1 files changed, 27 insertions, 0 deletions
diff --git a/spec/ruby/library/matrix/inspect_spec.rb b/spec/ruby/library/matrix/inspect_spec.rb
new file mode 100644
index 0000000000..bf623e1a85
--- /dev/null
+++ b/spec/ruby/library/matrix/inspect_spec.rb
@@ -0,0 +1,27 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/classes', __FILE__)
+require 'matrix'
+
+describe "Matrix#inspect" do
+
+  it "returns a stringified representation of the Matrix" do
+    Matrix[ [1,2], [2,1] ].inspect.should == "Matrix[[1, 2], [2, 1]]"
+  end
+
+  it "returns 'Matrix.empty(...)' for empty matrices" do
+    Matrix[ [], [], [] ].inspect.should == "Matrix.empty(3, 0)"
+    Matrix.columns([ [], [], [] ]).inspect.should == "Matrix.empty(0, 3)"
+  end
+
+  it "calls inspect on its contents" do
+    obj = mock("some_value")
+    obj.should_receive(:inspect).and_return("some_value")
+    Matrix[ [1, 2], [3, obj] ].inspect.should == "Matrix[[1, 2], [3, some_value]]"
+  end
+
+  describe "for a subclass of Matrix" do
+    it "returns a string using the subclass' name" do
+      MatrixSub.ins.inspect.should == "MatrixSub[[1, 0], [0, 1]]"
+    end
+  end
+end