diff options
Diffstat (limited to 'spec/rubyspec/library/set/delete_if_spec.rb')
-rw-r--r-- | spec/rubyspec/library/set/delete_if_spec.rb | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/spec/rubyspec/library/set/delete_if_spec.rb b/spec/rubyspec/library/set/delete_if_spec.rb new file mode 100644 index 0000000000..b6bd28a59f --- /dev/null +++ b/spec/rubyspec/library/set/delete_if_spec.rb @@ -0,0 +1,38 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require 'set' + +describe "Set#delete_if" do + before :each do + @set = Set["one", "two", "three"] + end + + it "yields every element of self" do + ret = [] + @set.delete_if { |x| ret << x } + ret.sort.should == ["one", "two", "three"].sort + end + + it "deletes every element from self for which the passed block returns true" do + @set.delete_if { |x| x.size == 3 } + @set.size.should eql(1) + + @set.should_not include("one") + @set.should_not include("two") + @set.should include("three") + end + + it "returns self" do + @set.delete_if { |x| x }.should equal(@set) + end + + it "returns an Enumerator when passed no block" do + enum = @set.delete_if + enum.should be_an_instance_of(Enumerator) + + enum.each { |x| x.size == 3 } + + @set.should_not include("one") + @set.should_not include("two") + @set.should include("three") + end +end |