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patch 8.1.1554: docs and tests for :const can be improved

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Problem:    Docs and tests for :const can be improved.
Solution:   Improve documentation, add a few more tests. (Ryuichi Hayashida,
            closes #4551)
This commit is contained in:
Bram Moolenaar
2019-06-16 15:41:58 +02:00
parent dc2ce58b5a
commit 1c196e7b17
3 changed files with 34 additions and 3 deletions
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26
src/testdir/test_const.vim
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@@ -21,6 +21,21 @@ func Test_define_var_with_lock()
hello
EOS
call assert_true(exists('i'))
call assert_true(exists('f'))
call assert_true(exists('s'))
call assert_true(exists('F'))
call assert_true(exists('l'))
call assert_true(exists('d'))
if has('channel')
call assert_true(exists('j'))
call assert_true(exists('c'))
endif
call assert_true(exists('b'))
call assert_true(exists('n'))
call assert_true(exists('bl'))
call assert_true(exists('here'))
call assert_fails('let i = 1', 'E741:')
call assert_fails('let f = 1.1', 'E741:')
call assert_fails('let s = "vim"', 'E741:')
@@ -218,6 +233,17 @@ func Test_const_with_special_variables()
call assert_fails('const &g:encoding = "utf-8"', 'E996:')
endfunc
func Test_const_with_eval_name()
let s = 'foo'
" eval name with :const should work
const abc_{s} = 1
const {s}{s} = 1
let s2 = 'abc_foo'
call assert_fails('const {s2} = "bar"', 'E995:')
endfunc
func Test_lock_depth_is_1()
const l = [1, 2, 3]
const d = {'foo': 10}