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package fi.iki.elonen;
import java.util.HashMap;
import java.util.Map;
import org.junit.Before;
import org.junit.Test;
import fi.iki.elonen.NanoHTTPD.IHTTPSession;
import fi.iki.elonen.NanoHTTPD.Response;
import org.junit.runner.RunWith;
import org.mockito.ArgumentCaptor;
import org.mockito.Captor;
import org.mockito.Mock;
import org.mockito.runners.MockitoJUnitRunner;
import static junit.framework.Assert.*;
import static org.mockito.Matchers.any;
import static org.mockito.Mockito.atLeast;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
@RunWith(MockitoJUnitRunner.class)
public class WebSocketResponseHandlerTest {
@Mock
private IHTTPSession session;
@Mock
private WebSocket webSocket;
@Mock
private IWebSocketFactory webSocketFactory;
@Mock
private Response response;
@Captor
private ArgumentCaptor<String> headerNameCaptor;
@Captor
private ArgumentCaptor<String> headerCaptor;
private Map<String, String> headers;
private WebSocketResponseHandler responseHandler;
@Before
public void setUp() {
headers = new HashMap<String, String>();
headers.put("upgrade", "websocket");
headers.put("connection", "Upgrade");
headers.put("sec-websocket-key", "x3JJHMbDL1EzLkh9GBhXDw==");
headers.put("sec-websocket-protocol", "chat, superchat");
headers.put("sec-websocket-version", "13");
when(session.getHeaders()).thenReturn(headers);
when(webSocketFactory.openWebSocket(any(IHTTPSession.class))).thenReturn(webSocket);
when(webSocket.getHandshakeResponse()).thenReturn(response);
responseHandler = new WebSocketResponseHandler(webSocketFactory);
}
@Test
public void testHandshakeReturnsResponseWithExpectedHeaders() {
Response handshakeResponse = responseHandler.serve(session);
verify(webSocket).getHandshakeResponse();
assertNotNull(handshakeResponse);
assertSame(response, handshakeResponse);
verify(response, atLeast(1)).addHeader(headerNameCaptor.capture(), headerCaptor.capture());
assertHeader(0, "sec-websocket-accept", "HSmrc0sMlYUkAGmm5OPpG2HaGWk=");
assertHeader(1, "sec-websocket-protocol", "chat");
}
@Test
public void testWrongWebsocketVersionReturnsErrorResponse() {
headers.put("sec-websocket-version", "12");
Response handshakeResponse = responseHandler.serve(session);
assertNotNull(handshakeResponse);
assertEquals(Response.Status.BAD_REQUEST, handshakeResponse.getStatus());
}
@Test
public void testMissingKeyReturnsErrorResponse() {
headers.remove("sec-websocket-key");
Response handshakeResponse = responseHandler.serve(session);
assertNotNull(handshakeResponse);
assertEquals(Response.Status.BAD_REQUEST, handshakeResponse.getStatus());
}
@Test
public void testWrongUpgradeHeaderReturnsNullResponse() {
headers.put("upgrade", "not a websocket");
Response handshakeResponse = responseHandler.serve(session);
assertNull(handshakeResponse);
}
@Test
public void testWrongConnectionHeaderReturnsNullResponse() {
headers.put("connection", "Junk");
Response handshakeResponse = responseHandler.serve(session);
assertNull(handshakeResponse);
}
@Test
public void testConnectionHeaderHandlesKeepAlive_FixingFirefoxConnectIssue() {
headers.put("connection", "keep-alive, Upgrade");
Response handshakeResponse = responseHandler.serve(session);
verify(webSocket).getHandshakeResponse();
assertNotNull(handshakeResponse);
assertSame(response, handshakeResponse);
}
private void assertHeader(int index, String name, String value) {
assertEquals(name, headerNameCaptor.getAllValues().get(index));
assertEquals(value, headerCaptor.getAllValues().get(index));
}
}
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