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Serialization spec: Fix number fuzzing (#12496)

master
Lars Müller 2022-07-02 21:58:23 +02:00 committed by GitHub
parent 3e308584a3
commit 5a562a597c
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 2 deletions
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6
builtin/common/tests/serialize_spec.lua
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@ -133,7 +133,9 @@ describe("serialize", function()
end
local function num()
local sign = math.random() < 0.5 and -1 or 1
local val = math.random(0, 2^52)
-- HACK math.random(a, b) requires a, b & b - a to fit within a 32-bit int
-- Use two random calls to generate a random number from 0 - 2^50 as lower & upper 25 bits
local val = math.random(0, 2^25) * 2^25 + math.random(0, 2^25 - 1)
local exp = math.random() < 0.5 and 1 or 2^(math.random(-120, 120))
return sign * val * exp
end
@ -152,7 +154,7 @@ describe("serialize", function()
local root = {}
local tables = {root}
local function random_table()
return tables[#tables == 1 and 1 or math.random(1, #tables)] -- luacheck: ignore
return tables[math.random(1, #tables)]
end
for _ = 1, math.random(1, max_actions) do
local tab = random_table()