Debugging buffer_spec.lua

debug.diff

diff --git a/src/nvim/buffer.c b/src/nvim/buffer.c
index b76bad6..a7427c0 100644
--- a/src/nvim/buffer.c
+++ b/src/nvim/buffer.c
@@ -1418,6 +1418,9 @@ buflist_new (
     lastbuf = buf;
 
     buf->b_fnum = top_file_num++;
+    printf("\n  c: buf->b_fnum:\t%d\n", buf->b_fnum);
+    printf("\n  c: offset of b_fnum:\t%lu\n",
+           offsetof(struct file_buffer, b_fnum));
     if (top_file_num < 0) {             /* wrap around (may cause duplicates) */
       EMSG(_("W14: Warning: List of file names overflow"));
       if (emsg_silent == 0) {
diff --git a/test/unit/buffer_spec.lua b/test/unit/buffer_spec.lua
index 5244c2a..c0ff09e 100644
--- a/test/unit/buffer_spec.lua
+++ b/test/unit/buffer_spec.lua
@@ -1,4 +1,5 @@
 local helpers = require("test.unit.helpers")
+local ffi = require('ffi')
 
 local to_cstr = helpers.to_cstr
 local eq      = helpers.eq
@@ -13,7 +14,11 @@ describe('buffer functions', function()
 
   local buflist_new = function(file, flags)
     local c_file = to_cstr(file)
-    return buffer.buflist_new(c_file, c_file, 1, flags)
+    local buf = buffer.buflist_new(c_file, c_file, 1, flags)
+    print("lua: buf->b_fnum:", buf.b_fnum)
+    print("lua: offset of b_fnum:",
+          ffi.offsetof("struct file_buffer", "b_fnum"))
+    return buf
   end
 
   local close_buffer = function(win, buf, action, abort_if_last)
@@ -92,6 +97,7 @@ describe('buffer functions', function()
       close_buffer(NULL, buf, buffer.DOBUF_WIPE, 0)
     end)
 
+    --[[
     it('should prefer to match the start of a file path', function()
       local buf1 = buflist_new(path1, buffer.BLN_LISTED)
       local buf2 = buflist_new(path2, buffer.BLN_LISTED)
@@ -207,5 +213,6 @@ describe('buffer functions', function()
       close_buffer(NULL, buf1, buffer.DOBUF_WIPE, 0)
       close_buffer(NULL, buf2, buffer.DOBUF_WIPE, 0)
     end)
+    --]]
   end)
 end)

output_10_10

% make unittest
/Applications/Xcode.app/Contents/Developer/usr/bin/make  -C .deps/build/third-party
[ 22%] Built target libuv
[ 44%] Built target luajit
[ 66%] Built target luarocks
[ 88%] Built target msgpack
[ 91%] Built target busted
[ 94%] Built target lua-messagepack
[ 97%] Built target lpeg
[100%] Built target nvim-client
[100%] Built target third-party
/Applications/Xcode.app/Contents/Developer/usr/bin/make  -C build
[ 83%] Built target nvim
[ 83%] Built target sjiscorr
[100%] Built target translations
/Applications/Xcode.app/Contents/Developer/usr/bin/make  -C build unittest
[ 97%] Built target nvim-test
[100%] Built target unittest-headers

  c: buf->b_fnum:	1

  c: offset of b_fnum:	192
●
  c: buf->b_fnum:	2

  c: offset of b_fnum:	192
lua: buf->b_fnum:	67108864
lua: offset of b_fnum:	181
●lua: buf->b_fnum:	67108864
lua: offset of b_fnum:	181
●lua: buf->b_fnum:	67108864
lua: offset of b_fnum:	181
●lua: buf->b_fnum:	67108864
lua: offset of b_fnum:	181
●
  c: buf->b_fnum:	3

  c: offset of b_fnum:	192
lua: buf->b_fnum:	67108864
lua: offset of b_fnum:	181
●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●
194 successes / 1 failure / 0 errors / 0 pending : 0.0 seconds

Failure → /Users/stefan/Dev/neovim/test/unit/buffer_spec.lua @ 92
buffer functions buflist_findpat should find exact matches
/Users/stefan/Dev/neovim/test/unit/buffer_spec.lua:95: Expected objects to be the same. Passed in:
(number) 3
Expected:
(number) 67108864

stack traceback:
	/Users/stefan/Dev/neovim/test/unit/buffer_spec.lua:92: in function </Users/stefan/Dev/neovim/test/unit/buffer_spec.lua:83>

CMake Error at /Users/stefan/Dev/neovim/cmake/RunTests.cmake:22 (message):
  Unit tests failed.


make[4]: *** [CMakeFiles/unittest] Error 1
make[3]: *** [CMakeFiles/unittest.dir/all] Error 2
make[2]: *** [CMakeFiles/unittest.dir/rule] Error 2
make[1]: *** [unittest] Error 2
make: *** [unittest] Error 2

output_10_9

% make unittest
/Applications/Xcode.app/Contents/Developer/usr/bin/make  -C .deps/build/third-party
[ 22%] Built target libuv
[ 44%] Built target luajit
[ 66%] Built target luarocks
[ 88%] Built target msgpack
[ 91%] Built target busted
[ 94%] Built target lua-messagepack
[ 97%] Built target lpeg
[100%] Built target nvim-client
[100%] Built target third-party
/Applications/Xcode.app/Contents/Developer/usr/bin/make  -C build
[  0%] Generating auto/buffer.c.generated.h, ../../include/buffer.h.generated.h
Scanning dependencies of target nvim
[  2%] Building C object src/nvim/CMakeFiles/nvim.dir/buffer.c.o
Linking C executable ../../bin/nvim
[100%] Built target nvim
/Applications/Xcode.app/Contents/Developer/usr/bin/make  -C build unittest
[  1%] Built target unittest-headers
Scanning dependencies of target nvim-test
[  1%] Building C object src/nvim/CMakeFiles/nvim-test.dir/buffer.c.o
Linking C shared module libnvim-test.so
[100%] Built target nvim-test

  c: buf->b_fnum:	1

  c: offset of b_fnum:	192
●
  c: buf->b_fnum:	2

  c: offset of b_fnum:	192
lua: buf->b_fnum:	2
lua: offset of b_fnum:	192
●lua: buf->b_fnum:	2
lua: offset of b_fnum:	192
●lua: buf->b_fnum:	2
lua: offset of b_fnum:	192
●lua: buf->b_fnum:	2
lua: offset of b_fnum:	192
●
  c: buf->b_fnum:	3

  c: offset of b_fnum:	192
lua: buf->b_fnum:	3
lua: offset of b_fnum:	192
●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●ERROR: helpers.lua: Preprocess.preprocess_stream():read() returned empty
●ERROR: helpers.lua: Preprocess.preprocess_stream():read() returned empty
●ERROR: helpers.lua: Preprocess.preprocess_stream():read() returned empty
●
122 successes / 0 failures / 3 errors / 0 pending : 0.0 seconds

Error → ./test/unit/formatc.lua:158: bad argument #2 to 'TokeniseC' (string expected, got nil)


stack traceback:


Error → ./test/unit/formatc.lua:158: bad argument #2 to 'TokeniseC' (string expected, got nil)


stack traceback:


Error → ./test/unit/formatc.lua:158: bad argument #2 to 'TokeniseC' (string expected, got nil)


stack traceback:

CMake Error at /Users/stefan/Dev/neovim/cmake/RunTests.cmake:22 (message):
  Unit tests failed.


make[4]: *** [CMakeFiles/unittest] Error 1
make[3]: *** [CMakeFiles/unittest.dir/all] Error 2
make[2]: *** [CMakeFiles/unittest.dir/rule] Error 2
make[1]: *** [unittest] Error 2
make: *** [unittest] Error 2

stefan at imac in ~/Dev/neovim on git:master+
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