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93 lines
3.1 KiB
Lua
93 lines
3.1 KiB
Lua
local helpers = require('test.functional.helpers')(after_each)
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local clear = helpers.clear
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local eq = helpers.eq
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local eval = helpers.eval
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local fn = helpers.fn
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local api = helpers.api
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local exc_exec = helpers.exc_exec
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describe('printf()', function()
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before_each(clear)
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it('works with zero and %b', function()
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eq('0', fn.printf('%lb', 0))
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eq('0', fn.printf('%llb', 0))
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eq('0', fn.printf('%zb', 0))
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end)
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it('works with one and %b', function()
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eq('1', fn.printf('%b', 1))
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eq('1', fn.printf('%lb', 1))
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eq('1', fn.printf('%llb', 1))
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eq('1', fn.printf('%zb', 1))
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end)
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it('works with 0xff and %b', function()
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eq('11111111', fn.printf('%b', 0xff))
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eq('11111111', fn.printf('%lb', 0xff))
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eq('11111111', fn.printf('%llb', 0xff))
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eq('11111111', fn.printf('%zb', 0xff))
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end)
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it('accepts width modifier with %b', function()
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eq(' 1', fn.printf('%3b', 1))
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end)
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it('accepts prefix modifier with %b', function()
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eq('0b1', fn.printf('%#b', 1))
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end)
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it('writes capital B with %B', function()
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eq('0B1', fn.printf('%#B', 1))
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end)
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it('accepts prefix, zero-fill and width modifiers with %b', function()
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eq('0b001', fn.printf('%#05b', 1))
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end)
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it('accepts prefix and width modifiers with %b', function()
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eq(' 0b1', fn.printf('%#5b', 1))
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end)
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it('does not write prefix for zero with prefix and width modifier used with %b', function()
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eq(' 0', fn.printf('%#5b', 0))
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end)
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it('accepts precision modifier with %b', function()
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eq('00000', fn.printf('%.5b', 0))
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end)
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it('accepts all modifiers with %b at once', function()
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-- zero-fill modifier is ignored when used with left-align
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-- force-sign and add-blank are ignored
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-- use-grouping-characters modifier is ignored always
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eq('0b00011 ', fn.printf("% '+#0-10.5b", 3))
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end)
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it('errors out when %b modifier is used for a list', function()
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eq('Vim(call):E745: Using a List as a Number', exc_exec('call printf("%b", [])'))
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end)
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it('errors out when %b modifier is used for a float', function()
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eq('Vim(call):E805: Using a Float as a Number', exc_exec('call printf("%b", 3.1415926535)'))
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end)
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it('works with %p correctly', function()
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local null_ret = nil
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local seen_rets = {}
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-- Collect all args in an array to avoid possible allocation of the same
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-- address after freeing unreferenced values.
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api.nvim_set_var('__args', {})
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local function check_printf(expr, is_null)
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eq(0, exc_exec('call add(__args, ' .. expr .. ')'))
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eq(0, exc_exec('let __result = printf("%p", __args[-1])'))
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local id_ret = eval('id(__args[-1])')
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eq(id_ret, api.nvim_get_var('__result'))
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if is_null then
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if null_ret then
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eq(null_ret, id_ret)
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else
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null_ret = id_ret
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end
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else
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eq(nil, seen_rets[id_ret])
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seen_rets[id_ret] = expr
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end
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api.nvim_del_var('__result')
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end
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check_printf('v:_null_list', true)
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check_printf('v:_null_dict', true)
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check_printf('[]')
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check_printf('{}')
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check_printf('function("tr", ["a"])')
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end)
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end)
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