diff options
Diffstat (limited to 'spec')
-rw-r--r-- | spec/ruby/core/enumerator/lazy/uniq_spec.rb | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/spec/ruby/core/enumerator/lazy/uniq_spec.rb b/spec/ruby/core/enumerator/lazy/uniq_spec.rb index 6220c7ba34..391d2f6839 100644 --- a/spec/ruby/core/enumerator/lazy/uniq_spec.rb +++ b/spec/ruby/core/enumerator/lazy/uniq_spec.rb @@ -3,6 +3,26 @@ require File.expand_path('../fixtures/classes', __FILE__) ruby_version_is '2.4' do describe 'Enumerator::Lazy#uniq' do + context 'without block' do + before :each do + @lazy = [0, 1, 0, 1].to_enum.lazy.uniq + end + + it 'returns a lazy enumerator' do + @lazy.should be_an_instance_of(Enumerator::Lazy) + @lazy.force.should == [0, 1] + end + + it 'return same value after rewind' do + @lazy.force.should == [0, 1] + @lazy.force.should == [0, 1] + end + + it 'sets the size to nil' do + @lazy.size.should == nil + end + end + context 'when yielded with an argument' do before :each do @lazy = [0, 1, 2, 3].to_enum.lazy.uniq(&:even?) @@ -13,6 +33,11 @@ ruby_version_is '2.4' do @lazy.force.should == [0, 1] end + it 'return same value after rewind' do + @lazy.force.should == [0, 1] + @lazy.force.should == [0, 1] + end + it 'sets the size to nil' do @lazy.size.should == nil end @@ -31,6 +56,12 @@ ruby_version_is '2.4' do @lazy = enum.lazy end + it 'return same value after rewind' do + enum = @lazy.uniq { |_, label| label.downcase } + enum.force.should == [[0, 'foo'], [2, 'bar']] + enum.force.should == [[0, 'foo'], [2, 'bar']] + end + it 'returns all yield arguments as an array' do @lazy.uniq { |_, label| label.downcase }.force.should == [[0, 'foo'], [2, 'bar']] end |