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require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../../enumerable/shared/enumeratorized', __FILE__)
describe "ENV.delete_if" do
it "deletes pairs if the block returns true" do
ENV["foo"] = "bar"
ENV.delete_if { |k, v| k == "foo" }
ENV["foo"].should == nil
end
it "returns ENV even if nothing deleted" do
ENV.delete_if { false }.should_not == nil
end
it "returns an Enumerator if no block given" do
ENV.delete_if.should be_an_instance_of(Enumerator)
end
it "deletes pairs through enumerator" do
ENV["foo"] = "bar"
enum = ENV.delete_if
enum.each { |k, v| k == "foo" }
ENV["foo"].should == nil
end
it_behaves_like :enumeratorized_with_origin_size, :delete_if, ENV
end
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