java - 如何测试 primefaces UploadedFile 组件的 JUnit 测试用例

Question

我想使用 JUnit 测试用例来测试文件上传组件。我有办法获得 UploadedFile 的模拟实现。我正在使用下面的代码从 UI 读取上传的文件。

public void XXXX(final FileUploadEvent event) {

        final String uniqueFolderName = this.getUniqueFolderName();

        final org.primefaces.model.UploadedFile uploadedFile = event.getFile();

        final UploadedFileWrapper uploadedFileWrapper = new UploadedFileWrapper(uploadedFile,
                UploadedFile.Status.FILE_SAVED, uniqueFolderName);

        if (!new Boolean(this.multiple)) {
            LOGGER.debug("only single upload is allowed", this.getMultiple());
            this.clearUploadedFiles();
        }

        this.uploadedFiles.add(uploadedFileWrapper);
    }

您能帮我如何为此组件创建模拟实现吗？

Answer 1

这就是 Mockito 的实现方式:

    File file = new File("src/test/TestUploadFile.txt");
    InputStream inputStream = new FileInputStream(file);
    FileUploadEvent event = Mockito.mock(FileUploadEvent.class);
    UploadedFile uploadedFile = Mockito.mock(UploadedFile.class);
    Mockito.when(uploadedFile.getFileName()).thenReturn(file.getName());
    Mockito.when(uploadedFile.getContentType()).thenReturn("application/octet-stream");
    Mockito.when(uploadedFile.getInputstream()).thenReturn(inputStream);
    Mockito.when(event.getFile()).thenReturn(uploadedFile);

我提取一个测试文件并创建一个输入流。然后我模拟 FileUploadEvent 和 UploadedFile 并设置我需要的特定属性，您可能需要模拟更多属性。