gistfile1.test.cs

public class Tests
{
    [Fact]
    public void IsEvenNumber_WhenGivenAnEvenNumber_ItReturnsTrue() 
    {
        var gna = new Gnabber();
        Assert.True(gna.IsEvenNumber(42));
    }

    [Fact]
    public void IsEvenNumber_WhenGivenAnUnevenNumber_ItReturnsFalse() 
    {
        var gna = new Gnabber();
        Assert.False(gna.IsEvenNumber(1337));
    }
}