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https://github.com/neovim/neovim.git
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2afbce7651
Problem - `redir_exec` is obsolete, but it keeps getting used in new tests because people copy existing tests. - Disadvantages of `redir_exec`: - Captures extra junk before the actual error/message that we _want_ to test. - Does not fail on error, unlike e.g. `command()`. Solution - Use new functions like `nvim_exec` and `pcall_err`.
142 lines
5.5 KiB
Lua
142 lines
5.5 KiB
Lua
local helpers = require('test.functional.helpers')(after_each)
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local eq = helpers.eq
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local eval = helpers.eval
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local feed = helpers.feed
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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 pcall_err = helpers.pcall_err
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local exec_capture = helpers.exec_capture
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local curbufmeths = helpers.curbufmeths
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before_each(clear)
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local function changedtick()
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local ct = curbufmeths.get_changedtick()
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eq(ct, curbufmeths.get_var('changedtick'))
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eq(ct, curbufmeths.get_var('changedtick'))
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eq(ct, eval('b:changedtick'))
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eq(ct, eval('b:["changedtick"]'))
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eq(ct, eval('b:.changedtick'))
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eq(ct, funcs.getbufvar('%', 'changedtick'))
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eq(ct, funcs.getbufvar('%', '').changedtick)
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eq(ct, eval('b:').changedtick)
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return ct
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end
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describe('b:changedtick', function()
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-- Ported tests from Vim-8.0.333
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it('increments', function() -- Test_changedtick_increments
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-- New buffer has an empty line, tick starts at 2
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eq(2, changedtick())
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funcs.setline(1, 'hello')
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eq(3, changedtick())
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eq(0, exc_exec('undo'))
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-- Somehow undo counts as two changes
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eq(5, changedtick())
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end)
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it('is present in b: dictionary', function()
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eq(2, changedtick())
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command('let d = b:')
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eq(2, meths.get_var('d').changedtick)
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end)
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it('increments at bdel', function()
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command('new')
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eq(2, changedtick())
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local bnr = curbufmeths.get_number()
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eq(2, bnr)
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command('bdel')
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eq(3, funcs.getbufvar(bnr, 'changedtick'))
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eq(1, curbufmeths.get_number())
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end)
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it('fails to be changed by user', function()
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local ct = changedtick()
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local ctn = ct + 100500
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eq(0, exc_exec('let d = b:'))
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eq('Vim(let):E46: Cannot change read-only variable "b:changedtick"',
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pcall_err(command, 'let b:changedtick = ' .. ctn))
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eq('Vim(let):E46: Cannot change read-only variable "b:["changedtick"]"',
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pcall_err(command, 'let b:["changedtick"] = ' .. ctn))
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eq('Vim(let):E46: Cannot change read-only variable "b:.changedtick"',
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pcall_err(command, 'let b:.changedtick = ' .. ctn))
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eq('Vim(let):E46: Cannot change read-only variable "d.changedtick"',
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pcall_err(command, 'let d.changedtick = ' .. ctn))
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eq('Key is read-only: changedtick',
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pcall_err(curbufmeths.set_var, 'changedtick', ctn))
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eq('Vim(unlet):E795: Cannot delete variable b:changedtick',
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pcall_err(command, 'unlet b:changedtick'))
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eq('Vim(unlet):E46: Cannot change read-only variable "b:.changedtick"',
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pcall_err(command, 'unlet b:.changedtick'))
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eq('Vim(unlet):E46: Cannot change read-only variable "b:["changedtick"]"',
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pcall_err(command, 'unlet b:["changedtick"]'))
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eq('Vim(unlet):E46: Cannot change read-only variable "d.changedtick"',
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pcall_err(command, 'unlet d.changedtick'))
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eq('Key is read-only: changedtick',
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pcall_err(curbufmeths.del_var, 'changedtick'))
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eq(ct, changedtick())
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eq('Vim(let):E46: Cannot change read-only variable "b:["changedtick"]"',
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pcall_err(command, 'let b:["changedtick"] += ' .. ctn))
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eq('Vim(let):E46: Cannot change read-only variable "b:["changedtick"]"',
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pcall_err(command, 'let b:["changedtick"] -= ' .. ctn))
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eq('Vim(let):E46: Cannot change read-only variable "b:["changedtick"]"',
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pcall_err(command, 'let b:["changedtick"] .= ' .. ctn))
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eq(ct, changedtick())
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funcs.setline(1, 'hello')
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eq(ct + 1, changedtick())
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end)
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it('is listed in :let output', function()
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eq('b:changedtick #2', exec_capture(':let b:'))
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end)
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it('fails to unlock b:changedtick', function()
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eq(0, exc_exec('let d = b:'))
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eq(0, funcs.islocked('b:changedtick'))
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eq(0, funcs.islocked('d.changedtick'))
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eq('Vim(unlockvar):E940: Cannot lock or unlock variable b:changedtick',
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pcall_err(command, 'unlockvar b:changedtick'))
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eq('Vim(unlockvar):E46: Cannot change read-only variable "d.changedtick"',
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pcall_err(command, 'unlockvar d.changedtick'))
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eq(0, funcs.islocked('b:changedtick'))
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eq(0, funcs.islocked('d.changedtick'))
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eq('Vim(lockvar):E940: Cannot lock or unlock variable b:changedtick',
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pcall_err(command, 'lockvar b:changedtick'))
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eq('Vim(lockvar):E46: Cannot change read-only variable "d.changedtick"',
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pcall_err(command, 'lockvar d.changedtick'))
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eq(0, funcs.islocked('b:changedtick'))
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eq(0, funcs.islocked('d.changedtick'))
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end)
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it('is being completed', function()
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feed(':echo b:<Tab><Home>let cmdline="<End>"<CR>')
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eq('echo b:changedtick', meths.get_var('cmdline'))
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end)
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it('cannot be changed by filter() or map()', function()
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eq(2, changedtick())
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eq('Vim(call):E795: Cannot delete variable filter() argument',
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pcall_err(command, 'call filter(b:, 0)'))
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eq('Vim(call):E742: Cannot change value of map() argument',
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pcall_err(command, 'call map(b:, 0)'))
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eq('Vim(call):E742: Cannot change value of map() argument',
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pcall_err(command, 'call map(b:, "v:val")'))
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eq(2, changedtick())
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end)
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it('cannot be remove()d', function()
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eq(2, changedtick())
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eq('Vim(call):E795: Cannot delete variable remove() argument',
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pcall_err(command, 'call remove(b:, "changedtick")'))
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eq(2, changedtick())
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end)
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it('does not inherit VAR_FIXED when copying dictionary over', function()
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eq(2, changedtick())
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eq('', exec_capture('let d1 = copy(b:)|let d1.changedtick = 42'))
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eq('', exec_capture('let d2 = copy(b:)|unlet d2.changedtick'))
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eq(2, changedtick())
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end)
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end)
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