mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
1d15d5f080
* Other ruby implementations use the spec/ruby directory. [Misc #13792] [ruby-core:82287] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
42 lines
1 KiB
Ruby
42 lines
1 KiB
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
|
|
require 'set'
|
|
|
|
describe "Set#select!" do
|
|
before :each do
|
|
@set = Set["one", "two", "three"]
|
|
end
|
|
|
|
it "yields every element of self" do
|
|
ret = []
|
|
@set.select! { |x| ret << x }
|
|
ret.sort.should == ["one", "two", "three"].sort
|
|
end
|
|
|
|
it "keeps every element from self for which the passed block returns true" do
|
|
@set.select! { |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 when self was modified" do
|
|
@set.select! { false }.should equal(@set)
|
|
end
|
|
|
|
it "returns nil when self was not modified" do
|
|
@set.select! { true }.should be_nil
|
|
end
|
|
|
|
it "returns an Enumerator when passed no block" do
|
|
enum = @set.select!
|
|
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
|