public void TestSingle_not_data()
{
var employees = RepositoryFactory.GetEmployees();
Assert.Throws <InvalidOperationException>(() =>
WithoutLinq.CashSingle(employees, a => a.Role == RoleType.Unknown));
Assert.Throws <InvalidOperationException>(() => employees.CashSingle(a => a.Role == RoleType.Unknown));
}
public void TestSingle_more_then_one_data()
{
var employees = RepositoryFactory.GetEmployees();
Assert.Throws <InvalidOperationException>(() =>
WithoutLinq.CashSingle(employees, a => a.Role == RoleType.Engineer));
Assert.Throws <InvalidOperationException>(() => employees.CashSingle(a => a.Role == RoleType.Engineer));
}
public void TestSinge()
{
var employees = RepositoryFactory.GetEmployees();
Assert.Equal(RoleType.Manager, WithoutLinq.CashSingle(employees, a => a.Role == RoleType.Manager).Role);
Assert.Equal(RoleType.Manager, employees.CashSingle(a => a.Role == RoleType.Manager).Role);
}