commit 010fa6501eb6108b43476ef3505ee1a553fad01f
from: Sergey Bronnikov <estetus@gmail.com>
via: Sergey Bronnikov <sergeyb@tarantool.org>
date: Wed Jul 19 14:11:27 2023 UTC

tests: add digest.crc32 test

commit - 514a2051d89dfba098afc39dca5726d3ec92c98e
commit + 010fa6501eb6108b43476ef3505ee1a553fad01f
blob - /dev/null
blob + 32cfc119be17d443626d150b1264fca0d416d6eb (mode 644)
--- /dev/null
+++ tests/tarantool_digest_crc32.lua
@@ -0,0 +1,33 @@
+-- lua: rewrite crc32 digest via Lua C API,
+-- https://github.com/tarantool/tarantool/pull/6956/commits/b2c3f868e98f5ff35469bf6a7d06a6f25b682f8e
+-- https://github.com/tarantool/tarantool/issues/7937
+
+local luzer = require("luzer")
+local digest = require("digest")
+
+local function TestOneInput(buf)
+    local fdp = luzer.FuzzedDataProvider(buf)
+    local a = fdp:consume_string(10)
+    local b = fdp:consume_string(10)
+
+    -- calculate crc32 with one step.
+    local ok, res1 = pcall(digest.crc32.new, a .. b)
+    assert(ok == true)
+    assert(res1)
+
+    -- calculate crc32 incrementally.
+    local res2 = digest.crc32.new()
+    res2:update(a)
+    res2:update(b)
+
+	assert(res1 == res2)
+end
+
+local args = {
+    max_len = 4096,
+    print_pcs = 1,
+    artifact_prefix = "digest_crc32_",
+    max_total_time = 60,
+    print_final_stats = 1,
+}
+luzer.Fuzz(TestOneInput, nil, args)