v / vlib / json / tests / json_option_none_test.v
46 lines · 37 sloc · 757 bytes · 8ebbacecd60366ac4ba68aa35f9b0e7a0e56ff61
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1import json


2


3struct Struct {


4    a int


5}


6


7struct Test {


8    a ?int


9    b ?string


10    c ?Struct


11}


12


13fn test_main() {


14    a := json.decode(Test, '{"a": 1, "b": "foo"}')!


15    dump(a)


16


17    assert a.a != none


18    assert a.b != none


19


20    b := json.decode(Test, '{"a": 1}')!


21    dump(b)


22    assert b.a != none


23    assert b.b == none


24


25    c := json.decode(Test, '{"a": 1, "b": null}')!


26    dump(b)


27    assert c.a != none


28    assert c.b == none


29


30    d := json.decode(Test, '{"a": null, "b": null}')!


31    dump(d)


32    assert d.a == none


33    assert d.b == none


34


35    e := json.decode(Test, '{"a": null, "b": null, "c": null}')!


36    dump(e)


37    assert e.a == none


38    assert e.b == none


39    assert e.c == none


40


41    f := json.decode(Test, '{"a": null, "b": null, "c": {"a":1}}')!


42    dump(f)


43    assert f.a == none


44    assert f.b == none


45    assert f.c != none


46}


47