 0, 1, 0, -30, 0, 1, false);
+    scalePanel.mouseReleased(mouse);
+
+    SequenceGroup sg = scalePanel.av.getSelectionGroup();
+    int startCol = sg.getStartRes();
+
+    assertTrue(startCol >= 0);
+
 
   }