The Tor Browser: services/sync/tests/unit/test_browserid_identity.js@4ab42b5ab56c (annotated)

services/sync/tests/unit/test_browserid_identity.js@4ab42b5ab56c (annotated)

services/sync/tests/unit/test_browserid_identity.js

Wed, 31 Dec 2014 07:53:36 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 07:53:36 +0100
branch: TOR_BUG_3246
changeset 5: 4ab42b5ab56c
permissions: -rw-r--r--

Correct small whitespace inconsistency, lost while renaming variables.

 /* Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 Cu.import("resource://gre/modules/FxAccounts.jsm");
 Cu.import("resource://services-sync/browserid_identity.js");
 Cu.import("resource://services-sync/rest.js");
 Cu.import("resource://services-sync/util.js");
 Cu.import("resource://services-common/utils.js");
 Cu.import("resource://services-crypto/utils.js");
 Cu.import("resource://testing-common/services/sync/utils.js");
 Cu.import("resource://testing-common/services/sync/fxa_utils.js");
 Cu.import("resource://services-common/hawkclient.js");
 Cu.import("resource://gre/modules/FxAccounts.jsm");
 Cu.import("resource://gre/modules/FxAccountsClient.jsm");
 Cu.import("resource://gre/modules/FxAccountsCommon.js");
 Cu.import("resource://services-sync/service.js");
 Cu.import("resource://services-sync/status.js");
 Cu.import("resource://services-sync/constants.js");
 const SECOND_MS = 1000;
 const MINUTE_MS = SECOND_MS * 60;
 const HOUR_MS = MINUTE_MS * 60;
 let identityConfig = makeIdentityConfig();
 let browseridManager = new BrowserIDManager();
 configureFxAccountIdentity(browseridManager, identityConfig);
 /**
  * Mock client clock and skew vs server in FxAccounts signed-in user module and
  * API client.  browserid_identity.js queries these values to construct HAWK
  * headers.  We will use this to test clock skew compensation in these headers
  * below.
  */
 let MockFxAccountsClient = function() {
   FxAccountsClient.apply(this);
 };
 MockFxAccountsClient.prototype = {
   __proto__: FxAccountsClient.prototype
 };
 function MockFxAccounts() {
   let fxa = new FxAccounts({
     _now_is: Date.now(),
     now: function () {
       return this._now_is;
     },
     fxAccountsClient: new MockFxAccountsClient()
   });
   fxa.internal.currentAccountState.getCertificate = function(data, keyPair, mustBeValidUntil) {
     this.cert = {
       validUntil: fxa.internal.now() + CERT_LIFETIME,
       cert: "certificate",
     };
     return Promise.resolve(this.cert.cert);
   };
   return fxa;
 }
 function run_test() {
   initTestLogging("Trace");
   Log.repository.getLogger("Sync.Identity").level = Log.Level.Trace;
   Log.repository.getLogger("Sync.BrowserIDManager").level = Log.Level.Trace;
   run_next_test();
 };
 add_test(function test_initial_state() {
     _("Verify initial state");
     do_check_false(!!browseridManager._token);
     do_check_false(browseridManager.hasValidToken());
     run_next_test();
   }
 );
 add_task(function test_initialializeWithCurrentIdentity() {
     _("Verify start after initializeWithCurrentIdentity");
     browseridManager.initializeWithCurrentIdentity();
     yield browseridManager.whenReadyToAuthenticate.promise;
     do_check_true(!!browseridManager._token);
     do_check_true(browseridManager.hasValidToken());
     do_check_eq(browseridManager.account, identityConfig.fxaccount.user.email);
   }
 );
 add_test(function test_getResourceAuthenticator() {
     _("BrowserIDManager supplies a Resource Authenticator callback which returns a Hawk header.");
     let authenticator = browseridManager.getResourceAuthenticator();
     do_check_true(!!authenticator);
     let req = {uri: CommonUtils.makeURI(
       "https://example.net/somewhere/over/the/rainbow"),
                method: 'GET'};
     let output = authenticator(req, 'GET');
     do_check_true('headers' in output);
     do_check_true('authorization' in output.headers);
     do_check_true(output.headers.authorization.startsWith('Hawk'));
     _("Expected internal state after successful call.");
     do_check_eq(browseridManager._token.uid, identityConfig.fxaccount.token.uid);
     run_next_test();
   }
 );
 add_test(function test_getRESTRequestAuthenticator() {
     _("BrowserIDManager supplies a REST Request Authenticator callback which sets a Hawk header on a request object.");
     let request = new SyncStorageRequest(
       "https://example.net/somewhere/over/the/rainbow");
     let authenticator = browseridManager.getRESTRequestAuthenticator();
     do_check_true(!!authenticator);
     let output = authenticator(request, 'GET');
     do_check_eq(request.uri, output.uri);
     do_check_true(output._headers.authorization.startsWith('Hawk'));
     do_check_true(output._headers.authorization.contains('nonce'));
     do_check_true(browseridManager.hasValidToken());
     run_next_test();
   }
 );
 add_test(function test_resourceAuthenticatorSkew() {
   _("BrowserIDManager Resource Authenticator compensates for clock skew in Hawk header.");
   // Clock is skewed 12 hours into the future
   // We pick a date in the past so we don't risk concealing bugs in code that
   // uses new Date() instead of our given date.
   let now = new Date("Fri Apr 09 2004 00:00:00 GMT-0700").valueOf() + 12 * HOUR_MS;
   let browseridManager = new BrowserIDManager();
   let hawkClient = new HawkClient("https://example.net/v1", "/foo");
   // mock fxa hawk client skew
   hawkClient.now = function() {
     dump("mocked client now: " + now + '\n');
     return now;
   }
   // Imagine there's already been one fxa request and the hawk client has
   // already detected skew vs the fxa auth server.
   let localtimeOffsetMsec = -1 * 12 * HOUR_MS;
   hawkClient._localtimeOffsetMsec = localtimeOffsetMsec;
   let fxaClient = new MockFxAccountsClient();
   fxaClient.hawk = hawkClient;
   // Sanity check
   do_check_eq(hawkClient.now(), now);
   do_check_eq(hawkClient.localtimeOffsetMsec, localtimeOffsetMsec);
   // Properly picked up by the client
   do_check_eq(fxaClient.now(), now);
   do_check_eq(fxaClient.localtimeOffsetMsec, localtimeOffsetMsec);
   let fxa = new MockFxAccounts();
   fxa.internal._now_is = now;
   fxa.internal.fxAccountsClient = fxaClient;
   // Picked up by the signed-in user module
   do_check_eq(fxa.internal.now(), now);
   do_check_eq(fxa.internal.localtimeOffsetMsec, localtimeOffsetMsec);
   do_check_eq(fxa.now(), now);
   do_check_eq(fxa.localtimeOffsetMsec, localtimeOffsetMsec);
   // Mocks within mocks...
   configureFxAccountIdentity(browseridManager, identityConfig);
   // Ensure the new FxAccounts mock has a signed-in user.
   fxa.internal.currentAccountState.signedInUser = browseridManager._fxaService.internal.currentAccountState.signedInUser;
   browseridManager._fxaService = fxa;
   do_check_eq(browseridManager._fxaService.internal.now(), now);
   do_check_eq(browseridManager._fxaService.internal.localtimeOffsetMsec,
       localtimeOffsetMsec);
   do_check_eq(browseridManager._fxaService.now(), now);
   do_check_eq(browseridManager._fxaService.localtimeOffsetMsec,
       localtimeOffsetMsec);
   let request = new SyncStorageRequest("https://example.net/i/like/pie/");
   let authenticator = browseridManager.getResourceAuthenticator();
   let output = authenticator(request, 'GET');
   dump("output" + JSON.stringify(output));
   let authHeader = output.headers.authorization;
   do_check_true(authHeader.startsWith('Hawk'));
   // Skew correction is applied in the header and we're within the two-minute
   // window.
   do_check_eq(getTimestamp(authHeader), now - 12 * HOUR_MS);
   do_check_true(
       (getTimestampDelta(authHeader, now) - 12 * HOUR_MS) < 2 * MINUTE_MS);
   run_next_test();
 });
 add_test(function test_RESTResourceAuthenticatorSkew() {
   _("BrowserIDManager REST Resource Authenticator compensates for clock skew in Hawk header.");
   // Clock is skewed 12 hours into the future from our arbitary date
   let now = new Date("Fri Apr 09 2004 00:00:00 GMT-0700").valueOf() + 12 * HOUR_MS;
   let browseridManager = new BrowserIDManager();
   let hawkClient = new HawkClient("https://example.net/v1", "/foo");
   // mock fxa hawk client skew
   hawkClient.now = function() {
     return now;
   }
   // Imagine there's already been one fxa request and the hawk client has
   // already detected skew vs the fxa auth server.
   hawkClient._localtimeOffsetMsec = -1 * 12 * HOUR_MS;
   let fxaClient = new MockFxAccountsClient();
   fxaClient.hawk = hawkClient;
   let fxa = new MockFxAccounts();
   fxa.internal._now_is = now;
   fxa.internal.fxAccountsClient = fxaClient;
   configureFxAccountIdentity(browseridManager, identityConfig);
   // Ensure the new FxAccounts mock has a signed-in user.
   fxa.internal.currentAccountState.signedInUser = browseridManager._fxaService.internal.currentAccountState.signedInUser;
   browseridManager._fxaService = fxa;
   do_check_eq(browseridManager._fxaService.internal.now(), now);
   let request = new SyncStorageRequest("https://example.net/i/like/pie/");
   let authenticator = browseridManager.getResourceAuthenticator();
   let output = authenticator(request, 'GET');
   dump("output" + JSON.stringify(output));
   let authHeader = output.headers.authorization;
   do_check_true(authHeader.startsWith('Hawk'));
   // Skew correction is applied in the header and we're within the two-minute
   // window.
   do_check_eq(getTimestamp(authHeader), now - 12 * HOUR_MS);
   do_check_true(
       (getTimestampDelta(authHeader, now) - 12 * HOUR_MS) < 2 * MINUTE_MS);
   run_next_test();
 });
 add_task(function test_ensureLoggedIn() {
   configureFxAccountIdentity(browseridManager);
   yield browseridManager.initializeWithCurrentIdentity();
   Assert.equal(Status.login, LOGIN_SUCCEEDED, "original initialize worked");
   yield browseridManager.ensureLoggedIn();
   Assert.equal(Status.login, LOGIN_SUCCEEDED, "original ensureLoggedIn worked");
   Assert.ok(browseridManager._shouldHaveSyncKeyBundle,
             "_shouldHaveSyncKeyBundle should always be true after ensureLogin completes.");
   // arrange for no logged in user.
   let fxa = browseridManager._fxaService
   let signedInUser = fxa.internal.currentAccountState.signedInUser;
   fxa.internal.currentAccountState.signedInUser = null;
   browseridManager.initializeWithCurrentIdentity();
   Assert.ok(!browseridManager._shouldHaveSyncKeyBundle,
             "_shouldHaveSyncKeyBundle should be false so we know we are testing what we think we are.");
   Status.login = LOGIN_FAILED_NO_USERNAME;
   yield Assert_rejects(browseridManager.ensureLoggedIn(), "expecting rejection due to no user");
   Assert.ok(browseridManager._shouldHaveSyncKeyBundle,
             "_shouldHaveSyncKeyBundle should always be true after ensureLogin completes.");
   fxa.internal.currentAccountState.signedInUser = signedInUser;
   Status.login = LOGIN_FAILED_LOGIN_REJECTED;
   yield Assert_rejects(browseridManager.ensureLoggedIn(),
                        "LOGIN_FAILED_LOGIN_REJECTED should have caused immediate rejection");
   Assert.equal(Status.login, LOGIN_FAILED_LOGIN_REJECTED,
                "status should remain LOGIN_FAILED_LOGIN_REJECTED");
   Status.login = LOGIN_FAILED_NETWORK_ERROR;
   yield browseridManager.ensureLoggedIn();
   Assert.equal(Status.login, LOGIN_SUCCEEDED, "final ensureLoggedIn worked");
 });
 add_test(function test_tokenExpiration() {
     _("BrowserIDManager notices token expiration:");
     let bimExp = new BrowserIDManager();
     configureFxAccountIdentity(bimExp, identityConfig);
     let authenticator = bimExp.getResourceAuthenticator();
     do_check_true(!!authenticator);
     let req = {uri: CommonUtils.makeURI(
       "https://example.net/somewhere/over/the/rainbow"),
                method: 'GET'};
     authenticator(req, 'GET');
     // Mock the clock.
     _("Forcing the token to expire ...");
     Object.defineProperty(bimExp, "_now", {
       value: function customNow() {
         return (Date.now() + 3000001);
       },
       writable: true,
     });
     do_check_true(bimExp._token.expiration < bimExp._now());
     _("... means BrowserIDManager knows to re-fetch it on the next call.");
     do_check_false(bimExp.hasValidToken());
     run_next_test();
   }
 );
 add_test(function test_sha256() {
   // Test vectors from http://www.bichlmeier.info/sha256test.html
   let vectors = [
     ["",
      "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"],
     ["abc",
      "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad"],
     ["message digest",
      "f7846f55cf23e14eebeab5b4e1550cad5b509e3348fbc4efa3a1413d393cb650"],
     ["secure hash algorithm",
      "f30ceb2bb2829e79e4ca9753d35a8ecc00262d164cc077080295381cbd643f0d"],
     ["SHA256 is considered to be safe",
      "6819d915c73f4d1e77e4e1b52d1fa0f9cf9beaead3939f15874bd988e2a23630"],
     ["abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
      "248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1"],
     ["For this sample, this 63-byte string will be used as input data",
      "f08a78cbbaee082b052ae0708f32fa1e50c5c421aa772ba5dbb406a2ea6be342"],
     ["This is exactly 64 bytes long, not counting the terminating byte",
      "ab64eff7e88e2e46165e29f2bce41826bd4c7b3552f6b382a9e7d3af47c245f8"]
   ];
   let bidUser = new BrowserIDManager();
   for (let [input,output] of vectors) {
     do_check_eq(CommonUtils.bytesAsHex(bidUser._sha256(input)), output);
   }
   run_next_test();
 });
 add_test(function test_computeXClientStateHeader() {
   let kBhex = "fd5c747806c07ce0b9d69dcfea144663e630b65ec4963596a22f24910d7dd15d";
   let kB = CommonUtils.hexToBytes(kBhex);
   let bidUser = new BrowserIDManager();
   let header = bidUser._computeXClientState(kB);
   do_check_eq(header, "6ae94683571c7a7c54dab4700aa3995f");
   run_next_test();
 });
 add_task(function test_getTokenErrors() {
   _("BrowserIDManager correctly handles various failures to get a token.");
   _("Arrange for a 401 - Sync should reflect an auth error.");
   initializeIdentityWithTokenServerResponse({
     status: 401,
     headers: {"content-type": "application/json"},
     body: JSON.stringify({}),
   });
   let browseridManager = Service.identity;
   yield browseridManager.initializeWithCurrentIdentity();
   yield Assert_rejects(browseridManager.whenReadyToAuthenticate.promise,
                        "should reject due to 401");
   Assert.equal(Status.login, LOGIN_FAILED_LOGIN_REJECTED, "login was rejected");
   // XXX - other interesting responses to return?
   // And for good measure, some totally "unexpected" errors - we generally
   // assume these problems are going to magically go away at some point.
   _("Arrange for an empty body with a 200 response - should reflect a network error.");
   initializeIdentityWithTokenServerResponse({
     status: 200,
     headers: [],
     body: "",
   });
   browseridManager = Service.identity;
   yield browseridManager.initializeWithCurrentIdentity();
   yield Assert_rejects(browseridManager.whenReadyToAuthenticate.promise,
                        "should reject due to non-JSON response");
   Assert.equal(Status.login, LOGIN_FAILED_NETWORK_ERROR, "login state is LOGIN_FAILED_NETWORK_ERROR");
 });
 add_task(function test_getTokenErrorWithRetry() {
   _("tokenserver sends an observer notification on various backoff headers.");
   // Set Sync's backoffInterval to zero - after we simulated the backoff header
   // it should reflect the value we sent.
   Status.backoffInterval = 0;
   _("Arrange for a 503 with a Retry-After header.");
   initializeIdentityWithTokenServerResponse({
     status: 503,
     headers: {"content-type": "application/json",
               "retry-after": "100"},
     body: JSON.stringify({}),
   });
   let browseridManager = Service.identity;
   yield browseridManager.initializeWithCurrentIdentity();
   yield Assert_rejects(browseridManager.whenReadyToAuthenticate.promise,
                        "should reject due to 503");
   // The observer should have fired - check it got the value in the response.
   Assert.equal(Status.login, LOGIN_FAILED_NETWORK_ERROR, "login was rejected");
   // Sync will have the value in ms with some slop - so check it is at least that.
   Assert.ok(Status.backoffInterval >= 100000);
   _("Arrange for a 200 with an X-Backoff header.");
   Status.backoffInterval = 0;
   initializeIdentityWithTokenServerResponse({
     status: 503,
     headers: {"content-type": "application/json",
               "x-backoff": "200"},
     body: JSON.stringify({}),
   });
   browseridManager = Service.identity;
   yield browseridManager.initializeWithCurrentIdentity();
   yield Assert_rejects(browseridManager.whenReadyToAuthenticate.promise,
                        "should reject due to no token in response");
   // The observer should have fired - check it got the value in the response.
   Assert.ok(Status.backoffInterval >= 200000);
 });
 add_task(function test_getKeysErrorWithBackoff() {
   _("Auth server (via hawk) sends an observer notification on backoff headers.");
   // Set Sync's backoffInterval to zero - after we simulated the backoff header
   // it should reflect the value we sent.
   Status.backoffInterval = 0;
   _("Arrange for a 503 with a X-Backoff header.");
   let config = makeIdentityConfig();
   // We want no kA or kB so we attempt to fetch them.
   delete config.fxaccount.user.kA;
   delete config.fxaccount.user.kB;
   config.fxaccount.user.keyFetchToken = "keyfetchtoken";
   yield initializeIdentityWithHAWKResponseFactory(config, function(method, data, uri) {
     Assert.equal(method, "get");
     Assert.equal(uri, "http://mockedserver:9999/account/keys")
     return {
       status: 503,
       headers: {"content-type": "application/json",
                 "x-backoff": "100"},
       body: "{}",
     }
   });
   let browseridManager = Service.identity;
   yield Assert_rejects(browseridManager.whenReadyToAuthenticate.promise,
                        "should reject due to 503");
   // The observer should have fired - check it got the value in the response.
   Assert.equal(Status.login, LOGIN_FAILED_NETWORK_ERROR, "login was rejected");
   // Sync will have the value in ms with some slop - so check it is at least that.
   Assert.ok(Status.backoffInterval >= 100000);
 });
 add_task(function test_getKeysErrorWithRetry() {
   _("Auth server (via hawk) sends an observer notification on retry headers.");
   // Set Sync's backoffInterval to zero - after we simulated the backoff header
   // it should reflect the value we sent.
   Status.backoffInterval = 0;
   _("Arrange for a 503 with a Retry-After header.");
   let config = makeIdentityConfig();
   // We want no kA or kB so we attempt to fetch them.
   delete config.fxaccount.user.kA;
   delete config.fxaccount.user.kB;
   config.fxaccount.user.keyFetchToken = "keyfetchtoken";
   yield initializeIdentityWithHAWKResponseFactory(config, function(method, data, uri) {
     Assert.equal(method, "get");
     Assert.equal(uri, "http://mockedserver:9999/account/keys")
     return {
       status: 503,
       headers: {"content-type": "application/json",
                 "retry-after": "100"},
       body: "{}",
     }
   });
   let browseridManager = Service.identity;
   yield Assert_rejects(browseridManager.whenReadyToAuthenticate.promise,
                        "should reject due to 503");
   // The observer should have fired - check it got the value in the response.
   Assert.equal(Status.login, LOGIN_FAILED_NETWORK_ERROR, "login was rejected");
   // Sync will have the value in ms with some slop - so check it is at least that.
   Assert.ok(Status.backoffInterval >= 100000);
 });
 add_task(function test_getHAWKErrors() {
   _("BrowserIDManager correctly handles various HAWK failures.");
   _("Arrange for a 401 - Sync should reflect an auth error.");
   let config = makeIdentityConfig();
   yield initializeIdentityWithHAWKResponseFactory(config, function(method, data, uri) {
     Assert.equal(method, "post");
     Assert.equal(uri, "http://mockedserver:9999/certificate/sign")
     return {
       status: 401,
       headers: {"content-type": "application/json"},
       body: JSON.stringify({}),
     }
   });
   Assert.equal(Status.login, LOGIN_FAILED_LOGIN_REJECTED, "login was rejected");
   // XXX - other interesting responses to return?
   // And for good measure, some totally "unexpected" errors - we generally
   // assume these problems are going to magically go away at some point.
   _("Arrange for an empty body with a 200 response - should reflect a network error.");
   yield initializeIdentityWithHAWKResponseFactory(config, function(method, data, uri) {
     Assert.equal(method, "post");
     Assert.equal(uri, "http://mockedserver:9999/certificate/sign")
     return {
       status: 200,
       headers: [],
       body: "",
     }
   });
   Assert.equal(Status.login, LOGIN_FAILED_NETWORK_ERROR, "login state is LOGIN_FAILED_NETWORK_ERROR");
 });
 add_task(function test_getGetKeysFailing401() {
   _("BrowserIDManager correctly handles 401 responses fetching keys.");
   _("Arrange for a 401 - Sync should reflect an auth error.");
   let config = makeIdentityConfig();
   // We want no kA or kB so we attempt to fetch them.
   delete config.fxaccount.user.kA;
   delete config.fxaccount.user.kB;
   config.fxaccount.user.keyFetchToken = "keyfetchtoken";
   yield initializeIdentityWithHAWKResponseFactory(config, function(method, data, uri) {
     Assert.equal(method, "get");
     Assert.equal(uri, "http://mockedserver:9999/account/keys")
     return {
       status: 401,
       headers: {"content-type": "application/json"},
       body: "{}",
     }
   });
   Assert.equal(Status.login, LOGIN_FAILED_LOGIN_REJECTED, "login was rejected");
 });
 add_task(function test_getGetKeysFailing503() {
   _("BrowserIDManager correctly handles 5XX responses fetching keys.");
   _("Arrange for a 503 - Sync should reflect a network error.");
   let config = makeIdentityConfig();
   // We want no kA or kB so we attempt to fetch them.
   delete config.fxaccount.user.kA;
   delete config.fxaccount.user.kB;
   config.fxaccount.user.keyFetchToken = "keyfetchtoken";
   yield initializeIdentityWithHAWKResponseFactory(config, function(method, data, uri) {
     Assert.equal(method, "get");
     Assert.equal(uri, "http://mockedserver:9999/account/keys")
     return {
       status: 503,
       headers: {"content-type": "application/json"},
       body: "{}",
     }
   });
   Assert.equal(Status.login, LOGIN_FAILED_NETWORK_ERROR, "state reflects network error");
 });
 add_task(function test_getKeysMissing() {
   _("BrowserIDManager correctly handles getKeys succeeding but not returning keys.");
   let browseridManager = new BrowserIDManager();
   let identityConfig = makeIdentityConfig();
   // our mock identity config already has kA and kB - remove them or we never
   // try and fetch them.
   delete identityConfig.fxaccount.user.kA;
   delete identityConfig.fxaccount.user.kB;
   identityConfig.fxaccount.user.keyFetchToken = 'keyFetchToken';
   configureFxAccountIdentity(browseridManager, identityConfig);
   // Mock a fxAccounts object that returns no keys
   let fxa = new FxAccounts({
     fetchAndUnwrapKeys: function () {
       return Promise.resolve({});
     },
     fxAccountsClient: new MockFxAccountsClient()
   });
   // Add a mock to the currentAccountState object.
   fxa.internal.currentAccountState.getCertificate = function(data, keyPair, mustBeValidUntil) {
     this.cert = {
       validUntil: fxa.internal.now() + CERT_LIFETIME,
       cert: "certificate",
     };
     return Promise.resolve(this.cert.cert);
   };
   // Ensure the new FxAccounts mock has a signed-in user.
   fxa.internal.currentAccountState.signedInUser = browseridManager._fxaService.internal.currentAccountState.signedInUser;
   browseridManager._fxaService = fxa;
   yield browseridManager.initializeWithCurrentIdentity();
   let ex;
   try {
     yield browseridManager.whenReadyToAuthenticate.promise;
   } catch (e) {
     ex = e;
   }
   Assert.ok(ex.message.indexOf("missing kA or kB") >= 0);
 });
 // End of tests
 // Utility functions follow
 // Create a new browserid_identity object and initialize it with a
 // hawk mock that simulates HTTP responses.
 // The callback function will be called each time the mocked hawk server wants
 // to make a request.  The result of the callback should be the mock response
 // object that will be returned to hawk.
 // A token server mock will be used that doesn't hit a server, so we move
 // directly to a hawk request.
 function* initializeIdentityWithHAWKResponseFactory(config, cbGetResponse) {
   // A mock request object.
   function MockRESTRequest(uri, credentials, extra) {
     this._uri = uri;
     this._credentials = credentials;
     this._extra = extra;
   };
   MockRESTRequest.prototype = {
     setHeader: function() {},
     post: function(data, callback) {
       this.response = cbGetResponse("post", data, this._uri, this._credentials, this._extra);
       callback.call(this);
     },
     get: function(callback) {
       this.response = cbGetResponse("get", null, this._uri, this._credentials, this._extra);
       callback.call(this);
     }
   }
   // The hawk client.
   function MockedHawkClient() {}
   MockedHawkClient.prototype = new HawkClient("http://mockedserver:9999");
   MockedHawkClient.prototype.constructor = MockedHawkClient;
   MockedHawkClient.prototype.newHAWKAuthenticatedRESTRequest = function(uri, credentials, extra) {
     return new MockRESTRequest(uri, credentials, extra);
   }
   // Arrange for the same observerPrefix as FxAccountsClient uses
   MockedHawkClient.prototype.observerPrefix = "FxA:hawk";
   // tie it all together - configureFxAccountIdentity isn't useful here :(
   let fxaClient = new MockFxAccountsClient();
   fxaClient.hawk = new MockedHawkClient();
   let internal = {
     fxAccountsClient: fxaClient,
   }
   let fxa = new FxAccounts(internal);
   fxa.internal.currentAccountState.signedInUser = {
       accountData: config.fxaccount.user,
   };
   browseridManager._fxaService = fxa;
   browseridManager._signedInUser = null;
   yield browseridManager.initializeWithCurrentIdentity();
   yield Assert_rejects(browseridManager.whenReadyToAuthenticate.promise,
                        "expecting rejection due to hawk error");
 }
 function getTimestamp(hawkAuthHeader) {
   return parseInt(/ts="(\d+)"/.exec(hawkAuthHeader)[1], 10) * SECOND_MS;
 }
 function getTimestampDelta(hawkAuthHeader, now=Date.now()) {
   return Math.abs(getTimestamp(hawkAuthHeader) - now);
 }