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source shared.vim
func TablineWithCaughtError()
let s:func_in_tabline_called = 1
try
call eval('unknown expression')
catch
endtry
return ''
endfunc
func TablineWithError()
let s:func_in_tabline_called = 1
call eval('unknown expression')
return ''
endfunc
func Test_caught_error_in_tabline()
if has('gui')
set guioptions-=e
endif
let showtabline_save = &showtabline
set showtabline=2
let s:func_in_tabline_called = 0
let tabline = '%{TablineWithCaughtError()}'
let &tabline = tabline
redraw!
call assert_true(s:func_in_tabline_called)
call assert_equal(tabline, &tabline)
set tabline=
let &showtabline = showtabline_save
endfunc
func Test_tabline_will_be_disabled_with_error()
if has('gui')
set guioptions-=e
endif
let showtabline_save = &showtabline
set showtabline=2
let s:func_in_tabline_called = 0
let tabline = '%{TablineWithError()}'
try
let &tabline = tabline
redraw!
catch
endtry
call assert_true(s:func_in_tabline_called)
call assert_equal('', &tabline)
set tabline=
let &showtabline = showtabline_save
endfunc
func Test_redrawtabline()
if has('gui')
set guioptions-=e
endif
let showtabline_save = &showtabline
set showtabline=2
set tabline=%{bufnr('$')}
edit Xtabline1
edit Xtabline2
redraw
call assert_match(bufnr('$') . '', Screenline(1))
au BufAdd * redrawtabline
badd Xtabline3
call assert_match(bufnr('$') . '', Screenline(1))
set tabline=
let &showtabline = showtabline_save
au! Bufadd
endfunc
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