blob: 2235eb37669038a649ba50c0487d8720ce1bfa6e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
require_relative '../../../spec_helper'
require 'set'
describe "SortedSet#keep_if" do
before :each do
@set = SortedSet["one", "two", "three"]
end
it "yields each Object in self in sorted order" do
ret = []
@set.keep_if { |x| ret << x }
ret.should == ["one", "two", "three"].sort
end
it "keeps every element from self for which the passed block returns true" do
@set.keep_if { |x| x.size != 3 }
@set.to_a.should == ["three"]
end
it "returns self" do
@set.keep_if {}.should equal(@set)
end
it "returns an Enumerator when passed no block" do
enum = @set.keep_if
enum.should be_an_instance_of(Enumerator)
enum.each { |x| x.size != 3 }
@set.to_a.should == ["three"]
end
end
|
