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ruby--ruby/spec/ruby/core/env/assoc_spec.rb
2019-11-30 21:26:52 +01:00

31 lines
850 B
Ruby

require_relative '../../spec_helper'
describe "ENV.assoc" do
before :each do
@foo = ENV["foo"]
end
after :each do
ENV["foo"] = @foo
end
it "returns an array of the key and value of the environment variable with the given key" do
ENV["foo"] = "bar"
ENV.assoc("foo").should == ["foo", "bar"]
end
it "returns nil if no environment variable with the given key exists" do
ENV.assoc("foo").should == nil
end
it "returns the key element coerced with #to_str" do
ENV["foo"] = "bar"
k = mock('key')
k.should_receive(:to_str).and_return("foo")
ENV.assoc(k).should == ["foo", "bar"]
end
it "raises TypeError if the argument is not a String and does not respond to #to_str" do
-> { ENV.assoc(Object.new) }.should raise_error(TypeError, "no implicit conversion of Object into String")
end
end