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require_relative '../../spec_helper'
describe "ENV.delete" do
after :each do
ENV.delete("foo")
end
it "removes the variable from the environment" do
ENV["foo"] = "bar"
ENV.delete("foo")
ENV["foo"].should == nil
end
it "returns the previous value" do
ENV["foo"] = "bar"
ENV.delete("foo").should == "bar"
end
it "yields the name to the given block if the named environment variable does not exist" do
ENV.delete("foo")
ENV.delete("foo") { |name| ScratchPad.record name }
ScratchPad.recorded.should == "foo"
end
end
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