mirror of
https://github.com/neovim/neovim.git
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305 lines
11 KiB
Lua
305 lines
11 KiB
Lua
local helpers = require('test.functional.helpers')(after_each)
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local lfs = require('lfs')
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local eq = helpers.eq
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local clear = helpers.clear
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local funcs = helpers.funcs
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local meths = helpers.meths
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local command = helpers.command
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local exc_exec = helpers.exc_exec
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local bufmeths = helpers.bufmeths
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local winmeths = helpers.winmeths
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local curbufmeths = helpers.curbufmeths
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local curwinmeths = helpers.curwinmeths
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local curtabmeths = helpers.curtabmeths
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local get_pathsep = helpers.get_pathsep
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local rmdir = helpers.rmdir
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local expect_err = helpers.expect_err
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local fname = 'Xtest-functional-eval-buf_functions'
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local fname2 = fname .. '.2'
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local dirname = fname .. '.d'
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before_each(clear)
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for _, func in ipairs({'bufname(%s)', 'bufnr(%s)', 'bufwinnr(%s)',
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'getbufline(%s, 1)', 'getbufvar(%s, "changedtick")',
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'setbufvar(%s, "f", 0)'}) do
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local funcname = func:match('%w+')
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describe(funcname .. '() function', function()
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it('errors out when receives v:true/v:false/v:null', function()
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-- Not compatible with Vim: in Vim it always results in buffer not found
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-- without any error messages.
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for _, var in ipairs({'v:true', 'v:false', 'v:null'}) do
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eq('Vim(call):E5300: Expected a Number or a String',
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exc_exec('call ' .. func:format(var)))
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end
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end)
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it('errors out when receives invalid argument', function()
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eq('Vim(call):E745: Expected a Number or a String, List found',
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exc_exec('call ' .. func:format('[]')))
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eq('Vim(call):E728: Expected a Number or a String, Dictionary found',
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exc_exec('call ' .. func:format('{}')))
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eq('Vim(call):E805: Expected a Number or a String, Float found',
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exc_exec('call ' .. func:format('0.0')))
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eq('Vim(call):E703: Expected a Number or a String, Funcref found',
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exc_exec('call ' .. func:format('function("tr")')))
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end)
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end)
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end
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describe('bufname() function', function()
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it('returns empty string when buffer was not found', function()
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command('file ' .. fname)
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eq('', funcs.bufname(2))
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eq('', funcs.bufname('non-existent-buffer'))
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eq('', funcs.bufname('#'))
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command('edit ' .. fname2)
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eq(2, funcs.bufnr('%'))
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eq('', funcs.bufname('X'))
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end)
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before_each(function()
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lfs.mkdir(dirname)
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end)
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after_each(function()
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rmdir(dirname)
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end)
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it('returns expected buffer name', function()
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eq('', funcs.bufname('%')) -- Buffer has no name yet
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command('file ' .. fname)
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local wd = lfs.currentdir()
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local sep = get_pathsep()
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local curdirname = funcs.fnamemodify(wd, ':t')
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for _, arg in ipairs({'%', 1, 'X', wd}) do
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eq(fname, funcs.bufname(arg))
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meths.set_current_dir('..')
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eq(curdirname .. sep .. fname, funcs.bufname(arg))
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meths.set_current_dir(curdirname)
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meths.set_current_dir(dirname)
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eq(wd .. sep .. fname, funcs.bufname(arg))
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meths.set_current_dir('..')
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eq(fname, funcs.bufname(arg))
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command('enew')
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end
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eq('', funcs.bufname('%'))
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eq('', funcs.bufname('$'))
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eq(2, funcs.bufnr('%'))
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end)
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end)
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describe('bufnr() function', function()
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it('returns -1 when buffer was not found', function()
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command('file ' .. fname)
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eq(-1, funcs.bufnr(2))
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eq(-1, funcs.bufnr('non-existent-buffer'))
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eq(-1, funcs.bufnr('#'))
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command('edit ' .. fname2)
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eq(2, funcs.bufnr('%'))
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eq(-1, funcs.bufnr('X'))
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end)
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it('returns expected buffer number', function()
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eq(1, funcs.bufnr('%'))
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command('file ' .. fname)
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local wd = lfs.currentdir()
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local curdirname = funcs.fnamemodify(wd, ':t')
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eq(1, funcs.bufnr(fname))
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eq(1, funcs.bufnr(wd))
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eq(1, funcs.bufnr(curdirname))
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eq(1, funcs.bufnr('X'))
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end)
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it('returns number of last buffer with "$"', function()
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eq(1, funcs.bufnr('$'))
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command('new')
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eq(2, funcs.bufnr('$'))
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command('new')
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eq(3, funcs.bufnr('$'))
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command('only')
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eq(3, funcs.bufnr('$'))
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eq(3, funcs.bufnr('%'))
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command('buffer 1')
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eq(3, funcs.bufnr('$'))
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eq(1, funcs.bufnr('%'))
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command('bwipeout 2')
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eq(3, funcs.bufnr('$'))
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eq(1, funcs.bufnr('%'))
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command('bwipeout 3')
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eq(1, funcs.bufnr('$'))
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eq(1, funcs.bufnr('%'))
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command('new')
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eq(4, funcs.bufnr('$'))
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end)
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end)
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describe('bufwinnr() function', function()
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it('returns -1 when buffer was not found', function()
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command('file ' .. fname)
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eq(-1, funcs.bufwinnr(2))
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eq(-1, funcs.bufwinnr('non-existent-buffer'))
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eq(-1, funcs.bufwinnr('#'))
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command('split ' .. fname2) -- It would be OK if there was one window
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eq(2, funcs.bufnr('%'))
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eq(-1, funcs.bufwinnr('X'))
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end)
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before_each(function()
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lfs.mkdir(dirname)
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end)
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after_each(function()
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rmdir(dirname)
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end)
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it('returns expected window number', function()
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eq(1, funcs.bufwinnr('%'))
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command('file ' .. fname)
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command('vsplit')
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command('split ' .. fname2)
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eq(2, funcs.bufwinnr(fname))
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eq(1, funcs.bufwinnr(fname2))
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eq(-1, funcs.bufwinnr(fname:sub(1, #fname - 1)))
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meths.set_current_dir(dirname)
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eq(2, funcs.bufwinnr(fname))
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eq(1, funcs.bufwinnr(fname2))
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eq(-1, funcs.bufwinnr(fname:sub(1, #fname - 1)))
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eq(1, funcs.bufwinnr('%'))
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eq(2, funcs.bufwinnr(1))
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eq(1, funcs.bufwinnr(2))
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eq(-1, funcs.bufwinnr(3))
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eq(1, funcs.bufwinnr('$'))
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end)
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end)
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describe('getbufline() function', function()
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it('returns empty list when buffer was not found', function()
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command('file ' .. fname)
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eq({}, funcs.getbufline(2, 1))
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eq({}, funcs.getbufline('non-existent-buffer', 1))
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eq({}, funcs.getbufline('#', 1))
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command('edit ' .. fname2)
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eq(2, funcs.bufnr('%'))
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eq({}, funcs.getbufline('X', 1))
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end)
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it('returns empty list when range is invalid', function()
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eq({}, funcs.getbufline(1, 0))
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curbufmeths.set_lines(0, 1, false, {'foo', 'bar', 'baz'})
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eq({}, funcs.getbufline(1, 2, 1))
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eq({}, funcs.getbufline(1, -10, -20))
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eq({}, funcs.getbufline(1, -2, -1))
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eq({}, funcs.getbufline(1, -1, 9999))
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end)
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it('returns expected lines', function()
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meths.set_option('hidden', true)
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command('file ' .. fname)
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curbufmeths.set_lines(0, 1, false, {'foo\0', '\0bar', 'baz'})
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command('edit ' .. fname2)
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curbufmeths.set_lines(0, 1, false, {'abc\0', '\0def', 'ghi'})
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eq({'foo\n', '\nbar', 'baz'}, funcs.getbufline(1, 1, 9999))
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eq({'abc\n', '\ndef', 'ghi'}, funcs.getbufline(2, 1, 9999))
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eq({'foo\n', '\nbar', 'baz'}, funcs.getbufline(1, 1, '$'))
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eq({'baz'}, funcs.getbufline(1, '$', '$'))
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eq({'baz'}, funcs.getbufline(1, '$', 9999))
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end)
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end)
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describe('getbufvar() function', function()
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it('returns empty list when buffer was not found', function()
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command('file ' .. fname)
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eq('', funcs.getbufvar(2, '&autoindent'))
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eq('', funcs.getbufvar('non-existent-buffer', '&autoindent'))
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eq('', funcs.getbufvar('#', '&autoindent'))
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command('edit ' .. fname2)
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eq(2, funcs.bufnr('%'))
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eq('', funcs.getbufvar('X', '&autoindent'))
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end)
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it('returns empty list when variable/option/etc was not found', function()
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command('file ' .. fname)
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eq('', funcs.getbufvar(1, '&autondent'))
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eq('', funcs.getbufvar(1, 'changedtic'))
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end)
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it('returns expected option value', function()
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eq(0, funcs.getbufvar(1, '&autoindent'))
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eq(0, funcs.getbufvar(1, '&l:autoindent'))
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eq(0, funcs.getbufvar(1, '&g:autoindent'))
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-- Also works with global-only options
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eq(0, funcs.getbufvar(1, '&hidden'))
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eq(0, funcs.getbufvar(1, '&l:hidden'))
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eq(0, funcs.getbufvar(1, '&g:hidden'))
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-- Also works with window-local options
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eq(0, funcs.getbufvar(1, '&number'))
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eq(0, funcs.getbufvar(1, '&l:number'))
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eq(0, funcs.getbufvar(1, '&g:number'))
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command('new')
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-- But with window-local options it probably does not what you expect
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curwinmeths.set_option('number', true)
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-- (note that current window’s buffer is 2, but getbufvar() receives 1)
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eq(2, bufmeths.get_number(curwinmeths.get_buf()))
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eq(1, funcs.getbufvar(1, '&number'))
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eq(1, funcs.getbufvar(1, '&l:number'))
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-- You can get global value though, if you find this useful.
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eq(0, funcs.getbufvar(1, '&g:number'))
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end)
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it('returns expected variable value', function()
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eq(2, funcs.getbufvar(1, 'changedtick'))
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curbufmeths.set_lines(0, 1, false, {'abc\0', '\0def', 'ghi'})
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eq(3, funcs.getbufvar(1, 'changedtick'))
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curbufmeths.set_var('test', true)
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eq(true, funcs.getbufvar(1, 'test'))
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eq({test=true, changedtick=3}, funcs.getbufvar(1, ''))
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command('new')
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eq(3, funcs.getbufvar(1, 'changedtick'))
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eq(true, funcs.getbufvar(1, 'test'))
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eq({test=true, changedtick=3}, funcs.getbufvar(1, ''))
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end)
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end)
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describe('setbufvar() function', function()
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it('throws the error or ignores the input when buffer was not found', function()
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command('file ' .. fname)
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eq(0,
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exc_exec('call setbufvar(2, "&autoindent", 0)'))
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eq('Vim(call):E94: No matching buffer for non-existent-buffer',
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exc_exec('call setbufvar("non-existent-buffer", "&autoindent", 0)'))
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eq(0,
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exc_exec('call setbufvar("#", "&autoindent", 0)'))
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command('edit ' .. fname2)
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eq(2, funcs.bufnr('%'))
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eq('Vim(call):E93: More than one match for X',
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exc_exec('call setbufvar("X", "&autoindent", 0)'))
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end)
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it('may set options, including window-local and global values', function()
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local buf1 = meths.get_current_buf()
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eq(false, curwinmeths.get_option('number'))
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command('split')
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command('new')
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eq(2, bufmeths.get_number(curwinmeths.get_buf()))
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funcs.setbufvar(1, '&number', true)
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local windows = curtabmeths.list_wins()
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eq(false, winmeths.get_option(windows[1], 'number'))
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eq(true, winmeths.get_option(windows[2], 'number'))
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eq(false, winmeths.get_option(windows[3], 'number'))
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eq(false, winmeths.get_option(meths.get_current_win(), 'number'))
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eq(false, meths.get_option('hidden'))
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funcs.setbufvar(1, '&hidden', true)
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eq(true, meths.get_option('hidden'))
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eq(false, bufmeths.get_option(buf1, 'autoindent'))
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funcs.setbufvar(1, '&autoindent', true)
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eq(true, bufmeths.get_option(buf1, 'autoindent'))
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eq('Vim(call):E355: Unknown option: xxx',
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exc_exec('call setbufvar(1, "&xxx", 0)'))
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end)
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it('may set variables', function()
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local buf1 = meths.get_current_buf()
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command('split')
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command('new')
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eq(2, curbufmeths.get_number())
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funcs.setbufvar(1, 'number', true)
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eq(true, bufmeths.get_var(buf1, 'number'))
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eq('Vim(call):E461: Illegal variable name: b:',
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exc_exec('call setbufvar(1, "", 0)'))
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eq(true, bufmeths.get_var(buf1, 'number'))
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expect_err('Vim:E46: Cannot change read%-only variable "b:changedtick"',
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funcs.setbufvar, 1, 'changedtick', true)
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eq(2, funcs.getbufvar(1, 'changedtick'))
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end)
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end)
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