require File.expand_path('../../../spec_helper', __FILE__)

ruby_version_is "1.9" do
  describe "ENV.rassoc" do
    after(:each) do
      ENV.delete("foo")
    end

    it "returns an array of the key and value of the environment variable with the given value" do
      ENV["foo"] = "bar"
      ENV.rassoc("bar").should == ["foo", "bar"]
    end

    it "returns nil if no environment variable with the given value exists" do
      ENV.rassoc("bar").should == nil
    end

    it "returns the value element coerced with #to_str" do
      ENV["foo"] = "bar"
      v = mock('value')
      v.should_receive(:to_str).and_return("bar")
      ENV.rassoc(v).should == ["foo", "bar"]
    end
  end
end