public static void NullableValueTypedMemberWithNullsToObjectConverter()
{
const string expected = @"{""MyValueTypedProperty"":null,""MyRefTypedProperty"":null,""MyValueTypedField"":null,""MyRefTypedField"":null}";
var converter = new ValueTypeToObjectConverter();
var options = new JsonSerializerOptions()
{
IncludeFields = true,
};
options.Converters.Add(converter);
string json;
{
var obj = new TestClassWithNullableValueTypedMember();
json = JsonSerializer.Serialize(obj, options);
Assert.Equal(4, converter.WriteCallCount);
JsonTestHelper.AssertJsonEqual(expected, json);
}
{
var obj = JsonSerializer.Deserialize <TestClassWithNullableValueTypedMember>(json, options);
Assert.Equal(4, converter.ReadCallCount);
Assert.Null(obj.MyValueTypedProperty);
Assert.Null(obj.MyValueTypedField);
Assert.Null(obj.MyRefTypedProperty);
Assert.Null(obj.MyRefTypedField);
}
}
public static void AssignmentToValueTypedMemberObject()
{
var converter = new ValueTypeToObjectConverter();
var options = new JsonSerializerOptions {
IncludeFields = true
};
options.Converters.Add(converter);
Exception ex;
// Invalid cast OtherVTMember
ex = Assert.Throws <InvalidCastException>(() => JsonSerializer.Deserialize <TestClassWithValueTypedMember>(@"{""MyValueTypedProperty"":""OtherVTProperty""}", options));
ex = Assert.Throws <InvalidCastException>(() => JsonSerializer.Deserialize <TestClassWithValueTypedMember>(@"{""MyValueTypedField"":""OtherVTField""}", options));
// Invalid cast OtherRTMember
ex = Assert.Throws <InvalidCastException>(() => JsonSerializer.Deserialize <TestClassWithValueTypedMember>(@"{""MyValueTypedProperty"":""OtherRTProperty""}", options));
ex = Assert.Throws <InvalidCastException>(() => JsonSerializer.Deserialize <TestClassWithValueTypedMember>(@"{""MyValueTypedField"":""OtherRTField""}", options));
// Invalid null
ex = Assert.Throws <InvalidOperationException>(() => JsonSerializer.Deserialize <TestClassWithValueTypedMember>(@"{""MyValueTypedProperty"":null}", options));
ex = Assert.Throws <InvalidOperationException>(() => JsonSerializer.Deserialize <TestClassWithValueTypedMember>(@"{""MyValueTypedField"":null}", options));
}