NullReferenceException : Object reference not set to an instance of an object. in nunit parallel mode

[EvgenyMarchuk]

There is a simple example to reproduce the problem. Create several(3 or more) tests for Nunit project You should generate a new card number for each test

`[Parallelizable(ParallelScope.All)] internal class SimpleTests { [Test] public void SimpleTest1() { var cardNumber = CreditCardFactory.RandomCardNumber(CardIssuer.MasterCard); Assert.IsNotNull(cardNumber); }

    [Test]
    public void SimpleTest2()
    {
        var cardNumber = CreditCardFactory.RandomCardNumber(CardIssuer.MasterCard);
        Assert.IsNotNull(cardNumber);
    }

    [Test]
    public void SimpleTest3()
    {
        var cardNumber = CreditCardFactory.RandomCardNumber(CardIssuer.MasterCard);
        Assert.IsNotNull(cardNumber);
    }

    [Test]
    public void SimpleTest4()
    {
        var cardNumber = CreditCardFactory.RandomCardNumber(CardIssuer.MasterCard);
        Assert.IsNotNull(cardNumber);
    }
}`

[gustavofrizzo]

Published version 2.0.1 with the fix. Thanks for reporting it.