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require_relative '../../spec_helper'
describe "Module#deprecate_constant" do
before :each do
@module = Module.new
@value = :value
@module::PUBLIC1 = @value
@module::PUBLIC2 = @value
@module::PRIVATE = @value
@module.private_constant :PRIVATE
@module.deprecate_constant :PRIVATE
end
describe "when accessing the deprecated module" do
it "passes the accessing" do
@module.deprecate_constant :PUBLIC1
value = nil
-> {
value = @module::PUBLIC1
}.should complain(/warning: constant .+::PUBLIC1 is deprecated/)
value.should equal(@value)
-> { @module::PRIVATE }.should raise_error(NameError)
end
it "warns with a message" do
@module.deprecate_constant :PUBLIC1
-> { @module::PUBLIC1 }.should complain(/warning: constant .+::PUBLIC1 is deprecated/)
-> { @module.const_get :PRIVATE }.should complain(/warning: constant .+::PRIVATE is deprecated/)
end
ruby_version_is '2.7' do
it "does not warn if Warning[:deprecated] is false" do
@module.deprecate_constant :PUBLIC1
deprecated = Warning[:deprecated]
begin
Warning[:deprecated] = false
-> { @module::PUBLIC1 }.should_not complain
ensure
Warning[:deprecated] = deprecated
end
end
end
end
it "accepts multiple symbols and strings as constant names" do
@module.deprecate_constant "PUBLIC1", :PUBLIC2
-> { @module::PUBLIC1 }.should complain(/warning: constant .+::PUBLIC1 is deprecated/)
-> { @module::PUBLIC2 }.should complain(/warning: constant .+::PUBLIC2 is deprecated/)
end
it "returns self" do
@module.deprecate_constant(:PUBLIC1).should equal(@module)
end
it "raises a NameError when given an undefined name" do
-> { @module.deprecate_constant :UNDEFINED }.should raise_error(NameError)
end
end
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