Example usage for java.util Collections emptyEnumeration

Introduction

In this page you can find the example usage for java.util Collections emptyEnumeration.

Prototype

@SuppressWarnings("unchecked")
public static <T> Enumeration<T> emptyEnumeration() 

Source Link

Document

Returns an enumeration that has no elements.

Usage

From source file:org.openqa.grid.internal.listener.CommandListenerTest.java

@Test
public void canModifyResponseWithListener() throws IOException {
    Registry registry = Registry.newInstance();
    registry.add(new MyRemoteProxy(req, registry));

    RequestHandler req = GridHelper.createNewSessionHandler(registry, app1);
    req.process();/*from   w ww.  j av a  2 s.  c o m*/
    TestSession session = req.getSession();

    // Mock the request so it seems like a new session
    SeleniumBasedRequest request = mock(SeleniumBasedRequest.class);
    when(request.getRequestURI()).thenReturn("session");
    when(request.getServletPath()).thenReturn("session");
    when(request.getContextPath()).thenReturn("");
    when(request.getMethod()).thenReturn("GET");

    Enumeration<String> strings = Collections.emptyEnumeration();
    when(request.getHeaderNames()).thenReturn(strings);

    HttpServletResponse response = mock(HttpServletResponse.class);
    ServletOutputStream stream = mock(ServletOutputStream.class);
    when(response.getOutputStream()).thenReturn(stream);

    session.forward(request, response, true);

    // When the output stream is being written back to the remote, it should
    // only contain the bits we modified in
    // MyRemoteProxy's afterCommand method
    verify(stream).write(responseBytes);
}

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From source file:io.nebo.container.NettyEmbeddedContext.java

@Override
public Enumeration<String> getAttributeNames() {
    return Collections.emptyEnumeration();
}

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From source file:com.amazonaws.serverless.proxy.internal.servlet.AwsProxyHttpServletRequest.java

@Override
public Enumeration<String> getHeaderNames() {
    if (request.getHeaders() == null) {
        return Collections.emptyEnumeration();
    }/*  ww w  .  j  av a2 s .c o  m*/
    return Collections.enumeration(request.getHeaders().keySet());
}

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From source file:javarestart.WebClassLoader.java

/**
 * Returns none or zero resources: it just wraps findResource now.
 * TODO: extend client-server protocol to support fetching multiple resources by the given name.
 */// w  w  w .  jav a2s.  c o m
@Override
public Enumeration<URL> findResources(String name) throws IOException {
    URL url = findResource(name);
    if (url == null)
        return Collections.emptyEnumeration();
    return new Enumeration<URL>() {
        private boolean hasMore = true;

        @Override
        public boolean hasMoreElements() {
            return hasMore;
        }

        @Override
        public URL nextElement() {
            hasMore = false;
            return url;
        }
    };
}

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From source file:com.astamuse.asta4d.web.test.dispatch.RequestDispatcherTest.java

@Test(dataProvider = "data")
public void execute(String method, String url, int status, ContentProvider contentProvider) throws Exception {
    WebApplicationContext context = (WebApplicationContext) Context.getCurrentThreadContext();
    HttpServletRequest request = context.getRequest();
    HttpServletResponse response = context.getResponse();
    HttpSession session = mock(HttpSession.class);

    when(request.getParameterNames()).thenReturn(Collections.emptyEnumeration());
    when(request.getCookies()).thenReturn(new Cookie[0]);
    when(request.getHeaderNames()).thenReturn(Collections.emptyEnumeration());
    when(request.getSession(true)).thenReturn(session);

    when(request.getRequestURI()).thenReturn(url);
    when(request.getContextPath()).thenReturn("");
    when(request.getMethod()).thenReturn(method);

    final ByteArrayOutputStream responseBos = new ByteArrayOutputStream();
    when(response.getOutputStream()).thenReturn(new ServletOutputStream() {
        @Override/*from   w  w  w.j  a  v  a2  s  .  c om*/
        public void write(int b) throws IOException {
            responseBos.write(b);
        }
    });

    HandyRuleSet ruleSet = new HandyRuleSet();
    initTestRules(ruleSet);

    if (url.equals("/index-rewrite")) {
        context.setAccessURI("/index");
    }

    dispatcher.dispatchAndProcess(ruleSet.getArrangedRuleList());

    // verify status at first then when contentProvider is null, we do not
    // need to do more verification
    if (status != 0) {
        verify(response).setStatus(status);
    }

    if (contentProvider == null) {
        return;
    }

    // prepare expected results
    HttpServletResponse expectedResponse = mock(HttpServletResponse.class);

    final ByteArrayOutputStream expectedBos = new ByteArrayOutputStream();
    when(expectedResponse.getOutputStream()).thenReturn(new ServletOutputStream() {
        @Override
        public void write(int b) throws IOException {
            expectedBos.write(b);
        }
    });

    final List<Pair<String, String>> expectedHeaderList = new LinkedList<>();

    doAnswer(new Answer<Object>() {
        public Object answer(InvocationOnMock invocation) {
            Object[] args = invocation.getArguments();
            expectedHeaderList.add(Pair.of((String) args[0], (String) args[1]));
            return null;
        }
    }).when(expectedResponse).addHeader(anyString(), anyString());

    UrlMappingRule currentRule = context.getCurrentRule();
    contentProvider.produce(currentRule, expectedResponse);

    // verify extra contents like headers and output stream

    for (Pair<String, String> pair : expectedHeaderList) {
        verify(response).addHeader(pair.getKey(), pair.getValue());
    }

    Assert.assertEquals(new String(responseBos.toByteArray()), new String(expectedBos.toByteArray()));

}

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From source file:com.feilong.core.bean.ConvertUtilTest.java

/**
 * Test to enumeration.
 */
@Test
public void testToEnumeration() {
    assertEquals(Collections.emptyEnumeration(), ConvertUtil.toEnumeration(null));
}

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