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neovim/test/functional/eval/json_functions_spec.lua
ZyX 65fb622000 functests: Replace execute with either command or feed_command 
Hope this will make people using feed_command less likely: this hides bugs.
Already found at least two:

1. msgpackparse() will show internal error: hash_add() in case of duplicate
   keys, though it will still work correctly. Currently silenced.
2. ttimeoutlen was spelled incorrectly, resulting in option not being set when
   expected. Test was still functioning somehow though. Currently fixed.
2017-04-09 03:24:08 +03:00

780 lines
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Raw Blame History

local helpers = require('test.functional.helpers')(after_each)
local clear = helpers.clear
local funcs = helpers.funcs
local meths = helpers.meths
local eq = helpers.eq
local eval = helpers.eval
local command = helpers.command
local exc_exec = helpers.exc_exec
local redir_exec = helpers.redir_exec
local NIL = helpers.NIL
local source = helpers.source
describe('json_decode() function', function()
local restart = function(...)
clear(...)
source([[
language C
function Eq(exp, act)
let act = a:act
let exp = a:exp
if type(exp) != type(act)
return 0
endif
if type(exp) == type({})
if sort(keys(exp)) !=# sort(keys(act))
return 0
endif
if sort(keys(exp)) ==# ['_TYPE', '_VAL']
let exp_typ = v:msgpack_types[exp._TYPE]
let act_typ = act._TYPE
if exp_typ isnot act_typ
return 0
endif
return Eq(exp._VAL, act._VAL)
else
return empty(filter(copy(exp), '!Eq(v:val, act[v:key])'))
endif
else
if type(exp) == type([])
if len(exp) != len(act)
return 0
endif
return empty(filter(copy(exp), '!Eq(v:val, act[v:key])'))
endif
return exp ==# act
endif
return 1
endfunction
function EvalEq(exp, act_expr)
let act = eval(a:act_expr)
if Eq(a:exp, act)
return 1
else
return string(act)
endif
endfunction
]])
end
before_each(restart)
local speq = function(expected, actual_expr)
eq(1, funcs.EvalEq(expected, actual_expr))
end
it('accepts readfile()-style list', function()
eq({Test=1}, funcs.json_decode({
'{',
'\t"Test": 1',
'}',
}))
end)
it('accepts strings with newlines', function()
eq({Test=1}, funcs.json_decode([[
{
"Test": 1
}
]]))
end)
it('parses null, true, false', function()
eq(NIL, funcs.json_decode('null'))
eq(true, funcs.json_decode('true'))
eq(false, funcs.json_decode('false'))
end)
it('fails to parse incomplete null, true, false', function()
eq('Vim(call):E474: Expected null: n',
exc_exec('call json_decode("n")'))
eq('Vim(call):E474: Expected null: nu',
exc_exec('call json_decode("nu")'))
eq('Vim(call):E474: Expected null: nul',
exc_exec('call json_decode("nul")'))
eq('Vim(call):E474: Expected null: nul\n\t',
exc_exec('call json_decode("nul\\n\\t")'))
eq('Vim(call):E474: Expected true: t',
exc_exec('call json_decode("t")'))
eq('Vim(call):E474: Expected true: tr',
exc_exec('call json_decode("tr")'))
eq('Vim(call):E474: Expected true: tru',
exc_exec('call json_decode("tru")'))
eq('Vim(call):E474: Expected true: tru\t\n',
exc_exec('call json_decode("tru\\t\\n")'))
eq('Vim(call):E474: Expected false: f',
exc_exec('call json_decode("f")'))
eq('Vim(call):E474: Expected false: fa',
exc_exec('call json_decode("fa")'))
eq('Vim(call):E474: Expected false: fal',
exc_exec('call json_decode("fal")'))
eq('Vim(call):E474: Expected false: fal <',
exc_exec('call json_decode(" fal <")'))
eq('Vim(call):E474: Expected false: fals',
exc_exec('call json_decode("fals")'))
end)
it('parses integer numbers', function()
eq(100000, funcs.json_decode('100000'))
eq(-100000, funcs.json_decode('-100000'))
eq(100000, funcs.json_decode(' 100000 '))
eq(-100000, funcs.json_decode(' -100000 '))
eq(0, funcs.json_decode('0'))
eq(0, funcs.json_decode('-0'))
end)
it('fails to parse +numbers and .number', function()
eq('Vim(call):E474: Unidentified byte: +1000',
exc_exec('call json_decode("+1000")'))
eq('Vim(call):E474: Unidentified byte: .1000',
exc_exec('call json_decode(".1000")'))
end)
it('fails to parse numbers with leading zeroes', function()
eq('Vim(call):E474: Leading zeroes are not allowed: 00.1',
exc_exec('call json_decode("00.1")'))
eq('Vim(call):E474: Leading zeroes are not allowed: 01',
exc_exec('call json_decode("01")'))
eq('Vim(call):E474: Leading zeroes are not allowed: -01',
exc_exec('call json_decode("-01")'))
eq('Vim(call):E474: Leading zeroes are not allowed: -001.0',
exc_exec('call json_decode("-001.0")'))
end)
it('fails to parse incomplete numbers', function()
eq('Vim(call):E474: Missing number after minus sign: -.1',
exc_exec('call json_decode("-.1")'))
eq('Vim(call):E474: Missing number after minus sign: -',
exc_exec('call json_decode("-")'))
eq('Vim(call):E474: Missing number after decimal dot: -1.',
exc_exec('call json_decode("-1.")'))
eq('Vim(call):E474: Missing number after decimal dot: 0.',
exc_exec('call json_decode("0.")'))
eq('Vim(call):E474: Missing exponent: 0.0e',
exc_exec('call json_decode("0.0e")'))
eq('Vim(call):E474: Missing exponent: 0.0e+',
exc_exec('call json_decode("0.0e+")'))
eq('Vim(call):E474: Missing exponent: 0.0e-',
exc_exec('call json_decode("0.0e-")'))
eq('Vim(call):E474: Missing exponent: 0.0e-',
exc_exec('call json_decode("0.0e-")'))
eq('Vim(call):E474: Missing number after decimal dot: 1.e5',
exc_exec('call json_decode("1.e5")'))
eq('Vim(call):E474: Missing number after decimal dot: 1.e+5',
exc_exec('call json_decode("1.e+5")'))
eq('Vim(call):E474: Missing number after decimal dot: 1.e+',
exc_exec('call json_decode("1.e+")'))
end)
it('parses floating-point numbers', function()
eq('100000.0', eval('string(json_decode("100000.0"))'))
eq(100000.5, funcs.json_decode('100000.5'))
eq(-100000.5, funcs.json_decode('-100000.5'))
eq(-100000.5e50, funcs.json_decode('-100000.5e50'))
eq(100000.5e50, funcs.json_decode('100000.5e50'))
eq(100000.5e50, funcs.json_decode('100000.5e+50'))
eq(-100000.5e-50, funcs.json_decode('-100000.5e-50'))
eq(100000.5e-50, funcs.json_decode('100000.5e-50'))
eq(100000e-50, funcs.json_decode('100000e-50'))
eq(0.5, funcs.json_decode('0.5'))
eq(0.005, funcs.json_decode('0.005'))
eq(0.005, funcs.json_decode('0.00500'))
eq(0.5, funcs.json_decode('0.00500e+002'))
eq(0.00005, funcs.json_decode('0.00500e-002'))
eq(-0.0, funcs.json_decode('-0.0'))
eq(-0.0, funcs.json_decode('-0.0e0'))
eq(-0.0, funcs.json_decode('-0.0e+0'))
eq(-0.0, funcs.json_decode('-0.0e-0'))
eq(-0.0, funcs.json_decode('-0e-0'))
eq(-0.0, funcs.json_decode('-0e-2'))
eq(-0.0, funcs.json_decode('-0e+2'))
eq(0.0, funcs.json_decode('0.0'))
eq(0.0, funcs.json_decode('0.0e0'))
eq(0.0, funcs.json_decode('0.0e+0'))
eq(0.0, funcs.json_decode('0.0e-0'))
eq(0.0, funcs.json_decode('0e-0'))
eq(0.0, funcs.json_decode('0e-2'))
eq(0.0, funcs.json_decode('0e+2'))
end)
it('fails to parse numbers with spaces inside', function()
eq('Vim(call):E474: Missing number after minus sign: - 1000',
exc_exec('call json_decode("- 1000")'))
eq('Vim(call):E474: Missing number after decimal dot: 0. ',
exc_exec('call json_decode("0. ")'))
eq('Vim(call):E474: Missing number after decimal dot: 0. 0',
exc_exec('call json_decode("0. 0")'))
eq('Vim(call):E474: Missing exponent: 0.0e 1',
exc_exec('call json_decode("0.0e 1")'))
eq('Vim(call):E474: Missing exponent: 0.0e+ 1',
exc_exec('call json_decode("0.0e+ 1")'))
eq('Vim(call):E474: Missing exponent: 0.0e- 1',
exc_exec('call json_decode("0.0e- 1")'))
end)
it('fails to parse "," and ":"', function()
eq('Vim(call):E474: Comma not inside container: , ',
exc_exec('call json_decode(" , ")'))
eq('Vim(call):E474: Colon not inside container: : ',
exc_exec('call json_decode(" : ")'))
end)
it('parses empty containers', function()
eq({}, funcs.json_decode('[]'))
eq('[]', eval('string(json_decode("[]"))'))
end)
it('fails to parse "[" and "{"', function()
eq('Vim(call):E474: Unexpected end of input: {',
exc_exec('call json_decode("{")'))
eq('Vim(call):E474: Unexpected end of input: [',
exc_exec('call json_decode("[")'))
end)
it('fails to parse "}" and "]"', function()
eq('Vim(call):E474: No container to close: ]',
exc_exec('call json_decode("]")'))
eq('Vim(call):E474: No container to close: }',
exc_exec('call json_decode("}")'))
end)
it('fails to parse containers which are closed by different brackets',
function()
eq('Vim(call):E474: Closing dictionary with square bracket: ]',
exc_exec('call json_decode("{]")'))
eq('Vim(call):E474: Closing list with curly bracket: }',
exc_exec('call json_decode("[}")'))
end)
it('fails to parse concat inside container', function()
eq('Vim(call):E474: Expected comma before list item: []]',
exc_exec('call json_decode("[[][]]")'))
eq('Vim(call):E474: Expected comma before list item: {}]',
exc_exec('call json_decode("[{}{}]")'))
eq('Vim(call):E474: Expected comma before list item: ]',
exc_exec('call json_decode("[1 2]")'))
eq('Vim(call):E474: Expected comma before dictionary key: ": 4}',
exc_exec('call json_decode("{\\"1\\": 2 \\"3\\": 4}")'))
eq('Vim(call):E474: Expected colon before dictionary value: , "3" 4}',
exc_exec('call json_decode("{\\"1\\" 2, \\"3\\" 4}")'))
end)
it('fails to parse containers with leading comma or colon', function()
eq('Vim(call):E474: Leading comma: ,}',
exc_exec('call json_decode("{,}")'))
eq('Vim(call):E474: Leading comma: ,]',
exc_exec('call json_decode("[,]")'))
eq('Vim(call):E474: Using colon not in dictionary: :]',
exc_exec('call json_decode("[:]")'))
eq('Vim(call):E474: Unexpected colon: :}',
exc_exec('call json_decode("{:}")'))
end)
it('fails to parse containers with trailing comma', function()
eq('Vim(call):E474: Trailing comma: ]',
exc_exec('call json_decode("[1,]")'))
eq('Vim(call):E474: Trailing comma: }',
exc_exec('call json_decode("{\\"1\\": 2,}")'))
end)
it('fails to parse dictionaries with missing value', function()
eq('Vim(call):E474: Expected value after colon: }',
exc_exec('call json_decode("{\\"1\\":}")'))
eq('Vim(call):E474: Expected value: }',
exc_exec('call json_decode("{\\"1\\"}")'))
end)
it('fails to parse containers with two commas or colons', function()
eq('Vim(call):E474: Duplicate comma: , "2": 2}',
exc_exec('call json_decode("{\\"1\\": 1,, \\"2\\": 2}")'))
eq('Vim(call):E474: Duplicate comma: , "2", 2]',
exc_exec('call json_decode("[\\"1\\", 1,, \\"2\\", 2]")'))
eq('Vim(call):E474: Duplicate colon: : 2}',
exc_exec('call json_decode("{\\"1\\": 1, \\"2\\":: 2}")'))
eq('Vim(call):E474: Comma after colon: , 2}',
exc_exec('call json_decode("{\\"1\\": 1, \\"2\\":, 2}")'))
eq('Vim(call):E474: Unexpected colon: : "2": 2}',
exc_exec('call json_decode("{\\"1\\": 1,: \\"2\\": 2}")'))
eq('Vim(call):E474: Unexpected colon: :, "2": 2}',
exc_exec('call json_decode("{\\"1\\": 1:, \\"2\\": 2}")'))
end)
it('fails to parse concat of two values', function()
eq('Vim(call):E474: Trailing characters: []',
exc_exec('call json_decode("{}[]")'))
end)
it('parses containers', function()
eq({1}, funcs.json_decode('[1]'))
eq({NIL, 1}, funcs.json_decode('[null, 1]'))
eq({['1']=2}, funcs.json_decode('{"1": 2}'))
eq({['1']=2, ['3']={{['4']={['5']={{}, 1}}}}},
funcs.json_decode('{"1": 2, "3": [{"4": {"5": [[], 1]}}]}'))
end)
it('fails to parse incomplete strings', function()
eq('Vim(call):E474: Expected string end: \t"',
exc_exec('call json_decode("\\t\\"")'))
eq('Vim(call):E474: Expected string end: \t"abc',
exc_exec('call json_decode("\\t\\"abc")'))
eq('Vim(call):E474: Unfinished escape sequence: \t"abc\\',
exc_exec('call json_decode("\\t\\"abc\\\\")'))
eq('Vim(call):E474: Unfinished unicode escape sequence: \t"abc\\u',
exc_exec('call json_decode("\\t\\"abc\\\\u")'))
eq('Vim(call):E474: Unfinished unicode escape sequence: \t"abc\\u0',
exc_exec('call json_decode("\\t\\"abc\\\\u0")'))
eq('Vim(call):E474: Unfinished unicode escape sequence: \t"abc\\u00',
exc_exec('call json_decode("\\t\\"abc\\\\u00")'))
eq('Vim(call):E474: Unfinished unicode escape sequence: \t"abc\\u000',
exc_exec('call json_decode("\\t\\"abc\\\\u000")'))
eq('Vim(call):E474: Expected four hex digits after \\u: \\u" ',
exc_exec('call json_decode("\\t\\"abc\\\\u\\" ")'))
eq('Vim(call):E474: Expected four hex digits after \\u: \\u0" ',
exc_exec('call json_decode("\\t\\"abc\\\\u0\\" ")'))
eq('Vim(call):E474: Expected four hex digits after \\u: \\u00" ',
exc_exec('call json_decode("\\t\\"abc\\\\u00\\" ")'))
eq('Vim(call):E474: Expected four hex digits after \\u: \\u000" ',
exc_exec('call json_decode("\\t\\"abc\\\\u000\\" ")'))
eq('Vim(call):E474: Expected string end: \t"abc\\u0000',
exc_exec('call json_decode("\\t\\"abc\\\\u0000")'))
end)
it('fails to parse unknown escape sequnces', function()
eq('Vim(call):E474: Unknown escape sequence: \\a"',
exc_exec('call json_decode("\\t\\"\\\\a\\"")'))
end)
it('parses strings properly', function()
eq('\n', funcs.json_decode('"\\n"'))
eq('', funcs.json_decode('""'))
eq('\\/"\t\b\n\r\f', funcs.json_decode([["\\\/\"\t\b\n\r\f"]]))
eq('/a', funcs.json_decode([["\/a"]]))
-- Unicode characters: 2-byte, 3-byte, 4-byte
eq({
'«',
'ફ',
'\240\144\128\128',
}, funcs.json_decode({
'[',
'"«",',
'"ફ",',
'"\240\144\128\128"',
']',
}))
end)
it('fails on strings with invalid bytes', function()
eq('Vim(call):E474: Only UTF-8 strings allowed: \255"',
exc_exec('call json_decode("\\t\\"\\xFF\\"")'))
eq('Vim(call):E474: ASCII control characters cannot be present inside string: ',
exc_exec('call json_decode(["\\"\\n\\""])'))
-- 0xC2 starts 2-byte unicode character
eq('Vim(call):E474: Only UTF-8 strings allowed: \194"',
exc_exec('call json_decode("\\t\\"\\xC2\\"")'))
-- 0xE0 0xAA starts 3-byte unicode character
eq('Vim(call):E474: Only UTF-8 strings allowed: \224"',
exc_exec('call json_decode("\\t\\"\\xE0\\"")'))
eq('Vim(call):E474: Only UTF-8 strings allowed: \224\170"',
exc_exec('call json_decode("\\t\\"\\xE0\\xAA\\"")'))
-- 0xF0 0x90 0x80 starts 4-byte unicode character
eq('Vim(call):E474: Only UTF-8 strings allowed: \240"',
exc_exec('call json_decode("\\t\\"\\xF0\\"")'))
eq('Vim(call):E474: Only UTF-8 strings allowed: \240\144"',
exc_exec('call json_decode("\\t\\"\\xF0\\x90\\"")'))
eq('Vim(call):E474: Only UTF-8 strings allowed: \240\144\128"',
exc_exec('call json_decode("\\t\\"\\xF0\\x90\\x80\\"")'))
-- 0xF9 0x80 0x80 0x80 starts 5-byte unicode character
eq('Vim(call):E474: Only UTF-8 strings allowed: \249"',
exc_exec('call json_decode("\\t\\"\\xF9\\"")'))
eq('Vim(call):E474: Only UTF-8 strings allowed: \249\128"',
exc_exec('call json_decode("\\t\\"\\xF9\\x80\\"")'))
eq('Vim(call):E474: Only UTF-8 strings allowed: \249\128\128"',
exc_exec('call json_decode("\\t\\"\\xF9\\x80\\x80\\"")'))
eq('Vim(call):E474: Only UTF-8 strings allowed: \249\128\128\128"',
exc_exec('call json_decode("\\t\\"\\xF9\\x80\\x80\\x80\\"")'))
-- 0xFC 0x90 0x80 0x80 0x80 starts 6-byte unicode character
eq('Vim(call):E474: Only UTF-8 strings allowed: \252"',
exc_exec('call json_decode("\\t\\"\\xFC\\"")'))
eq('Vim(call):E474: Only UTF-8 strings allowed: \252\144"',
exc_exec('call json_decode("\\t\\"\\xFC\\x90\\"")'))
eq('Vim(call):E474: Only UTF-8 strings allowed: \252\144\128"',
exc_exec('call json_decode("\\t\\"\\xFC\\x90\\x80\\"")'))
eq('Vim(call):E474: Only UTF-8 strings allowed: \252\144\128\128"',
exc_exec('call json_decode("\\t\\"\\xFC\\x90\\x80\\x80\\"")'))
eq('Vim(call):E474: Only UTF-8 strings allowed: \252\144\128\128\128"',
exc_exec('call json_decode("\\t\\"\\xFC\\x90\\x80\\x80\\x80\\"")'))
-- Specification does not allow unquoted characters above 0x10FFFF
eq('Vim(call):E474: Only UTF-8 code points up to U+10FFFF are allowed to appear unescaped: \249\128\128\128\128"',
exc_exec('call json_decode("\\t\\"\\xF9\\x80\\x80\\x80\\x80\\"")'))
eq('Vim(call):E474: Only UTF-8 code points up to U+10FFFF are allowed to appear unescaped: \252\144\128\128\128\128"',
exc_exec('call json_decode("\\t\\"\\xFC\\x90\\x80\\x80\\x80\\x80\\"")'))
-- '"\249\128\128\128\128"',
-- '"\252\144\128\128\128\128"',
end)
it('parses surrogate pairs properly', function()
eq('\240\144\128\128', funcs.json_decode('"\\uD800\\uDC00"'))
eq('\237\160\128a\237\176\128', funcs.json_decode('"\\uD800a\\uDC00"'))
eq('\237\160\128\t\237\176\128', funcs.json_decode('"\\uD800\\t\\uDC00"'))
eq('\237\160\128', funcs.json_decode('"\\uD800"'))
eq('\237\160\128a', funcs.json_decode('"\\uD800a"'))
eq('\237\160\128\t', funcs.json_decode('"\\uD800\\t"'))
eq('\237\176\128', funcs.json_decode('"\\uDC00"'))
eq('\237\176\128a', funcs.json_decode('"\\uDC00a"'))
eq('\237\176\128\t', funcs.json_decode('"\\uDC00\\t"'))
eq('\237\176\128', funcs.json_decode('"\\uDC00"'))
eq('a\237\176\128', funcs.json_decode('"a\\uDC00"'))
eq('\t\237\176\128', funcs.json_decode('"\\t\\uDC00"'))
eq('\237\160\128¬', funcs.json_decode('"\\uD800\\u00AC"'))
eq('\237\160\128\237\160\128', funcs.json_decode('"\\uD800\\uD800"'))
end)
local sp_decode_eq = function(expected, json)
meths.set_var('__json', json)
speq(expected, 'json_decode(g:__json)')
command('unlet! g:__json')
end
it('parses strings with NUL properly', function()
sp_decode_eq({_TYPE='string', _VAL={'\n'}}, '"\\u0000"')
sp_decode_eq({_TYPE='string', _VAL={'\n', '\n'}}, '"\\u0000\\n\\u0000"')
sp_decode_eq({_TYPE='string', _VAL={'\n«\n'}}, '"\\u0000\\u00AB\\u0000"')
end)
it('parses dictionaries with duplicate keys to special maps', function()
sp_decode_eq({_TYPE='map', _VAL={{'a', 1}, {'a', 2}}},
'{"a": 1, "a": 2}')
sp_decode_eq({_TYPE='map', _VAL={{'b', 3}, {'a', 1}, {'a', 2}}},
'{"b": 3, "a": 1, "a": 2}')
sp_decode_eq({_TYPE='map', _VAL={{'b', 3}, {'a', 1}, {'c', 4}, {'a', 2}}},
'{"b": 3, "a": 1, "c": 4, "a": 2}')
sp_decode_eq({_TYPE='map', _VAL={{'b', 3}, {'a', 1}, {'c', 4}, {'a', 2}, {'c', 4}}},
'{"b": 3, "a": 1, "c": 4, "a": 2, "c": 4}')
sp_decode_eq({{_TYPE='map', _VAL={{'b', 3}, {'a', 1}, {'c', 4}, {'a', 2}, {'c', 4}}}},
'[{"b": 3, "a": 1, "c": 4, "a": 2, "c": 4}]')
sp_decode_eq({{d={_TYPE='map', _VAL={{'b', 3}, {'a', 1}, {'c', 4}, {'a', 2}, {'c', 4}}}}},
'[{"d": {"b": 3, "a": 1, "c": 4, "a": 2, "c": 4}}]')
sp_decode_eq({1, {d={_TYPE='map', _VAL={{'b', 3}, {'a', 1}, {'c', 4}, {'a', 2}, {'c', 4}}}}},
'[1, {"d": {"b": 3, "a": 1, "c": 4, "a": 2, "c": 4}}]')
sp_decode_eq({1, {a={}, d={_TYPE='map', _VAL={{'b', 3}, {'a', 1}, {'c', 4}, {'a', 2}, {'c', 4}}}}},
'[1, {"a": [], "d": {"b": 3, "a": 1, "c": 4, "a": 2, "c": 4}}]')
end)
it('parses dictionaries with empty keys to special maps', function()
sp_decode_eq({_TYPE='map', _VAL={{'', 4}}},
'{"": 4}')
sp_decode_eq({_TYPE='map', _VAL={{'b', 3}, {'a', 1}, {'c', 4}, {'d', 2}, {'', 4}}},
'{"b": 3, "a": 1, "c": 4, "d": 2, "": 4}')
sp_decode_eq({_TYPE='map', _VAL={{'', 3}, {'a', 1}, {'c', 4}, {'d', 2}, {'', 4}}},
'{"": 3, "a": 1, "c": 4, "d": 2, "": 4}')
sp_decode_eq({{_TYPE='map', _VAL={{'', 3}, {'a', 1}, {'c', 4}, {'d', 2}, {'', 4}}}},
'[{"": 3, "a": 1, "c": 4, "d": 2, "": 4}]')
end)
it('parses dictionaries with keys with NUL bytes to special maps', function()
sp_decode_eq({_TYPE='map', _VAL={{{_TYPE='string', _VAL={'a\n', 'b'}}, 4}}},
'{"a\\u0000\\nb": 4}')
sp_decode_eq({_TYPE='map', _VAL={{{_TYPE='string', _VAL={'a\n', 'b', ''}}, 4}}},
'{"a\\u0000\\nb\\n": 4}')
sp_decode_eq({_TYPE='map', _VAL={{'b', 3}, {'a', 1}, {'c', 4}, {'d', 2}, {{_TYPE='string', _VAL={'\n'}}, 4}}},
'{"b": 3, "a": 1, "c": 4, "d": 2, "\\u0000": 4}')
end)
it('parses U+00C3 correctly', function()
eq('\195\131', funcs.json_decode('"\195\131"'))
end)
it('fails to parse empty string', function()
eq('Vim(call):E474: Attempt to decode a blank string',
exc_exec('call json_decode("")'))
eq('Vim(call):E474: Attempt to decode a blank string',
exc_exec('call json_decode([])'))
eq('Vim(call):E474: Attempt to decode a blank string',
exc_exec('call json_decode([""])'))
eq('Vim(call):E474: Attempt to decode a blank string',
exc_exec('call json_decode(" ")'))
eq('Vim(call):E474: Attempt to decode a blank string',
exc_exec('call json_decode("\\t")'))
eq('Vim(call):E474: Attempt to decode a blank string',
exc_exec('call json_decode("\\n")'))
eq('Vim(call):E474: Attempt to decode a blank string',
exc_exec('call json_decode(" \\t\\n \\n\\t\\t \\n\\t\\n \\n \\t\\n\\t ")'))
end)
it('accepts all spaces in every position where space may be put', function()
local s = ' \t\n\r \t\r\n \n\t\r \n\r\t \r\t\n \r\n\t\t \n\r\t \r\n\t\n \r\t\n\r \t\r \n\t\r\n \n \t\r\n \r\t\n\t \r\n\t\r \n\r \t\n\r\t \r \t\n\r \n\t\r\t \n\r\t\n \r\n \t\r\n\t'
local str = ('%s{%s"key"%s:%s[%s"val"%s,%s"val2"%s]%s,%s"key2"%s:%s1%s}%s'):gsub('%%s', s)
eq({key={'val', 'val2'}, key2=1}, funcs.json_decode(str))
end)
it('does not overflow when writing error message about decoding ["", ""]',
function()
eq('\nE474: Attempt to decode a blank string'
.. '\nE474: Failed to parse \n',
redir_exec('call json_decode(["", ""])'))
end)
end)
describe('json_encode() function', function()
before_each(function()
clear()
command('language C')
end)
it('dumps strings', function()
eq('"Test"', funcs.json_encode('Test'))
eq('""', funcs.json_encode(''))
eq('"\\t"', funcs.json_encode('\t'))
eq('"\\n"', funcs.json_encode('\n'))
eq('"\\u001B"', funcs.json_encode('\27'))
eq('"þÿþ"', funcs.json_encode('þÿþ'))
end)
it('dumps numbers', function()
eq('0', funcs.json_encode(0))
eq('10', funcs.json_encode(10))
eq('-10', funcs.json_encode(-10))
end)
it('dumps floats', function()
eq('0.0', eval('json_encode(0.0)'))
eq('10.5', funcs.json_encode(10.5))
eq('-10.5', funcs.json_encode(-10.5))
eq('-1.0e-5', funcs.json_encode(-1e-5))
eq('1.0e50', eval('json_encode(1.0e50)'))
end)
it('fails to dump NaN and infinite values', function()
eq('Vim(call):E474: Unable to represent NaN value in JSON',
exc_exec('call json_encode(str2float("nan"))'))
eq('Vim(call):E474: Unable to represent infinity in JSON',
exc_exec('call json_encode(str2float("inf"))'))
eq('Vim(call):E474: Unable to represent infinity in JSON',
exc_exec('call json_encode(-str2float("inf"))'))
end)
it('dumps lists', function()
eq('[]', funcs.json_encode({}))
eq('[[]]', funcs.json_encode({{}}))
eq('[[], []]', funcs.json_encode({{}, {}}))
end)
it('dumps dictionaries', function()
eq('{}', eval('json_encode({})'))
eq('{"d": []}', funcs.json_encode({d={}}))
eq('{"d": [], "e": []}', funcs.json_encode({d={}, e={}}))
end)
it('cannot dump generic mapping with generic mapping keys and values',
function()
command('let todump = {"_TYPE": v:msgpack_types.map, "_VAL": []}')
command('let todumpv1 = {"_TYPE": v:msgpack_types.map, "_VAL": []}')
command('let todumpv2 = {"_TYPE": v:msgpack_types.map, "_VAL": []}')
command('call add(todump._VAL, [todumpv1, todumpv2])')
eq('Vim(call):E474: Invalid key in special dictionary', exc_exec('call json_encode(todump)'))
end)
it('cannot dump generic mapping with ext key', function()
command('let todump = {"_TYPE": v:msgpack_types.ext, "_VAL": [5, ["",""]]}')
command('let todump = {"_TYPE": v:msgpack_types.map, "_VAL": [[todump, 1]]}')
eq('Vim(call):E474: Invalid key in special dictionary', exc_exec('call json_encode(todump)'))
end)
it('cannot dump generic mapping with array key', function()
command('let todump = {"_TYPE": v:msgpack_types.array, "_VAL": [5, [""]]}')
command('let todump = {"_TYPE": v:msgpack_types.map, "_VAL": [[todump, 1]]}')
eq('Vim(call):E474: Invalid key in special dictionary', exc_exec('call json_encode(todump)'))
end)
it('cannot dump generic mapping with UINT64_MAX key', function()
command('let todump = {"_TYPE": v:msgpack_types.integer}')
command('let todump._VAL = [1, 3, 0x7FFFFFFF, 0x7FFFFFFF]')
command('let todump = {"_TYPE": v:msgpack_types.map, "_VAL": [[todump, 1]]}')
eq('Vim(call):E474: Invalid key in special dictionary', exc_exec('call json_encode(todump)'))
end)
it('cannot dump generic mapping with floating-point key', function()
command('let todump = {"_TYPE": v:msgpack_types.float, "_VAL": 0.125}')
command('let todump = {"_TYPE": v:msgpack_types.map, "_VAL": [[todump, 1]]}')
eq('Vim(call):E474: Invalid key in special dictionary', exc_exec('call json_encode(todump)'))
end)
it('can dump generic mapping with STR special key and NUL', function()
command('let todump = {"_TYPE": v:msgpack_types.string, "_VAL": ["\\n"]}')
command('let todump = {"_TYPE": v:msgpack_types.map, "_VAL": [[todump, 1]]}')
eq('{"\\u0000": 1}', eval('json_encode(todump)'))
end)
it('can dump generic mapping with BIN special key and NUL', function()
command('let todump = {"_TYPE": v:msgpack_types.binary, "_VAL": ["\\n"]}')
command('let todump = {"_TYPE": v:msgpack_types.map, "_VAL": [[todump, 1]]}')
eq('{"\\u0000": 1}', eval('json_encode(todump)'))
end)
it('can dump STR special mapping with NUL and NL', function()
command('let todump = {"_TYPE": v:msgpack_types.string, "_VAL": ["\\n", ""]}')
eq('"\\u0000\\n"', eval('json_encode(todump)'))
end)
it('can dump BIN special mapping with NUL and NL', function()
command('let todump = {"_TYPE": v:msgpack_types.binary, "_VAL": ["\\n", ""]}')
eq('"\\u0000\\n"', eval('json_encode(todump)'))
end)
it('cannot dump special ext mapping', function()
command('let todump = {"_TYPE": v:msgpack_types.ext, "_VAL": [5, ["",""]]}')
eq('Vim(call):E474: Unable to convert EXT string to JSON', exc_exec('call json_encode(todump)'))
end)
it('can dump special array mapping', function()
command('let todump = {"_TYPE": v:msgpack_types.array, "_VAL": [5, [""]]}')
eq('[5, [""]]', eval('json_encode(todump)'))
end)
it('can dump special UINT64_MAX mapping', function()
command('let todump = {"_TYPE": v:msgpack_types.integer}')
command('let todump._VAL = [1, 3, 0x7FFFFFFF, 0x7FFFFFFF]')
eq('18446744073709551615', eval('json_encode(todump)'))
end)
it('can dump special INT64_MIN mapping', function()
command('let todump = {"_TYPE": v:msgpack_types.integer}')
command('let todump._VAL = [-1, 2, 0, 0]')
eq('-9223372036854775808', eval('json_encode(todump)'))
end)
it('can dump special BOOLEAN true mapping', function()
command('let todump = {"_TYPE": v:msgpack_types.boolean, "_VAL": 1}')
eq('true', eval('json_encode(todump)'))
end)
it('can dump special BOOLEAN false mapping', function()
command('let todump = {"_TYPE": v:msgpack_types.boolean, "_VAL": 0}')
eq('false', eval('json_encode(todump)'))
end)
it('can dump special NIL mapping', function()
command('let todump = {"_TYPE": v:msgpack_types.nil, "_VAL": 0}')
eq('null', eval('json_encode(todump)'))
end)
it('fails to dump a function reference', function()
eq('Vim(call):E474: Error while dumping encode_tv2json() argument, itself: attempt to dump function reference',
exc_exec('call json_encode(function("tr"))'))
end)
it('fails to dump a partial', function()
command('function T() dict\nendfunction')
eq('Vim(call):E474: Error while dumping encode_tv2json() argument, itself: attempt to dump function reference',
exc_exec('call json_encode(function("T", [1, 2], {}))'))
end)
it('fails to dump a function reference in a list', function()
eq('Vim(call):E474: Error while dumping encode_tv2json() argument, index 0: attempt to dump function reference',
exc_exec('call json_encode([function("tr")])'))
end)
it('fails to dump a recursive list', function()
command('let todump = [[[]]]')
command('call add(todump[0][0], todump)')
eq('Vim(call):E724: unable to correctly dump variable with self-referencing container',
exc_exec('call json_encode(todump)'))
end)
it('fails to dump a recursive dict', function()
command('let todump = {"d": {"d": {}}}')
command('call extend(todump.d.d, {"d": todump})')
eq('Vim(call):E724: unable to correctly dump variable with self-referencing container',
exc_exec('call json_encode([todump])'))
end)
it('can dump dict with two same dicts inside', function()
command('let inter = {}')
command('let todump = {"a": inter, "b": inter}')
eq('{"a": {}, "b": {}}', eval('json_encode(todump)'))
end)
it('can dump list with two same lists inside', function()
command('let inter = []')
command('let todump = [inter, inter]')
eq('[[], []]', eval('json_encode(todump)'))
end)
it('fails to dump a recursive list in a special dict', function()
command('let todump = {"_TYPE": v:msgpack_types.array, "_VAL": []}')
command('call add(todump._VAL, todump)')
eq('Vim(call):E724: unable to correctly dump variable with self-referencing container',
exc_exec('call json_encode(todump)'))
end)
it('fails to dump a recursive (val) map in a special dict', function()
command('let todump = {"_TYPE": v:msgpack_types.map, "_VAL": []}')
command('call add(todump._VAL, ["", todump])')
eq('Vim(call):E724: unable to correctly dump variable with self-referencing container',
exc_exec('call json_encode([todump])'))
end)
it('fails to dump a recursive (val) map in a special dict, _VAL reference', function()
command('let todump = {"_TYPE": v:msgpack_types.map, "_VAL": [["", []]]}')
command('call add(todump._VAL[0][1], todump._VAL)')
eq('Vim(call):E724: unable to correctly dump variable with self-referencing container',
exc_exec('call json_encode(todump)'))
end)
it('fails to dump a recursive (val) special list in a special dict',
function()
command('let todump = {"_TYPE": v:msgpack_types.array, "_VAL": []}')
command('call add(todump._VAL, ["", todump._VAL])')
eq('Vim(call):E724: unable to correctly dump variable with self-referencing container',
exc_exec('call json_encode(todump)'))
end)
it('fails when called with no arguments', function()
eq('Vim(call):E119: Not enough arguments for function: json_encode',
exc_exec('call json_encode()'))
end)
it('fails when called with two arguments', function()
eq('Vim(call):E118: Too many arguments for function: json_encode',
exc_exec('call json_encode(["", ""], 1)'))
end)
it('ignores improper values in &isprint', function()
meths.set_option('isprint', '1')
eq(1, eval('"\1" =~# "\\\\p"'))
eq('"\\u0001"', funcs.json_encode('\1'))
end)
it('fails when using surrogate character in a UTF-8 string', function()
eq('Vim(call):E474: UTF-8 string contains code point which belongs to a surrogate pair: \237\160\128',
exc_exec('call json_encode("\237\160\128")'))
eq('Vim(call):E474: UTF-8 string contains code point which belongs to a surrogate pair: \237\175\191',
exc_exec('call json_encode("\237\175\191")'))
end)
it('dumps control characters as expected', function()
eq([["\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000B\f\r\u000E\u000F\u0010\u0011\u0012\u0013"]],
eval('json_encode({"_TYPE": v:msgpack_types.string, "_VAL": ["\n\1\2\3\4\5\6\7\8\9", "\11\12\13\14\15\16\17\18\19"]})'))
end)
it('can dump NULL string', function()
eq('""', eval('json_encode($XXX_UNEXISTENT_VAR_XXX)'))
end)
it('can dump NULL list', function()
eq('[]', eval('json_encode(v:_null_list)'))
end)
it('can dump NULL dictionary', function()
eq('{}', eval('json_encode(v:_null_dict)'))
end)
end)
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