diff --git a/testdata/ruby/dbMatrix.rb b/testdata/ruby/dbMatrix.rb
index 3defd7e78..20ebc2546 100644
--- a/testdata/ruby/dbMatrix.rb
+++ b/testdata/ruby/dbMatrix.rb
@@ -255,6 +255,7 @@ class DBMatrix_TestClass < TestBase
     assert_equal((m * RBA::Edge::new(RBA::Point::new(-5, -10), RBA::Point::new(10, 20))).to_s, "(-10,-18;20,35)")
     assert_equal(RBA::Region::new(RBA::Box::new(-5, -10, 10, 20)).transformed(m).to_s, "(5,-25;-10,-18;5,43;20,35)")
     assert_equal(RBA::Edges::new(RBA::Edge::new(RBA::Point::new(-5, -10), RBA::Point::new(10, 20))).transformed(m).to_s, "(-10,-18;20,35)")
+    assert_equal(RBA::EdgePairs::new(RBA::EdgePair::new(RBA::Edge::new(RBA::Point::new(-5, -10), RBA::Point::new(10, 20)), RBA::Edge::new(RBA::Point::new(-6, -10), RBA::Point::new(11, 20)))).transformed(m).to_s, "(-10,-18;20,35)/(-11,-17;21,35)")
 
     m = RBA::Matrix2d::new(1.0, 0.5, -0.5, 2.0)
     assert_equal((m * RBA::DPoint::new(10, 20)).to_s, "20,35")
@@ -273,6 +274,7 @@ class DBMatrix_TestClass < TestBase
     assert_equal((m * RBA::Edge::new(RBA::Point::new(-5, -10), RBA::Point::new(10, 20))).to_s, "(-9,-18;21,35)")
     assert_equal(RBA::Region::new(RBA::Box::new(-5, -10, 10, 20)).transformed(m).to_s, "(6,-25;-9,-18;6,43;21,35)")
     assert_equal(RBA::Edges::new(RBA::Edge::new(RBA::Point::new(-5, -10), RBA::Point::new(10, 20))).transformed(m).to_s, "(-9,-18;21,35)")
+    assert_equal(RBA::EdgePairs::new(RBA::EdgePair::new(RBA::Edge::new(RBA::Point::new(-5, -10), RBA::Point::new(10, 20)), RBA::Edge::new(RBA::Point::new(-6, -10), RBA::Point::new(11, 20)))).transformed(m).to_s, "(-9,-18;21,35)/(-10,-17;22,35)")
 
     m = RBA::Matrix3d::new(1.0, 0.5, 1.0, -0.5, 2.0, 0.0, 0.0, 0.0, 1.0)
     assert_equal((m * RBA::DPoint::new(10, 20)).to_s, "21,35")