public class PhoneNumberTests { [Fact] public void Cleans_the_number() { Assert.Equal("2234567890", PhoneNumber.Clean("(223) 456-7890")); } [Fact(Skip = "Remove this Skip property to run this test")] public void Cleans_numbers_with_dots() { Assert.Equal("2234567890", PhoneNumber.Clean("223.456.7890")); } [Fact(Skip = "Remove this Skip property to run this test")] public void Cleans_numbers_with_multiple_spaces() { Assert.Equal("2234567890", PhoneNumber.Clean("223 456 7890 ")); } [Fact(Skip = "Remove this Skip property to run this test")] public void Invalid_when_9_digits() { Assert.Throws(() => PhoneNumber.Clean("123456789")); } [Fact(Skip = "Remove this Skip property to run this test")] public void Invalid_when_11_digits_does_not_start_with_a_1() { Assert.Throws(() => PhoneNumber.Clean("22234567890")); } [Fact(Skip = "Remove this Skip property to run this test")] public void Valid_when_11_digits_and_starting_with_1() { Assert.Equal("2234567890", PhoneNumber.Clean("12234567890")); } [Fact(Skip = "Remove this Skip property to run this test")] public void Valid_when_11_digits_and_starting_with_1_even_with_punctuation() { Assert.Equal("2234567890", PhoneNumber.Clean("+1 (223) 456-7890")); } [Fact(Skip = "Remove this Skip property to run this test")] public void Invalid_when_more_than_11_digits() { Assert.Throws(() => PhoneNumber.Clean("321234567890")); } [Fact(Skip = "Remove this Skip property to run this test")] public void Invalid_with_letters() { Assert.Throws(() => PhoneNumber.Clean("523-abc-7890")); } [Fact(Skip = "Remove this Skip property to run this test")] public void Invalid_with_punctuations() { Assert.Throws(() => PhoneNumber.Clean("523-@:!-7890")); } [Fact(Skip = "Remove this Skip property to run this test")] public void Invalid_if_area_code_starts_with_0() { Assert.Throws(() => PhoneNumber.Clean("(023) 456-7890")); } [Fact(Skip = "Remove this Skip property to run this test")] public void Invalid_if_area_code_starts_with_1() { Assert.Throws(() => PhoneNumber.Clean("(123) 456-7890")); } [Fact(Skip = "Remove this Skip property to run this test")] public void Invalid_if_exchange_code_starts_with_0() { Assert.Throws(() => PhoneNumber.Clean("(223) 056-7890")); } [Fact(Skip = "Remove this Skip property to run this test")] public void Invalid_if_exchange_code_starts_with_1() { Assert.Throws(() => PhoneNumber.Clean("(223) 156-7890")); } [Fact(Skip = "Remove this Skip property to run this test")] public void Invalid_if_area_code_starts_with_0_on_valid_11_digit_number() { Assert.Throws(() => PhoneNumber.Clean("1 (023) 456-7890")); } [Fact(Skip = "Remove this Skip property to run this test")] public void Invalid_if_area_code_starts_with_1_on_valid_11_digit_number() { Assert.Throws(() => PhoneNumber.Clean("1 (123) 456-7890")); } [Fact(Skip = "Remove this Skip property to run this test")] public void Invalid_if_exchange_code_starts_with_0_on_valid_11_digit_number() { Assert.Throws(() => PhoneNumber.Clean("1 (223) 056-7890")); } [Fact(Skip = "Remove this Skip property to run this test")] public void Invalid_if_exchange_code_starts_with_1_on_valid_11_digit_number() { Assert.Throws(() => PhoneNumber.Clean("1 (223) 156-7890")); } }