2 files changed, 8 insertions, 0 deletions
diff --git a/test/matrix/test_matrix.rb b/test/matrix/test_matrix.rb
index 425ec25a52..0831ac6362 100644
--- a/test/matrix/test_matrix.rb
+++ b/test/matrix/test_matrix.rb
@@ -218,6 +218,10 @@ class TestMatrix < Test::Unit::TestCase
     assert_equal([[1], [1]], m2.to_a)
   end
 
+  def test_to_matrix
+    assert @m1.equal? @m1.to_matrix
+  end
+
   def test_columns
     assert_equal(@m1, Matrix.columns([[1, 4], [2, 5], [3, 6]]))
   end
diff --git a/test/matrix/test_vector.rb b/test/matrix/test_vector.rb
index 687706b5e9..52785120b1 100644
--- a/test/matrix/test_vector.rb
+++ b/test/matrix/test_vector.rb
@@ -177,6 +177,10 @@ class TestVector < Test::Unit::TestCase
     assert_equal("Vector[1, 2, 3]", @v1.to_s)
   end
 
+  def test_to_matrix
+    assert_equal Matrix[[1], [2], [3]], @v1.to_matrix
+  end
+
   def test_inspect
     assert_equal("Vector[1, 2, 3]", @v1.inspect)
   end