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path: root/test/functional/options/num_options_spec.lua
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-- Tests for :setlocal and :setglobal

local helpers = require('test.functional.helpers')(after_each)
local clear, execute, eval, eq, meths =
  helpers.clear, helpers.execute, helpers.eval, helpers.eq, helpers.meths

local function should_fail(opt, value, errmsg)
  execute('let v:errmsg = ""')
  execute('setglobal ' .. opt .. '=' .. value)
  eq(errmsg, eval("v:errmsg"):match("E%d*"))
  execute('let v:errmsg = ""')
  execute('setlocal ' .. opt .. '=' .. value)
  eq(errmsg, eval("v:errmsg"):match("E%d*"))
  execute('let v:errmsg = ""')
end

local function should_succeed(opt, value)
  execute('setglobal ' .. opt .. '=' .. value)
  eq('', eval("v:errmsg"))
  execute('setlocal ' .. opt .. '=' .. value)
  eq('', eval("v:errmsg"))
end

describe(':setlocal', function()
  before_each(clear)

  it('setlocal sets only local value', function()
    eq(0, meths.get_option('iminsert'))
    execute('setlocal iminsert=1')
    eq(0, meths.get_option('iminsert'))
    eq(0, meths.get_option('imsearch'))
    execute('setlocal imsearch=1')
    eq(0, meths.get_option('imsearch'))
  end)
end)

describe(':set validation', function()
  before_each(clear)

  it('setlocal and setglobal validate values', function()
    should_fail('shiftwidth', -10, 'E487')
    should_succeed('shiftwidth', 0)
    should_fail('tabstop', -10, 'E487')
    should_fail('winheight', -10, 'E487')
    should_fail('winheight', 0, 'E487')
    should_fail('winminheight', -1, 'E487')
    should_succeed('winminheight', 0)
    should_fail('winwidth', 0, 'E487')
    should_fail('helpheight', -1, 'E487')
    should_fail('maxcombine', 7, 'E474')
    should_fail('iminsert', 3, 'E474')
    should_fail('imsearch', 3, 'E474')
    should_fail('titlelen', -1, 'E487')
    should_fail('cmdheight', 0, 'E487')
    should_fail('updatecount', -1, 'E487')
    should_fail('textwidth', -1, 'E487')
    should_fail('tabstop', 0, 'E487')
    should_fail('timeoutlen', -1, 'E487')
    should_fail('history', 1000000, 'E474')
    should_fail('regexpengine', -1, 'E474')
    should_fail('regexpengine', 3, 'E474')
    should_succeed('regexpengine', 2)
    should_fail('report', -1, 'E487')
    should_succeed('report', 0)
    should_fail('scrolloff', -1, 'E49')
    should_fail('sidescrolloff', -1, 'E487')
    should_fail('sidescroll', -1, 'E487')
    should_fail('cmdwinheight', 0, 'E487')
    should_fail('updatetime', -1, 'E487')

    should_fail('foldlevel', -5, 'E487')
    should_fail('foldcolumn', 13, 'E474')
    should_fail('conceallevel', 4, 'E474')
    should_fail('numberwidth', 11, 'E474')
    should_fail('numberwidth', 0, 'E487')

    -- If smaller than one this one is set to 'lines'-1
    should_succeed('window', -10)
  end)

  it('set wmh/wh wmw/wiw checks', function()
    execute('set winheight=2')
    execute('set winminheight=3')
    eq('E591', eval("v:errmsg"):match("E%d*"))

    execute('set winwidth=2')
    execute('set winminwidth=3')
    eq('E592', eval("v:errmsg"):match("E%d*"))
  end)
end)