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Diffstat (limited to 'spec/ruby/shared/enumerator/new.rb')
-rw-r--r-- | spec/ruby/shared/enumerator/new.rb | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/spec/ruby/shared/enumerator/new.rb b/spec/ruby/shared/enumerator/new.rb new file mode 100644 index 0000000000..23ace99816 --- /dev/null +++ b/spec/ruby/shared/enumerator/new.rb @@ -0,0 +1,42 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +describe :enum_new, shared: true do + it "creates a new custom enumerator with the given object, iterator and arguments" do + enum = Enumerator.new(1, :upto, 3) + enum.should be_an_instance_of(Enumerator) + end + + it "creates a new custom enumerator that responds to #each" do + enum = Enumerator.new(1, :upto, 3) + enum.respond_to?(:each).should == true + end + + it "creates a new custom enumerator that runs correctly" do + Enumerator.new(1, :upto, 3).map{|x|x}.should == [1,2,3] + end + + it "aliases the second argument to :each" do + Enumerator.new(1..2).to_a.should == Enumerator.new(1..2, :each).to_a + end + + it "doesn't check for the presence of the iterator method" do + Enumerator.new(nil).should be_an_instance_of(Enumerator) + end + + it "uses the latest define iterator method" do + class StrangeEach + def each + yield :foo + end + end + enum = Enumerator.new(StrangeEach.new) + enum.to_a.should == [:foo] + class StrangeEach + def each + yield :bar + end + end + enum.to_a.should == [:bar] + end + +end |