1 files changed, 26 insertions, 0 deletions
diff --git a/spec/ruby/library/matrix/shared/collect.rb b/spec/ruby/library/matrix/shared/collect.rb
new file mode 100644
index 0000000000..3a4dbe3a36
--- /dev/null
+++ b/spec/ruby/library/matrix/shared/collect.rb
@@ -0,0 +1,26 @@
+require_relative '../fixtures/classes'
+require 'matrix'
+
+describe :collect, shared: true do
+  before :all do
+    @m = Matrix[ [1, 2], [1, 2] ]
+  end
+
+  it "returns an instance of Matrix" do
+    @m.send(@method){|n| n * 2 }.should.is_a?(Matrix)
+  end
+
+  it "returns a Matrix where each element is the result of the block" do
+    @m.send(@method) { |n| n * 2 }.should == Matrix[ [2, 4], [2, 4] ]
+  end
+
+  it "returns an enumerator if no block is given" do
+    @m.send(@method).should.instance_of?(Enumerator)
+  end
+
+  describe "for a subclass of Matrix" do
+    it "returns an instance of that subclass" do
+      MatrixSub.ins.send(@method){1}.should.instance_of?(MatrixSub)
+    end
+  end
+end