Added custom constructors for TCosmicExpansion and TStepCounter to simplify test case setup

solvers/UCosmicExpansion.pas

@@ -35,17 +35,17 @@ type
 
   TCosmicExpansion = class(TSolver)
   private
+    FExpansionFactor: Integer;
     FColumnExpansion, FRowExpansion: specialize TList<Integer>;
     FGalaxies: specialize TList<TPoint>;
     procedure InitColumnExpansion(const ASize: Integer);
   public
-    constructor Create;
+    constructor Create(const AExpansionFactor: Integer = 999999);
     destructor Destroy; override;
     procedure ProcessDataLine(const ALine: string); override;
     procedure Finish; override;
     function GetDataFileName: string; override;
     function GetPuzzleName: string; override;
-    function GetExpansionFactor: Integer; virtual;
   end;
 
 implementation
@@ -64,8 +64,9 @@ begin
   end;
 end;
 
-constructor TCosmicExpansion.Create;
+constructor TCosmicExpansion.Create(const AExpansionFactor: Integer);
 begin
+  FExpansionFactor := AExpansionFactor;
   FColumnExpansion := specialize TList<Integer>.Create;
   FRowExpansion := specialize TList<Integer>.Create;
   FGalaxies := specialize TList<TPoint>.Create;
@@ -110,12 +111,12 @@ begin
       for k := Min(FGalaxies[i].X, FGalaxies[j].X) to Max(FGalaxies[i].X, FGalaxies[j].X) - 1 do
       begin
         Inc(FPart1, 1 + FColumnExpansion[k]);
-        Inc(FPart2, 1 + FColumnExpansion[k] * GetExpansionFactor);
+        Inc(FPart2, 1 + FColumnExpansion[k] * FExpansionFactor);
       end;
       for k := Min(FGalaxies[i].Y, FGalaxies[j].Y) + 1 to Max(FGalaxies[i].Y, FGalaxies[j].Y) do
       begin
         Inc(FPart1, 1 + FRowExpansion[k]);
-        Inc(FPart2, 1 + FRowExpansion[k] * GetExpansionFactor);
+        Inc(FPart2, 1 + FRowExpansion[k] * FExpansionFactor);
       end;
     end;
 end;
@@ -130,10 +131,5 @@ begin
    Result := 'Day 11: Cosmic Expansion';
 end;
 
-function TCosmicExpansion.GetExpansionFactor: Integer;
-begin
-  Result := 999999;
-end;
-
 end.
 

solvers/UStepCounter.pas

@@ -38,8 +38,7 @@ type
     function GetPosition(constref APoint: TPoint): Char;
     procedure SetPosition(constref APoint: TPoint; const AValue: Char);
   public
-    property MaxSteps: Integer read FMaxSteps write FMaxSteps;
+    constructor Create(const AMaxSteps: Integer = 64);
-    constructor Create;
     destructor Destroy; override;
     procedure ProcessDataLine(const ALine: string); override;
     procedure Finish; override;
@@ -90,9 +89,9 @@ begin
   FLines[APoint.Y] := s;
 end;
 
-constructor TStepCounter.Create;
+constructor TStepCounter.Create(const AMaxSteps: Integer);
 begin
-  FMaxSteps := 64;
+  FMaxSteps := AMaxSteps;
   FLines := TStringList.Create;
 end;
 

tests/UCosmicExpansionTestCases.pas

@@ -45,13 +45,6 @@ type
     procedure TestPart1;
   end;
 
-  { TFactor10CosmicExpansion }
-
-  TFactor10CosmicExpansion = class(TCosmicExpansion)
-  public
-    function GetExpansionFactor: Integer; override;
-  end;
-
   { TCosmicExpansionExampleFactor10TestCase }
 
   TCosmicExpansionExampleFactor10TestCase = class(TExampleEngineBaseTest)
@@ -61,12 +54,6 @@ type
     procedure TestPart2;
   end;
 
-  { TFactor100CosmicExpansion }
-
-  TFactor100CosmicExpansion = class(TCosmicExpansion)
-    function GetExpansionFactor: Integer; override;
-  end;
-
   { TCosmicExpansionExampleFactor100TestCase }
 
   TCosmicExpansionExampleFactor100TestCase = class(TExampleEngineBaseTest)
@@ -107,18 +94,11 @@ begin
   AssertEquals(374, FSolver.GetResultPart1);
 end;
 
-{ TFactor10CosmicExpansion }
-
-function TFactor10CosmicExpansion.GetExpansionFactor: Integer;
-begin
-  Result := 9;
-end;
-
 { TCosmicExpansionExampleFactor10TestCase }
 
 function TCosmicExpansionExampleFactor10TestCase.CreateSolver: ISolver;
 begin
-  Result := TFactor10CosmicExpansion.Create;
+  Result := TCosmicExpansion.Create(9);
 end;
 
 procedure TCosmicExpansionExampleFactor10TestCase.TestPart2;
@@ -126,18 +106,11 @@ begin
   AssertEquals(1030, FSolver.GetResultPart2);
 end;
 
-{ TFactor100CosmicExpansion }
-
-function TFactor100CosmicExpansion.GetExpansionFactor: Integer;
-begin
-  Result := 99;
-end;
-
 { TCosmicExpansionExampleFactor100TestCase }
 
 function TCosmicExpansionExampleFactor100TestCase.CreateSolver: ISolver;
 begin
-  Result := TFactor100CosmicExpansion.Create;
+  Result := TCosmicExpansion.Create(99);
 end;
 
 procedure TCosmicExpansionExampleFactor100TestCase.TestPart2;

tests/UStepCounterTestCases.pas

@@ -61,12 +61,8 @@ end;
 { TStepCounterMax6ExampleTestCase }
 
 function TStepCounterMax6ExampleTestCase.CreateSolver: ISolver;
-var
-  solver: TStepCounter;
 begin
-  solver := TStepCounter.Create;
+  Result := TStepCounter.Create(6);
-  solver.MaxSteps := 6;
-  Result := solver;
 end;
 
 procedure TStepCounterMax6ExampleTestCase.TestPart1;