{
  Solutions to the Advent Of Code.
  Copyright (C) 2023  Stefan Müller

  This program is free software: you can redistribute it and/or modify it under
  the terms of the GNU General Public License as published by the Free Software
  Foundation, either version 3 of the License, or (at your option) any later
  version.

  This program is distributed in the hope that it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

  You should have received a copy of the GNU General Public License along with
  this program.  If not, see <http://www.gnu.org/licenses/>.
}

unit UGearRatiosTestCases;

{$mode objfpc}{$H+}

interface

uses
  Classes, SysUtils, fpcunit, testregistry, USolver, UGearRatios;

type

  { TGearRatiosBaseTestCase }

  TGearRatiosBaseTestCase = class(TTestCase)
  protected
    FSolver: TGearRatios;
    procedure Setup; override;
    procedure TearDown; override;
  end;

  { TGearRatiosFullDataTestCase }

  TGearRatiosFullDataTestCase = class(TGearRatiosBaseTestCase)
  protected
    FEngine: TSolverEngine;
    procedure Setup; override;
    procedure TearDown; override;
  published
    procedure TestPart1;
    procedure TestPart2;
  end;

  { TGearRatiosTestCase }

  TGearRatiosTestCase = class(TGearRatiosBaseTestCase)
  published
    procedure TestEndOfLineNumber;
  end;

  { TGearRatiosExampleTestCase }

  TGearRatiosExampleTestCase = class(TGearRatiosBaseTestCase)
  protected
    procedure Setup; override;
  published
    procedure TestPart1;
    procedure TestPart2;
  end;

implementation

{ TGearRatiosBaseTestCase }

procedure TGearRatiosBaseTestCase.Setup;
begin
  FSolver := TGearRatios.Create;
end;

procedure TGearRatiosBaseTestCase.TearDown;
begin
  FSolver.Free;
end;

{ TGearRatiosFullDataTestCase }

procedure TGearRatiosFullDataTestCase.Setup;
begin
  inherited Setup;
  FEngine := TSolverEngine.Create(ConcatPaths(['..', '..', 'bin', 'data']));
  FEngine.ProcessData(FSolver);
end;

procedure TGearRatiosFullDataTestCase.TearDown;
begin
  FEngine.Free;
  inherited TearDown;
end;

procedure TGearRatiosFullDataTestCase.TestPart1;
begin
  AssertEquals(530495, FSolver.GetResultPart1);
end;

procedure TGearRatiosFullDataTestCase.TestPart2;
begin
  AssertEquals(80253814, FSolver.GetResultPart2);
end;


{ TGearRatiosTestCase }

procedure TGearRatiosTestCase.TestEndOfLineNumber;
begin
  FSolver.Init;
  FSolver.ProcessDataLine('...$541');
  FSolver.Finish;
  AssertEquals('Result of part 1 calculation incorrect.', 541, FSolver.GetResultPart1);
end;

{ TGearRatiosExampleTestCase }

procedure TGearRatiosExampleTestCase.Setup;
begin
  inherited Setup;
  FSolver.Init;
  FSolver.ProcessDataLine('467..114..');
  FSolver.ProcessDataLine('...*......');
  FSolver.ProcessDataLine('..35..633.');
  FSolver.ProcessDataLine('......#...');
  FSolver.ProcessDataLine('617*......');
  FSolver.ProcessDataLine('.....+.58.');
  FSolver.ProcessDataLine('..592.....');
  FSolver.ProcessDataLine('......755.');
  FSolver.ProcessDataLine('...$.*....');
  FSolver.ProcessDataLine('.664.598..');
  FSolver.Finish;
end;

procedure TGearRatiosExampleTestCase.TestPart1;
begin
  AssertEquals(4361, FSolver.GetResultPart1);
end;

procedure TGearRatiosExampleTestCase.TestPart2;
begin
  AssertEquals(467835, FSolver.GetResultPart2);
end;

initialization

  RegisterTest(TGearRatiosFullDataTestCase);
  RegisterTest(TGearRatiosTestCase);
  RegisterTest(TGearRatiosExampleTestCase);
end.