[Tarantool-patches] [PATCH luajit 21/25] test: enable <ffi_tabov.lua> LuaJIT test

[Sergey Kaplun]

This patch moves the <ffi_tabov.lua> test from the LuaJIT-tests suite to
the tarantool-tests suite, because this test should be run separately to
avoid overflow of the table with ctypes for other tests from
LuaJIT-tests suite.

Part of tarantool/tarantool#9398
---
 test/LuaJIT-tests/lib/ffi/ffi_tabov.lua | 12 -----------
 test/tarantool-tests/ffi-tabov.test.lua | 27 +++++++++++++++++++++++++
 2 files changed, 27 insertions(+), 12 deletions(-)
 delete mode 100644 test/LuaJIT-tests/lib/ffi/ffi_tabov.lua
 create mode 100644 test/tarantool-tests/ffi-tabov.test.lua

diff --git a/test/LuaJIT-tests/lib/ffi/ffi_tabov.lua b/test/LuaJIT-tests/lib/ffi/ffi_tabov.lua
deleted file mode 100644
index ba621960..00000000
--- a/test/LuaJIT-tests/lib/ffi/ffi_tabov.lua
+++ /dev/null
@@ -1,12 +0,0 @@
-local ffi = require("ffi")
-
-local last = 0
-
-assert(pcall(function()
-  for i=1,65536 do
-    last = i
-    ffi.typeof"struct {}"
-  end
-end) == false)
-
-assert(last > 20000)
diff --git a/test/tarantool-tests/ffi-tabov.test.lua b/test/tarantool-tests/ffi-tabov.test.lua
new file mode 100644
index 00000000..7ea8b24b
--- /dev/null
+++ b/test/tarantool-tests/ffi-tabov.test.lua
@@ -0,0 +1,27 @@
+local tap = require('tap')
+local ffi = require('ffi')
+
+-- This test is moved here from the LuaJIT-tests suite since it
+-- should be run separately because it exhausts the ctype table.
+local test = tap.test('ffi-tabov')
+
+test:plan(3)
+
+-- XXX: Amount of ctypes available to the user of a platform.
+local MIN_AVAILABLE_CTYPES = 20000
+
+local last = 0
+
+local res, errmsg = pcall(function()
+  for i = 1, 2^16 do
+    last = i
+    ffi.typeof('struct {}')
+  end
+end)
+
+test:ok(res == false, 'correct status')
+test:like(errmsg, 'table overflow', 'correct error message')
+
+test:ok(last > MIN_AVAILABLE_CTYPES, 'huge enough amount of free ctypes')
+
+test:done(true)
-- 
2.43.0