使用EasyMock的PowerMock Java URL

我有以下代码

@Test
public void wrapSoapTest1() throws TransformerConfigurationException, IOException {
    RequestUtil r = new RequestUtil(SAMPLE_REQUEST_BEFORE.getBytes(),"");
    URL url = PowerMock.createNiceMock(URL.class);
    r.setXslUrl(url);
    EasyMock.expect(url.openStream()).andReturn(IOUtils.toInputStream(XSLT, "UTF-8"));
    Assert.assertEquals(SAMPLE_REQUEST_AFTER, new String(r.wrapSOAP()));
}

当我运行这个程序时，虽然我得到了以下错误

java.lang.AbstractMethodError: java/net/URLStreamHandler.openConnection(Ljava/net/URL;)Ljava/net/URLConnection;
at java.net.URL.openConnection(URL.java:957)

---

有没有办法模拟URL并发送自定义字符串作为响应？

如果使用

PowerMock

您必须确保您的测试用例用

@RunWith（PowerMockRunner.class）

注释。然后必须告诉

PowerMock

为测试准备

URL

类（

@PrepareForTest（{URL.class}）

），并且应该使用

PowerMock.expectLastCall（）

而不是

EasyMock

方法。至少您必须将模拟设置为重播模式

这应该行得通

@RunWith(PowerMockRunner.class)
@PrepareForTest({ URL.class })
public class SoapTest {
    @Test
    public void wrapSoapTest1() throws TransformerConfigurationException,
        IOException {
        RequestUtil r = new RequestUtil(SAMPLE_REQUEST_BEFORE.getBytes(),"");
        URL url = PowerMock.createNiceMock(URL.class);
        r.setXslUrl(url);
        url.openStream();
        PowerMock.expectLastCall().andReturn(IOUtils.toInputStream(XSLT, "UTF-8"));
        PowerMock.replay(url);
        Assert.assertEquals(SAMPLE_REQUEST_AFTER, new String(r.wrapSOAP()));
    }
}

---

我的版本看起来像这样

private URL mockURL() throws IOException{
    final URLConnection mockConnection = PowerMock.createMock(URLConnection.class);
    InputStream i = IOUtils.toInputStream(XSLT, "UTF-8");
    EasyMock.expect(mockConnection.getInputStream()).andReturn(i);
    EasyMock.replay(mockConnection);
    final URLStreamHandler handler = new URLStreamHandler() {
        @Override
        protected URLConnection openConnection(final URL arg0)
                throws IOException {
            return mockConnection;
        }
    };
    return new URL("http://foo.bar", "foo.bar", 80, "", handler);
}

---

我有TestNG、PowerMock和EasyMock，唯一的区别是我必须添加@PrepareForTest（{MyTestedClass.class}），在我的例子中，MyTestedClass是UrlScreenRequest

    @PrepareForTest({UrlScreenRequest.class})
    public class UrlScreenRequestTest  extends PowerMockTestCase {
    ...
    @Test
    public void testValidatePermission() throws Exception {
      URL url=PowerMock.createNiceMock(URL.class);
      HttpURLConnection connection = createMock(HttpURLConnection.class);
      url.openConnection();
      PowerMock.expectLastCall().andReturn(connection);
      PowerMock.replayAll(url, connection);
      UrlScreenRequest request = new UrlScreenRequest(url);
      request.validatePermission();
      //validation
    }
    ...

---

试过了，但还是没用，不得不模仿URLConnection（？）我会在稍后发布更多信息。这对我们也有用，如果你不想更改处理程序，请查看我的解决方案。