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require_relative '../../spec_helper'
describe "FrozenError" do
ruby_version_is "2.5" do
it "is a subclass of RuntimeError" do
RuntimeError.should be_ancestor_of(FrozenError)
end
end
end
describe "FrozenError.new" do
ruby_version_is "2.7" do
it "should take optional receiver argument" do
o = Object.new
FrozenError.new("msg", o).receiver.should equal(o)
end
end
end
describe "FrozenError#receiver" do
ruby_version_is "2.7" do
it "should return frozen object that modification was attempted on" do
o = Object.new.freeze
begin
def o.x; end
rescue => e
e.should be_kind_of(FrozenError)
e.receiver.should equal(o)
else
raise
end
end
end
end
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