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patch 8.0.0351: no test for concatenating an empty string

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Problem:    No test for concatenating an empty string that results from out of
            bounds indexing.
Solution:   Add a simple test.
This commit is contained in:
Bram Moolenaar
2017-02-23 13:50:38 +01:00
parent ae177b7166
commit 218426896c
2 changed files with 7 additions and 0 deletions
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5
src/testdir/test_expr.vim
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@@ -473,3 +473,8 @@ func Test_setmatches()
call setmatches(set)
call assert_equal(exp, getmatches())
endfunc
func Test_empty_concatenate()
call assert_equal('b', 'a'[4:0] . 'b')
call assert_equal('b', 'b' . 'a'[4:0])
endfunc