//=============================================================================
// You are expected to write an abstraction layer for your class called
// IPhoneNumber.  Your unit 'uPhoneNumber.pas' should only expose the
// abstraction layer along with a function called 'NewPhoneNumber' that returns
// an instance of IPhoneNumber.
//=============================================================================
unit uPhoneNumberTests;

interface
uses
  DUnitX.TestFramework;

type

  [TestFixture]
  PhoneNumberTests = class(TObject)
  public
    [Test]
    procedure Cleans_parens_spaces_and_dashes;

    [Test]
    [Ignore]
    procedure Cleans_numbers_with_dots;

    [Test]
    [Ignore]
    procedure Valid_when_11_digits_and_starting_with_1;

    [Test]
    [Ignore]
    procedure Invalid_when_11_digits;

    [Test]
    [Ignore]
    procedure Invalid_when_12_digits;

    [Test]
    [Ignore]
    procedure Invalid_when_9_digits;

    [Test]
    [Ignore]
    procedure Invalid_with_letters;

    [Test]
    [Ignore]
    procedure Invalid_with_punctuations;

    [Test]
    [Ignore]
    procedure Invalid_with_right_number_of_digits_but_letters_mixed_in;

    [Test]
    [Ignore]
    procedure Has_an_area_code;

    [Test]
    [Ignore('This is a bonus test')]
    procedure Formats_a_number;
  end;

implementation
uses uPhoneNumber;

procedure PhoneNumberTests.Cleans_parens_spaces_and_dashes;
var phone: IPhoneNumber;
begin
  phone := NewPhoneNumber('(123) 456-7890');
  assert.AreEqual('1234567890',phone.Number);
end;

procedure PhoneNumberTests.Cleans_numbers_with_dots;
var phone: IPhoneNumber;
begin
  phone := NewPhoneNumber('123.456.7890');
  assert.AreEqual('1234567890',phone.Number);
end;

procedure PhoneNumberTests.Valid_when_11_digits_and_starting_with_1;
var phone: IPhoneNumber;
begin
  phone := NewPhoneNumber('11234567890');
  assert.AreEqual('1234567890', phone.Number);
end;

procedure PhoneNumberTests.Invalid_when_11_digits;
var phone: IPhoneNumber;
begin
  phone := NewPhoneNumber('21234567890');
  assert.AreEqual('', phone.Number);
end;

procedure PhoneNumberTests.Invalid_when_12_digits;
var phone: IPhoneNumber;
begin
  phone := NewPhoneNumber('321234567890');
  assert.AreEqual('', phone.Number);
end;

procedure PhoneNumberTests.Invalid_when_9_digits;
var phone: IPhoneNumber;
begin
  phone := NewPhoneNumber('123456789');
  assert.AreEqual('', phone.Number);
end;

procedure PhoneNumberTests.Invalid_with_letters;
var phone: IPhoneNumber;
begin
  phone := NewPhoneNumber('123-abc-7890');
  assert.AreEqual('', phone.Number);
end;

procedure PhoneNumberTests.Invalid_with_punctuations;
var phone: IPhoneNumber;
begin
  phone := NewPhoneNumber('123-@:!-7890');
  assert.AreEqual('', phone.Number);
end;

procedure PhoneNumberTests.Invalid_with_right_number_of_digits_but_letters_mixed_in;
var phone: IPhoneNumber;
begin
  phone := NewPhoneNumber('1a2b3c4d5e6f7g8h9i0j');
  assert.AreEqual('', phone.Number);
end;

procedure PhoneNumberTests.Has_an_area_code;
var phone: IPhoneNumber;
begin
  phone := NewPhoneNumber('1234567890');
  assert.AreEqual('123', phone.AreaCode);
end;

procedure PhoneNumberTests.Formats_a_number;
var phone: IPhoneNumber;
begin
  phone := NewPhoneNumber('1234567890');
  assert.AreEqual('(123) 456-7890', phone.ToString);
end;

initialization
  TDUnitX.RegisterTestFixture(PhoneNumberTests);
end.