public void NotNull_WhenValueIsNotNull_ReturnsNullGuard()
{
INullGuard sut = CreateSut();
INullGuard result = sut.NotNull(_fixture.Create <object>(), _fixture.Create <string>());
Assert.That(sut, Is.EqualTo(result));
}
public void NotNull_WhenValueIsNull_ThrowsArgumentNullException()
{
INullGuard sut = CreateSut();
string argumentName = _fixture.Create <string>();
ArgumentNullException result = Assert.Throws <ArgumentNullException>(() => sut.NotNull(null, argumentName));
Assert.That(result.ParamName, Is.EqualTo(argumentName));
}
public void NotNull_WhenArgumentNameIsWhiteSpace_ThrowsArgumentNullException()
{
INullGuard sut = CreateSut();
ArgumentNullException result = Assert.Throws <ArgumentNullException>(() => sut.NotNull(_fixture.Create <object>(), " "));
Assert.That(result.ParamName, Is.EqualTo("argumentName"));
}