Library to apply assert on function. Personnal implementation of code contracts, compatible with actual VS version : https://docs.microsoft.com/en-us/dotnet/framework/debug-trace-profile/code-contracts

If you use AssertHelper.CastleInterceptors thinks to add reference to castleCore https://github.com/castleproject/Core If you use AssertHelper.ReflectionProxies thinks to add reference to System.Reflection.DispatchProxy https://www.nuget.org/packages/system.reflection.dispatchproxy/

The sample case :

private void AssertFunc(object parameter)
{
    Assert.NotNull(parameter);

    Console.WriteLine("function logic");
}

[...]

AssertFunc("not null value");
AssertFunc(null);

1 : return : function logic
2 : throw NullAssertException => "parameter : must be null but was not"


We can add custom parameter name :

private void AssertFunc(object specificName)
{
    Assert.NotNull(specificName, nameof(specificName));

    Console.WriteLine("function logic");
}

[...]

AssertFunc("not null value");
AssertFunc(null);

1 : return : function logic
2 : throw NullAssertException => "parameter specificName : must be null but was not"


We can add custom message :

private void AssertFunc(object specificName)
{
    Assert.NotNull(specificName, nameof(specificName), "specific message");

    Console.WriteLine("function logic");
}

[...]

AssertFunc("not null value");
AssertFunc(null);

1 : return : function logic
2 : throw NullAssertException => "parameter specificName : specific message"


Or use custom exception :

private void AssertFunc(object specificName)
{
    Assert.NotNull(specificName, new SpecificException("specific arguments"));
    Console.WriteLine("function logic");
}

[...]

AssertFunc("not null value");
AssertFunc(null);

1 : return : function logic
2 : throw SpecificException

• Thibaut PILLON -

See also the list of contributors who participated in this project.