neovim/test/functional/shada/variables_spec.lua

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-- ShaDa variables saving/reading support
local helpers = require('test.functional.helpers')(after_each)
local meths, funcs, nvim_command, eq, eval =
helpers.meths, helpers.funcs, helpers.command, helpers.eq, helpers.eval
local expect_exit = helpers.expect_exit
local shada_helpers = require('test.functional.shada.helpers')
local reset, clear = shada_helpers.reset, shada_helpers.clear
describe('ShaDa support code', function()
before_each(reset)
after_each(clear)
it('is able to dump and read back string variable', function()
meths.set_var('STRVAR', 'foo')
nvim_command('set shada+=!')
nvim_command('wshada')
reset()
nvim_command('set shada+=!')
nvim_command('rshada')
eq('foo', meths.get_var('STRVAR'))
end)
local autotest = function(tname, varname, varval, val_is_expr)
it('is able to dump and read back ' .. tname .. ' variable automatically',
function()
reset('set shada+=!')
if val_is_expr then
nvim_command('let g:' .. varname .. ' = ' .. varval)
varval = meths.get_var(varname)
else
meths.set_var(varname, varval)
end
local vartype = eval('type(g:' .. varname .. ')')
-- Exit during `reset` is not a regular exit: it does not write shada
-- automatically
expect_exit(nvim_command, 'qall')
reset('set shada+=!')
eq(vartype, eval('type(g:' .. varname .. ')'))
eq(varval, meths.get_var(varname))
end)
end
autotest('string', 'STRVAR', 'foo')
autotest('number', 'NUMVAR', 42)
autotest('float', 'FLTVAR', 42.5)
autotest('dictionary', 'DCTVAR', {a=10})
autotest('list', 'LSTVAR', {{a=10}, {b=10.5}, {c='str'}})
autotest('true', 'TRUEVAR', true)
autotest('false', 'FALSEVAR', false)
autotest('null', 'NULLVAR', 'v:null', true)
autotest('ext', 'EXTVAR', '{"_TYPE": v:msgpack_types.ext, "_VAL": [2, ["", ""]]}', true)
autotest('blob', 'BLOBVAR', '0z12ab34cd', true)
autotest('blob (with NULs)', 'BLOBVARNULS', '0z004e554c7300', true)
it('does not read back variables without `!` in &shada', function()
meths.set_var('STRVAR', 'foo')
nvim_command('set shada+=!')
nvim_command('wshada')
reset('set shada-=!')
nvim_command('rshada')
eq(0, funcs.exists('g:STRVAR'))
end)
it('does not dump variables without `!` in &shada', function()
nvim_command('set shada-=!')
meths.set_var('STRVAR', 'foo')
nvim_command('wshada')
reset()
nvim_command('set shada+=!')
nvim_command('rshada')
eq(0, funcs.exists('g:STRVAR'))
end)
it('does not dump session variables', function()
nvim_command('set shada+=!')
meths.set_var('StrVar', 'foo')
nvim_command('wshada')
reset()
nvim_command('set shada+=!')
nvim_command('rshada')
eq(0, funcs.exists('g:StrVar'))
end)
it('does not dump regular variables', function()
nvim_command('set shada+=!')
meths.set_var('str_var', 'foo')
nvim_command('wshada')
reset()
nvim_command('set shada+=!')
nvim_command('rshada')
eq(0, funcs.exists('g:str_var'))
end)
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it('dumps and loads variables correctly with utf-8 strings',
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function()
reset()
meths.set_var('STRVAR', '«')
meths.set_var('LSTVAR', {'«'})
meths.set_var('DCTVAR', {['«']='«'})
meths.set_var('NESTEDVAR', {['«']={{'«'}, {['«']='«'}, {a='Test'}}})
expect_exit(nvim_command, 'qall')
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reset()
eq('«', meths.get_var('STRVAR'))
eq({'«'}, meths.get_var('LSTVAR'))
eq({['«']='«'}, meths.get_var('DCTVAR'))
eq({['«']={{'«'}, {['«']='«'}, {a='Test'}}}, meths.get_var('NESTEDVAR'))
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end)
it('dumps and loads variables correctly with 8-bit strings',
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function()
reset()
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-- \171 is U+00AB LEFT-POINTING DOUBLE ANGLE QUOTATION MARK in latin1
-- This is invalid unicode, but we should still dump and restore it.
meths.set_var('STRVAR', '\171')
meths.set_var('LSTVAR', {'\171'})
meths.set_var('DCTVAR', {['«\171']='«\171'})
meths.set_var('NESTEDVAR', {['\171']={{'\171«'}, {['\171']='\171'},
{a='Test'}}})
expect_exit(nvim_command, 'qall')
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reset()
eq('\171', meths.get_var('STRVAR'))
eq({'\171'}, meths.get_var('LSTVAR'))
eq({['«\171']='«\171'}, meths.get_var('DCTVAR'))
eq({['\171']={{'\171«'}, {['\171']='\171'}, {a='Test'}}},
meths.get_var('NESTEDVAR'))
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end)
it('ignore when a funcref is stored in a variable',
function()
nvim_command('let F = function("tr")')
meths.set_var('U', '10')
nvim_command('set shada+=!')
nvim_command('wshada')
reset()
nvim_command('set shada+=!')
nvim_command('rshada')
eq('10', meths.get_var('U'))
end)
it('ignore when a partial is stored in a variable',
function()
nvim_command('let P = { -> 1 }')
meths.set_var('U', '10')
nvim_command('set shada+=!')
nvim_command('wshada')
reset()
nvim_command('set shada+=!')
nvim_command('rshada')
eq('10', meths.get_var('U'))
end)
it('ignore when a self-referencing list is stored in a variable',
function()
meths.set_var('L', {})
nvim_command('call add(L, L)')
meths.set_var('U', '10')
nvim_command('set shada+=!')
nvim_command('wshada')
reset()
nvim_command('rshada')
eq('10', meths.get_var('U'))
end)
end)