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require 'helper'
describe EventMachine::HttpDecoders::GZip do
let(:compressed) {
compressed = ["1f8b08089668a6500003686900cbc8e402007a7a6fed03000000"].pack("H*")
}
it "should extract the stream of a vanilla gzip" do
header = EventMachine::HttpDecoders::GZipHeader.new
stream = header.extract_stream(compressed)
stream.unpack("H*")[0].should eq("cbc8e402007a7a6fed03000000")
end
it "should decompress a vanilla gzip" do
decompressed = ""
gz = EventMachine::HttpDecoders::GZip.new do |data|
decompressed << data
end
gz << compressed
gz.finalize!
decompressed.should eq("hi\n")
end
it "should decompress a vanilla gzip file byte by byte" do
decompressed = ""
gz = EventMachine::HttpDecoders::GZip.new do |data|
decompressed << data
end
compressed.each_char do |byte|
gz << byte
end
gz.finalize!
decompressed.should eq("hi\n")
end
it "should decompress a large file" do
decompressed = ""
gz = EventMachine::HttpDecoders::GZip.new do |data|
decompressed << data
end
gz << File.read(File.dirname(__FILE__) + "/fixtures/gzip-sample.gz")
gz.finalize!
decompressed.size.should eq(32907)
end
it "should not care how many chunks the file is split up into" do
examples = [
["\x1F", "\x8B", "\b", "\x00", "\x00", "\x00", "\x00", "\x00", "\x00", "\x00", "\xF3", "\xCB", "/", "Q", "p\xCB/\xCDK\x01\x00M\x8Ct\xB1\t\x00\x00\x00"],
["\x1F", "\x8B", "\b", "\x00", "\x00", "\x00", "\x00", "\x00\x00\x00\xF3\xCB/Qp\xCB/\xCDK\x01\x00M\x8Ct\xB1\t\x00\x00\x00"]
]
examples.each do |example|
decompressed = ""
gz = EventMachine::HttpDecoders::GZip.new do |data|
decompressed << data
end
example.each do |bytes|
gz << bytes
end
gz.finalize!
decompressed.should eq("Not Found")
end
end
it "should fail with a DecoderError if not a gzip file" do
not_a_gzip = ["1f8c08089668a650000"].pack("H*")
header = EventMachine::HttpDecoders::GZipHeader.new
lambda {
header.extract_stream(not_a_gzip)
}.should raise_exception(EventMachine::HttpDecoders::DecoderError)
end
end
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