public void Rejects_invalid_character_in_digits()
{
const string digits = "1234a5";
const int span = 2;
Assert.Throws <ArgumentException>(() => LargestSeriesProduct.GetLargestProduct(digits, span));
}
public void Rejects_span_longer_than_string_length()
{
const string digits = "123";
const int span = 4;
Assert.Throws <ArgumentException>(() => LargestSeriesProduct.GetLargestProduct(digits, span));
}
public void Rejects_empty_string_and_nonzero_span()
{
const string digits = "";
const int span = 1;
Assert.Throws <ArgumentException>(() => LargestSeriesProduct.GetLargestProduct(digits, span));
}
public void Rejects_negative_span()
{
const string digits = "12345";
const int span = -1;
Assert.Throws <ArgumentException>(() => LargestSeriesProduct.GetLargestProduct(digits, span));
}
public void Reports_1_for_nonempty_string_and_empty_product_0_span()
{
const string digits = "123";
const int span = 0;
const int expected = 1;
Assert.Equal(expected, LargestSeriesProduct.GetLargestProduct(digits, span));
}
public void Reports_zero_if_all_spans_include_zero()
{
const string digits = "99099";
const int span = 3;
const int expected = 0;
Assert.Equal(expected, LargestSeriesProduct.GetLargestProduct(digits, span));
}
public void Can_find_the_largest_product_of_2()
{
const string digits = "576802143";
const int span = 2;
const int expected = 48;
Assert.Equal(expected, LargestSeriesProduct.GetLargestProduct(digits, span));
}
public void Can_get_the_largest_product_of_a_big_number_II()
{
const string digits = "52677741234314237566414902593461595376319419139427";
const int span = 6;
const int expected = 28350;
Assert.Equal(expected, LargestSeriesProduct.GetLargestProduct(digits, span));
}
public void Reports_1_for_empty_string_and_empty_product_0_span()
{
const string digits = "";
const int span = 0;
const int expected = 1;
Assert.That(LargestSeriesProduct.GetLargestProduct(digits, span), Is.EqualTo(expected));
}
public void Reports_zero_if_the_only_digits_are_zero()
{
const string digits = "0000";
const int span = 2;
const int expected = 0;
Assert.Equal(expected, LargestSeriesProduct.GetLargestProduct(digits, span));
}
public void Finds_the_largest_product_if_span_equals_length()
{
const string digits = "29";
const int span = 2;
const int expected = 18;
Assert.Equal(expected, LargestSeriesProduct.GetLargestProduct(digits, span));
}
public void Can_find_the_largest_product_of_5_with_numbers_in_order()
{
const string digits = "0123456789";
const int span = 5;
const int expected = 15120;
Assert.That(LargestSeriesProduct.GetLargestProduct(digits, span), Is.EqualTo(expected));
}
public void Can_get_the_largest_product_of_a_big_number_III()
{
const string digits = "7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522744304355766896648950445244523161731856403098711121722383113622298934233803081353362766142828064444866452387493035890729629049156044077239071381051585930796086670172427121883998797908792274921901699720888093776657273330010533678812202354218097512545405947522435258490771167055601360483958644670632441572215539753697817977846174064955149290862569321978468622482839722413756570560574902614079729686524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054421750694165896040807198403850962455444362981230987879927244284909188845801561660979191338754992005240636899125607176060588611646710940507754100225698315520005593572972571636269561882670428252483600823257530420752963450";
const int span = 13;
const long expected = 23514624000;
Assert.Equal(expected, LargestSeriesProduct.GetLargestProduct(digits, span));
}
public void Can_get_the_largest_product_of_a_big_number()
{
const string digits = "73167176531330624919225119674426574742355349194934";
const int span = 6;
const int expected = 23520;
Assert.Equal(expected, LargestSeriesProduct.GetLargestProduct(digits, span));
}
public void Can_find_the_largest_product_of_2_with_numbers_in_order()
{
const string digits = "0123456789";
const int span = 2;
const int expected = 72;
Assert.Equal(expected, LargestSeriesProduct.GetLargestProduct(digits, span));
}
public void Can_find_the_largest_product_of_3()
{
const string digits = "1027839564";
const int span = 3;
const int expected = 270;
Assert.Equal(expected, LargestSeriesProduct.GetLargestProduct(digits, span));
}
public void Reports_1_for_nonempty_string_and_empty_product_0_span_()
{
Assert.Equal(1, LargestSeriesProduct.GetLargestProduct("123", 0));
}
public void Rejects_span_longer_than_string_length()
{
Assert.Throws <ArgumentException>(() => LargestSeriesProduct.GetLargestProduct("123", 4));
}
public void Reports_zero_if_all_spans_include_zero()
{
Assert.Equal(0, LargestSeriesProduct.GetLargestProduct("99099", 3));
}
public void Reports_zero_if_the_only_digits_are_zero()
{
Assert.Equal(0, LargestSeriesProduct.GetLargestProduct("0000", 2));
}
public void Can_get_the_largest_product_of_a_big_number()
{
Assert.Equal(23520, LargestSeriesProduct.GetLargestProduct("73167176531330624919225119674426574742355349194934", 6));
}
public void Rejects_invalid_character_in_digits()
{
Assert.Throws <ArgumentException>(() => LargestSeriesProduct.GetLargestProduct("1234a5", 2));
}
public void Can_find_the_largest_product_of_2()
{
Assert.Equal(48, LargestSeriesProduct.GetLargestProduct("576802143", 2));
}
public void Finds_the_largest_product_if_span_equals_length()
{
Assert.Equal(18, LargestSeriesProduct.GetLargestProduct("29", 2));
}
public void Can_find_the_largest_product_of_3()
{
Assert.Equal(270, LargestSeriesProduct.GetLargestProduct("1027839564", 3));
}
public void Rejects_empty_string_and_nonzero_span()
{
Assert.Throws <ArgumentException>(() => LargestSeriesProduct.GetLargestProduct("", 1));
}
public void Can_find_the_largest_product_of_5_with_numbers_in_order()
{
Assert.Equal(15120, LargestSeriesProduct.GetLargestProduct("0123456789", 5));
}
public void Rejects_negative_span()
{
Assert.Throws <ArgumentException>(() => LargestSeriesProduct.GetLargestProduct("12345", -1));
}
static void Main(string[] args)
{
var result = LargestSeriesProduct.GetLargestProduct("123456", 6);
Console.WriteLine(result);
}
