1 files changed, 19 insertions, 0 deletions
diff --git a/spec/ruby/library/matrix/shared/transpose.rb b/spec/ruby/library/matrix/shared/transpose.rb
new file mode 100644
index 0000000000..dba6c71041
--- /dev/null
+++ b/spec/ruby/library/matrix/shared/transpose.rb
@@ -0,0 +1,19 @@
+require File.expand_path('../../fixtures/classes', __FILE__)
+require 'matrix'
+
+describe :matrix_transpose, shared: true do
+  it "returns a transposed matrix" do
+    Matrix[[1, 2], [3, 4], [5, 6]].send(@method).should == Matrix[[1, 3, 5], [2, 4, 6]]
+  end
+
+  it "can transpose empty matrices" do
+    m = Matrix[[], [], []]
+    m.send(@method).send(@method).should == m
+  end
+
+  describe "for a subclass of Matrix" do
+    it "returns an instance of that subclass" do
+      MatrixSub.ins.send(@method).should be_an_instance_of(MatrixSub)
+    end
+  end
+end