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Before:
function! ParseHighlight(name) abort
redir => l:output
silent execute 'highlight ' . a:name
redir end
return join(split(l:output)[2:])
endfunction
function! SetHighlight(name, syntax) abort
let l:match = matchlist(a:syntax, '\vlinks to (.+)$')
if !empty(l:match)
execute 'highlight link ' . a:name . ' ' . l:match[1]
else
execute 'highlight ' . a:name . ' ' a:syntax
endif
endfunction
let g:sign_highlight = ParseHighlight('SignColumn')
After:
delfunction ParseHighlight
call SetHighlight('SignColumn', g:sign_highlight)
delfunction SetHighlight
unlet! g:sign_highlight
Execute(The SignColumn highlight should be set and reset):
call ale#sign#SetSignColumnHighlight(1)
AssertEqual 'links to ALESignColumnWithErrors', ParseHighlight('SignColumn')
call ale#sign#SetSignColumnHighlight(0)
AssertEqual 'links to ALESignColumnWithoutErrors', ParseHighlight('SignColumn')
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