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" Test that doing (reversible) changes in insert mode or normal mode to a

" buffer do not alter their folding.

" Load sample python file.

read ./test_python_sample_code/algorithms.py

" Delete the first line (which is not present in the original file) and save

" loaded file.

execute "normal! gg"

execute "normal! dd"

noautocmd write!

" Load auxiliary code.

source ./test_helpers_vimscript/inserting_text.vim

source ./test_helpers_vimscript/md5sum.vim

" Get original md5sum for script.

noautocmd write!

call Md5()

let s:md5orig = b:calculated_md5

unlet b:calculated_md5

" Define a convenient function to map line numbers to their folding values.

function Pymodefoldingfuncref(key, val)

let l:retval = pymode#folding#expr(a:val)

return l:retval

endfunction!

" Force recomputation of all foldings.

" TODO: inspect why causes trouble.

" set fdm=expr

" set fdm=marker

" set fdm=expr

let b:old_fold_vals = map(range(1, line('$')), function('Pymodefoldingfuncref'))

" Change folding in numerous ways.

call InsertTextAtRandomPositions(10)

" Force recomputation of all foldings.

" set fdm=expr

" set fdm=marker

" set fdm=expr

let b:new_fold_vals = map(range(1, line('$')), function('Pymodefoldingfuncref'))

" Get original md5sum for script.

noautocmd write!

call Md5()

let s:md5mod = b:calculated_md5

unlet b:calculated_md5

" echom s:md5orig == s:md5mod

" echom b:new_fold_vals == b:old_fold_vals

" set fdm=expr

" set fdm=marker

" set fdm=expr

" Assert changes.

call assert_equal(s:md5orig, s:md5mod)

call assert_equal(b:new_fold_vals, b:old_fold_vals)

if len(v:errors) > 0

cquit!

else

quit!

endif