public void CreateConverterReturnsValidInstance()
{
var converter = new EnumSnakeCaseConverter().CreateConverter(typeof(Cartoon), null !);
Assert.IsNotNull(converter);
Assert.IsTrue(converter !.CanConvert(typeof(Cartoon)));
Assert.IsFalse(converter !.CanConvert(typeof(int)));
}
public void CanConvertReturnsFalseForEverythingElse()
{
var c = new EnumSnakeCaseConverter();
Assert.IsFalse(c.CanConvert(typeof(int)));
Assert.IsFalse(c.CanConvert(typeof(object)));
Assert.IsFalse(c.CanConvert(typeof(string)));
}
public void ReadReturnsEnum()
{
var fc = new EnumSnakeCaseConverter();
var c = fc.CreateConverter(typeof(Cartoon), null !) as EnumSnakeCaseConverterInner <Cartoon>;
var rawBytes = new ReadOnlySpan <byte>(Encoding.UTF8.GetBytes("\"cat_dog\""));
var reader = new Utf8JsonReader(rawBytes);
reader.Read(); // Read always starts at none. See: https://stackoverflow.com/questions/59028159/exception-when-testing-custom-jsonconverter
var e = c !.Read(ref reader, typeof(Cartoon), null !);
Assert.AreEqual(Cartoon.CatDog, e);
}
public void CanConvertReturnsFalseForFlags()
{
var c = new EnumSnakeCaseConverter();
Assert.IsFalse(c.CanConvert(typeof(FlagEnum)));
}
public void CanConvertReturnsTrueForEnums()
{
var c = new EnumSnakeCaseConverter();
Assert.IsTrue(c.CanConvert(typeof(Cartoon)));
}
