fpc/fcl/fpcunit/fpcunit.pp

{$mode objfpc}
{$h+}
{
    $Id$
    This file is part of the Free Component Library (FCL)
    Copyright (c) 2004 by Dean Zobec, Michael Van Canneyt
    
    Port to Free Pascal of the JUnit framework. 

    See the file COPYING.FPC, included in this distribution,
    for details about the copyright.

    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.

 **********************************************************************}
unit fpcunit;

interface

{$define SHOWLINEINFO}

uses
  {$ifdef SHOWLINEINFO}
  LineInfo, 
  {$endif}
  SysUtils, Classes;

type
  
  EAssertionFailedError = class(Exception)
    constructor Create; overload;
    constructor Create(const msg :string); overload;
  end;
  
  TRunMethod = procedure of object;
  
  TTestResult = class;
  
  {$M+}
  TTest = class(TObject)
  protected
    function GetTestName: string; virtual;
    function GetTestSuiteName: string; virtual;
    procedure SetTestSuiteName(const aName: string); virtual; abstract;
  public
    function CountTestCases: integer; virtual; 
    procedure Run(AResult: TTestResult); virtual;
  published
    property TestName: string read GetTestName;
    property TestSuiteName: string read GetTestSuiteName write SetTestSuiteName;
  end; 
  {$M-}   

  TAssert = class(TTest)
  public
    class procedure Fail(const AMessage: string);
    class procedure AssertTrue(const AMessage: string; ACondition: boolean); overload;
    class procedure AssertTrue(ACondition: boolean); overload;
    class procedure AssertFalse(const AMessage: string; ACondition: boolean); overload;
    class procedure AssertFalse(ACondition: boolean); overload;
    class procedure AssertEquals(const AMessage: string; Expected, Actual: string); overload;
    class procedure AssertEquals(Expected, Actual: string); overload;
    class procedure AssertEquals(const AMessage: string; Expected, Actual: integer); overload;
    class procedure AssertEquals(Expected, Actual: integer); overload;
    class procedure AssertEquals(const AMessage: string; Expected, Actual: int64); overload;
    class procedure AssertEquals(Expected, Actual: int64); overload;
    class procedure AssertEquals(const AMessage: string; Expected, Actual: currency); overload;
    class procedure AssertEquals(Expected, Actual: currency); overload;
    class procedure AssertEquals(const AMessage: string; Expected, Actual, Delta: double); overload;
    class procedure AssertEquals(Expected, Actual, Delta: double); overload;
    class procedure AssertEquals(const AMessage: string; Expected, Actual: boolean); overload;
    class procedure AssertEquals(Expected, Actual: boolean); overload;
    class procedure AssertEquals(const AMessage: string; Expected, Actual: char); overload;
    class procedure AssertEquals(Expected, Actual: char); overload;
    class procedure AssertEquals(const AMessage: string; Expected, Actual: TClass); overload;
    class procedure AssertEquals(Expected, Actual: TClass); overload;
    class procedure AssertSame(const AMessage: string; Expected, Actual: TObject); overload;
    class procedure AssertSame(Expected, Actual: TObject); overload;
    class procedure AssertNotSame(const AMessage: string; Expected, Actual: TObject); overload;
    class procedure AssertNotSame(Expected, Actual: TObject); overload;
    class procedure AssertNotNull(const AMessage: string; AObject: TObject); overload;
    class procedure AssertNotNull(AObject: TObject); overload;
    class procedure AssertNull(const AMessage: string; AObject: TObject); overload;
    class procedure AssertNull(AObject: TObject); overload;
    class procedure AssertNotNull(const AMessage, AString: string); overload;
    class procedure AssertNotNull(const AString: string); overload;
    class procedure AssertException(const AMessage: string; AExceptionClass: ExceptClass; AMethod: TRunMethod); overload;
    class procedure AssertException(AExceptionClass: ExceptClass; AMethod: TRunMethod); overload;
  end;
  
  TTestFailure = class(TObject)
  private
    FTestName: string;
    FTestSuiteName: string;
    FLineNumber: longint;
    FMethodName: string;
    FRaisedExceptionClass: TClass;
    FRaisedExceptionMessage: string;
    FSourceUnitName: string;
    function GetAsString: string;
    function GetExceptionMessage: string;
    function GetIsFailure: boolean;
    function GetExceptionClassName: string;
  public
    constructor CreateFailure(ATest: TTest; E: Exception);
    property ExceptionClass: TClass read FRaisedExceptionClass;
  published
    property AsString: string read GetAsString;
    property IsFailure: boolean read GetIsFailure;
    property ExceptionMessage: string read GetExceptionMessage;
    property ExceptionClassName: string read GetExceptionClassName;
    property SourceUnitName: string read FSourceUnitName write FSourceUnitName;
    property LineNumber: longint read FLineNumber write FLineNumber;
    property MethodName: string read FMethodName write FMethodName;
  end;
  
  ITestListener = interface
  ['{0CE9D3AE-882A-D811-9401-ADEB5E4C7FC1}']
    procedure AddFailure(ATest: TTest; AFailure: TTestFailure);
    procedure AddError(ATest: TTest; AError: TTestFailure);
    procedure StartTest(ATest: TTest);
    procedure EndTest(ATest: TTest);
  end;
  
  TTestCase = class(TAssert)
  private
    FName: string;
    FTestSuiteName: string;
  protected
    function CreateResult: TTestResult; virtual;
    procedure SetUp; virtual;
    procedure TearDown; virtual;
    procedure RunTest; virtual;
    function GetTestName: string; override;
    function GetTestSuiteName: string; override;
    procedure SetTestSuiteName(const aName: string); override;
    procedure SetTestName(const Value: string); virtual;
  public
    constructor Create; virtual;
    constructor CreateWith(const AName: string; const ATestSuiteName: string); virtual;
    constructor CreateWithName(const AName: string); virtual;
    function CountTestCases: integer; override;
    function CreateResultAndRun: TTestResult; virtual;
    procedure Run(AResult: TTestResult); override;
    procedure RunBare; virtual;
    function AsString: string;
    property TestSuiteName: string read GetTestSuiteName write SetTestSuiteName;
  published
    property TestName: string read GetTestName write SetTestName;
  end;
  
  TTestClass = Class of TTestCase;
  
  TTestSuite = class(TTest)
  private
    FTests: TList;
    FName: string;
    FTestSuiteName: string;
    function GetTest(Index: integer): TTest;
  protected
    function GetTestName: string; override;
    function GetTestSuiteName: string; override;
    procedure SetTestSuiteName(const aName: string); override;
    procedure SetTestName(const Value: string); virtual;
  public
    constructor Create(AClass: TClass; AName: string); reintroduce; overload; virtual;
    constructor Create(AClass: TClass); reintroduce; overload; virtual;
    constructor Create(AClassArray: Array of TClass); reintroduce; overload; virtual;
    constructor Create(AName: string); reintroduce; overload; virtual;
    constructor Create; reintroduce; overload; virtual;
    destructor Destroy; override;
    function CountTestCases: integer; override;
    procedure Run(AResult: TTestResult); override;
    procedure RunTest(ATest: TTest; AResult: TTestResult); virtual;
    procedure AddTest(ATest: TTest); overload; virtual;
    procedure AddTestSuiteFromClass(ATestClass: TClass); virtual;
    class function Warning(const aMessage: string): TTestCase;
    property Test[Index: integer]: TTest read GetTest; default;    
    property TestSuiteName: string read GetTestSuiteName write SetTestSuiteName;
    property TestName: string read GetTestName write SetTestName;
    property Tests: TList read FTests;
  end;
  
  TTestResult = class(TObject)
  private
  protected
    FRunTests: integer;
    FFailures: TList;
    FErrors: TList;
    FListeners: TList;
    function GetNumErrors: integer;
    function GetNumFailures: integer;
  public
    constructor Create; virtual;
    destructor Destroy; override;
    property Listeners: TList read FListeners;
    procedure ClearErrorLists;
    procedure StartTest(ATest: TTest);
    procedure AddFailure(ATest: TTest; E: EAssertionFailedError);
    procedure AddError(ATest: TTest; E: Exception; AUnitName: string;
      AMethodName: string; ALineNumber: longint);
    procedure EndTest(ATest: TTest);
    procedure AddListener(AListener: ITestListener);
    procedure RemoveListener(AListener: ITestListener);
    procedure Run(ATestCase: TTestCase);
    procedure RunProtected(ATestCase: TTestCase);
    function WasSuccessful: boolean;
  published
    property Failures: TList read FFailures;
    property Errors: TList read FErrors;
    property RunTests: integer read FRunTests;
    property NumberOfErrors: integer read GetNumErrors;
    property NumberOfFailures: integer read GetNumFailures;
  end;

  function ComparisonMsg(const aExpected: string; const aActual: string): string;  
  
Resourcestring

  SCompare = ' expected: <%s> but was: <%s>';
  SExpectedNotSame = 'expected not same';
  SExceptionCompare = 'Exception %s expected but %s was raised';
  SMethodNotFound = 'Method <%s> not found';
  SNoValidInheritance = ' does not inherit from TTestCase';
  SNoValidTests = 'No valid tests found in ';
  
  
implementation

uses
  testutils;

type

  TTestWarning = class(TTestCase)
  private
    FMessage: String;
  protected
    procedure RunTest; override;
  end;
  
procedure TTestWarning.RunTest;
begin
  Fail(FMessage);
end;  

function ComparisonMsg(const aExpected: string; const aActual: string): string;
begin
  Result := format(SCompare, [aExpected, aActual]);
end;
  
constructor EAssertionFailedError.Create;
begin
  inherited Create('');
end;

constructor EAssertionFailedError.Create(const msg: string);
begin
  inherited Create(msg);
end;

constructor TTestFailure.CreateFailure(ATest: TTest; E: Exception);
begin
  inherited Create;
  FTestName := ATest.GetTestName;
  FTestSuiteName := ATest.GetTestSuiteName;
  FRaisedExceptionClass := E.ClassType;
  FRaisedExceptionMessage := E.Message;
end;

function TTestFailure.GetAsString: string;
var
  s: string;
begin
  if FTestSuiteName <> '' then
    s := FTestSuiteName + '.'
  else
    s := '';
  Result := s + FTestName + ': ' + FRaisedExceptionMessage;
end;

function TTestFailure.GetExceptionClassName: string;
begin
  Result := FRaisedExceptionClass.ClassName;
end;
    
function TTestFailure.GetExceptionMessage: string;
begin
  Result := FRaisedExceptionMessage;
end;

function TTestFailure.GetIsFailure: boolean;
begin
  Result := FRaisedExceptionClass.InheritsFrom(EAssertionFailedError);
end;

{ TTest}

function TTest.GetTestName: string;
begin
  Result := 'TTest';
end;

function TTest.GetTestSuiteName: string;
begin
  Result := 'TTest';
end;

function TTest.CountTestCases: integer;
begin
  Result := 0;
end; 

procedure TTest.Run(AResult: TTestResult);
begin
end;

{ TAssert }
  
class procedure TAssert.Fail(const AMessage: String);
begin
  raise EAssertionFailedError.Create(AMessage);
end;

class procedure TAssert.AssertTrue(const AMessage: String; ACondition: Boolean);
begin
  if (not ACondition) then
    Fail(AMessage);
end;

class procedure TAssert.AssertTrue(ACondition: Boolean);
begin
  AssertTrue('', ACondition);
end;

class procedure TAssert.AssertFalse(const AMessage: String; ACondition: Boolean);
begin
  AssertTrue(AMessage, not ACondition);
end;

class procedure TAssert.AssertFalse(ACondition: Boolean);
begin
  AssertFalse('', ACondition);
end;

class procedure TAssert.AssertEquals(const AMessage: string; Expected, Actual: string);
begin
  AssertTrue(AMessage + ComparisonMsg(Expected, Actual), AnsiCompareStr(Expected, Actual) = 0);
end;

class procedure TAssert.AssertEquals(Expected, Actual: string);
begin
  AssertEquals('', Expected, Actual);
end;

class procedure TAssert.AssertNotNull(const AString: string);
begin
  AssertNotNull('', AString);
end;

class procedure TAssert.AssertEquals(const AMessage: string; Expected, Actual: integer); 
begin
  AssertTrue(AMessage + ComparisonMsg(IntToStr(Expected), IntToStr(Actual)), Expected = Actual);
end;

class procedure TAssert.AssertEquals(Expected, Actual: integer);
begin
  AssertEquals('', Expected, Actual);
end;

class procedure TAssert.AssertEquals(const AMessage: string; Expected, Actual: int64);
begin
  AssertTrue(AMessage + ComparisonMsg(IntToStr(Expected), IntToStr(Actual)), Expected = Actual);
end;

class procedure TAssert.AssertEquals(Expected, Actual: int64);
begin
  AssertEquals('', Expected, Actual);
end;


class procedure TAssert.AssertEquals(const AMessage: string; Expected, Actual: currency);
begin
  AssertTrue(AMessage + ComparisonMsg(FloatToStr(Expected), FloatToStr(Actual)), Expected = Actual);
end;

class procedure TAssert.AssertEquals(Expected, Actual: currency);
begin
   AssertEquals('', Expected, Actual);
end;

class procedure TAssert.AssertEquals(const AMessage: string; Expected, Actual, Delta: double);
begin
  AssertTrue(AMessage + ComparisonMsg(FloatToStr(Expected),FloatToStr(Actual)), 
    (Abs(Expected - Actual) <= Delta));
end;

class procedure TAssert.AssertEquals(Expected, Actual, Delta: double);
begin
  AssertEquals('', Expected, Actual, Delta);
end;

class procedure TAssert.AssertNotNull(const AMessage, AString: string);
begin
  AssertTrue(AMessage, AString <> ''); 
end;
 
class procedure TAssert.AssertEquals(const AMessage: string; Expected, Actual: boolean);
begin
  AssertTrue(AMessage + ComparisonMsg(BoolToStr(Expected), BoolToStr(Actual)), Expected = Actual);
end;

class procedure TAssert.AssertEquals(Expected, Actual: boolean);
begin
  AssertEquals('', Expected, Actual);
end;

class procedure TAssert.AssertEquals(const AMessage: string; Expected, Actual: char);
begin
  AssertTrue(AMessage + ComparisonMsg(Expected, Actual), Expected = Actual);
end;

class procedure TAssert.AssertEquals(Expected, Actual: char);
begin
  AssertEquals('', Expected, Actual);
end;

class procedure TAssert.AssertEquals(const AMessage: string; Expected, Actual: TClass);
begin
  AssertTrue(AMessage + ComparisonMsg(Expected.ClassName, Actual.ClassName), Expected = Actual);
end;

class procedure TAssert.AssertEquals(Expected, Actual: TClass);
begin
  AssertEquals('', Expected, Actual);
end;

class procedure TAssert.AssertSame(const AMessage: string; Expected, Actual: TObject);
begin
  AssertTrue(AMessage + ComparisonMsg(IntToStr(PtrInt(Expected)), IntToStr(PtrInt(Actual))), 
    Expected = Actual);
end;

class procedure TAssert.AssertSame(Expected, Actual: TObject);
begin
  AssertSame('', Expected, Actual);
end;

class procedure TAssert.AssertNotSame(const AMessage: string; Expected, Actual: TObject);
begin
  AssertFalse(SExpectedNotSame, Expected = Actual);
end;

class procedure TAssert.AssertNotSame(Expected, Actual: TObject);
begin
  AssertNotSame('', Expected, Actual);
end;

class procedure TAssert.AssertNotNull(const AMessage: string; AObject: TObject);
begin
  AssertTrue(AMessage, (AObject <> nil));
end;

class procedure TAssert.AssertNotNull(AObject: TObject);
begin
  AssertNotNull('', AObject);
end;

class procedure TAssert.AssertNull(const AMessage: string; AObject: TObject);
begin
  AssertTrue(AMessage, (AObject = nil));
end;

class procedure TAssert.AssertNull(AObject: TObject);
begin
  AssertNull('', AObject);
end;

class procedure TAssert.AssertException(const AMessage: string; AExceptionClass: ExceptClass;
  AMethod: TRunMethod);
var
  Passed : Boolean;
  ExceptionName: string;
begin
  Passed := False;
  try
    AMethod;
  except
    on E: Exception do
    begin
      ExceptionName := E.ClassName;
      if E.ClassType.InheritsFrom(AExceptionClass) then
      begin
        Passed := AExceptionClass.ClassName = E.ClassName;
      end;
    end;
  end;
  AssertTrue(Format(SExceptionCompare, [AExceptionClass.ClassName, ExceptionName])+ ': ' + AMessage, Passed);
end;

class procedure TAssert.AssertException(AExceptionClass: ExceptClass;
  AMethod: TRunMethod);
begin
  AssertException('', AExceptionClass, AMethod);
end;

constructor TTestCase.Create;
begin
  inherited Create;
end;   

constructor TTestCase.CreateWithName(const AName: string);
begin
  Create;
  FName := AName;
end;

constructor TTestCase.CreateWith(const AName: string; const ATestSuiteName: string);
begin
  Create;
  FName := AName;
  FTestSuiteName := ATestSuiteName;
end;

function TTestCase.AsString: string;
begin
  Result := TestName + '(' + ClassName + ')';
end;

function TTestCase.CountTestCases: integer;
begin
  Result := 1;
end;

function TTestCase.CreateResult: TTestResult;
begin
  Result := TTestResult.Create;
end;


function TTestCase.GetTestName: string;
begin
  Result := FName;
end;

function TTestCase.GetTestSuiteName: string;
begin
  Result := FTestSuiteName;
end;

procedure TTestCase.SetTestSuiteName(const aName: string);
begin
  if FTestSuiteName <> aName then
    FTestSuiteName := aName;
end;

procedure TTestCase.SetTestName(const Value: string);
begin
  FName := Value;
end;

function TTestCase.CreateResultAndRun: TTestResult;
begin
  Result := CreateResult;
  Run(Result);
end;

procedure TTestCase.Run(AResult: TTestResult);
begin
  (AResult).Run(Self);
end;

procedure TTestCase.RunBare;
begin
  SetUp;
  try
    RunTest;
  finally
    TearDown;
  end;
end;

procedure TTestCase.RunTest;
var
  m: TMethod;
  RunMethod: TRunMethod;
  pMethod : Pointer;
begin
  AssertNotNull(FName);
  pMethod := Self.MethodAddress(FName);
  if (Assigned(pMethod)) then 
  begin
    m.Code := pMethod;
    m.Data := self;
    RunMethod := TRunMethod(m);
    RunMethod;
  end
  else 
    begin
      Fail(format(SMethodNotFound, [FName])); 
    end;
end;

procedure TTestCase.SetUp;
begin

end;

procedure TTestCase.TearDown;
begin

end;

constructor TTestSuite.Create(AClass: TClass; AName: string);
begin
  Create(AClass);
  FName := AName;
end;

constructor TTestSuite.Create(AClass: TClass);
var
  ml: TStringList;
  i: integer;
  tc: TTestClass;
begin
  Create(AClass.ClassName);
  if AClass.InheritsFrom(TTestCase) then
  begin
    tc := TTestClass(AClass);
    ml := TStringList.Create;
    try
      GetMethodList(AClass, ml);
      for i := 0 to ml.Count -1 do
      begin
        AddTest(tc.CreateWith(ml.Strings[i], tc.ClassName));
      end;
    finally
      ml.Free;
    end;
  end
  else
    AddTest(Warning(AClass.ClassName + SNoValidInheritance));
  if FTests.Count = 0 then
    AddTest(Warning(SNoValidTests + AClass.ClassName));
end;

constructor TTestSuite.Create(AClassArray: Array of TClass); 
var
  i: integer;
begin
  Create;
  for i := Low(AClassArray) to High(AClassArray) do
    if Assigned(AClassArray[i]) then
      AddTest(TTestSuite.Create(AClassArray[i]));
end;

constructor TTestSuite.Create(AName: string);
begin
  Create();
  FName := AName;
end;

constructor TTestSuite.Create;
begin
  inherited Create;
  FTests := TList.Create;
end;

destructor TTestSuite.Destroy;
begin
  FreeObjects(FTests);
  FTests.Free;
  inherited Destroy;
end;

function TTestSuite.GetTest(Index: integer): TTest;
begin
  Result := TTest(FTests[Index]);
end;

function TTestSuite.GetTestName: string;
begin
  Result := FName;
end;

function TTestSuite.GetTestSuiteName: string;
begin
  Result := FTestSuiteName;
end;

procedure TTestSuite.SetTestName(const Value: string);
begin
  FName := Value;
end;

procedure TTestSuite.SetTestSuiteName(const aName: string);
begin
  if FTestSuiteName <> aName then
    FTestSuiteName := aName;
end;

function TTestSuite.CountTestCases: integer;
var
  i: integer;
begin
  Result := 0;
  for i := 0 to FTests.Count - 1 do
  begin
    Result := Result + TTest(FTests[i]).CountTestCases;
  end;
end;

procedure TTestSuite.Run(AResult: TTestResult); 
var
  i: integer;
begin
  for i := 0 to FTests.Count - 1 do
    RunTest(TTest(FTests[i]), AResult);
end;

procedure TTestSuite.RunTest(ATest: TTest; AResult: TTestResult);
begin
  ATest.Run(AResult);
end;

procedure TTestSuite.AddTest(ATest: TTest);
begin
  FTests.Add(ATest);
  if ATest.TestSuiteName = '' then
    ATest.TestSuiteName := Self.TestName;
end;

procedure TTestSuite.AddTestSuiteFromClass(ATestClass: TClass); 
begin
  AddTest(TTestSuite.Create(ATestClass));
end;

class function TTestSuite.Warning(const aMessage: string): TTestCase;
var
  w: TTestWarning;
begin
  w := TTestWarning.Create;
  w.FMessage := aMessage;
  Result := w;
end;

constructor TTestResult.Create;
begin
  inherited Create;
  FFailures := TList.Create;
  FErrors := TList.Create;
  FListeners := TList.Create;
end;

destructor TTestResult.Destroy;
begin
  FreeObjects(FFailures);
  FFailures.Free;
  FreeObjects(FErrors);
  FErrors.Free;
  FListeners.Free;
end;

procedure TTestResult.ClearErrorLists;
begin
  FreeObjects(FFailures);
  FFailures.Clear;
  FreeObjects(FErrors);
  FErrors.Clear;
end;

function TTestResult.GetNumErrors: integer;
begin
  Result := FErrors.Count;
end;

function TTestResult.GetNumFailures: integer;
begin
  Result := FFailures.Count;
end;

procedure TTestResult.AddListener(AListener: ITestListener);
begin
  FListeners.Add(pointer(AListener));
end;

procedure TTestResult.RemoveListener(AListener: ITestListener);
begin
  FListeners.Remove(pointer(AListener));
end;

procedure TTestResult.AddFailure(ATest: TTest; E: EAssertionFailedError);
var
  i: integer;
  f: TTestFailure;
begin
  //lock mutex
  f := TTestFailure.CreateFailure(ATest, E);
  FFailures.Add(f);
  for i := 0 to FListeners.Count - 1 do
    ITestListener(FListeners[i]).AddFailure(ATest, f);
  //unlock mutex
end;

procedure TTestResult.AddError(ATest: TTest; E: Exception;
  AUnitName: string; AMethodName: string; ALineNumber: longint);
var
  i: integer;
  f: TTestFailure;
begin
  //lock mutex
  f := TTestFailure.CreateFailure(ATest, E);
  f.SourceUnitName := AUnitName;
  f.MethodName := AMethodName;
  f.LineNumber := ALineNumber;
  FErrors.Add(f);
  for i := 0 to FListeners.Count - 1 do
    ITestListener(FListeners[i]).AddError(ATest, f);
  //unlock mutex
end;

procedure TTestResult.EndTest(ATest: TTest);
var
  i: integer;
begin
  for i := 0 to FListeners.Count - 1 do
    ITestListener(FListeners[i]).EndTest(ATest);
end;


procedure TTestResult.Run(ATestCase: TTestCase);
begin
  StartTest(ATestCase);
  RunProtected(ATestCase);
  EndTest(ATestCase);
end;

procedure TTestResult.RunProtected(ATestCase: TTestCase);
var
  func, source: shortstring;
  line: longint;
begin
  func := '';
  source := '';
  line := 0;
  try
    ATestCase.RunBare;
  except
    on E: EAssertionFailedError do AddFailure(ATestCase, E);
    on E: Exception do
      begin
      {$ifdef SHOWLINEINFO}
        GetLineInfo(LongWord(ExceptAddr), func, source, line);
      {$endif}
        AddError(ATestCase, E, source, func, line);
      end;
  end;
end;

procedure TTestResult.StartTest(ATest: TTest);
var
  count: integer;
  i: integer;
begin
  count := ATest.CountTestCases;
  //lock mutex
  FRunTests := FRunTests + count;
  for i := 0 to FListeners.Count - 1 do
    ITestListener(FListeners[i]).StartTest(ATest);
  //unlock mutex  
end;

function TTestResult.WasSuccessful: boolean;
begin
//lock mutex
  Result := (FErrors.Count = 0) and (FFailures.Count = 0);
//unlock mutex
end;

end.