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diff src/testdir/test_eval_stuff.vim @ 16219:bd49e1656c72 v8.1.1114

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patch 8.1.1114: confusing overloaded operator "." for string concatenation commit https://github.com/vim/vim/commit/0f248b006c2574abc00c9aa7886d8f33620eb822 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Apr 4 15:36:05 2019 +0200 patch 8.1.1114: confusing overloaded operator "." for string concatenation Problem: Confusing overloaded operator "." for string concatenation. Solution: Add ".." for string concatenation. Also "let a ..= b".
author Bram Moolenaar <Bram@vim.org>
date Thu, 04 Apr 2019 15:45:04 +0200
parents e26caeb30026
children abb67309c1ca
line wrap: on
line diff
--- a/src/testdir/test_eval_stuff.vim
+++ b/src/testdir/test_eval_stuff.vim
@@ -94,3 +94,32 @@ func Test_let_errmsg()
   call assert_fails('let v:errmsg = []', 'E730:')
   let v:errmsg = ''
 endfunc
+
+func Test_string_concatenation()
+  call assert_equal('ab', 'a'.'b')
+  call assert_equal('ab', 'a' .'b')
+  call assert_equal('ab', 'a'. 'b')
+  call assert_equal('ab', 'a' . 'b')
+
+  call assert_equal('ab', 'a'..'b')
+  call assert_equal('ab', 'a' ..'b')
+  call assert_equal('ab', 'a'.. 'b')
+  call assert_equal('ab', 'a' .. 'b')
+
+  let a = 'a'
+  let b = 'b'
+  let a .= b
+  call assert_equal('ab', a)
+
+  let a = 'a'
+  let a.=b
+  call assert_equal('ab', a)
+
+  let a = 'a'
+  let a ..= b
+  call assert_equal('ab', a)
+
+  let a = 'a'
+  let a..=b
+  call assert_equal('ab', a)
+endfunc