diff options
Diffstat (limited to 'spec/rubyspec/core/kernel/yield_self_spec.rb')
-rw-r--r-- | spec/rubyspec/core/kernel/yield_self_spec.rb | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/spec/rubyspec/core/kernel/yield_self_spec.rb b/spec/rubyspec/core/kernel/yield_self_spec.rb new file mode 100644 index 0000000000..817c01f288 --- /dev/null +++ b/spec/rubyspec/core/kernel/yield_self_spec.rb @@ -0,0 +1,26 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +has_yield_self = VersionGuard.new("2.5").match? || PlatformGuard.implementation?(:truffleruby) + +if has_yield_self + describe "Kernel#yield_self" do + it "yields self" do + object = Object.new + object.yield_self { |o| o.should equal object } + end + + it "returns the block return value" do + object = Object.new + object.yield_self { 42 }.should equal 42 + end + + it "returns a sized Enumerator when no block given" do + object = Object.new + enum = object.yield_self + enum.should be_an_instance_of Enumerator + enum.size.should equal 1 + enum.peek.should equal object + enum.first.should equal object + end + end +end |