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" Tests for case-insensitive UTF-8 comparisons (utf_strnicmp() in mbyte.c)
" Also test "g~ap".
func Ch(a, op, b, expected)
call assert_equal(eval(printf('"%s" %s "%s"', a:a, a:op, a:b)), a:expected,
\ printf('"%s" %s "%s" should return %d', a:a, a:op, a:b, a:expected))
endfunc
func Chk(a, b, result)
if a:result == 0
call Ch(a:a, '==?', a:b, 1)
call Ch(a:a, '!=?', a:b, 0)
call Ch(a:a, '<=?', a:b, 1)
call Ch(a:a, '>=?', a:b, 1)
call Ch(a:a, '<?', a:b, 0)
call Ch(a:a, '>?', a:b, 0)
elseif a:result > 0
call Ch(a:a, '==?', a:b, 0)
call Ch(a:a, '!=?', a:b, 1)
call Ch(a:a, '<=?', a:b, 0)
call Ch(a:a, '>=?', a:b, 1)
call Ch(a:a, '<?', a:b, 0)
call Ch(a:a, '>?', a:b, 1)
else
call Ch(a:a, '==?', a:b, 0)
call Ch(a:a, '!=?', a:b, 1)
call Ch(a:a, '<=?', a:b, 1)
call Ch(a:a, '>=?', a:b, 0)
call Ch(a:a, '<?', a:b, 1)
call Ch(a:a, '>?', a:b, 0)
endif
endfunc
func Check(a, b, result)
call Chk(a:a, a:b, a:result)
call Chk(a:b, a:a, -a:result)
endfunc
func LT(a, b)
call Check(a:a, a:b, -1)
endfunc
func GT(a, b)
call Check(a:a, a:b, 1)
endfunc
func EQ(a, b)
call Check(a:a, a:b, 0)
endfunc
func Test_comparisons()
call EQ('', '')
call LT('', 'a')
call EQ('abc', 'abc')
call EQ('Abc', 'abC')
call LT('ab', 'abc')
call LT('AB', 'abc')
call LT('ab', 'aBc')
call EQ('\xd0\xb9\xd1\x86\xd1\x83\xd0\xba\xd0\xb5\xd0\xbd', '\xd0\xb9\xd0\xa6\xd0\xa3\xd0\xba\xd0\x95\xd0\xbd')
call LT('\xd0\xb9\xd1\x86\xd1\x83\xd0\xba\xd0\xb5\xd0\xbd', '\xd0\xaf\xd1\x86\xd1\x83\xd0\xba\xd0\xb5\xd0\xbd')
call EQ('\xe2\x84\xaa', 'k')
call LT('\xe2\x84\xaa', 'kkkkkk')
call EQ('\xe2\x84\xaa\xe2\x84\xaa\xe2\x84\xaa', 'kkk')
call LT('kk', '\xe2\x84\xaa\xe2\x84\xaa\xe2\x84\xaa')
call EQ('\xe2\x84\xaa\xe2\x84\xa6k\xe2\x84\xaak\xcf\x89', 'k\xcf\x89\xe2\x84\xaakk\xe2\x84\xa6')
call EQ('Abc\x80', 'AbC\x80')
call LT('Abc\x80', 'AbC\x81')
call LT('Abc', 'AbC\x80')
call LT('abc\x80DEF', 'abc\x80def') " case folding stops at the first bad character
call LT('\xc3XYZ', '\xc3xyz')
call EQ('\xef\xbc\xba', '\xef\xbd\x9a') " FF3A (upper), FF5A (lower)
call GT('\xef\xbc\xba', '\xef\xbc\xff') " first string is ok and equals \xef\xbd\x9a after folding, second string is illegal and was left unchanged, then the strings were bytewise compared
call LT('\xc3', '\xc3\x83')
call EQ('\xc3\xa3xYz', '\xc3\x83XyZ')
for n in range(0x60, 0xFF)
call LT(printf('xYz\x%.2X', n-1), printf('XyZ\x%.2X', n))
endfor
for n in range(0x80, 0xBF)
call EQ(printf('xYz\xc2\x%.2XUvW', n), printf('XyZ\xc2\x%.2XuVw', n))
endfor
for n in range(0xC0, 0xFF)
call LT(printf('xYz\xc2\x%.2XUvW', n), printf('XyZ\xc2\x%.2XuVw', n))
endfor
endfunc
" test that g~ap changes one paragraph only.
func Test_gap()
new
call feedkeys("iabcd\n\ndefggg0g~ap", "tx")
call assert_equal(["ABCD", "", "defg"], getline(1,3))
endfunc
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