[Tarantool-patches] [PATCH v2 luajit 09/26] test: enable <ffi_convert.lua> in LuaJIT-tests

[Sergey Kaplun via Tarantool-patches <tarantool-patches@dev.tarantool.org>]

This patch changes `dofile()` (which uses an unreliable relative file
path and mutates `_G` with global functions to be defined) to the
corresponding require and renames the C library in the `require()` call.
It adds groups with the names of subtests and enables the test in
<index>. It renames structure and enum typedefs to avoid conflicts with
cdef in other tests. The GC threshold is increased since all tests run
in a single process, so the number of GC objects is greater.

Part of tarantool/tarantool#9398
---
 test/LuaJIT-tests/lib/ffi/ffi_convert.lua | 35 +++++++++++------------
 test/LuaJIT-tests/lib/ffi/index           |  1 +
 2 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/test/LuaJIT-tests/lib/ffi/ffi_convert.lua b/test/LuaJIT-tests/lib/ffi/ffi_convert.lua
index bd3fb1f9..284f2b53 100644
--- a/test/LuaJIT-tests/lib/ffi/ffi_convert.lua
+++ b/test/LuaJIT-tests/lib/ffi/ffi_convert.lua
@@ -1,8 +1,7 @@
 local ffi = require("ffi")
 
-local ctest = require("ctest")
-
-dofile("../common/ffi_util.inc")
+local ctest = require("libctest")
+local fails = require("common.fails")
 
 local tonumber = tonumber
 
@@ -32,15 +31,15 @@ typedef struct arrinc_t {
   int a[];
 } arrinc_t;
 
-typedef enum uenum_t {
+typedef enum uenum_convert_t {
   UE0, UE71 = 71, UE72
-} uenum_t;
+} uenum_convert_t;
 
-typedef enum ienum_t {
+typedef enum ienum_convert_t {
   IE0, IEM12 = -12, IEM11
-} ienum_t;
+} ienum_convert_t;
 
-typedef struct foo_t {
+typedef struct foo_convert_t {
   bool b;
   int8_t i8;
   uint8_t u8;
@@ -79,9 +78,9 @@ typedef struct foo_t {
   int si_guard;
   nest_t sn;
   uni_t ui;
-  uenum_t ue;
-  ienum_t ie;
-} foo_t;
+  uenum_convert_t ue;
+  ienum_convert_t ie;
+} foo_convert_t;
 
 char *strcpy(char *dest, const char *src);
 typedef struct FILE FILE;
@@ -89,11 +88,11 @@ int fileno(FILE *stream);
 int _fileno(FILE *stream);
 ]]
 
-do
-  local foo_t = ffi.typeof("foo_t")
-  local sz = ffi.sizeof(foo_t)
-  local x = foo_t()
-  local y = foo_t()
+do --- misc
+  local foo_convert_t = ffi.typeof("foo_convert_t")
+  local sz = ffi.sizeof(foo_convert_t)
+  local x = foo_convert_t()
+  local y = foo_convert_t()
   ffi.fill(x, sz, 0xff)
   ffi.fill(y, sz, 0xee)
 
@@ -769,7 +768,7 @@ do
   x.ppf = ffi.C.strcpy
 end
 
-do
+do --- GC cdata __index
   collectgarbage()
   local oc = collectgarbage("count")
   local cd = ffi.new"struct { struct { int a; } x;}"
@@ -780,7 +779,7 @@ do
   for i=1,2 do
     f(cd)
     local nc = collectgarbage("count")
-    assert(nc < oc + 200, "GC step missing for cdata __index")
+    assert(nc < oc * 3, "GC step missing for cdata __index")
     jit.off(f)
   end
 end
diff --git a/test/LuaJIT-tests/lib/ffi/index b/test/LuaJIT-tests/lib/ffi/index
index 0a72daed..5c2be87f 100644
--- a/test/LuaJIT-tests/lib/ffi/index
+++ b/test/LuaJIT-tests/lib/ffi/index
@@ -7,6 +7,7 @@ ffi_bitfield.lua
 ffi_call.lua
 ffi_callback.lua
 ffi_const.lua
+ffi_convert.lua
 istype.lua
 jit_array.lua
 jit_complex.lua
-- 
2.43.0