我有一个类TMyClass
,我在这个类上注入了接口IFileManager
,这个接口里面有一个方法GetCompanyWorkbook(const ACompanyId: System.Integer; const AStream: TStream)
,这个方法从ACompanyId
填充AStream
的depend,在真实的代码上一切都很好,但是当我运行类TMyClass
的单元测试,通过 frameworkSpring 4D模拟IFileManager
的时候,FastMM报告内存泄漏13-20 bytes: TIndexWrapper x 1
。我使用了存储库(分支 * 主/主 *)中的最新Spring 4D版本1.26
unit Unit1.pas
interface
DUnitX.TestFramework,
Spring.Mocking;
type
IFileManager = interface (IInvokable)
procedure GetCompanyWorkbook(const ACompanyId: System.Integer; const AStream: TStream);
end;
TMyClass = class
strict private
FFileManager: IFileManager;
public
constructor Create(const AFileManager: IFileManager);
procedure GenerateInvoice(const ACompanyId: System.Integer);
end;
[TestFixture]
TMyClassTests = class
strict private
FMockStream: TStream;
FMyClass: TMyClass;
FFileManager: Mock<IFileManager>;
procedure SetupFileManagerMock();
procedure InitMockStream(const AMockFile: string);
public
[Setup]
procedure Setup();
[TearDown]
procedure TearDown();
[TestCase('Test invoice generation', '2|invoice_2023.xls', '|')]
procedure TestGenerateInvoice(const ACompanyId: System.Integer; const AMockFile: string);
end;
implementation
uses
System.Classes,
Spring;
constructor TMyClass.Create(const AFileManager: IFileManager);
begin
Guard.CheckNotNull(AFileManager, 'AFileManager');
inherited Create();
Self.FFileManager := AFileManager;
end;
procedure TMyClass.GenerateInvoice(const ACompanyId: System.Integer);
begin
var sTmpFile := Self.GetTempInvoiceFile(ACompanyId);
var fs := TFileStream.Create(sTmpFile, fmCreate);
try
Self.FFileManager.GetComparyWorkbook(ACompanyId, fs);
// Do some operations with stream
finally
fs.Free();
end;
end;
procedure TMyClassTests.Setup();
begin
Self.FMockStream := nil;
Self.FMyClass := TMyClass.Create(Self.FFileManager);
end;
procedure TMyClassTests.TearDown();
begin
Self.FMyClass.Free();
Self.FMockStream.Free();
end;
procedure TMyClassTests.InitMockStream(const AMockFile: string);
begin
Self.FMockStream := TFileStream.Create(AMockFile, fmOpenRead);
end;
procedure TMyClassTests.SetupFileManagerMock();
begin
Self.FFileManager.Setup.Executes(
function(const callInfo: TCallInfo): TValue
begin
callInfo.Args[1].AsType<TStream>.CopyFrom(Self.FMockStream);
end)
.When(Args.Any)
.GetCompanyWorkbook(Arg.IsAny<System.Integer>, Arg.IsAny<TStream>);
end;
procedure TMyClassTests.TestGenerateInvoice(const ACompanyId: System.Integer; const AMockFile: string);
begin
Self.InitMockStream(AMockFile);
Self.SetupFileManagerMock();
Assert.WillNotRaiseAny(
procedure
begin
Self.FMyClass.GenerateInvoice(ACompanyId);
end
);
end;
1条答案
按热度按时间eoxn13cs1#
问题是您使用的构造是多余的:
将
Args.Any
传递给When
或对参数使用单独的Arg匹配。传递Args.Any
会导致模拟在内部忽略单独的参数匹配。这会导致用于参数匹配的临时构造对象泄漏,这一问题需要修复。