diff options
Diffstat (limited to 'spec/ruby/shared/enumerator/with_index.rb')
-rw-r--r-- | spec/ruby/shared/enumerator/with_index.rb | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/spec/ruby/shared/enumerator/with_index.rb b/spec/ruby/shared/enumerator/with_index.rb new file mode 100644 index 0000000000..37048a7b52 --- /dev/null +++ b/spec/ruby/shared/enumerator/with_index.rb @@ -0,0 +1,32 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +describe :enum_with_index, shared: true do + + require File.expand_path('../../../fixtures/enumerator/classes', __FILE__) + + before :each do + @enum = [1, 2, 3, 4].to_enum + end + + it "passes each element and its index to block" do + @a = [] + @enum.send(@method) { |o, i| @a << [o, i] } + @a.should == [[1, 0], [2, 1], [3, 2], [4, 3]] + end + + it "returns the object being enumerated when given a block" do + [1, 2, 3, 4].should == @enum.send(@method) { |o, i| :glark } + end + + it "binds splat arguments properly" do + acc = [] + @enum.send(@method) { |*b| c,d = b; acc << c; acc << d } + [1, 0, 2, 1, 3, 2, 4, 3].should == acc + end + + it "returns an enumerator if no block is supplied" do + ewi = @enum.send(@method) + ewi.should be_an_instance_of(Enumerator) + ewi.to_a.should == [[1, 0], [2, 1], [3, 2], [4, 3]] + end +end |