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https://github.com/neovim/neovim.git
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139 lines
6.1 KiB
Lua
139 lines
6.1 KiB
Lua
local helpers = require('test.unit.helpers')
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local cimport = helpers.cimport
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local to_cstr = helpers.to_cstr
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local eq = helpers.eq
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local neq = helpers.neq
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local ffi = helpers.ffi
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local decode = cimport('./src/nvim/eval/decode.h', './src/nvim/eval_defs.h',
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'./src/nvim/globals.h', './src/nvim/memory.h',
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'./src/nvim/message.h')
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describe('json_decode_string()', function()
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local saved_p_enc = nil
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before_each(function()
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saved_p_enc = decode.p_enc
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end)
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after_each(function()
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decode.emsg_silent = 0
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decode.p_enc = saved_p_enc
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while decode.delete_first_msg() == 1 do
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-- Delete all messages
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end
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end)
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local char = function(c)
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return ffi.gc(decode.xmemdup(c, 1), decode.xfree)
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end
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it('does not overflow when running with `n…`, `t…`, `f…`', function()
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local rettv = ffi.new('typval_T', {v_type=decode.VAR_UNKNOWN})
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decode.emsg_silent = 1
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-- This will not crash, but if `len` argument will be ignored it will parse
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-- `null` as `null` and if not it will parse `null` as `n`.
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eq(0, decode.json_decode_string('null', 1, rettv))
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eq(decode.VAR_UNKNOWN, rettv.v_type)
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eq(0, decode.json_decode_string('true', 1, rettv))
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eq(decode.VAR_UNKNOWN, rettv.v_type)
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eq(0, decode.json_decode_string('false', 1, rettv))
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eq(decode.VAR_UNKNOWN, rettv.v_type)
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eq(0, decode.json_decode_string('null', 2, rettv))
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eq(decode.VAR_UNKNOWN, rettv.v_type)
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eq(0, decode.json_decode_string('true', 2, rettv))
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eq(decode.VAR_UNKNOWN, rettv.v_type)
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eq(0, decode.json_decode_string('false', 2, rettv))
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eq(decode.VAR_UNKNOWN, rettv.v_type)
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eq(0, decode.json_decode_string('null', 3, rettv))
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eq(decode.VAR_UNKNOWN, rettv.v_type)
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eq(0, decode.json_decode_string('true', 3, rettv))
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eq(decode.VAR_UNKNOWN, rettv.v_type)
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eq(0, decode.json_decode_string('false', 3, rettv))
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eq(decode.VAR_UNKNOWN, rettv.v_type)
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eq(0, decode.json_decode_string('false', 4, rettv))
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eq(decode.VAR_UNKNOWN, rettv.v_type)
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end)
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it('does not overflow and crash when running with `n`, `t`, `f`', function()
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local rettv = ffi.new('typval_T', {v_type=decode.VAR_UNKNOWN})
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decode.emsg_silent = 1
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eq(0, decode.json_decode_string(char('n'), 1, rettv))
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eq(decode.VAR_UNKNOWN, rettv.v_type)
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eq(0, decode.json_decode_string(char('t'), 1, rettv))
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eq(decode.VAR_UNKNOWN, rettv.v_type)
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eq(0, decode.json_decode_string(char('f'), 1, rettv))
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eq(decode.VAR_UNKNOWN, rettv.v_type)
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end)
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it('does not overflow when running with `"…`', function()
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local rettv = ffi.new('typval_T', {v_type=decode.VAR_UNKNOWN})
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decode.emsg_silent = 1
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eq(0, decode.json_decode_string('"t"', 2, rettv))
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eq(decode.VAR_UNKNOWN, rettv.v_type)
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eq(0, decode.json_decode_string('""', 1, rettv))
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eq(decode.VAR_UNKNOWN, rettv.v_type)
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end)
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it('does not overflow in error messages', function()
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local check_failure = function(s, len, msg)
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local rettv = ffi.new('typval_T', {v_type=decode.VAR_UNKNOWN})
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eq(0, decode.json_decode_string(s, len, rettv))
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eq(decode.VAR_UNKNOWN, rettv.v_type)
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neq(nil, decode.last_msg_hist)
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eq(msg, ffi.string(decode.last_msg_hist.msg))
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end
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local rettv = ffi.new('typval_T', {v_type=decode.VAR_UNKNOWN})
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check_failure(']test', 1, 'E474: No container to close: ]')
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check_failure('[}test', 2, 'E474: Closing list with curly bracket: }')
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check_failure('{]test', 2,
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'E474: Closing dictionary with square bracket: ]')
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check_failure('[1,]test', 4, 'E474: Trailing comma: ]')
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check_failure('{"1":}test', 6, 'E474: Expected value after colon: }')
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check_failure('{"1"}test', 5, 'E474: Expected value: }')
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check_failure(',test', 1, 'E474: Comma not inside container: ,')
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check_failure('[1,,1]test', 6, 'E474: Duplicate comma: ,1]')
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check_failure('{"1":,}test', 7, 'E474: Comma after colon: ,}')
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check_failure('{"1",}test', 6, 'E474: Using comma in place of colon: ,}')
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check_failure('{,}test', 3, 'E474: Leading comma: ,}')
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check_failure('[,]test', 3, 'E474: Leading comma: ,]')
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check_failure(':test', 1, 'E474: Colon not inside container: :')
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check_failure('[:]test', 3, 'E474: Using colon not in dictionary: :]')
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check_failure('{:}test', 3, 'E474: Unexpected colon: :}')
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check_failure('{"1"::1}test', 8, 'E474: Duplicate colon: :1}')
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check_failure('ntest', 1, 'E474: Expected null: n')
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check_failure('ttest', 1, 'E474: Expected true: t')
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check_failure('ftest', 1, 'E474: Expected false: f')
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check_failure('"\\test', 2, 'E474: Unfinished escape sequence: "\\')
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check_failure('"\\u"test', 4,
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'E474: Unfinished unicode escape sequence: "\\u"')
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check_failure('"\\uXXXX"est', 8,
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'E474: Expected four hex digits after \\u: \\uXXXX"')
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check_failure('"\\?"test', 4, 'E474: Unknown escape sequence: \\?"')
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check_failure(
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'"\t"test', 3,
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'E474: ASCII control characters cannot be present inside string: \t"')
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check_failure('"\194"test', 3, 'E474: Only UTF-8 strings allowed: \194"')
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check_failure('"\xFC\x90\x80\x80\x80\x80"test', 8, 'E474: Only UTF-8 code points up to U+10FFFF are allowed to appear unescaped: \xFC\x90\x80\x80\x80\x80"')
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check_failure('"test', 1, 'E474: Expected string end: "')
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decode.p_enc = to_cstr('latin1')
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check_failure('"\\uABCD"test', 8,
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'E474: Failed to convert string "ꯍ" from UTF-8')
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decode.p_enc = saved_p_enc
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check_failure('-test', 1, 'E474: Missing number after minus sign: -')
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check_failure('-1.test', 3, 'E474: Missing number after decimal dot: -1.')
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check_failure('-1.0etest', 5, 'E474: Missing exponent: -1.0e')
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check_failure('?test', 1, 'E474: Unidentified byte: ?')
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check_failure('1?test', 2, 'E474: Trailing characters: ?')
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check_failure('[1test', 2, 'E474: Unexpected end of input: [1')
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end)
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it('does not overflow and crash when running with `"`', function()
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local rettv = ffi.new('typval_T', {v_type=decode.VAR_UNKNOWN})
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decode.emsg_silent = 1
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eq(0, decode.json_decode_string(char('"'), 1, rettv))
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eq(decode.VAR_UNKNOWN, rettv.v_type)
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end)
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end)
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