v2 / vlib / v / tests / options / none_checking_test.v
42 lines · 37 sloc · 468 bytes · 6488041a749df9762348d019c4223908c476f2e2
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1struct Test {


2    a ?string


3    b ?int


4    c ?u8


5    d ?fn (int)


6}


7


8fn test_main() {


9    a := ?int(none)


10


11    if a == none {


12        assert true


13    } else {


14        assert false


15    }


16


17    b := Test{}


18    if b.a == none {


19        assert true


20    } else {


21        assert false


22    }


23


24    c := ?Test(Test{})


25    if c?.a == none {


26        assert true


27    } else {


28        assert false


29    }


30}


31


32fn test_comptime() {


33    t := Test{}


34    $for f in Test.fields {


35        println('${f.name}')


36        if t.$(f.name) == none {


37            assert true


38        } else {


39            assert false


40        }


41    }


42}


43