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eval/encode: Make sure that encoder can encode NULL variables

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Adds two undocumented v: variables: _null_list and _null_dict because I do not 
know a reproducible way to get such lists (though I think I heard about this) 
and dictionaries (do not remember hearing about them). NULL strings are obtained 
using $XXX_UNEXISTENT_VAR_XXX.

Fixes crash in json_encode($XXX_UNEXISTENT_VAR_XXX). Other added tests worked 
fine before this commit.
This commit is contained in:
ZyX
2016-04-04 04:53:07 +03:00
parent c4f1b5a938
commit bda0165514
7 changed files with 89 additions and 1 deletions
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12
test/functional/eval/json_functions_spec.lua
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@@ -784,4 +784,16 @@ describe('json_encode() function', function()
eq([["\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000B\f\r\u000E\u000F\u0010\u0011\u0012\u0013"]],
eval('json_encode({"_TYPE": v:msgpack_types.string, "_VAL": ["\n\1\2\3\4\5\6\7\8\9", "\11\12\13\14\15\16\17\18\19"]})'))
end)
it('can dump NULL string', function()
eq('""', eval('json_encode($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)