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require 'spec_helper'
describe "the scanf function" do
let(:node) { Puppet::Node.new('localhost') }
let(:compiler) { Puppet::Parser::Compiler.new(node) }
let(:scope) { Puppet::Parser::Scope.new(compiler) }
it 'scans a value and returns an array' do
expect(scope.function_scanf(['42', '%i'])[0] == 42)
end
it 'returns empty array if nothing was scanned' do
expect(scope.function_scanf(['no', '%i']) == [])
end
it 'produces result up to first unsuccessful scan' do
expect(scope.function_scanf(['42 no', '%i'])[0] == 42)
end
it 'errors when not given enough arguments' do
expect do
scope.function_scanf(['42'])
end.to raise_error(/.*scanf\(\): Wrong number of arguments given/m)
end
end
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