func TestUnionInStruct(t *testing.T) {
var ss, out test_unions.SmallStruct
ss.PodUnion = &test_unions.PodUnionFInt8{10}
check(t, &ss, &out)
bytes, _, _ := encode(t, &ss)
if int(bytes[8*2]) != 16 {
t.Fatalf("Union does not start at the correct location in struct.")
}
}
func TestUnionInMap(t *testing.T) {
var ss, out test_unions.SmallStruct
ss.PodUnionMap = &map[string]test_unions.PodUnion{
"eight": &test_unions.PodUnionFInt8{8},
"sixteen": &test_unions.PodUnionFInt16{16},
"sixty-four": &test_unions.PodUnionFUint64{64},
"bool": &test_unions.PodUnionFBool{true},
"enum": &test_unions.PodUnionFEnum{test_unions.AnEnum_Second},
}
check(t, &ss, &out)
}
func TestUnionInArray(t *testing.T) {
var ss, out test_unions.SmallStruct
ss.PodUnionArray = &[]test_unions.PodUnion{
&test_unions.PodUnionFInt8{8},
&test_unions.PodUnionFInt16{16},
&test_unions.PodUnionFUint64{64},
&test_unions.PodUnionFBool{true},
&test_unions.PodUnionFEnum{test_unions.AnEnum_Second},
}
check(t, &ss, &out)
}
func TestUnionInArrayNonNullableNull(t *testing.T) {
// Encoding should fail
var ss test_unions.SmallStruct
ss.PodUnionArray = &[]test_unions.PodUnion{
nil,
&test_unions.PodUnionFInt8{8},
&test_unions.PodUnionFInt16{16},
&test_unions.PodUnionFUint64{64},
&test_unions.PodUnionFBool{true},
&test_unions.PodUnionFEnum{test_unions.AnEnum_Second},
}
_, _, err := encode(t, &ss)
if typedErr := err.(*bindings.ValidationError); typedErr.ErrorCode != bindings.UnexpectedNullUnion {
t.Fatalf("Non-nullable null should have failed to encode.")
}
// Decoding should also fail
ss.PodUnionArray = &[]test_unions.PodUnion{
&test_unions.PodUnionFInt8{8},
&test_unions.PodUnionFInt16{16},
&test_unions.PodUnionFUint64{64},
&test_unions.PodUnionFBool{true},
&test_unions.PodUnionFEnum{test_unions.AnEnum_Second},
}
bytes, handles, _ := encode(t, &ss)
// Set first union to null.
bytes[8*10] = 0
var decoded test_unions.SmallStruct
decoder := bindings.NewDecoder(bytes, handles)
err = decoded.Decode(decoder)
if typedErr := err.(*bindings.ValidationError); typedErr.ErrorCode != bindings.UnexpectedNullUnion {
t.Fatalf("Null non-nullable should have failed to decode.")
}
}