David's application has loads of unit tests. Many of the unit tests even go so far as to exhaustively test every combination of parameters. So seeing something like this is pretty common:
[Test]
[TestCase(false, false, false, false, false)]
[TestCase(false, false, false, false, true)]
[TestCase(false, false, false, true, false)]
[TestCase(false, false, false, true, true)]
[TestCase(false, false, true, false, false)]
[TestCase(false, false, true, false, true)]
[TestCase(false, false, true, true, false)]
[TestCase(false, false, true, true, true)]
[TestCase(false, true, false, false, false)]
[TestCase(false, true, false, false, true)]
[TestCase(false, true, false, true, false)]
[TestCase(false, true, false, true, true)]
[TestCase(false, true, true, false, false)]
[TestCase(false, true, true, false, true)]
[TestCase(false, true, true, true, false)]
[TestCase(false, true, true, true, true)]
[TestCase(true, false, false, false, false)]
[TestCase(true, false, false, false, true)]
[TestCase(true, false, false, true, false)]
[TestCase(true, false, false, true, true)]
[TestCase(true, false, true, false, false)]
[TestCase(true, false, true, false, true)]
[TestCase(true, false, true, true, false)]
[TestCase(true, false, true, true, true)]
[TestCase(true, true, false, false, false)]
[TestCase(true, true, false, false, true)]
[TestCase(true, true, false, true, false)]
[TestCase(true, true, false, true, true)]
[TestCase(true, true, true, false, false)]
[TestCase(true, true, true, false, true)]
[TestCase(true, true, true, true, false)]
[TestCase(true, true, true, true, true)]
public void UpdateClientSettingsTest(bool canCreateBeneficiary,
bool canCreatePayment, bool canCreateDeal,
bool canEditPlan, bool isPayrollEnabled)
{
}