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| -rw-r--r-- | testes/heavy.lua | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/testes/heavy.lua b/testes/heavy.lua new file mode 100644 index 00000000..4731c747 --- /dev/null +++ b/testes/heavy.lua @@ -0,0 +1,173 @@ +-- $Id: heavy.lua,v 1.7 2017/12/29 15:42:15 roberto Exp $ +-- See Copyright Notice in file all.lua + +local function teststring () + print("creating a string too long") + do + local a = "x" + local st, msg = pcall(function () + while true do + a = a .. a.. a.. a.. a.. a.. a.. a.. a.. a + .. a .. a.. a.. a.. a.. a.. a.. a.. a.. a + .. a .. a.. a.. a.. a.. a.. a.. a.. a.. a + .. a .. a.. a.. a.. a.. a.. a.. a.. a.. a + .. a .. a.. a.. a.. a.. a.. a.. a.. a.. a + .. a .. a.. a.. a.. a.. a.. a.. a.. a.. a + .. a .. a.. a.. a.. a.. a.. a.. a.. a.. a + .. a .. a.. a.. a.. a.. a.. a.. a.. a.. a + .. a .. a.. a.. a.. a.. a.. a.. a.. a.. a + .. a .. a.. a.. a.. a.. a.. a.. a.. a.. a + print(string.format("string with %d bytes", #a)) + end + end) + assert(not st and + (string.find(msg, "string length overflow") or + string.find(msg, "not enough memory"))) + print("string length overflow with " .. #a * 100) + end + print('+') +end + +local function loadrep (x, what) + local p = 1<<20 + local s = string.rep(x, p) + local count = 0 + local function f() + count = count + p + if count % (0x80*p) == 0 then + io.stderr:write("(", count // 2^20, " M)") + end + return s + end + local st, msg = load(f, "=big") + print("\nmemory: ", collectgarbage'count' * 1024) + msg = string.match(msg, "^[^\n]+") -- get only first line + print(string.format("total: 0x%x %s ('%s')", count, what, msg)) + return st, msg +end + + +function controlstruct () + print("control structure too long") + local lim = ((1 << 24) - 2) // 3 + local s = string.rep("a = a + 1\n", lim) + s = "while true do " .. s .. "end" + assert(load(s)) + print("ok with " .. lim .. " lines") + lim = lim + 3 + s = string.rep("a = a + 1\n", lim) + s = "while true do " .. s .. "end" + local st, msg = load(s) + assert(not st and string.find(msg, "too long")) + print(msg) +end + + +function manylines () + print("loading chunk with too many lines") + local st, msg = loadrep("\n", "lines") + assert(not st and string.find(msg, "too many lines")) + print('+') +end + + +function hugeid () + print("loading chunk with huge identifier") + local st, msg = loadrep("a", "chars") + assert(not st and + (string.find(msg, "lexical element too long") or + string.find(msg, "not enough memory"))) + print('+') +end + +function toomanyinst () + print("loading chunk with too many instructions") + local st, msg = loadrep("a = 10; ", "instructions") + print('+') +end + + +local function loadrepfunc (prefix, f) + local count = -1 + local function aux () + count = count + 1 + if count == 0 then + return prefix + else + if count % (0x100000) == 0 then + io.stderr:write("(", count // 2^20, " M)") + end + return f(count) + end + end + local st, msg = load(aux, "k") + print("\nmemory: ", collectgarbage'count' * 1024) + msg = string.match(msg, "^[^\n]+") -- get only first line + print("expected error: ", msg) +end + + +function toomanyconst () + print("loading function with too many constants") + loadrepfunc("function foo () return {0,", + function (n) + -- convert 'n' to a string in the format [["...",]], + -- where '...' is a kind of number in base 128 + -- (in a range that does not include either the double quote + -- and the escape.) + return string.char(34, + ((n // 128^0) & 127) + 128, + ((n // 128^1) & 127) + 128, + ((n // 128^2) & 127) + 128, + ((n // 128^3) & 127) + 128, + ((n // 128^4) & 127) + 128, + 34, 44) + end) +end + + +function toomanystr () + local a = {} + local st, msg = pcall(function () + for i = 1, math.huge do + if i % (0x100000) == 0 then + io.stderr:write("(", i // 2^20, " M)") + end + a[i] = string.pack("I", i) + end + end) + local size = #a + a = collectgarbage'count' + print("\nmemory:", a * 1024) + print("expected error:", msg) + print("size:", size) +end + + +function toomanyidx () + local a = {} + local st, msg = pcall(function () + for i = 1, math.huge do + if i % (0x100000) == 0 then + io.stderr:write("(", i // 2^20, " M)") + end + a[i] = i + end + end) + print("\nmemory: ", collectgarbage'count' * 1024) + print("expected error: ", msg) + print("size:", #a) +end + + + +-- teststring() +-- controlstruct() +-- manylines() +-- hugeid() +-- toomanyinst() +-- toomanyconst() +-- toomanystr() +toomanyidx() + +print "OK" |