英文:
How to create a mock object of org.springframework.http.codec.multipart.FilePart for Junit
问题
我正在尝试为一个接受类型为"org.springframework.http.codec.multipart.FilePart"的参数的函数编写单元测试用例。
然而，我无法弄清楚如何创建实现上述接口的类的模拟对象。
通过浏览一些文档，我发现了MockMultipartFile，但我无法确定是否可以使用上述对象来构造org.springframework.http.codec.multipart.FilePart类型的实例。
private boolean isValidFile(FilePart filePart){
boolean valid = true;
// 做一些操作
return valid;
}
有人能帮我吗？
英文:
I am trying to write unit test case for a function which takes a parameter of type "org.springframework.http.codec.multipart.FilePart" as an input.
However I am not able to figure out how to create a mock object of the class implementing above interface.
Browsing through some documentation, I found about MockMultipartFile, however I am not able to figure out if the above object can be used to construct an instance of org.springframework.http.codec.multipart.FilePart type.
private boolean isValidFile(FilePart filePart){
boolean valid = true;
// Do Something
return valid;
}
Can someone help me out please ?
答案1
得分: 2
以下是翻译好的代码部分：
最佳模拟 FilePart 的方法是：
import java.io.File;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.springframework.http.codec.multipart.FilePart;
import static org.mockito.BDDMockito.given;
import static org.mockito.BDDMockito.mock;
class ImageCreateDtoConverterTest {
private static final String ACCOUNT_ID = "accountId";
private static final Integer STATUS_CODE = 1;
private ImageCreateDtoConverter imageCreateDtoConverter;
@BeforeEach
void setUp() {
this.imageCreateDtoConverter = new ImageCreateDtoConverter();
}
@Test
void convert() throws Exception {
FilePart filePart = mock(FilePart.class);
given(filePart.filename()).willReturn("TestImage.png");
File file = new File(filePart.filename());
var expected = new ImageCreateDto(STATUS_CODE, ACCOUNT_ID, file);
var actual = imageCreateDtoConverter.convert(ACCOUNT_ID, STATUS_CODE,
filePart);
Assertions.assertEquals(expected, actual);
}
}
英文:
The best way for mocking FilePart is:
import java.io.File;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.springframework.http.codec.multipart.FilePart;
import static org.mockito.BDDMockito.given;
import static org.mockito.BDDMockito.mock;
class ImageCreateDtoConverterTest {
private static final String ACCOUNT_ID = "accountId";
private static final Integer STATUS_CODE = 1;
private ImageCreateDtoConverter imageCreateDtoConverter;
@BeforeEach
void setUp() {
this.imageCreateDtoConverter = new ImageCreateDtoConverter();
}
@Test
void convert() throws Exception {
FilePart filePart = mock(FilePart.class);
given(filePart.filename()).willReturn("TestImage.png");
File file = new File(filePart.filename());
var expected = new ImageCreateDto(STATUS_CODE, ACCOUNT_ID, file);
var actual = imageCreateDtoConverter.convert(ACCOUNT_ID, STATUS_CODE,
filePart);
Assertions.assertEquals(expected, actual);
}
}
答案2
得分: 1
我已经通过我的独立接口部分来实现了。
private static class PartImpl implements Part {
@Override
public String name() {
return "name";
}
@Override
public HttpHeaders headers() {
return HttpHeaders.EMPTY;
}
@Override
public Flux<DataBuffer> content() {
return DataBufferUtils.read(
new ByteArrayResource("name".getBytes(StandardCharsets.UTF_8)), factory, 1024);
}
}
在只是使用我实现的类进行模拟后，它按预期工作。
附：对于工厂，只需使用默认的一个。
static final DataBufferFactory factory = new DefaultDataBufferFactory();
对于 FilePart，只需按相同方式实现即可。
英文:
I was figured out implementing by my own interface Part.
private static class PartImpl implements Part {
@Override
public String name() {
return "name";
}
@Override
public HttpHeaders headers() {
return HttpHeaders.EMPTY;
}
@Override
public Flux<DataBuffer> content() {
return DataBufferUtils.read(
new ByteArrayResource("name".getBytes(StandardCharsets.UTF_8)), factory, 1024);
}
}
After just mock with my implemented class and it worked as expected.
P.S. For factory just use Default one
static final DataBufferFactory factory = new DefaultDataBufferFactory();
For FilePart just implement the same way.
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