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200 lines (166 loc) · 5.78 KB
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print "1..9"
local src_dir, build_dir = ...
src_dir = src_dir or "./"
build_dir = build_dir or "./"
package.path = src_dir .. "?.lua;" .. package.path
package.cpath = build_dir .. "?.so;" .. package.cpath
local tap = require("tap")
local lz = require("zlib")
local ok = tap.ok
local table = require("table")
local io = require("io")
function main()
test_stats()
test_buff_err()
test_small_inputs()
test_basic()
test_large()
test_no_input()
test_invalid_input()
test_streaming()
test_illegal_state()
test_checksum()
test_version()
test_tom_macwright()
test_amnon_david()
end
function test_tom_macwright()
local deflated =
assert(io.open(src_dir.. "/tom_macwright.gz")):read("*a")
local inflated = lz.inflate()(deflated)
local expected_inflated =
assert(io.open(src_dir.. "/tom_macwright.out")):read("*a")
ok(expected_inflated == inflated, "Tom MacWright Test")
end
function test_amnon_david()
local body = assert(io.open(src_dir.."/amnon_david.gz")):read("*a")
local inflate = lz.inflate()
local inflated, eof, bytes_in, bytes_out = inflate(body)
local deflate = lz.deflate()
local deflated, eof, bytes_in, bytes_out = deflate(inflated, "full")
end
function test_stats()
local string = ("one"):rep(20)
local deflated, eof, bin, bout = lz.deflate()(string, 'finish')
ok(eof == true, "eof is true (" .. tostring(eof) .. ")");
ok(bin > bout, "bytes in is greater than bytes out?")
ok(#deflated == bout, "bytes out is the same size as deflated string length")
ok(#string == bin, "bytes in is the same size as the input string length")
end
-- Thanks to Tobias Markmann for the bug report! We are trying to
-- force inflate() to return a Z_BUF_ERROR (which should be recovered
-- from). For some reason this only happens when the input is exactly
-- LUAL_BUFFERSIZE (at least on my machine).
function test_buff_err()
local text = ("X"):rep(lz._TEST_BUFSIZ);
local deflated = lz.deflate()(text, 'finish')
for i=1,#deflated do
lz.inflate()(deflated:sub(1,i))
end
end
function test_small_inputs()
local text = ("X"):rep(lz._TEST_BUFSIZ);
local deflated = lz.deflate()(text, 'finish')
local inflated = {}
local inflator = lz.inflate()
for i=1,#deflated do
local part = inflator(deflated:sub(i,i))
table.insert(inflated, part)
end
inflated = table.concat(inflated)
ok(inflated == text, "Expected " .. #text .. " Xs got " .. #inflated)
end
function test_basic()
local test_string = "abcdefghijklmnopqrstuv"
ok(lz.inflate()(lz.deflate()(), "finish") == "")
-- Input to deflate is same as output to inflate:
local deflated = lz.deflate()(test_string, "finish")
local inflated = lz.inflate()(deflated, "finish")
ok(test_string == inflated, "'" .. tostring(test_string) .. "' == '" .. tostring(inflated) .. "'")
end
function test_large()
-- Try a larger string:
local numbers = ""
for i=1, 100 do numbers = numbers .. string.format("%3d", i) end
local numbers_table = {}
for i=1, 10000 do numbers_table[i] = numbers end
local test_string = table.concat(numbers_table, "\n")
local deflated = lz.deflate()(test_string, "finish")
local inflated = lz.inflate()(deflated, "finish")
ok(test_string == inflated, "large string")
end
function test_no_input()
local stream = lz.deflate()
local deflated = stream("")
deflated = deflated .. stream("")
deflated = deflated .. stream(nil, "finish")
ok("" == lz.inflate()(deflated, "finish"), "empty string")
end
function test_invalid_input()
local stream = lz.inflate()
local isok, err = pcall(
function()
stream("bad input")
end)
ok(not isok)
ok(string.find(err, "^InvalidInput"),
string.format("InvalidInput error (%s)", err))
end
function test_streaming()
local shrink = lz.deflate(lz.BEST_COMPRESSION)
local enlarge = lz.inflate()
local expected = {}
local got = {}
local chant = "Isn't He great, isn't He wonderful?\n"
for i=1,100 do
if ( i == 100 ) then
chant = nil
print "EOF round"
end
local shrink_part, shrink_eof = shrink(chant)
local enlarge_part, enlarge_eof = enlarge(shrink_part)
if ( i == 100 ) then
if not shrink_eof then error("expected eof after shrinking flush") end
if not enlarge_eof then error("expected eof after enlarging") end
else
if shrink_eof then error("unexpected eof after shrinking") end
if enlarge_eof then error("unexpected eof after enlarging") end
end
if enlarge_part then table.insert(got, enlarge_part) end
if chant then table.insert(expected, chant) end
end
ok(table.concat(got) == table.concat(expected), "streaming works")
end
function test_illegal_state()
local stream = lz.deflate()
stream("abc")
stream() -- eof/close
local _, emsg = pcall(
function()
stream("printing on 'closed' handle")
end)
ok(string.find(emsg, "^IllegalState"),
string.format("IllegalState error (%s)", emsg))
local enlarge = lz.inflate()
end
function test_checksum()
for _, factory in pairs{lz.crc32, lz.adler32} do
local csum = factory()("one two")
-- Multiple calls:
local compute = factory()
compute("one")
assert(csum == compute(" two"))
-- Multiple compute_checksums joined:
local compute1, compute2 = factory(), factory()
compute1("one")
compute2(" two")
assert(csum == compute1(compute2))
end
end
function test_version()
local major, minor, patch = lz.version()
ok(1 == major, "major version 1 == " .. major);
ok(type(minor) == "number", "minor version is number (" .. minor .. ")")
ok(type(patch) == "number", "patch version is number (" .. patch .. ")")
end
main()