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require "extend/string"
describe StringInreplaceExtension do
subject { string.extend(described_class) }
let(:string) { "foobar" }
describe "#sub!" do
it "adds an error to #errors when no replacement was made" do
subject.sub! "not here", "test"
expect(subject.errors).to eq(['expected replacement of "not here" with "test"'])
end
end
end
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