mpack_spec.lua (1518B)
1 -- Test suite for testing interactions with API bindings 2 local t = require('test.testutil') 3 local n = require('test.functional.testnvim')() 4 5 local clear = n.clear 6 local eq = t.eq 7 local exec_lua = n.exec_lua 8 9 describe('lua vim.mpack', function() 10 before_each(clear) 11 it('encodes vim.NIL', function() 12 eq( 13 { true, true, true, true }, 14 exec_lua(function() 15 local var = vim.mpack.decode(vim.mpack.encode({ 33, vim.NIL, 77 })) 16 return { var[1] == 33, var[2] == vim.NIL, var[3] == 77, var[4] == nil } 17 end) 18 ) 19 end) 20 21 it('encodes vim.empty_dict()', function() 22 eq( 23 { { {}, 'foo', {} }, true, false }, 24 exec_lua(function() 25 local var = vim.mpack.decode(vim.mpack.encode({ {}, 'foo', vim.empty_dict() })) 26 return { var, vim.islist(var[1]), vim.islist(var[3]) } 27 end) 28 ) 29 end) 30 31 it('encodes dict keys of length 20-31 as fixstr #32784', function() 32 -- MessagePack fixstr format: 0xa0 | length (for lengths 0-31) 33 -- Before #36737, strings 20-31 bytes were incorrectly encoded as str8 (0xd9, len) 34 for len = 20, 31 do 35 local expected_header = string.char(0xa0 + len) -- fixstr header 36 local result = exec_lua(function(keylen) 37 local key = string.rep('x', keylen) 38 return vim.mpack.encode({ [key] = 1 }) 39 end, len) 40 -- Byte 1 is fixmap header (0x81), byte 2 should be fixstr header for the key 41 eq(expected_header, result:sub(2, 2), 'dict key length ' .. len .. ' should use fixstr') 42 end 43 end) 44 end)