1 files changed, 19 insertions, 0 deletions
diff --git a/spec/ruby/library/matrix/transpose_spec.rb b/spec/ruby/library/matrix/transpose_spec.rb
new file mode 100644
index 0000000000..0b24ab32a7
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+++ b/spec/ruby/library/matrix/transpose_spec.rb
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+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+
+describe "Matrix#transpose" do
+  it "returns a transposed matrix" do
+    Matrix[[1, 2], [3, 4], [5, 6]].transpose.should == Matrix[[1, 3, 5], [2, 4, 6]]
+  end
+
+  it "can transpose empty matrices" do
+    m = Matrix[[], [], []]
+    m.transpose.transpose.should == m
+  end
+
+  describe "for a subclass of Matrix" do
+    it "returns an instance of that subclass" do
+      MatrixSub.ins.transpose.should.instance_of?(MatrixSub)
+    end
+  end
+end