mirror of
https://github.com/neovim/neovim
synced 2025-07-15 16:51:49 +00:00
1c81734871
Same idea as a7be4b7bf8, but that only showed the context if the
length of the string differed. Since these tests check both string
length and string content, the ctx should be provided for both.
ERROR test/unit/testutil.lua @ 797: vim_snprintf() positional arguments
test/unit/testutil.lua:769: test/unit/testutil.lua:753: (string) '
test/unit/strings_spec.lua:159: snprintf(buf, 4, "%1$0.*2$b", 12ULL, cdata<int>: 0xf78c8ed8) = 001100
Expected objects to be the same.
Passed in:
(string) '000'
Expected:
(string) '001''
314 lines
11 KiB
Lua
314 lines
11 KiB
Lua
local t = require('test.unit.testutil')
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local itp = t.gen_itp(it)
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local child_call_once = t.child_call_once
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local cimport = t.cimport
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local eq = t.eq
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local ffi = t.ffi
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local to_cstr = t.to_cstr
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local strings = cimport('stdlib.h', './src/nvim/strings.h', './src/nvim/memory.h')
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local UVARNUM_TYPE
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child_call_once(function()
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UVARNUM_TYPE = ffi.typeof('uvarnumber_T')
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end)
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describe('vim_strsave_escaped()', function()
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local vim_strsave_escaped = function(s, chars)
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local res = strings.vim_strsave_escaped(to_cstr(s), to_cstr(chars))
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local ret = ffi.string(res)
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-- Explicitly free memory so we are sure it is allocated: if it was not it
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-- will crash.
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strings.xfree(res)
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return ret
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end
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itp('precedes by a backslash all chars from second argument', function()
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eq([[\a\b\c\d]], vim_strsave_escaped('abcd', 'abcd'))
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end)
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itp('precedes by a backslash chars only from second argument', function()
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eq([[\a\bcd]], vim_strsave_escaped('abcd', 'ab'))
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end)
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itp('returns a copy of passed string if second argument is empty', function()
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eq('text \n text', vim_strsave_escaped('text \n text', ''))
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end)
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itp('returns an empty string if first argument is empty string', function()
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eq('', vim_strsave_escaped('', '\r'))
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end)
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itp('returns a copy of passed string if it does not contain chars from 2nd argument', function()
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eq('some text', vim_strsave_escaped('some text', 'a'))
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end)
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end)
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describe('vim_strnsave_unquoted()', function()
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local vim_strnsave_unquoted = function(s, len)
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local res = strings.vim_strnsave_unquoted(to_cstr(s), len or #s)
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local ret = ffi.string(res)
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-- Explicitly free memory so we are sure it is allocated: if it was not it
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-- will crash.
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strings.xfree(res)
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return ret
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end
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itp('copies unquoted strings as-is', function()
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eq('-c', vim_strnsave_unquoted('-c'))
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eq('', vim_strnsave_unquoted(''))
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end)
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itp('respects length argument', function()
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eq('', vim_strnsave_unquoted('-c', 0))
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eq('-', vim_strnsave_unquoted('-c', 1))
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eq('-', vim_strnsave_unquoted('"-c', 2))
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end)
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itp('unquotes fully quoted word', function()
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eq('/bin/sh', vim_strnsave_unquoted('"/bin/sh"'))
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end)
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itp('unquotes partially quoted word', function()
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eq('/Program Files/sh', vim_strnsave_unquoted('/Program" "Files/sh'))
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end)
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itp('removes ""', function()
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eq('/Program Files/sh', vim_strnsave_unquoted('/""Program" "Files/sh'))
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end)
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itp('performs unescaping of "', function()
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eq('/"Program Files"/sh', vim_strnsave_unquoted('/"\\""Program Files"\\""/sh'))
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end)
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itp('performs unescaping of \\', function()
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eq('/\\Program Files\\foo/sh', vim_strnsave_unquoted('/"\\\\"Program Files"\\\\foo"/sh'))
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end)
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itp('strips quote when there is no pair to it', function()
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eq('/Program Files/sh', vim_strnsave_unquoted('/Program" Files/sh'))
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eq('', vim_strnsave_unquoted('"'))
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end)
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itp('allows string to end with one backslash unescaped', function()
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eq('/Program Files/sh\\', vim_strnsave_unquoted('/Program" Files/sh\\'))
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end)
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itp('does not perform unescaping out of quotes', function()
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eq('/Program\\ Files/sh\\', vim_strnsave_unquoted('/Program\\ Files/sh\\'))
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end)
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itp('does not unescape \\n', function()
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eq('/Program\\nFiles/sh', vim_strnsave_unquoted('/Program"\\n"Files/sh'))
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end)
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end)
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describe('vim_strchr()', function()
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local vim_strchr = function(s, c)
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local str = to_cstr(s)
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local res = strings.vim_strchr(str, c)
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if res == nil then
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return nil
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else
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return res - str
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end
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end
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itp('handles NUL and <0 correctly', function()
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eq(nil, vim_strchr('abc', 0))
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eq(nil, vim_strchr('abc', -1))
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end)
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itp('works', function()
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eq(0, vim_strchr('abc', ('a'):byte()))
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eq(1, vim_strchr('abc', ('b'):byte()))
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eq(2, vim_strchr('abc', ('c'):byte()))
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eq(0, vim_strchr('a«b»c', ('a'):byte()))
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eq(3, vim_strchr('a«b»c', ('b'):byte()))
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eq(6, vim_strchr('a«b»c', ('c'):byte()))
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eq(nil, vim_strchr('«»', ('«'):byte()))
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-- 0xAB == 171 == '«'
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eq(nil, vim_strchr('\171', 0xAB))
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eq(0, vim_strchr('«»', 0xAB))
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eq(3, vim_strchr('„«»“', 0xAB))
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eq(7, vim_strchr('„«»“', 0x201C))
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eq(nil, vim_strchr('„«»“', 0x201D))
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eq(0, vim_strchr('„«»“', 0x201E))
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eq(0, vim_strchr('\244\143\188\128', 0x10FF00))
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eq(2, vim_strchr('«\244\143\188\128»', 0x10FF00))
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-- |0xDBFF |0xDF00 - surrogate pair for 0x10FF00
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eq(nil, vim_strchr('«\237\175\191\237\188\128»', 0x10FF00))
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end)
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end)
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describe('vim_snprintf()', function()
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local function a(expected, buf, bsize, fmt, ...)
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local args = { ... }
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local ctx = string.format('snprintf(buf, %d, "%s"', bsize, fmt)
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for _, x in ipairs(args) do
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ctx = ctx .. ', ' .. tostring(x)
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end
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ctx = ctx .. string.format(') = %s', expected)
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eq(#expected, strings.vim_snprintf(buf, bsize, fmt, ...), ctx)
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if bsize > 0 then
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local actual = ffi.string(buf, math.min(#expected + 1, bsize))
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eq(expected:sub(1, bsize - 1) .. '\0', actual, ctx)
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end
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end
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local function uv(n)
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return ffi.cast(UVARNUM_TYPE, n)
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end
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local function i(n)
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return ffi.cast('int', n)
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end
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local function l(n)
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return ffi.cast('long', n)
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end
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local function ll(n)
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return ffi.cast('long long', n)
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end
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local function z(n)
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return ffi.cast('ptrdiff_t', n)
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end
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local function u(n)
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return ffi.cast('unsigned', n)
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end
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local function ul(n)
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return ffi.cast('unsigned long', n)
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end
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local function ull(n)
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return ffi.cast('unsigned long long', n)
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end
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local function uz(n)
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return ffi.cast('size_t', n)
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end
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itp('truncation', function()
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for bsize = 0, 14 do
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local buf = ffi.gc(strings.xmalloc(bsize), strings.xfree)
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a('1.00000001e7', buf, bsize, '%.8g', 10000000.1)
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a('1234567', buf, bsize, '%d', i(1234567))
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a('1234567', buf, bsize, '%ld', l(1234567))
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a(' 1234567', buf, bsize, '%9ld', l(1234567))
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a('1234567 ', buf, bsize, '%-9ld', l(1234567))
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a('deadbeef', buf, bsize, '%x', u(0xdeadbeef))
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a('001100', buf, bsize, '%06b', uv(12))
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a('one two', buf, bsize, '%s %s', 'one', 'two')
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a('1.234000', buf, bsize, '%f', 1.234)
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a('1.234000e+00', buf, bsize, '%e', 1.234)
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a('nan', buf, bsize, '%f', 0.0 / 0.0)
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a('inf', buf, bsize, '%f', 1.0 / 0.0)
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a('-inf', buf, bsize, '%f', -1.0 / 0.0)
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a('-0.000000', buf, bsize, '%f', tonumber('-0.0'))
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a('漢語', buf, bsize, '%s', '漢語')
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a(' 漢語', buf, bsize, '%8s', '漢語')
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a('漢語 ', buf, bsize, '%-8s', '漢語')
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a('漢', buf, bsize, '%.3s', '漢語')
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a(' foo', buf, bsize, '%5S', 'foo')
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a('%%%', buf, bsize, '%%%%%%')
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a('0x87654321', buf, bsize, '%p', ffi.cast('char *', 0x87654321))
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a('0x0087654321', buf, bsize, '%012p', ffi.cast('char *', 0x87654321))
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end
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end)
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itp('positional arguments', function()
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for bsize = 0, 24 do
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local buf = ffi.gc(strings.xmalloc(bsize), strings.xfree)
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a('1234567 ', buf, bsize, '%1$*2$ld', l(1234567), i(-9))
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a('1234567 ', buf, bsize, '%1$*2$.*3$ld', l(1234567), i(-9), i(5))
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a('1234567 ', buf, bsize, '%1$*3$.*2$ld', l(1234567), i(5), i(-9))
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a('1234567 ', buf, bsize, '%3$*1$.*2$ld', i(-9), i(5), l(1234567))
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a('1234567', buf, bsize, '%1$ld', l(1234567))
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a(' 1234567', buf, bsize, '%1$*2$ld', l(1234567), i(9))
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a('9 12345 7654321', buf, bsize, '%2$ld %1$d %3$lu', i(12345), l(9), ul(7654321))
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a('9 1234567 7654321', buf, bsize, '%2$d %1$ld %3$lu', l(1234567), i(9), ul(7654321))
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a('9 1234567 7654321', buf, bsize, '%2$d %1$lld %3$lu', ll(1234567), i(9), ul(7654321))
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a('9 12345 7654321', buf, bsize, '%2$ld %1$u %3$lu', u(12345), l(9), ul(7654321))
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a('9 1234567 7654321', buf, bsize, '%2$d %1$lu %3$lu', ul(1234567), i(9), ul(7654321))
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a('9 1234567 7654321', buf, bsize, '%2$d %1$llu %3$lu', ull(1234567), i(9), ul(7654321))
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a('9 deadbeef 7654321', buf, bsize, '%2$d %1$x %3$lu', u(0xdeadbeef), i(9), ul(7654321))
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a('9 c 7654321', buf, bsize, '%2$ld %1$c %3$lu', i(('c'):byte()), l(9), ul(7654321))
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a('9 hi 7654321', buf, bsize, '%2$ld %1$s %3$lu', 'hi', l(9), ul(7654321))
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a('9 0.000000e+00 7654321', buf, bsize, '%2$ld %1$e %3$lu', 0.0, l(9), ul(7654321))
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a('two one two', buf, bsize, '%2$s %1$s %2$s', 'one', 'two', 'three')
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a('three one two', buf, bsize, '%3$s %1$s %2$s', 'one', 'two', 'three')
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a('1234567', buf, bsize, '%1$d', i(1234567))
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a('deadbeef', buf, bsize, '%1$x', u(0xdeadbeef))
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a('001100', buf, bsize, '%2$0*1$b', i(6), uv(12))
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a('001100', buf, bsize, '%1$0.*2$b', uv(12), i(6))
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a('one two', buf, bsize, '%1$s %2$s', 'one', 'two')
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a('001100', buf, bsize, '%06b', uv(12))
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a('two one', buf, bsize, '%2$s %1$s', 'one', 'two')
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a('1.234000', buf, bsize, '%1$f', 1.234)
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a('1.234000e+00', buf, bsize, '%1$e', 1.234)
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a('nan', buf, bsize, '%1$f', 0.0 / 0.0)
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a('inf', buf, bsize, '%1$f', 1.0 / 0.0)
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a('-inf', buf, bsize, '%1$f', -1.0 / 0.0)
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a('-0.000000', buf, bsize, '%1$f', tonumber('-0.0'))
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end
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end)
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itp('%zd and %zu', function()
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local bsize = 20
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local buf = ffi.gc(strings.xmalloc(bsize), strings.xfree)
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a('-1234567 -7654321', buf, bsize, '%zd %zd', z(-1234567), z(-7654321))
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a('-7654321 -1234567', buf, bsize, '%2$zd %1$zd', z(-1234567), z(-7654321))
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a('1234567 7654321', buf, bsize, '%zu %zu', uz(1234567), uz(7654321))
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a('7654321 1234567', buf, bsize, '%2$zu %1$zu', uz(1234567), uz(7654321))
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end)
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end)
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describe('strcase_save()', function()
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local strcase_save = function(input_string, upper)
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local res = strings.strcase_save(to_cstr(input_string), upper)
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return ffi.string(res)
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end
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itp('decodes overlong encoded characters.', function()
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eq('A', strcase_save('\xc1\x81', true))
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eq('a', strcase_save('\xc1\x81', false))
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end)
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end)
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describe('reverse_text', function()
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local reverse_text = function(str)
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return t.internalize(strings.reverse_text(to_cstr(str)))
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end
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itp('handles empty string', function()
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eq('', reverse_text(''))
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end)
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itp('handles simple cases', function()
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eq('a', reverse_text('a'))
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eq('ba', reverse_text('ab'))
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end)
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itp('handles multibyte characters', function()
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eq('bα', reverse_text('αb'))
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eq('Yötön yö', reverse_text('öy nötöY'))
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end)
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itp('handles combining chars', function()
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local utf8_COMBINING_RING_ABOVE = '\204\138'
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local utf8_COMBINING_RING_BELOW = '\204\165'
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eq(
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'bba' .. utf8_COMBINING_RING_ABOVE .. utf8_COMBINING_RING_BELOW .. 'aa',
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reverse_text('aaa' .. utf8_COMBINING_RING_ABOVE .. utf8_COMBINING_RING_BELOW .. 'bb')
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)
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end)
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itp('treats invalid utf as separate characters', function()
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eq('\192ba', reverse_text('ab\192'))
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end)
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itp('treats an incomplete utf continuation sequence as valid', function()
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eq('\194ba', reverse_text('ab\194'))
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end)
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end)
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