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require File.expand_path('../../../spec_helper', __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
ruby_version_is "" ... "1.8.7" do
it "raises LocalJumpError if no block given" do
lambda { ENV.delete_if }.should raise_error(LocalJumpError)
end
end
ruby_version_is "1.8.7" do
it "returns an Enumerator if no block given" do
ENV.delete_if.should be_an_instance_of(enumerator_class)
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
end
end
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