X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=test%2Fjalview%2Fmath%2FMatrixTest.java;h=6e9c0f1a848fd448129faf6a4ea8e90daaec0e65;hb=e8b765f24913520d23f4526d815587853094b3f4;hp=97ded5a345ff65da86ef602242995feb85a4169d;hpb=37651a9d177de05ff938276071c16ba95ac44c73;p=jalview.git

diff --git a/test/jalview/math/MatrixTest.java b/test/jalview/math/MatrixTest.java
index 97ded5a..6e9c0f1 100644
--- a/test/jalview/math/MatrixTest.java
+++ b/test/jalview/math/MatrixTest.java
@@ -188,9 +188,23 @@ public class MatrixTest
       }
     }
     Matrix m1 = new Matrix(in);
+
     Matrix m2 = (Matrix) m1.copy();
     assertNotSame(m1, m2);
     assertTrue(matrixEquals(m1, m2));
+    assertNull(m2.d);
+    assertNull(m2.e);
+
+    /*
+     * now add d and e vectors and recopy
+     */
+    m1.d = Arrays.copyOf(in[2], in[2].length);
+    m1.e = Arrays.copyOf(in[4], in[4].length);
+    m2 = (Matrix) m1.copy();
+    assertNotSame(m2.d, m1.d);
+    assertNotSame(m2.e, m1.e);
+    assertEquals(m2.d, m1.d);
+    assertEquals(m2.e, m1.e);
   }
 
   /**