public string GetLastAndFirstNamesAsCsv(List <Customer> customers)
{
buildCsv.SetHeader(new[] { "Last Name", "First Name" });
customers.ForEach(customer => buildCsv.AddRow(new [] { customer.LastName, customer.FirstName }));
return(buildCsv.Build());
}
public void CsvIsBuilt()
{
A.CallTo(() => buildCsv.Build()).MustHaveHappened(Repeated.Exactly.Once);
}