public void SendEmailTestArray()
{
//Arrange
var vendorRepository = new VendorRepository();
var vendors = vendorRepository.RetrieveArray();
var expected = new List <string>()
{
"Message sent: Important email for: ABC Corp",
"Message sent: Important email for: XYZ Inc",
};
//Act
var actual = Vendor.SendEmail(vendors, "Test Message");
//Assert
Assert.Equal(expected, actual);
}