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" Tests for ":highlight".
func Test_highlight()
" basic test if ":highlight" doesn't crash
highlight
hi Search
" test setting colors.
" test clearing one color and all doesn't generate error or warning
silent! hi NewGroup term=bold cterm=italic ctermfg=DarkBlue ctermbg=Grey gui= guifg=#00ff00 guibg=Cyan
silent! hi Group2 term= cterm=
hi Group3 term=underline cterm=bold
let res = split(execute("hi NewGroup"), "\n")[0]
" filter ctermfg and ctermbg, the numbers depend on the terminal
let res = substitute(res, 'ctermfg=\d*', 'ctermfg=2', '')
let res = substitute(res, 'ctermbg=\d*', 'ctermbg=3', '')
call assert_equal("NewGroup xxx term=bold cterm=italic ctermfg=2 ctermbg=3",
\ res)
call assert_equal("Group2 xxx cleared",
\ split(execute("hi Group2"), "\n")[0])
call assert_equal("Group3 xxx term=underline cterm=bold",
\ split(execute("hi Group3"), "\n")[0])
hi clear NewGroup
call assert_equal("NewGroup xxx cleared",
\ split(execute("hi NewGroup"), "\n")[0])
call assert_equal("Group2 xxx cleared",
\ split(execute("hi Group2"), "\n")[0])
hi Group2 NONE
call assert_equal("Group2 xxx cleared",
\ split(execute("hi Group2"), "\n")[0])
hi clear
call assert_equal("Group3 xxx cleared",
\ split(execute("hi Group3"), "\n")[0])
call assert_fails("hi Crash term='asdf", "E475:")
endfunc
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