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" Test :retab
func SetUp()
new
call setline(1, "\ta \t b c ")
endfunc
func TearDown()
bwipe!
endfunc
func Retab(bang, n, subopt='', test_line='')
let l:old_tabstop = &tabstop
let l:old_line = getline(1)
if a:test_line != ''
call setline(1, a:test_line)
endif
exe "retab" . a:bang . ' ' . a:subopt . ' ' . a:n
let l:line = getline(1)
call setline(1, l:old_line)
if a:n > 0
" :retab changes 'tabstop' to n with argument n > 0.
call assert_equal(a:n, &tabstop)
exe 'set tabstop=' . l:old_tabstop
else
" :retab does not change 'tabstop' with empty or n <= 0.
call assert_equal(l:old_tabstop, &tabstop)
endif
return l:line
endfunc
func Test_retab()
set tabstop=8 noexpandtab
call assert_equal("\ta\t b c ", Retab('', ''))
call assert_equal("\ta\t b c ", Retab('', 0))
call assert_equal("\ta\t b c ", Retab('', 8))
call assert_equal("\ta\t b\t c\t ", Retab('!', ''))
call assert_equal("\ta\t b\t c\t ", Retab('!', 0))
call assert_equal("\ta\t b\t c\t ", Retab('!', 8))
call assert_equal("\t\ta\t\t\tb c ", Retab('', 4))
call assert_equal("\t\ta\t\t\tb\t\t c\t ", Retab('!', 4))
call assert_equal(" a\t\tb c ", Retab('', 10))
call assert_equal(" a\t\tb c ", Retab('!', 10))
set tabstop=8 expandtab
call assert_equal(" a b c ", Retab('', ''))
call assert_equal(" a b c ", Retab('', 0))
call assert_equal(" a b c ", Retab('', 8))
call assert_equal(" a b c ", Retab('!', ''))
call assert_equal(" a b c ", Retab('!', 0))
call assert_equal(" a b c ", Retab('!', 8))
call assert_equal(" a b c ", Retab(' ', 4))
call assert_equal(" a b c ", Retab('!', 4))
call assert_equal(" a b c ", Retab(' ', 10))
call assert_equal(" a b c ", Retab('!', 10))
set tabstop=4 noexpandtab
call assert_equal("\ta\t\tb c ", Retab('', ''))
call assert_equal("\ta\t\tb\t\t c\t ", Retab('!', ''))
call assert_equal("\t a\t\t\tb c ", Retab('', 3))
call assert_equal("\t a\t\t\tb\t\t\tc\t ", Retab('!', 3))
call assert_equal(" a\t b c ", Retab('', 5))
call assert_equal(" a\t b\t\t c\t ", Retab('!', 5))
set tabstop=4 expandtab
call assert_equal(" a b c ", Retab('', ''))
call assert_equal(" a b c ", Retab('!', ''))
call assert_equal(" a b c ", Retab('', 3))
call assert_equal(" a b c ", Retab('!', 3))
call assert_equal(" a b c ", Retab('', 5))
call assert_equal(" a b c ", Retab('!', 5))
" Test with '-indentonly'
let so='-indentonly'
set tabstop=8 noexpandtab
call assert_equal("\ta \t b c ", Retab('', '', so))
call assert_equal("\ta \t b c ", Retab('', 0, so))
call assert_equal("\ta \t b c ", Retab('', 8, so))
call assert_equal("\ta \t b c ", Retab('!', '', so))
call assert_equal("\ta \t b c ", Retab('!', 0, so))
call assert_equal("\ta \t b c ", Retab('!', 8, so))
call assert_equal("\t\ta \t b c ", Retab('', 4, so))
call assert_equal("\t\ta \t b c ", Retab('!', 4, so))
call assert_equal(" a \t b c ", Retab('', 10, so))
call assert_equal(" a \t b c ", Retab('!', 10, so))
set tabstop=8 expandtab
call assert_equal(" a \t b c ", Retab('', '', so))
call assert_equal(" a \t b c ", Retab('', 0, so))
call assert_equal(" a \t b c ", Retab('', 8, so))
call assert_equal(" a \t b c ", Retab('!', '', so))
call assert_equal(" a \t b c ", Retab('!', 0, so))
call assert_equal(" a \t b c ", Retab('!', 8, so))
call assert_equal(" a \t b c ", Retab(' ', 4, so))
call assert_equal(" a \t b c ", Retab('!', 4, so))
call assert_equal(" a \t b c ", Retab(' ', 10, so))
call assert_equal(" a \t b c ", Retab('!', 10, so))
set tabstop=4 noexpandtab
call assert_equal("\ta \t b c ", Retab('', '', so))
call assert_equal("\ta \t b c ", Retab('!', '', so))
call assert_equal("\t a \t b c ", Retab('', 3, so))
call assert_equal("\t a \t b c ", Retab('!', 3, so))
call assert_equal(" a \t b c ", Retab('', 5, so))
call assert_equal(" a \t b c ", Retab('!', 5, so))
set tabstop=4 expandtab
call assert_equal(" a \t b c ", Retab('', '', so))
call assert_equal(" a \t b c ", Retab('!', '', so))
call assert_equal(" a \t b c ", Retab('', 3, so))
call assert_equal(" a \t b c ", Retab('!', 3, so))
call assert_equal(" a \t b c ", Retab('', 5, so))
call assert_equal(" a \t b c ", Retab('!', 5, so))
" Test for variations in leading whitespace
let so='-indentonly'
let test_line=" \t a\t "
set tabstop=8 noexpandtab
call assert_equal("\t a\t ", Retab('', '', so, test_line))
call assert_equal("\t a\t ", Retab('!', '', so, test_line))
set tabstop=8 expandtab
call assert_equal(" a\t ", Retab('', '', so, test_line))
call assert_equal(" a\t ", Retab('!', '', so, test_line))
let test_line=" a\t "
set tabstop=8 noexpandtab
call assert_equal(test_line, Retab('', '', so, test_line))
call assert_equal("\t a\t ", Retab('!', '', so, test_line))
set tabstop=8 expandtab
call assert_equal(test_line, Retab('', '', so, test_line))
call assert_equal(test_line, Retab('!', '', so, test_line))
set tabstop& expandtab&
endfunc
func Test_retab_error()
call assert_fails('retab -1', 'E487:')
call assert_fails('retab! -1', 'E487:')
call assert_fails('ret -1000', 'E487:')
call assert_fails('ret 10000', 'E475:')
call assert_fails('ret 80000000000000000000', 'E475:')
call assert_fails('retab! -in', 'E475:')
call assert_fails('retab! -indentonly2', 'E475:')
call assert_fails('retab! -indentonlyx 0', 'E475:')
endfunc
func RetabLoop()
while 1
set ts=4000
retab 4
endwhile
endfunc
func Test_retab_endless()
" inside try/catch we can catch the error message
call setline(1, "\t0\t")
let caught = 'no'
try
call RetabLoop()
catch /E1240:/
let caught = v:exception
endtry
call assert_match('E1240:', caught)
set tabstop&
endfunc
func Test_nocatch_retab_endless()
" when not inside try/catch an interrupt is generated to get out of loops
call setline(1, "\t0\t")
call assert_fails('call RetabLoop()', ['E1240:', 'Interrupted'])
set tabstop&
endfunc
" mnv: shiftwidth=2 sts=2 expandtab
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