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require_relative '../../spec_helper'
require_relative 'shared/iterable_and_tolerating_size_increasing'
describe "Array#any?" do
describe 'with no block given (a default block of { |x| x } is implicit)' do
it "is false if the array is empty" do
empty_array = []
empty_array.should_not.any?
end
it "is false if the array is not empty, but all the members of the array are falsy" do
falsy_array = [false, nil, false]
falsy_array.should_not.any?
end
it "is true if the array has any truthy members" do
not_empty_array = ['anything', nil]
not_empty_array.should.any?
end
end
describe 'with a block given' do
@value_to_return = -> _ { false }
it_behaves_like :array_iterable_and_tolerating_size_increasing, :any?
it 'is false if the array is empty' do
empty_array = []
empty_array.any? {|v| 1 == 1 }.should == false
end
it 'is true if the block returns true for any member of the array' do
array_with_members = [false, false, true, false]
array_with_members.any? {|v| v == true }.should == true
end
it 'is false if the block returns false for all members of the array' do
array_with_members = [false, false, true, false]
array_with_members.any? {|v| v == 42 }.should == false
end
end
describe 'when given a pattern argument' do
it "ignores the block if there is an argument" do
-> {
['bar', 'foobar'].any?(/bar/) { false }.should == true
}.should complain(/given block not used/)
end
end
end
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