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local helpers = require('test.functional.helpers')(after_each)
local clear = helpers.clear
local eq = helpers.eq
local funcs = helpers.funcs
local exc_exec = helpers.exc_exec
local read_file = helpers.read_file
local fname = 'Xtest-functional-eval-writefile'
before_each(clear)
after_each(function() os.remove(fname) end)
describe('writefile()', function()
it('writes empty list to a file', function()
eq(nil, read_file(fname))
eq(0, funcs.writefile({}, fname))
eq('', read_file(fname))
os.remove(fname)
eq(nil, read_file(fname))
eq(0, funcs.writefile({}, fname, 'b'))
eq('', read_file(fname))
os.remove(fname)
eq(nil, read_file(fname))
eq(0, funcs.writefile({}, fname, 'ab'))
eq('', read_file(fname))
os.remove(fname)
eq(nil, read_file(fname))
eq(0, funcs.writefile({}, fname, 'a'))
eq('', read_file(fname))
end)
it('writes list with an empty string to a file', function()
eq(0, exc_exec(
('call writefile([$XXX_NONEXISTENT_VAR_XXX], "%s", "b")'):format(
fname)))
eq('', read_file(fname))
eq(0, exc_exec(('call writefile([$XXX_NONEXISTENT_VAR_XXX], "%s")'):format(
fname)))
eq('\n', read_file(fname))
end)
it('appends to a file', function()
eq(nil, read_file(fname))
eq(0, funcs.writefile({'abc', 'def', 'ghi'}, fname))
eq('abc\ndef\nghi\n', read_file(fname))
eq(0, funcs.writefile({'jkl'}, fname, 'a'))
eq('abc\ndef\nghi\njkl\n', read_file(fname))
os.remove(fname)
eq(nil, read_file(fname))
eq(0, funcs.writefile({'abc', 'def', 'ghi'}, fname, 'b'))
eq('abc\ndef\nghi', read_file(fname))
eq(0, funcs.writefile({'jkl'}, fname, 'ab'))
eq('abc\ndef\nghijkl', read_file(fname))
end)
it('correctly treats NLs', function()
eq(0, funcs.writefile({'\na\nb\n'}, fname, 'b'))
eq('\0a\0b\0', read_file(fname))
eq(0, funcs.writefile({'a\n\n\nb'}, fname, 'b'))
eq('a\0\0\0b', read_file(fname))
end)
it('correctly overwrites file', function()
eq(0, funcs.writefile({'\na\nb\n'}, fname, 'b'))
eq('\0a\0b\0', read_file(fname))
eq(0, funcs.writefile({'a\n'}, fname, 'b'))
eq('a\0', read_file(fname))
end)
it('errors out with invalid arguments', function()
eq('Vim(call):E119: Not enough arguments for function: writefile',
exc_exec('call writefile()'))
eq('Vim(call):E119: Not enough arguments for function: writefile',
exc_exec('call writefile([])'))
eq('Vim(call):E118: Too many arguments for function: writefile',
exc_exec(('call writefile([], "%s", "b", 1)'):format(fname)))
for _, arg in ipairs({'0', '0.0', 'function("tr")', '{}', '"test"'}) do
eq('Vim(call):E686: Argument of writefile() must be a List',
exc_exec(('call writefile(%s, "%s", "b")'):format(arg, fname)))
end
for _, args in ipairs({'%s, "b"', '"' .. fname .. '", %s'}) do
eq('Vim(call):E806: using Float as a String',
exc_exec(('call writefile([], %s)'):format(args:format('0.0'))))
eq('Vim(call):E730: using List as a String',
exc_exec(('call writefile([], %s)'):format(args:format('[]'))))
eq('Vim(call):E731: using Dictionary as a String',
exc_exec(('call writefile([], %s)'):format(args:format('{}'))))
eq('Vim(call):E729: using Funcref as a String',
exc_exec(('call writefile([], %s)'):format(args:format('function("tr")'))))
end
end)
end)
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