mirror of
https://github.com/vxcontrol/lualibs-zlib.git
synced 2026-07-01 10:05:29 -04:00
cosmin.apreutesei
67 lines
1.5 KiB
Lua
67 lines
1.5 KiB
Lua
local zlib = require'zlib'
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local glue = require'glue'
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local ffi = require'ffi'
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require'unit'
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test(zlib.version():match'^1.2.7', '1.2.7')
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test(zlib.uncompress(zlib.compress('aaa'), nil, 1024), 'aaa')
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test(glue.tohex(zlib.adler32'The game done changed.'), '587507ba')
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test(glue.tohex(zlib.crc32'Game\'s the same, just got more fierce.'), '2c40120a')
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local function gztest(file, content)
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local gz = zlib.open(file)
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test(gz:read(#content), content)
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test(#gz:read(1), 0)
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test(gz:eof(), true)
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gz:close()
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end
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local gz = zlib.open('media/gzip/test1.txt.gz', 'w')
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test(gz:write'The game done changed.', #'The game done changed.')
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gz:close()
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gztest('media/gzip/test.txt.gz', 'The game done changed.')
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gztest('media/gzip/test1.txt.gz', 'The game done changed.')
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os.remove('media/gzip/test1.txt.gz')
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local function gen(n)
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local t = {}
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for i=1,n do
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t[i] = string.format('dude %x\r\n', i)
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end
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return table.concat(t)
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end
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local function reader(s)
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local done
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return function()
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if done then return end
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done = true
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return s
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end
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end
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local function writer()
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local t = {}
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return function(data, sz)
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if not data then return table.concat(t) end
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t[#t+1] = ffi.string(data, sz)
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end
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end
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local function test(format)
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local src = gen(100000)
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local write = writer()
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zlib.deflate(reader(src), write, nil, format)
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local dst = write()
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local write = writer()
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zlib.inflate(reader(dst), write, nil, format)
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local src2 = write()
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assert(src == src2)
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print(string.format('size: %dK, ratio: %d%%', #src/1024, #dst / #src * 100))
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end
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test'gzip'
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test'zlib'
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test'deflate'
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