From 2630360420b041bb605e8e0ef8a192a7a2f35a07 Mon Sep 17 00:00:00 2001
From: Sergey Ostanevich <sergos@tarantool.org>
Date: Wed, 24 Jul 2019 13:52:50 +0000
Subject: [PATCH] test: new test for LuaJIT fold machinery
https://github.com/LuaJIT/LuaJIT/issues/505
---
test/luajit-tap/fold_bug_LuaJIT_505.test.lua | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
create mode 100755 test/luajit-tap/fold_bug_LuaJIT_505.test.lua
diff --git a/test/luajit-tap/fold_bug_LuaJIT_505.test.lua b/test/luajit-tap/fold_bug_LuaJIT_505.test.lua
new file mode 100755
index 0000000000..2fee069640
--- /dev/null
+++ b/test/luajit-tap/fold_bug_LuaJIT_505.test.lua
@@ -0,0 +1,20 @@
+#!/usr/bin/env tarantool
+
+tap = require('tap')
+
+test = tap.test("505")
+test:plan(1)
+
+-- Test file to demonstrate Lua fold machinery icorrect behavior, details:
+-- https://github.com/LuaJIT/LuaJIT/issues/505
+
+jit.opt.start("hotloop=1")
+for _ = 1, 20 do
+ local value = "abc"
+ local pos_c = string.find(value, "c", 1, true)
+ local value2 = string.sub(value, 1, pos_c - 1)
+ local pos_b = string.find(value2, "b", 2, true)
+ assert(pos_b == 2, "FAIL: position of 'b' is " .. pos_b)
+end
+
+test:ok("PASS")
--
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