public void ShouldSayIfCanSell(int[] input, string expectedResult)
{
var clerk = new VasyaClerk();
var result = clerk.CanSellToAll(input);
result.Should().NotBeNullOrEmpty();
result.Should().Be(expectedResult);
}
public void ShouldHandleEmptyLine()
{
var clerk = new VasyaClerk();
var result = clerk.CanSellToAll(new int[0]);
result.Should().NotBeNullOrEmpty();
result.Should().Be(VasyaClerk.No);
}