Clean up ImapConnectionTest

This commit is contained in:
cketti 2017-05-25 03:36:22 +02:00
parent c3c5f958c2
commit f241a0a650
2 changed files with 108 additions and 89 deletions

View file

@ -3,7 +3,9 @@ package com.fsck.k9.mail.store.imap;
import java.io.IOException;
import java.net.UnknownHostException;
import java.util.List;
import android.app.Activity;
import android.net.ConnectivityManager;
import com.fsck.k9.mail.AuthType;
@ -23,7 +25,6 @@ import okio.ByteString;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.InOrder;
import org.robolectric.shadows.ShadowLog;
import static org.hamcrest.core.StringContains.containsString;
@ -32,9 +33,7 @@ import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import static org.mockito.Mockito.inOrder;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
@RunWith(K9LibRobolectricTestRunner.class)
@ -45,10 +44,12 @@ public class ImapConnectionTest {
private static final String PASSWORD = "123456";
private static final int SOCKET_CONNECT_TIMEOUT = 10000;
private static final int SOCKET_READ_TIMEOUT = 10000;
private static final String XOAUTH_TOKEN = "token";
private static final String XOAUTH_ANOTHER_TOKEN = "token2";
private static final String XOAUTH_STRING = ByteString.encodeUtf8(
"user=" + USERNAME + "\001auth=Bearer token\001\001").base64();
"user=" + USERNAME + "\001auth=Bearer " + XOAUTH_TOKEN + "\001\001").base64();
private static final String XOAUTH_STRING_RETRY = ByteString.encodeUtf8(
"user=" + USERNAME + "\001auth=Bearer token2\001\001").base64();
"user=" + USERNAME + "\001auth=Bearer " + XOAUTH_ANOTHER_TOKEN + "\001\001").base64();
private TrustedSocketFactory socketFactory;
@ -60,7 +61,7 @@ public class ImapConnectionTest {
@Before
public void setUp() throws Exception {
connectivityManager = mock(ConnectivityManager.class);
oAuth2TokenProvider = mock(OAuth2TokenProvider.class);
oAuth2TokenProvider = createOAuth2TokenProvider();
socketFactory = new TestTrustedSocketFactory();
settings = new SimpleImapSettings();
@ -86,8 +87,7 @@ public class ImapConnectionTest {
server.output("+");
server.expect(ByteString.encodeUtf8("\000" + USERNAME + "\000" + PASSWORD).base64());
server.output("2 OK Success");
simplePostAuthenticationDialog(server, true, 3);
postAuthenticationDialogRequestingCapabilities(server);
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
imapConnection.open();
@ -105,7 +105,7 @@ public class ImapConnectionTest {
server.output("+");
server.expect(ByteString.encodeUtf8("\000" + USERNAME + "\000" + PASSWORD).base64());
server.output("1 OK Success");
simplePostAuthenticationDialog(server, true, 2);
postAuthenticationDialogRequestingCapabilities(server, 2);
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
imapConnection.open();
@ -123,7 +123,7 @@ public class ImapConnectionTest {
server.output("+");
server.expect(ByteString.encodeUtf8("\000" + USERNAME + "\000" + PASSWORD).base64());
server.output("2 OK Success");
simplePostAuthenticationDialog(server, true);
postAuthenticationDialogRequestingCapabilities(server);
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
imapConnection.open();
@ -139,7 +139,7 @@ public class ImapConnectionTest {
preAuthenticationDialog(server);
server.expect("2 LOGIN \"" + USERNAME + "\" \"" + PASSWORD + "\"");
server.output("2 OK LOGIN completed");
simplePostAuthenticationDialog(server, true);
postAuthenticationDialogRequestingCapabilities(server);
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
imapConnection.open();
imapConnection.close();
@ -183,7 +183,7 @@ public class ImapConnectionTest {
server.output("2 NO Login Failure");
server.expect("3 LOGIN \"" + USERNAME + "\" \"" + PASSWORD + "\"");
server.output("3 OK LOGIN completed");
simplePostAuthenticationDialog(server, true, 4);
postAuthenticationDialogRequestingCapabilities(server, 4);
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
imapConnection.open();
@ -250,7 +250,7 @@ public class ImapConnectionTest {
preAuthenticationDialog(server);
server.expect("2 LOGIN \"" + USERNAME + "\" \"" + PASSWORD + "\"");
server.output("2 OK LOGIN completed");
simplePostAuthenticationDialog(server, true);
postAuthenticationDialogRequestingCapabilities(server);
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
imapConnection.open();
@ -268,7 +268,7 @@ public class ImapConnectionTest {
server.output("+ " + ByteString.encodeUtf8("<0000.000000000@example.org>").base64());
server.expect("dXNlciA2ZjdiOTcyYjk5YTI4NDk4OTRhN2YyMmE3MGRhZDg0OQ==");
server.output("2 OK Success");
simplePostAuthenticationDialog(server, true);
postAuthenticationDialogRequestingCapabilities(server);
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
imapConnection.open();
@ -321,12 +321,11 @@ public class ImapConnectionTest {
@Test
public void open_authXoauthWithSaslIr() throws Exception {
settings.setAuthType(AuthType.XOAUTH2);
when(oAuth2TokenProvider.getToken("user", OAuth2TokenProvider.OAUTH2_TIMEOUT)).thenReturn("token");
MockImapServer server = new MockImapServer();
preAuthenticationDialog(server, "SASL-IR AUTH=XOAUTH AUTH=XOAUTH2");
server.expect("2 AUTHENTICATE XOAUTH2 " + XOAUTH_STRING);
server.output("2 OK Success");
simplePostAuthenticationDialog(server, true);
postAuthenticationDialogRequestingCapabilities(server);
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
imapConnection.open();
@ -338,8 +337,6 @@ public class ImapConnectionTest {
@Test
public void open_authXoauthWithSaslIrThrowsExeptionOn401Response() throws Exception {
settings.setAuthType(AuthType.XOAUTH2);
when(oAuth2TokenProvider.getToken("user", OAuth2TokenProvider.OAUTH2_TIMEOUT))
.thenReturn("token").thenReturn("token2");
MockImapServer server = new MockImapServer();
preAuthenticationDialog(server, "SASL-IR AUTH=XOAUTH AUTH=XOAUTH2");
server.expect("2 AUTHENTICATE XOAUTH2 " + XOAUTH_STRING);
@ -352,8 +349,7 @@ public class ImapConnectionTest {
imapConnection.open();
fail();
} catch (AuthenticationFailedException e) {
assertEquals(
"Command: AUTHENTICATE XOAUTH2; response: #2# [NO, SASL authentication failed]",
assertEquals("Command: AUTHENTICATE XOAUTH2; response: #2# [NO, SASL authentication failed]",
e.getMessage());
}
}
@ -361,8 +357,6 @@ public class ImapConnectionTest {
@Test
public void open_authXoauthWithSaslIrInvalidatesAndRetriesNewTokenOn400Response() throws Exception {
settings.setAuthType(AuthType.XOAUTH2);
when(oAuth2TokenProvider.getToken("user", OAuth2TokenProvider.OAUTH2_TIMEOUT))
.thenReturn("token").thenReturn("token2");
MockImapServer server = new MockImapServer();
preAuthenticationDialog(server, "SASL-IR AUTH=XOAUTH AUTH=XOAUTH2");
server.expect("2 AUTHENTICATE XOAUTH2 " + XOAUTH_STRING);
@ -371,24 +365,18 @@ public class ImapConnectionTest {
server.output("2 NO SASL authentication failed");
server.expect("3 AUTHENTICATE XOAUTH2 " + XOAUTH_STRING_RETRY);
server.output("3 OK Success");
simplePostAuthenticationDialog(server, true, 4);
postAuthenticationDialogRequestingCapabilities(server, 4);
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
imapConnection.open();
server.verifyConnectionStillOpen();
server.verifyInteractionCompleted();
InOrder inOrder = inOrder(oAuth2TokenProvider);
inOrder.verify(oAuth2TokenProvider).getToken("user", OAuth2TokenProvider.OAUTH2_TIMEOUT);
inOrder.verify(oAuth2TokenProvider).invalidateToken("user");
inOrder.verify(oAuth2TokenProvider).getToken("user", OAuth2TokenProvider.OAUTH2_TIMEOUT);
}
@Test
public void open_authXoauthWithSaslIrInvalidatesAndRetriesNewTokenOnInvalidJsonResponse() throws Exception {
settings.setAuthType(AuthType.XOAUTH2);
when(oAuth2TokenProvider.getToken("user", OAuth2TokenProvider.OAUTH2_TIMEOUT))
.thenReturn("token").thenReturn("token2");
MockImapServer server = new MockImapServer();
preAuthenticationDialog(server, "SASL-IR AUTH=XOAUTH AUTH=XOAUTH2");
server.expect("2 AUTHENTICATE XOAUTH2 " + XOAUTH_STRING);
@ -397,24 +385,19 @@ public class ImapConnectionTest {
server.output("2 NO SASL authentication failed");
server.expect("3 AUTHENTICATE XOAUTH2 " + XOAUTH_STRING_RETRY);
server.output("3 OK Success");
simplePostAuthenticationDialog(server, true, 4);
requestCapabilities(server, 4);
simplePostAuthenticationDialog(server, 5);
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
imapConnection.open();
server.verifyConnectionStillOpen();
server.verifyInteractionCompleted();
InOrder inOrder = inOrder(oAuth2TokenProvider);
inOrder.verify(oAuth2TokenProvider).getToken("user", OAuth2TokenProvider.OAUTH2_TIMEOUT);
inOrder.verify(oAuth2TokenProvider).invalidateToken("user");
inOrder.verify(oAuth2TokenProvider).getToken("user", OAuth2TokenProvider.OAUTH2_TIMEOUT);
}
@Test
public void open_authXoauthWithSaslIrInvalidatesAndRetriesNewTokenOnMissingStatusJsonResponse() throws Exception {
settings.setAuthType(AuthType.XOAUTH2);
when(oAuth2TokenProvider.getToken("user", OAuth2TokenProvider.OAUTH2_TIMEOUT))
.thenReturn("token").thenReturn("token2");
MockImapServer server = new MockImapServer();
preAuthenticationDialog(server, "SASL-IR AUTH=XOAUTH AUTH=XOAUTH2");
server.expect("2 AUTHENTICATE XOAUTH2 " + XOAUTH_STRING);
@ -423,24 +406,19 @@ public class ImapConnectionTest {
server.output("2 NO SASL authentication failed");
server.expect("3 AUTHENTICATE XOAUTH2 " + XOAUTH_STRING_RETRY);
server.output("3 OK Success");
simplePostAuthenticationDialog(server, true, 4);
requestCapabilities(server, 4);
simplePostAuthenticationDialog(server, 5);
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
imapConnection.open();
server.verifyConnectionStillOpen();
server.verifyInteractionCompleted();
InOrder inOrder = inOrder(oAuth2TokenProvider);
inOrder.verify(oAuth2TokenProvider).getToken("user", OAuth2TokenProvider.OAUTH2_TIMEOUT);
inOrder.verify(oAuth2TokenProvider).invalidateToken("user");
inOrder.verify(oAuth2TokenProvider).getToken("user", OAuth2TokenProvider.OAUTH2_TIMEOUT);
}
@Test
public void open_authXoauthWithSaslIrWithOldTokenThrowsExceptionIfRetryFails() throws Exception {
settings.setAuthType(AuthType.XOAUTH2);
when(oAuth2TokenProvider.getToken("user", OAuth2TokenProvider.OAUTH2_TIMEOUT))
.thenReturn("token").thenReturn("token2");
MockImapServer server = new MockImapServer();
preAuthenticationDialog(server, "SASL-IR AUTH=XOAUTH AUTH=XOAUTH2");
server.expect("2 AUTHENTICATE XOAUTH2 " + XOAUTH_STRING);
@ -451,15 +429,14 @@ public class ImapConnectionTest {
server.output("+ 433ba3a3a");
server.expect("");
server.output("3 NO SASL authentication failed");
simplePostAuthenticationDialog(server, true);
postAuthenticationDialogRequestingCapabilities(server);
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
try {
imapConnection.open();
fail();
} catch (AuthenticationFailedException e) {
assertEquals(
"Command: AUTHENTICATE XOAUTH2; response: #3# [NO, SASL authentication failed]",
assertEquals("Command: AUTHENTICATE XOAUTH2; response: #3# [NO, SASL authentication failed]",
e.getMessage());
}
}
@ -467,15 +444,15 @@ public class ImapConnectionTest {
@Test
public void open_authXoauthWithSaslIrParsesCapabilities() throws Exception {
settings.setAuthType(AuthType.XOAUTH2);
when(oAuth2TokenProvider.getToken("user", OAuth2TokenProvider.OAUTH2_TIMEOUT))
.thenReturn("token");
MockImapServer server = new MockImapServer();
preAuthenticationDialog(server, "SASL-IR AUTH=XOAUTH AUTH=XOAUTH2");
server.expect("2 AUTHENTICATE XOAUTH2 " + XOAUTH_STRING);
server.output("2 OK [CAPABILITY IMAP4REV1 IDLE XM-GM-EXT-1]");
simplePostAuthenticationDialog(server, false);
simplePostAuthenticationDialog(server, 3);
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
imapConnection.open();
server.verifyConnectionStillOpen();
server.verifyInteractionCompleted();
assertTrue(imapConnection.hasCapability("XM-GM-EXT-1"));
@ -488,7 +465,7 @@ public class ImapConnectionTest {
preAuthenticationDialog(server, "AUTH=EXTERNAL");
server.expect("2 AUTHENTICATE EXTERNAL " + ByteString.encodeUtf8(USERNAME).base64());
server.output("2 OK Success");
simplePostAuthenticationDialog(server, true);
postAuthenticationDialogRequestingCapabilities(server);
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
imapConnection.open();
@ -548,7 +525,7 @@ public class ImapConnectionTest {
server.expect("3 CAPABILITY");
server.output("* CAPABILITY IDLE");
server.output("3 OK CAPABILITY Completed");
simplePostAuthenticationDialog(server, false, 4);
simplePostAuthenticationDialog(server, 4);
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
imapConnection.open();
@ -570,7 +547,7 @@ public class ImapConnectionTest {
"ENABLE MOVE CONDSTORE ESEARCH UTF8=ACCEPT LIST-EXTENDED LIST-STATUS LITERAL- SPECIAL-USE " +
"APPENDLIMIT=35651584");
server.output("2 OK");
simplePostAuthenticationDialog(server, false, 3);
simplePostAuthenticationDialog(server, 3);
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
imapConnection.open();
@ -589,7 +566,7 @@ public class ImapConnectionTest {
server.output("+");
server.expect(ByteString.encodeUtf8("\000" + USERNAME + "\000" + PASSWORD).base64());
server.output("2 OK [CAPABILITY IDLE]");
simplePostAuthenticationDialog(server, false, 3);
simplePostAuthenticationDialog(server, 3);
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
imapConnection.open();
@ -602,7 +579,7 @@ public class ImapConnectionTest {
@Test
public void open_withNamespaceCapability_shouldIssueNamespaceCommand() throws Exception {
MockImapServer server = new MockImapServer();
simplePreAuthAndLoginDialog(server, "", "NAMESPACE");
simplePreAuthAndLoginDialog(server, "NAMESPACE");
server.expect("3 NAMESPACE");
server.output("* NAMESPACE ((\"\" \"/\")) NIL NIL");
server.output("3 OK command completed");
@ -715,11 +692,11 @@ public class ImapConnectionTest {
public void open_withCompressDeflateCapability_shouldEnableCompression() throws Exception {
settings.setUseCompression(true);
MockImapServer server = new MockImapServer();
simplePreAuthAndLoginDialog(server, "", "COMPRESS=DEFLATE");
simplePreAuthAndLoginDialog(server, "COMPRESS=DEFLATE");
server.expect("3 COMPRESS DEFLATE");
server.output("3 OK");
server.enableCompression();
simplePostAuthenticationDialog(server, false, 4);
simplePostAuthenticationDialog(server, 4);
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
imapConnection.open();
@ -733,10 +710,10 @@ public class ImapConnectionTest {
settings.setAuthType(AuthType.PLAIN);
settings.setUseCompression(true);
MockImapServer server = new MockImapServer();
simplePreAuthAndLoginDialog(server, "", "COMPRESS=DEFLATE");
simplePreAuthAndLoginDialog(server, "COMPRESS=DEFLATE");
server.expect("3 COMPRESS DEFLATE");
server.output("3 NO");
simplePostAuthenticationDialog(server, false, 4);
simplePostAuthenticationDialog(server, 4);
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
imapConnection.open();
@ -750,7 +727,7 @@ public class ImapConnectionTest {
settings.setAuthType(AuthType.PLAIN);
settings.setUseCompression(true);
MockImapServer server = new MockImapServer();
simplePreAuthAndLoginDialog(server, "", "COMPRESS=DEFLATE");
simplePreAuthAndLoginDialog(server, "COMPRESS=DEFLATE");
server.expect("3 COMPRESS DEFLATE");
server.closeConnection();
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
@ -768,9 +745,8 @@ public class ImapConnectionTest {
@Test
public void open_withIoExceptionDuringListCommand_shouldThrow() throws Exception {
settings.setAuthType(AuthType.PLAIN);
settings.setUseCompression(true);
MockImapServer server = new MockImapServer();
simplePreAuthAndLoginDialog(server, "","");
simplePreAuthAndLoginDialog(server, "");
server.expect("3 LIST \"\" \"\"");
server.output("* Now what?");
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
@ -788,9 +764,8 @@ public class ImapConnectionTest {
@Test
public void open_withNegativeResponseToListCommand() throws Exception {
settings.setAuthType(AuthType.PLAIN);
settings.setUseCompression(true);
MockImapServer server = new MockImapServer();
simplePreAuthAndLoginDialog(server, "", "");
simplePreAuthAndLoginDialog(server, "");
server.expect("3 LIST \"\" \"\"");
server.output("3 NO");
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
@ -873,7 +848,7 @@ public class ImapConnectionTest {
@Test
public void isIdleCapable_withIdleCapability() throws Exception {
MockImapServer server = new MockImapServer();
ImapConnection imapConnection = simpleOpenWithCapabilities(server, "", "IDLE");
ImapConnection imapConnection = simpleOpenWithCapabilities(server, "IDLE");
boolean result = imapConnection.isIdleCapable();
@ -886,7 +861,7 @@ public class ImapConnectionTest {
public void sendContinuation() throws Exception {
settings.setAuthType(AuthType.PLAIN);
MockImapServer server = new MockImapServer();
simpleOpenDialog(server, "", "IDLE");
simpleOpenDialog(server, "IDLE");
server.expect("4 IDLE");
server.output("+ idling");
server.expect("DONE");
@ -902,6 +877,7 @@ public class ImapConnectionTest {
server.verifyInteractionCompleted();
}
private ImapConnection createImapConnection(ImapSettings settings, TrustedSocketFactory socketFactory,
ConnectivityManager connectivityManager, OAuth2TokenProvider oAuth2TokenProvider) {
return new ImapConnection(settings, socketFactory, connectivityManager, oAuth2TokenProvider,
@ -916,11 +892,12 @@ public class ImapConnectionTest {
}
private ImapConnection simpleOpen(MockImapServer server) throws Exception {
return simpleOpenWithCapabilities(server, "", "");
return simpleOpenWithCapabilities(server, "");
}
private ImapConnection simpleOpenWithCapabilities(MockImapServer server, String preAuthCapabilities, String postAuthCapabilities) throws Exception {
simpleOpenDialog(server, preAuthCapabilities, postAuthCapabilities);
private ImapConnection simpleOpenWithCapabilities(MockImapServer server, String postAuthCapabilities)
throws Exception {
simpleOpenDialog(server, postAuthCapabilities);
ImapConnection imapConnection = startServerAndCreateImapConnection(server);
imapConnection.open();
@ -939,36 +916,78 @@ public class ImapConnectionTest {
server.output("1 OK CAPABILITY");
}
private void simplePostAuthenticationDialog(MockImapServer server, boolean requestCapabilities) {
simplePostAuthenticationDialog(server, requestCapabilities, 3);
private void postAuthenticationDialogRequestingCapabilities(MockImapServer server) {
postAuthenticationDialogRequestingCapabilities(server, 3);
}
private void simplePostAuthenticationDialog(MockImapServer server, boolean requestCapabilities, int tag) {
if (requestCapabilities) {
private void postAuthenticationDialogRequestingCapabilities(MockImapServer server, int tag) {
requestCapabilities(server, tag);
simplePostAuthenticationDialog(server, tag + 1);
}
private void requestCapabilities(MockImapServer server, int tag) {
server.expect(tag + " CAPABILITY");
server.output("* CAPABILITY IMAP4 IMAP4REV1 ");
server.output(tag+" OK CAPABILITY");
server.expect((tag+1) + " LIST \"\" \"\"");
server.output("* LIST () \"/\" foo/bar");
server.output((tag+1) + " OK");
} else {
server.output(tag + " OK CAPABILITY");
}
private void simplePostAuthenticationDialog(MockImapServer server, int tag) {
server.expect(tag + " LIST \"\" \"\"");
server.output("* LIST () \"/\" foo/bar");
server.output(tag + " OK");
}
private void simpleOpenDialog(MockImapServer server, String postAuthCapabilities) {
simplePreAuthAndLoginDialog(server, postAuthCapabilities);
simplePostAuthenticationDialog(server, 3);
}
private void simpleOpenDialog(MockImapServer server, String preAuthCapabilities, String postAuthCapabilities) {
simplePreAuthAndLoginDialog(server, preAuthCapabilities, postAuthCapabilities);
simplePostAuthenticationDialog(server, false);
}
private void simplePreAuthAndLoginDialog(MockImapServer server, String preAuthCapabilities, String postAuthCapabilities) {
private void simplePreAuthAndLoginDialog(MockImapServer server, String postAuthCapabilities) {
settings.setAuthType(AuthType.PLAIN);
preAuthenticationDialog(server, preAuthCapabilities);
preAuthenticationDialog(server);
server.expect("2 LOGIN \"" + USERNAME + "\" \"" + PASSWORD + "\"");
server.output("2 OK [CAPABILITY " + postAuthCapabilities + "] LOGIN completed");
}
private OAuth2TokenProvider createOAuth2TokenProvider() throws AuthenticationFailedException {
return new OAuth2TokenProvider() {
private int invalidationCount = 0;
@Override
public String getToken(String username, long timeoutMillis) throws AuthenticationFailedException {
assertEquals(USERNAME, username);
assertEquals(OAUTH2_TIMEOUT, timeoutMillis);
switch (invalidationCount) {
case 0: {
return XOAUTH_TOKEN;
}
case 1: {
return XOAUTH_ANOTHER_TOKEN;
}
default: {
throw new AssertionError("Ran out of auth tokens. invalidateToken() called too often?");
}
}
}
@Override
public void invalidateToken(String username) {
assertEquals(USERNAME, username);
invalidationCount++;
}
@Override
public List<String> getAccounts() {
throw new UnsupportedOperationException();
}
@Override
public void authorizeApi(String username, Activity activity, OAuth2TokenProviderAuthCallback callback) {
throw new UnsupportedOperationException();
}
};
}
}