diff options
| -rw-r--r-- | test/functional/eval/buf_functions_spec.lua | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/test/functional/eval/buf_functions_spec.lua b/test/functional/eval/buf_functions_spec.lua new file mode 100644 index 0000000000..a130da4452 --- /dev/null +++ b/test/functional/eval/buf_functions_spec.lua @@ -0,0 +1,300 @@ +local helpers = require('test.functional.helpers')(after_each) + +local lfs = require('lfs') + +local eq = helpers.eq +local clear = helpers.clear +local funcs = helpers.funcs +local meths = helpers.meths +local command = helpers.command +local exc_exec = helpers.exc_exec +local bufmeths = helpers.bufmeths +local winmeths = helpers.winmeths +local curbufmeths = helpers.curbufmeths +local curwinmeths = helpers.curwinmeths +local curtabmeths = helpers.curtabmeths + +local fname = 'Xtest-functional-eval-buf_functions' +local fname2 = fname .. '.2' +local dirname = fname .. '.d' + +before_each(clear) + +for _, func in ipairs({'bufname(%s)', 'bufnr(%s)', 'bufwinnr(%s)', + 'getbufline(%s, 1)', 'getbufvar(%s, "changedtick")', + 'setbufvar(%s, "f", 0)'}) do + local funcname = func:match('%w+') + describe(funcname .. '() function', function() + it('errors out when receives v:true/v:false/v:null', function() + -- Not compatible with Vim: in Vim it always results in buffer not found + -- without any error messages. + for _, var in ipairs({'v:true', 'v:false', 'v:null'}) do + eq('Vim(call):E5300: Expected a Number or a String', + exc_exec('call ' .. func:format(var))) + end + end) + it('errors out when receives invalid argument', function() + eq('Vim(call):E745: Expected a Number or a String, List found', + exc_exec('call ' .. func:format('[]'))) + eq('Vim(call):E728: Expected a Number or a String, Dictionary found', + exc_exec('call ' .. func:format('{}'))) + eq('Vim(call):E805: Expected a Number or a String, Float found', + exc_exec('call ' .. func:format('0.0'))) + eq('Vim(call):E703: Expected a Number or a String, Funcref found', + exc_exec('call ' .. func:format('function("tr")'))) + end) + end) +end + +describe('bufname() function', function() + it('returns empty string when buffer was not found', function() + command('file ' .. fname) + eq('', funcs.bufname(2)) + eq('', funcs.bufname('non-existent-buffer')) + eq('', funcs.bufname('#')) + command('edit ' .. fname2) + eq(2, funcs.bufnr('%')) + eq('', funcs.bufname('X')) + end) + before_each(function() + lfs.mkdir(dirname) + end) + after_each(function() + lfs.rmdir(dirname) + end) + it('returns expected buffer name', function() + eq('', funcs.bufname('%')) -- Buffer has no name yet + command('file ' .. fname) + local wd = lfs.currentdir() + local curdirname = funcs.fnamemodify(wd, ':t') + for _, arg in ipairs({'%', 1, 'X', wd}) do + eq(fname, funcs.bufname(arg)) + meths.set_current_dir('..') + eq(curdirname .. '/' .. fname, funcs.bufname(arg)) + meths.set_current_dir(curdirname) + meths.set_current_dir(dirname) + eq(wd .. '/' .. fname, funcs.bufname(arg)) + meths.set_current_dir('..') + eq(fname, funcs.bufname(arg)) + command('enew') + end + eq('', funcs.bufname('%')) + eq('', funcs.bufname('$')) + eq(2, funcs.bufnr('%')) + end) +end) + +describe('bufnr() function', function() + it('returns -1 when buffer was not found', function() + command('file ' .. fname) + eq(-1, funcs.bufnr(2)) + eq(-1, funcs.bufnr('non-existent-buffer')) + eq(-1, funcs.bufnr('#')) + command('edit ' .. fname2) + eq(2, funcs.bufnr('%')) + eq(-1, funcs.bufnr('X')) + end) + it('returns expected buffer number', function() + eq(1, funcs.bufnr('%')) + command('file ' .. fname) + local wd = lfs.currentdir() + local curdirname = funcs.fnamemodify(wd, ':t') + eq(1, funcs.bufnr(fname)) + eq(1, funcs.bufnr(wd)) + eq(1, funcs.bufnr(curdirname)) + eq(1, funcs.bufnr('X')) + end) + it('returns number of last buffer with "$"', function() + eq(1, funcs.bufnr('$')) + command('new') + eq(2, funcs.bufnr('$')) + command('new') + eq(3, funcs.bufnr('$')) + command('only') + eq(3, funcs.bufnr('$')) + eq(3, funcs.bufnr('%')) + command('buffer 1') + eq(3, funcs.bufnr('$')) + eq(1, funcs.bufnr('%')) + command('bwipeout 2') + eq(3, funcs.bufnr('$')) + eq(1, funcs.bufnr('%')) + command('bwipeout 3') + eq(1, funcs.bufnr('$')) + eq(1, funcs.bufnr('%')) + command('new') + eq(4, funcs.bufnr('$')) + end) +end) + +describe('bufwinnr() function', function() + it('returns -1 when buffer was not found', function() + command('file ' .. fname) + eq(-1, funcs.bufwinnr(2)) + eq(-1, funcs.bufwinnr('non-existent-buffer')) + eq(-1, funcs.bufwinnr('#')) + command('split ' .. fname2) -- It would be OK if there was one window + eq(2, funcs.bufnr('%')) + eq(-1, funcs.bufwinnr('X')) + end) + before_each(function() + lfs.mkdir(dirname) + end) + after_each(function() + lfs.rmdir(dirname) + end) + it('returns expected window number', function() + eq(1, funcs.bufwinnr('%')) + command('file ' .. fname) + command('vsplit') + command('split ' .. fname2) + eq(2, funcs.bufwinnr(fname)) + eq(1, funcs.bufwinnr(fname2)) + eq(-1, funcs.bufwinnr(fname:sub(1, #fname - 1))) + meths.set_current_dir(dirname) + eq(2, funcs.bufwinnr(fname)) + eq(1, funcs.bufwinnr(fname2)) + eq(-1, funcs.bufwinnr(fname:sub(1, #fname - 1))) + eq(1, funcs.bufwinnr('%')) + eq(2, funcs.bufwinnr(1)) + eq(1, funcs.bufwinnr(2)) + eq(-1, funcs.bufwinnr(3)) + eq(1, funcs.bufwinnr('$')) + end) +end) + +describe('getbufline() function', function() + it('returns empty list when buffer was not found', function() + command('file ' .. fname) + eq({}, funcs.getbufline(2, 1)) + eq({}, funcs.getbufline('non-existent-buffer', 1)) + eq({}, funcs.getbufline('#', 1)) + command('edit ' .. fname2) + eq(2, funcs.bufnr('%')) + eq({}, funcs.getbufline('X', 1)) + end) + it('returns empty list when range is invalid', function() + eq({}, funcs.getbufline(1, 0)) + curbufmeths.set_lines(0, 1, false, {'foo', 'bar', 'baz'}) + eq({}, funcs.getbufline(1, 2, 1)) + eq({}, funcs.getbufline(1, -10, -20)) + eq({}, funcs.getbufline(1, -2, -1)) + eq({}, funcs.getbufline(1, -1, 9999)) + end) + it('returns expected lines', function() + meths.set_option('hidden', true) + command('file ' .. fname) + curbufmeths.set_lines(0, 1, false, {'foo\0', '\0bar', 'baz'}) + command('edit ' .. fname2) + curbufmeths.set_lines(0, 1, false, {'abc\0', '\0def', 'ghi'}) + eq({'foo\n', '\nbar', 'baz'}, funcs.getbufline(1, 1, 9999)) + eq({'abc\n', '\ndef', 'ghi'}, funcs.getbufline(2, 1, 9999)) + eq({'foo\n', '\nbar', 'baz'}, funcs.getbufline(1, 1, '$')) + eq({'baz'}, funcs.getbufline(1, '$', '$')) + eq({'baz'}, funcs.getbufline(1, '$', 9999)) + end) +end) + +describe('getbufvar() function', function() + it('returns empty list when buffer was not found', function() + command('file ' .. fname) + eq('', funcs.getbufvar(2, '&autoindent')) + eq('', funcs.getbufvar('non-existent-buffer', '&autoindent')) + eq('', funcs.getbufvar('#', '&autoindent')) + command('edit ' .. fname2) + eq(2, funcs.bufnr('%')) + eq('', funcs.getbufvar('X', '&autoindent')) + end) + it('returns empty list when variable/option/etc was not found', function() + command('file ' .. fname) + eq('', funcs.getbufvar(1, '&autondent')) + eq('', funcs.getbufvar(1, 'changedtic')) + end) + it('returns expected option value', function() + eq(0, funcs.getbufvar(1, '&autoindent')) + eq(0, funcs.getbufvar(1, '&l:autoindent')) + eq(0, funcs.getbufvar(1, '&g:autoindent')) + -- Also works with global-only options + eq(0, funcs.getbufvar(1, '&hidden')) + eq(0, funcs.getbufvar(1, '&l:hidden')) + eq(0, funcs.getbufvar(1, '&g:hidden')) + -- Also works with window-local options + eq(0, funcs.getbufvar(1, '&number')) + eq(0, funcs.getbufvar(1, '&l:number')) + eq(0, funcs.getbufvar(1, '&g:number')) + command('new') + -- But with window-local options it probably does not what you expect + curwinmeths.set_option('number', true) + -- (note that current window’s buffer is 2, but getbufvar() receives 1) + eq(2, bufmeths.get_number(curwinmeths.get_buf())) + eq(1, funcs.getbufvar(1, '&number')) + eq(1, funcs.getbufvar(1, '&l:number')) + -- You can get global value though, if you find this useful. + eq(0, funcs.getbufvar(1, '&g:number')) + end) + it('returns expected variable value', function() + eq(2, funcs.getbufvar(1, 'changedtick')) + curbufmeths.set_lines(0, 1, false, {'abc\0', '\0def', 'ghi'}) + eq(3, funcs.getbufvar(1, 'changedtick')) + curbufmeths.set_var('test', true) + eq(true, funcs.getbufvar(1, 'test')) + eq({test=true, changedtick=3}, funcs.getbufvar(1, '')) + command('new') + eq(3, funcs.getbufvar(1, 'changedtick')) + eq(true, funcs.getbufvar(1, 'test')) + eq({test=true, changedtick=3}, funcs.getbufvar(1, '')) + end) +end) + +describe('setbufvar() function', function() + it('throws the error or ignores the input when buffer was not found', function() + command('file ' .. fname) + eq(0, + exc_exec('call setbufvar(2, "&autoindent", 0)')) + eq('Vim(call):E94: No matching buffer for non-existent-buffer', + exc_exec('call setbufvar("non-existent-buffer", "&autoindent", 0)')) + eq(0, + exc_exec('call setbufvar("#", "&autoindent", 0)')) + command('edit ' .. fname2) + eq(2, funcs.bufnr('%')) + eq('Vim(call):E93: More than one match for X', + exc_exec('call setbufvar("X", "&autoindent", 0)')) + end) + it('may set options, including window-local and global values', function() + local buf1 = meths.get_current_buf() + eq(false, curwinmeths.get_option('number')) + command('split') + command('new') + eq(2, bufmeths.get_number(curwinmeths.get_buf())) + funcs.setbufvar(1, '&number', true) + local windows = curtabmeths.list_wins() + eq(false, winmeths.get_option(windows[1], 'number')) + eq(true, winmeths.get_option(windows[2], 'number')) + eq(false, winmeths.get_option(windows[3], 'number')) + eq(false, winmeths.get_option(meths.get_current_win(), 'number')) + + eq(false, meths.get_option('hidden')) + funcs.setbufvar(1, '&hidden', true) + eq(true, meths.get_option('hidden')) + + eq(false, bufmeths.get_option(buf1, 'autoindent')) + funcs.setbufvar(1, '&autoindent', true) + eq(true, bufmeths.get_option(buf1, 'autoindent')) + eq('Vim(call):E355: Unknown option: xxx', + exc_exec('call setbufvar(1, "&xxx", 0)')) + end) + it('may set variables', function() + local buf1 = meths.get_current_buf() + command('split') + command('new') + eq(2, curbufmeths.get_number()) + funcs.setbufvar(1, 'number', true) + eq(true, bufmeths.get_var(buf1, 'number')) + eq('Vim(call):E461: Illegal variable name: b:', + exc_exec('call setbufvar(1, "", 0)')) + eq(true, bufmeths.get_var(buf1, 'number')) + funcs.setbufvar(1, 'changedtick', true) + -- eq(true, bufmeths.get_var(buf1, 'changedtick')) + eq(2, funcs.getbufvar(1, 'changedtick')) + end) +end) |