2 files changed, 18 insertions, 0 deletions
diff --git a/test/matrix/test_matrix.rb b/test/matrix/test_matrix.rb
index 2d99cead42..79ae9b965b 100644
--- a/test/matrix/test_matrix.rb
+++ b/test/matrix/test_matrix.rb
@@ -62,6 +62,15 @@ class TestMatrix < Test::Unit::TestCase
     assert_equal @m1.hash, @m3.hash
   end
 
+  def test_uplus
+    assert_equal(@m1, +@m1)
+  end
+
+  def test_negate
+    assert_equal(Matrix[[-1, -2, -3], [-4, -5, -6]], -@m1)
+    assert_equal(@m1, -(-@m1))
+  end
+
   def test_rank
     [
       [[0]],
diff --git a/test/matrix/test_vector.rb b/test/matrix/test_vector.rb
index 465108dcec..fa29496451 100644
--- a/test/matrix/test_vector.rb
+++ b/test/matrix/test_vector.rb
@@ -120,6 +120,15 @@ class TestVector < Test::Unit::TestCase
     assert_equal(0, Vector[1, 2, 3] - o)
   end
 
+  def test_uplus
+    assert_equal(@v1, +@v1)
+  end
+
+  def test_negate
+    assert_equal(Vector[-1, -2, -3], -@v1)
+    assert_equal(@v1, -(-@v1))
+  end
+
   def test_inner_product
     assert_equal(1+4+9, @v1.inner_product(@v1))
   end