Mercurial > vim
diff src/testdir/test_functions.vim @ 34620:abc7a647c83b v9.1.0199
patch 9.1.0199: Not enough tests for the slice() function
Commit: https://github.com/vim/vim/commit/ad38769030b5fa86aa0e8f1f0b4266690dfad4c9
Author: zeertzjq <zeertzjq@outlook.com>
Date: Sat Mar 23 08:23:48 2024 +0100
patch 9.1.0199: Not enough tests for the slice() function
Problem: Not enough tests for the slice() function.
Solution: Test with multibyte chars, and in both Legacy and Vim9 script.
Update docs to be clearer about how it treats composing chars.
(zeertzjq)
closes: #14275
Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Sat, 23 Mar 2024 08:30:06 +0100 |
| parents | 034445b3af10 |
| children | d4fb6ea26ae4 |
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--- a/src/testdir/test_functions.vim +++ b/src/testdir/test_functions.vim @@ -3953,4 +3953,55 @@ func Test_glob_extended_mswin() call delete('Xtestglob', 'rf') endfunc +" Tests for the slice() function. +func Test_slice() + let lines =<< trim END + call assert_equal([1, 2, 3, 4, 5], slice(range(6), 1)) + call assert_equal([2, 3, 4, 5], slice(range(6), 2)) + call assert_equal([2, 3], slice(range(6), 2, 4)) + call assert_equal([0, 1, 2, 3], slice(range(6), 0, 4)) + call assert_equal([1, 2, 3], slice(range(6), 1, 4)) + call assert_equal([1, 2, 3, 4], slice(range(6), 1, -1)) + call assert_equal([1, 2], slice(range(6), 1, -3)) + call assert_equal([1], slice(range(6), 1, -4)) + call assert_equal([], slice(range(6), 1, -5)) + call assert_equal([], slice(range(6), 1, -6)) + + call assert_equal(0z1122334455, slice(0z001122334455, 1)) + call assert_equal(0z22334455, slice(0z001122334455, 2)) + call assert_equal(0z2233, slice(0z001122334455, 2, 4)) + call assert_equal(0z00112233, slice(0z001122334455, 0, 4)) + call assert_equal(0z112233, slice(0z001122334455, 1, 4)) + call assert_equal(0z11223344, slice(0z001122334455, 1, -1)) + call assert_equal(0z1122, slice(0z001122334455, 1, -3)) + call assert_equal(0z11, slice(0z001122334455, 1, -4)) + call assert_equal(0z, slice(0z001122334455, 1, -5)) + call assert_equal(0z, slice(0z001122334455, 1, -6)) + + call assert_equal('12345', slice('012345', 1)) + call assert_equal('2345', slice('012345', 2)) + call assert_equal('23', slice('012345', 2, 4)) + call assert_equal('0123', slice('012345', 0, 4)) + call assert_equal('123', slice('012345', 1, 4)) + call assert_equal('1234', slice('012345', 1, -1)) + call assert_equal('12', slice('012345', 1, -3)) + call assert_equal('1', slice('012345', 1, -4)) + call assert_equal('', slice('012345', 1, -5)) + call assert_equal('', slice('012345', 1, -6)) + + #" Composing chars are treated as a part of the preceding base char. + call assert_equal('β̳́γ̳̂δ̳̃ε̳̄ζ̳̅', 'ὰ̳β̳́γ̳̂δ̳̃ε̳̄ζ̳̅'->slice(1)) + call assert_equal('γ̳̂δ̳̃ε̳̄ζ̳̅', 'ὰ̳β̳́γ̳̂δ̳̃ε̳̄ζ̳̅'->slice(2)) + call assert_equal('γ̳̂δ̳̃', 'ὰ̳β̳́γ̳̂δ̳̃ε̳̄ζ̳̅'->slice(2, 4)) + call assert_equal('ὰ̳β̳́γ̳̂δ̳̃', 'ὰ̳β̳́γ̳̂δ̳̃ε̳̄ζ̳̅'->slice(0, 4)) + call assert_equal('β̳́γ̳̂δ̳̃', 'ὰ̳β̳́γ̳̂δ̳̃ε̳̄ζ̳̅'->slice(1, 4)) + call assert_equal('β̳́γ̳̂δ̳̃ε̳̄', 'ὰ̳β̳́γ̳̂δ̳̃ε̳̄ζ̳̅'->slice(1, -1)) + call assert_equal('β̳́γ̳̂', 'ὰ̳β̳́γ̳̂δ̳̃ε̳̄ζ̳̅'->slice(1, -3)) + call assert_equal('β̳́', 'ὰ̳β̳́γ̳̂δ̳̃ε̳̄ζ̳̅'->slice(1, -4)) + call assert_equal('', 'ὰ̳β̳́γ̳̂δ̳̃ε̳̄ζ̳̅'->slice(1, -5)) + call assert_equal('', 'ὰ̳β̳́γ̳̂δ̳̃ε̳̄ζ̳̅'->slice(1, -6)) + END + call v9.CheckLegacyAndVim9Success(lines) +endfunc + " vim: shiftwidth=2 sts=2 expandtab