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-rw-r--r--src/testdir/test_largefile.vim34
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+" Tests for large files
+" This is only executed manually: "make test_largefile".
+" This is not run as part of "make test".
+
+func Test_largefile()
+ let fname = 'Xlarge.txt'
+
+ call delete(fname)
+ exe "e" fname
+ " Make sure that a line break is 1 byte (LF).
+ set ff=unix
+ set undolevels=-1
+ " Input 99 'A's. The line becomes 100 bytes including a line break.
+ exe "normal 99iA\<Esc>"
+ yank
+ " Put 39,999,999 times. The file becomes 4,000,000,000 bytes.
+ normal 39999999p
+ " Moving around in the file randomly.
+ normal G
+ normal 10%
+ normal 90%
+ normal 50%
+ normal gg
+ w
+ " Check if the file size is 4,000,000,000 bytes.
+ let fsize=getfsize(fname)
+ if has('num64')
+ call assert_true(fsize == 4000000000)
+ else
+ " getfsize() returns -2 if a Number is 32 bits.
+ call assert_true(fsize == -2)
+ endif
+ call delete(fname)
+endfunc