patch 7.4.1975
Problem:    On MS-Windows large files (> 2Gbyte) cause problems.
Solution:   Use "off_T" instead of "off_t".  Use "stat_T" instead of "struct
            stat".  Use 64 bit system functions if available.  (Ken Takata)
diff --git a/src/testdir/test_stat.vim b/src/testdir/test_stat.vim
new file mode 100644
index 0000000..89ca9ef
--- /dev/null
+++ b/src/testdir/test_stat.vim
@@ -0,0 +1,64 @@
+" Tests for stat functions and checktime
+
+func Test_existent_file()
+  let fname='Xtest.tmp'
+
+  let ts=localtime()
+  sleep 1
+  let fl=['Hello World!']
+  call writefile(fl, fname)
+  let tf=getftime(fname)
+  sleep 1
+  let te=localtime()
+
+  call assert_true(ts <= tf && tf <= te)
+  call assert_equal(strlen(fl[0] . "\n"), getfsize(fname))
+  call assert_equal('file', getftype(fname))
+  call assert_equal('rw-', getfperm(fname)[0:2])
+endfunc
+
+func Test_existent_directory()
+  let dname='.'
+
+  call assert_equal(0, getfsize(dname))
+  call assert_equal('dir', getftype(dname))
+  call assert_equal('rwx', getfperm(dname)[0:2])
+endfunc
+
+func Test_checktime()
+  let fname='Xtest.tmp'
+
+  let fl=['Hello World!']
+  call writefile(fl, fname)
+  set autoread
+  exec 'e' fname
+  sleep 2
+  let fl=readfile(fname)
+  let fl[0] .= ' - checktime'
+  call writefile(fl, fname)
+  checktime
+  call assert_equal(fl[0], getline(1))
+endfunc
+
+func Test_nonexistent_file()
+  let fname='Xtest.tmp'
+
+  call delete(fname)
+  call assert_equal(-1, getftime(fname))
+  call assert_equal(-1, getfsize(fname))
+  call assert_equal('', getftype(fname))
+  call assert_equal('', getfperm(fname))
+endfunc
+
+func Test_win32_symlink_dir()
+  " On Windows, non-admin users cannot create symlinks.
+  " So we use an existing symlink for this test.
+  if has('win32')
+    " Check if 'C:\Users\All Users' is a symlink to a directory.
+    let res=system('dir C:\Users /a')
+    if match(res, '\C<SYMLINKD> *All Users') >= 0
+      " Get the filetype of the symlink.
+      call assert_equal('dir', getftype('C:\Users\All Users'))
+    endif
+  endif
+endfunc