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49 lines
1.5 KiB
Lua
49 lines
1.5 KiB
Lua
local helpers = require('test.unit.helpers')(after_each)
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local itp = helpers.gen_itp(it)
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local cimport = helpers.cimport
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local to_cstr = helpers.to_cstr
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local ffi = helpers.ffi
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local eq = helpers.eq
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local eval = cimport('./src/nvim/eval.h', './src/nvim/eval/typval.h',
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'./src/nvim/memory.h')
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local eval0 = function(expr)
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local tv = ffi.gc(ffi.new('typval_T', {v_type=eval.VAR_UNKNOWN}),
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eval.tv_clear)
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if eval.eval0(to_cstr(expr), tv, nil, true) == 0 then
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return nil
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else
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return tv
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end
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end
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describe('NULL typval_T', function()
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itp('is produced by $XXX_UNEXISTENT_VAR_XXX', function()
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-- Required for various tests which need to check whether typval_T with NULL
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-- string works correctly. This test checks that unexistent environment
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-- variable produces NULL string, not that some specific environment
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-- variable does not exist. Last bit is left for the test writers.
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local unexistent_env = 'XXX_UNEXISTENT_VAR_XXX'
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while os.getenv(unexistent_env) ~= nil do
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unexistent_env = unexistent_env .. '_XXX'
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end
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local rettv = eval0('$' .. unexistent_env)
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eq(eval.VAR_STRING, rettv.v_type)
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eq(nil, rettv.vval.v_string)
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end)
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itp('is produced by v:_null_list', function()
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local rettv = eval0('v:_null_list')
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eq(eval.VAR_LIST, rettv.v_type)
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eq(nil, rettv.vval.v_list)
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end)
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itp('is produced by v:_null_dict', function()
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local rettv = eval0('v:_null_dict')
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eq(eval.VAR_DICT, rettv.v_type)
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eq(nil, rettv.vval.v_dict)
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end)
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end)
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