2016-04-23 16:53:11 -07:00
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local helpers = require('test.functional.helpers')(after_each)
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2016-05-05 17:48:37 -07:00
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local call, clear = helpers.call, helpers.clear
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local source, eq, nvim = helpers.source, helpers.eq, helpers.meths
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describe("test 'backspace' settings", function()
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before_each(function()
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clear()
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source([[
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func Exec(expr)
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let str=''
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try
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exec a:expr
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catch /.*/
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let str=v:exception
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endtry
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return str
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endfunc
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func Test_backspace_option()
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set backspace=
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call assert_equal('', &backspace)
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set backspace=indent
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call assert_equal('indent', &backspace)
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set backspace=eol
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call assert_equal('eol', &backspace)
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set backspace=start
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call assert_equal('start', &backspace)
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" Add the value
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set backspace=
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set backspace=indent
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call assert_equal('indent', &backspace)
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set backspace+=eol
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call assert_equal('indent,eol', &backspace)
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set backspace+=start
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call assert_equal('indent,eol,start', &backspace)
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" Delete the value
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set backspace-=indent
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call assert_equal('eol,start', &backspace)
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set backspace-=start
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call assert_equal('eol', &backspace)
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set backspace-=eol
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call assert_equal('', &backspace)
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" Check the error
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call assert_equal(0, match(Exec('set backspace=ABC'), '.*E474'))
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call assert_equal(0, match(Exec('set backspace+=def'), '.*E474'))
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" NOTE: Vim doesn't check following error...
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"call assert_equal(0, match(Exec('set backspace-=ghi'), '.*E474'))
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" Check backwards compatibility with version 5.4 and earlier
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set backspace=0
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call assert_equal('0', &backspace)
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set backspace=1
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call assert_equal('1', &backspace)
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set backspace=2
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call assert_equal('2', &backspace)
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call assert_false(match(Exec('set backspace=3'), '.*E474'))
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call assert_false(match(Exec('set backspace=10'), '.*E474'))
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endfunc
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]])
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end)
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it('works', function()
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call('Test_backspace_option')
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eq({}, nvim.get_vvar('errors'))
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end)
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end)
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