晚安
当我尝试执行此测试时，返回此错误。java.lang.NullPointerException: at the height of .map(dataBuffer -> { lines below....
随附测试：

@Test
    void testing_1() throws UnsupportedEncodingException {
        FilePart filePart = BDDMockito.mock(FilePart.class);
        BDDMockito.given(filePart.filename()).willReturn("resources/ejemplo.csv");
        Mockito.when(repo.metodo(any())).thenReturn("Abcd");                
        service.importData(filePart);}

类服务：

public Flux<String> importData(FilePart filePart) {
        return filePart.content().map(dataBuffer -> { // This line throw NullPointerException
                    byte[] bytes = new byte[dataBuffer.readableByteCount()];
                    dataBuffer.read(bytes);
                    DataBufferUtils.release(dataBuffer);
                    return bytes;})
                .map(t -> {});
}

也许您知道模拟filePart或filePart.content（）的方法吗？