require 'iounpack'

describe IOUnpack do
	it 'has nothing to read, if empty directives' do
		expect( IOUnpack.new('').len).to eql(0)
	end

	<<EOF.each_line do |l|
1 c
2 cc
2 c2
2  cc
2  c c
3  cc c
4  cc c2
4  c3c
14 c13c
14 c13 c
16 q>q<
19 q>2c3
19 q>2  c3
EOF
		/\A(\d+) (.*)/
		it "wants read #$2 bytes for '#$1'" do
			expect( IOUnpack.new('cc').len).to eql(2)
		end
	end
end