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before_each(clear) is required to init the test harness for single-test runs, and also to ensure a known environment for each test.
61 lines
2.1 KiB
Lua
61 lines
2.1 KiB
Lua
local helpers = require('test.functional.helpers')
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local clear = helpers.clear
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local eq = helpers.eq
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local funcs = helpers.funcs
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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', funcs.printf('%lb', 0))
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eq('0', funcs.printf('%llb', 0))
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eq('0', funcs.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', funcs.printf('%b', 1))
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eq('1', funcs.printf('%lb', 1))
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eq('1', funcs.printf('%llb', 1))
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eq('1', funcs.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', funcs.printf('%b', 0xff))
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eq('11111111', funcs.printf('%lb', 0xff))
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eq('11111111', funcs.printf('%llb', 0xff))
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eq('11111111', funcs.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', funcs.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', funcs.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', funcs.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', funcs.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', funcs.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', funcs.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', funcs.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 ', funcs.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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end)
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