File: //home/ubuntu/neovim/test/functional/lua/json_spec.lua
local t = require('test.testutil')
local n = require('test.functional.testnvim')()
local clear = n.clear
local exec_lua = n.exec_lua
local eq = t.eq
local pcall_err = t.pcall_err
describe('vim.json.decode()', function()
before_each(function()
clear()
end)
it('parses null, true, false', function()
eq(vim.NIL, exec_lua([[return vim.json.decode('null')]]))
eq(true, exec_lua([[return vim.json.decode('true')]]))
eq(false, exec_lua([[return vim.json.decode('false')]]))
end)
it('validation', function()
eq(
'Expected object key string but found invalid token at character 2',
pcall_err(exec_lua, [[return vim.json.decode('{a:"b"}')]])
)
end)
it('options', function()
local jsonstr = '{"arr":[1,2,null],"bar":[3,7],"foo":{"a":"b"},"baz":null}'
eq({
arr = { 1, 2, vim.NIL },
bar = { 3, 7 },
baz = vim.NIL,
foo = { a = 'b' },
}, exec_lua([[return vim.json.decode(..., {})]], jsonstr))
eq(
{
arr = { 1, 2, vim.NIL },
bar = { 3, 7 },
baz = vim.NIL,
foo = { a = 'b' },
},
exec_lua(
[[return vim.json.decode(..., { luanil = { array = false, object = false } })]],
jsonstr
)
)
eq({
arr = { 1, 2, vim.NIL },
bar = { 3, 7 },
-- baz = nil,
foo = { a = 'b' },
}, exec_lua([[return vim.json.decode(..., { luanil = { object = true } })]], jsonstr))
eq({
arr = { 1, 2 },
bar = { 3, 7 },
baz = vim.NIL,
foo = { a = 'b' },
}, exec_lua([[return vim.json.decode(..., { luanil = { array = true } })]], jsonstr))
eq(
{
arr = { 1, 2 },
bar = { 3, 7 },
-- baz = nil,
foo = { a = 'b' },
},
exec_lua(
[[return vim.json.decode(..., { luanil = { array = true, object = true } })]],
jsonstr
)
)
end)
it('parses integer numbers', function()
eq(100000, exec_lua([[return vim.json.decode('100000')]]))
eq(-100000, exec_lua([[return vim.json.decode('-100000')]]))
eq(100000, exec_lua([[return vim.json.decode(' 100000 ')]]))
eq(-100000, exec_lua([[return vim.json.decode(' -100000 ')]]))
eq(0, exec_lua([[return vim.json.decode('0')]]))
eq(0, exec_lua([[return vim.json.decode('-0')]]))
end)
it('parses floating-point numbers', function()
-- This behavior differs from vim.fn.json_decode, which return '100000.0'
eq('100000', exec_lua([[return tostring(vim.json.decode('100000.0'))]]))
eq(100000.5, exec_lua([[return vim.json.decode('100000.5')]]))
eq(-100000.5, exec_lua([[return vim.json.decode('-100000.5')]]))
eq(-100000.5e50, exec_lua([[return vim.json.decode('-100000.5e50')]]))
eq(100000.5e50, exec_lua([[return vim.json.decode('100000.5e50')]]))
eq(100000.5e50, exec_lua([[return vim.json.decode('100000.5e+50')]]))
eq(-100000.5e-50, exec_lua([[return vim.json.decode('-100000.5e-50')]]))
eq(100000.5e-50, exec_lua([[return vim.json.decode('100000.5e-50')]]))
eq(100000e-50, exec_lua([[return vim.json.decode('100000e-50')]]))
eq(0.5, exec_lua([[return vim.json.decode('0.5')]]))
eq(0.005, exec_lua([[return vim.json.decode('0.005')]]))
eq(0.005, exec_lua([[return vim.json.decode('0.00500')]]))
eq(0.5, exec_lua([[return vim.json.decode('0.00500e+002')]]))
eq(0.00005, exec_lua([[return vim.json.decode('0.00500e-002')]]))
eq(-0.0, exec_lua([[return vim.json.decode('-0.0')]]))
eq(-0.0, exec_lua([[return vim.json.decode('-0.0e0')]]))
eq(-0.0, exec_lua([[return vim.json.decode('-0.0e+0')]]))
eq(-0.0, exec_lua([[return vim.json.decode('-0.0e-0')]]))
eq(-0.0, exec_lua([[return vim.json.decode('-0e-0')]]))
eq(-0.0, exec_lua([[return vim.json.decode('-0e-2')]]))
eq(-0.0, exec_lua([[return vim.json.decode('-0e+2')]]))
eq(0.0, exec_lua([[return vim.json.decode('0.0')]]))
eq(0.0, exec_lua([[return vim.json.decode('0.0e0')]]))
eq(0.0, exec_lua([[return vim.json.decode('0.0e+0')]]))
eq(0.0, exec_lua([[return vim.json.decode('0.0e-0')]]))
eq(0.0, exec_lua([[return vim.json.decode('0e-0')]]))
eq(0.0, exec_lua([[return vim.json.decode('0e-2')]]))
eq(0.0, exec_lua([[return vim.json.decode('0e+2')]]))
end)
it('parses containers', function()
eq({ 1 }, exec_lua([[return vim.json.decode('[1]')]]))
eq({ vim.NIL, 1 }, exec_lua([[return vim.json.decode('[null, 1]')]]))
eq({ ['1'] = 2 }, exec_lua([[return vim.json.decode('{"1": 2}')]]))
eq(
{ ['1'] = 2, ['3'] = { { ['4'] = { ['5'] = { {}, 1 } } } } },
exec_lua([[return vim.json.decode('{"1": 2, "3": [{"4": {"5": [ [], 1]}}]}')]])
)
-- Empty string is a valid key. #20757
eq({ [''] = 42 }, exec_lua([[return vim.json.decode('{"": 42}')]]))
end)
it('parses strings properly', function()
eq('\n', exec_lua([=[return vim.json.decode([["\n"]])]=]))
eq('', exec_lua([=[return vim.json.decode([[""]])]=]))
eq('\\/"\t\b\n\r\f', exec_lua([=[return vim.json.decode([["\\\/\"\t\b\n\r\f"]])]=]))
eq('/a', exec_lua([=[return vim.json.decode([["\/a"]])]=]))
-- Unicode characters: 2-byte, 3-byte
eq('«', exec_lua([=[return vim.json.decode([["«"]])]=]))
eq('ફ', exec_lua([=[return vim.json.decode([["ફ"]])]=]))
end)
it('parses surrogate pairs properly', function()
eq('\240\144\128\128', exec_lua([[return vim.json.decode('"\\uD800\\uDC00"')]]))
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 }, exec_lua([[return vim.json.decode(...)]], str))
end)
end)
describe('vim.json.encode()', function()
before_each(function()
clear()
end)
it('dumps strings', function()
eq('"Test"', exec_lua([[return vim.json.encode('Test')]]))
eq('""', exec_lua([[return vim.json.encode('')]]))
eq('"\\t"', exec_lua([[return vim.json.encode('\t')]]))
eq('"\\n"', exec_lua([[return vim.json.encode('\n')]]))
-- vim.fn.json_encode return \\u001B
eq('"\\u001b"', exec_lua([[return vim.json.encode('\27')]]))
eq('"þÿþ"', exec_lua([[return vim.json.encode('þÿþ')]]))
end)
it('dumps numbers', function()
eq('0', exec_lua([[return vim.json.encode(0)]]))
eq('10', exec_lua([[return vim.json.encode(10)]]))
eq('-10', exec_lua([[return vim.json.encode(-10)]]))
end)
it('dumps floats', function()
eq('10.5', exec_lua([[return vim.json.encode(10.5)]]))
eq('-10.5', exec_lua([[return vim.json.encode(-10.5)]]))
eq('-1e-05', exec_lua([[return vim.json.encode(-1e-5)]]))
end)
it('dumps lists', function()
eq('[]', exec_lua([[return vim.json.encode({})]]))
eq('[[]]', exec_lua([[return vim.json.encode({{}})]]))
eq('[[],[]]', exec_lua([[return vim.json.encode({{}, {}})]]))
end)
it('dumps dictionaries', function()
eq('{}', exec_lua([[return vim.json.encode(vim.empty_dict())]]))
eq('{"d":[]}', exec_lua([[return vim.json.encode({d={}})]]))
-- Empty string is a valid key. #20757
eq('{"":42}', exec_lua([[return vim.json.encode({['']=42})]]))
end)
it('dumps vim.NIL', function()
eq('null', exec_lua([[return vim.json.encode(vim.NIL)]]))
end)
end)