public void Defensive()
{
var method = new CodeMethod {
Name = "class",
};
Assert.False(method.IsOfKind((CodeMethodKind[])null));
Assert.False(method.IsOfKind(Array.Empty <CodeMethodKind>()));
Assert.Throws <ArgumentNullException>(() => method.AddDiscriminatorMapping(null, new CodeType {
Name = "class"
}));
Assert.Throws <ArgumentNullException>(() => method.AddDiscriminatorMapping("oin", null));
Assert.Throws <ArgumentNullException>(() => method.GetDiscriminatorMappingValue(null));
Assert.Null(method.GetDiscriminatorMappingValue("oin"));
Assert.Throws <ArgumentNullException>(() => method.AddErrorMapping(null, new CodeType {
Name = "class"
}));
Assert.Throws <ArgumentNullException>(() => method.AddErrorMapping("oin", null));
Assert.Throws <ArgumentNullException>(() => method.GetErrorMappingValue(null));
Assert.Null(method.GetErrorMappingValue("oin"));
}