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" Tests for Unicode manipulations
source view_util.vim
" Visual block Insert adjusts for multi-byte char
func Test_visual_block_insert()
new
call setline(1, ["aaa", "あああ", "bbb"])
exe ":norm! gg0l\<C-V>jjIx\<Esc>"
call assert_equal(['axaa', 'xあああ', 'bxbb'], getline(1, '$'))
bwipeout!
endfunc
" Test for built-in function strchars()
func Test_strchars()
let inp = ["a", "あいa", "A\u20dd", "A\u20dd\u20dd", "\u20dd"]
let exp = [[1, 1, 1], [3, 3, 3], [2, 2, 1], [3, 3, 1], [1, 1, 1]]
for i in range(len(inp))
call assert_equal(exp[i][0], strchars(inp[i]))
call assert_equal(exp[i][1], inp[i]->strchars(0))
call assert_equal(exp[i][2], strchars(inp[i], 1))
endfor
endfunc
" Test for customlist completion
func CustomComplete1(lead, line, pos)
return ['あ', 'い']
endfunc
func CustomComplete2(lead, line, pos)
return ['あたし', 'あたま', 'あたりめ']
endfunc
func CustomComplete3(lead, line, pos)
return ['Nこ', 'Nん', 'Nぶ']
endfunc
func Test_customlist_completion()
command -nargs=1 -complete=customlist,CustomComplete1 Test1 echo
call feedkeys(":Test1 \<C-L>\<C-B>\"\<CR>", 'itx')
call assert_equal('"Test1 ', getreg(':'))
command -nargs=1 -complete=customlist,CustomComplete2 Test2 echo
call feedkeys(":Test2 \<C-L>\<C-B>\"\<CR>", 'itx')
call assert_equal('"Test2 あた', getreg(':'))
command -nargs=1 -complete=customlist,CustomComplete3 Test3 echo
call feedkeys(":Test3 \<C-L>\<C-B>\"\<CR>", 'itx')
call assert_equal('"Test3 N', getreg(':'))
call garbagecollect(1)
endfunc
" Yank one 3 byte character and check the mark columns.
func Test_getvcol()
new
call setline(1, "x\u2500x")
normal 0lvy
call assert_equal(2, col("'["))
call assert_equal(4, col("']"))
call assert_equal(2, virtcol("'["))
call assert_equal(2, virtcol("']"))
endfunc
func Test_list2str_str2list_utf8()
" One Unicode codepoint
let s = "\u3042\u3044"
let l = [0x3042, 0x3044]
call assert_equal(l, str2list(s, 1))
call assert_equal(s, list2str(l, 1))
if &enc ==# 'utf-8'
call assert_equal(str2list(s), str2list(s, 1))
call assert_equal(list2str(l), list2str(l, 1))
endif
" With composing characters
let s = "\u304b\u3099\u3044"
let l = [0x304b, 0x3099, 0x3044]
call assert_equal(l, str2list(s, 1))
call assert_equal(s, l->list2str(1))
if &enc ==# 'utf-8'
call assert_equal(str2list(s), str2list(s, 1))
call assert_equal(list2str(l), list2str(l, 1))
endif
" Null list is the same as an empty list
call assert_equal('', list2str([]))
call assert_equal('', list2str(test_null_list()))
endfunc
func Test_list2str_str2list_latin1()
" When 'encoding' is not multi-byte can still get utf-8 string.
" But we need to create the utf-8 string while 'encoding' is utf-8.
let s = "\u3042\u3044"
let l = [0x3042, 0x3044]
let save_encoding = &encoding
set encoding=latin1
let lres = str2list(s, 1)
let sres = list2str(l, 1)
let &encoding = save_encoding
call assert_equal(l, lres)
call assert_equal(s, sres)
endfunc
func Test_screenchar_utf8()
new
" 1-cell, with composing characters
call setline(1, ["ABC\u0308"])
redraw
call assert_equal([0x0041], screenchars(1, 1))
call assert_equal([0x0042], 1->screenchars(2))
call assert_equal([0x0043, 0x0308], screenchars(1, 3))
call assert_equal("A", screenstring(1, 1))
call assert_equal("B", screenstring(1, 2))
call assert_equal("C\u0308", screenstring(1, 3))
" 2-cells, with composing characters
let text = "\u3042\u3044\u3046\u3099"
call setline(1, text)
redraw
call assert_equal([0x3042], screenchars(1, 1))
call assert_equal([0], screenchars(1, 2))
call assert_equal([0x3044], screenchars(1, 3))
call assert_equal([0], screenchars(1, 4))
call assert_equal([0x3046, 0x3099], screenchars(1, 5))
call assert_equal("\u3042", screenstring(1, 1))
call assert_equal("", screenstring(1, 2))
call assert_equal("\u3044", screenstring(1, 3))
call assert_equal("", screenstring(1, 4))
call assert_equal("\u3046\u3099", screenstring(1, 5))
call assert_equal([text . ' '], ScreenLines(1, 8))
bwipe!
endfunc
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