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require_relative '../../spec_helper'
require_relative 'fixtures/common'
describe "ENV.shift" do
before :each do
@orig = ENV.to_hash
@external = Encoding.default_external
@internal = Encoding.default_internal
Encoding.default_external = Encoding::BINARY
ENV.replace({"FOO"=>"BAR"})
end
after :each do
Encoding.default_external = @external
Encoding.default_internal = @internal
ENV.replace @orig
end
it "returns a pair and deletes it" do
ENV.should.has_key?("FOO")
pair = ENV.shift
pair.should == ["FOO", "BAR"]
ENV.should_not.has_key?("FOO")
end
it "returns nil if ENV.empty?" do
ENV.clear
ENV.shift.should == nil
end
it "uses the locale encoding if Encoding.default_internal is nil" do
Encoding.default_internal = nil
pair = ENV.shift
pair.first.encoding.should equal(ENVSpecs.encoding)
pair.last.encoding.should equal(ENVSpecs.encoding)
end
it "transcodes from the locale encoding to Encoding.default_internal if set" do
Encoding.default_internal = Encoding::IBM437
pair = ENV.shift
pair.first.encoding.should equal(Encoding::IBM437)
pair.last.encoding.should equal(Encoding::IBM437)
end
end
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