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# typed: false
# coding: utf-8
describe PDF::Reader::LZW do
describe "#decode" do
it "decodes a lzw compress string" do
content = %w{ 80 0B 60 50 22 0C 0C 85 01 }.map { |byte|
byte.to_i(16)
}.pack("C*")
expect(PDF::Reader::LZW.decode(content)).to eq('-----A---B')
end
it "decodes another lzw compressed string" do
content = binread(File.dirname(__FILE__) + "/data/lzw_compressed2.dat")
expect(PDF::Reader::LZW.decode(content)).to match(/\ABT/)
end
it "raises PDF::Reader::MalformedPDFError when the stream isn't valid lzw" do
content = binread(File.dirname(__FILE__) + "/data/lzw_compressed_corrupt.dat")
expect {
PDF::Reader::LZW.decode(content)
}.to raise_error(PDF::Reader::MalformedPDFError)
end
end
end
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