Merge pull request #10290 from janlazo/vim-8.1.0086

vim-patch:8.1.{86,347}

src/nvim/os/dl.c

@@ -54,6 +54,7 @@ bool os_libcall(const char *libname,
   // open the dynamic loadable library
   if (uv_dlopen(libname, &lib)) {
       EMSG2(_("dlerror = \"%s\""), uv_dlerror(&lib));
+      uv_dlclose(&lib);
       return false;
   }
 

src/nvim/testdir/test_functions.vim

@@ -1,4 +1,5 @@
 " Tests for various functions.
+source shared.vim
 
 " Must be done first, since the alternate buffer must be unset.
 func Test_00_bufexists()
@@ -1140,3 +1141,50 @@ func Test_reg_executing_and_recording()
   delfunc s:save_reg_stat
   unlet s:reg_stat
 endfunc
+
+func Test_libcall_libcallnr()
+  if !has('libcall')
+    return
+  endif
+
+  if has('win32')
+    let libc = 'msvcrt.dll'
+  elseif has('mac')
+    let libc = 'libSystem.B.dylib'
+  elseif system('uname -s') =~ 'SunOS'
+    " Set the path to libc.so according to the architecture.
+    let test_bits = system('file ' . GetVimProg())
+    let test_arch = system('uname -p')
+    if test_bits =~ '64-bit' && test_arch =~ 'sparc'
+      let libc = '/usr/lib/sparcv9/libc.so'
+    elseif test_bits =~ '64-bit' && test_arch =~ 'i386'
+      let libc = '/usr/lib/amd64/libc.so'
+    else
+      let libc = '/usr/lib/libc.so'
+    endif
+  else
+    " On Unix, libc.so can be in various places.
+    " Interestingly, using an empty string for the 1st argument of libcall
+    " allows to call functions from libc which is not documented.
+    let libc = ''
+  endif
+
+  if has('win32')
+    call assert_equal($USERPROFILE, libcall(libc, 'getenv', 'USERPROFILE'))
+  else
+    call assert_equal($HOME, libcall(libc, 'getenv', 'HOME'))
+  endif
+
+  " If function returns NULL, libcall() should return an empty string.
+  call assert_equal('', libcall(libc, 'getenv', 'X_ENV_DOES_NOT_EXIT'))
+
+  " Test libcallnr() with string and integer argument.
+  call assert_equal(4, libcallnr(libc, 'strlen', 'abcd'))
+  call assert_equal(char2nr('A'), libcallnr(libc, 'toupper', char2nr('a')))
+
+  call assert_fails("call libcall(libc, 'Xdoesnotexist_', '')", 'E364:')
+  call assert_fails("call libcallnr(libc, 'Xdoesnotexist_', '')", 'E364:')
+
+  call assert_fails("call libcall('Xdoesnotexist_', 'getenv', 'HOME')", 'E364:')
+  call assert_fails("call libcallnr('Xdoesnotexist_', 'strlen', 'abcd')", 'E364:')
+endfunc

src/nvim/testdir/test_writefile.vim

@@ -33,7 +33,7 @@ func Test_writefile_fails_gently()
 endfunc
 
 func Test_writefile_fails_conversion()
-  if !has('multi_byte') || !has('iconv')
+  if !has('multi_byte') || !has('iconv') || system('uname -s') =~ 'SunOS'
     return
   endif
   " Without a backup file the write won't happen if there is a conversion