/* Any copyright is dedicated to the Public Domain.
   http://creativecommons.org/publicdomain/zero/1.0/ */

ChromeUtils.import("resource://services-sync/engines/clients.js");
ChromeUtils.import("resource://services-sync/constants.js");
ChromeUtils.import("resource://services-sync/engines.js");
ChromeUtils.import("resource://services-sync/keys.js");
ChromeUtils.import("resource://services-sync/policies.js");
ChromeUtils.import("resource://services-sync/service.js");
ChromeUtils.import("resource://services-sync/status.js");
ChromeUtils.import("resource://services-sync/util.js");
ChromeUtils.import("resource://gre/modules/FileUtils.jsm");
ChromeUtils.import("resource://gre/modules/PromiseUtils.jsm");

var fakeServer = new SyncServer();
fakeServer.start();

registerCleanupFunction(function() {
  return promiseStopServer(fakeServer).finally(() => {
    Svc.Prefs.resetBranch("");
  });
});

var fakeServerUrl = "http://localhost:" + fakeServer.port;

const logsdir = FileUtils.getDir("ProfD", ["weave", "logs"], true);

const PROLONGED_ERROR_DURATION =
  (Svc.Prefs.get("errorhandler.networkFailureReportTimeout") * 2) * 1000;

const NON_PROLONGED_ERROR_DURATION =
  (Svc.Prefs.get("errorhandler.networkFailureReportTimeout") / 2) * 1000;

function setLastSync(lastSyncValue) {
  Svc.Prefs.set("lastSync", (new Date(Date.now() - lastSyncValue)).toString());
}

// This relies on Service/ErrorHandler being a singleton. Fixing this will take
// a lot of work.
let errorHandler = Service.errorHandler;
let engine;

add_task(async function setup() {
  await Service.engineManager.clear();
  await Service.engineManager.register(EHTestsCommon.CatapultEngine);
  engine = Service.engineManager.get("catapult");
});

async function clean() {
  let promiseLogReset = promiseOneObserver("weave:service:reset-file-log");
  await Service.startOver();
  await promiseLogReset;
  Status.resetSync();
  Status.resetBackoff();
  errorHandler.didReportProlongedError = false;
  // Move log levels back to trace (startOver will have reversed this), sicne
  syncTestLogging();
}

add_task(async function test_401_logout() {
  enableValidationPrefs();

  let server = await EHTestsCommon.sync_httpd_setup();
  await EHTestsCommon.setUp(server);

  // By calling sync, we ensure we're logged in.
  await sync_and_validate_telem();
  Assert.equal(Status.sync, SYNC_SUCCEEDED);
  Assert.ok(Service.isLoggedIn);

  let promiseErrors = new Promise(res => {
    Svc.Obs.add("weave:service:sync:error", onSyncError);
    function onSyncError() {
      _("Got weave:service:sync:error in first sync.");
      Svc.Obs.remove("weave:service:sync:error", onSyncError);

      // Wait for the automatic next sync.
      Svc.Obs.add("weave:service:login:error", onLoginError);
      function onLoginError() {
        _("Got weave:service:login:error in second sync.");
        Svc.Obs.remove("weave:service:login:error", onLoginError);
        res();
      }
    }
  });

  // Make sync fail due to login rejected.
  await configureIdentity({username: "janedoe"}, server);
  Service._updateCachedURLs();

  _("Starting first sync.");
  let ping = await sync_and_validate_telem(true);
  deepEqual(ping.failureReason, { name: "httperror", code: 401 });
  _("First sync done.");

  await promiseErrors;
  Assert.equal(Status.login, LOGIN_FAILED_NETWORK_ERROR);
  Assert.ok(!Service.isLoggedIn);

  // Clean up.
  await Service.startOver();
  await promiseStopServer(server);
});

add_task(async function test_credentials_changed_logout() {
  enableValidationPrefs();

  let server = await EHTestsCommon.sync_httpd_setup();
  await EHTestsCommon.setUp(server);

  // By calling sync, we ensure we're logged in.
  await sync_and_validate_telem();
  Assert.equal(Status.sync, SYNC_SUCCEEDED);
  Assert.ok(Service.isLoggedIn);

  await EHTestsCommon.generateCredentialsChangedFailure();

  let ping = await sync_and_validate_telem(true);
  equal(ping.status.sync, CREDENTIALS_CHANGED);
  deepEqual(ping.failureReason, {
    name: "unexpectederror",
    error: "Error: Aborting sync, remote setup failed"
  });

  Assert.equal(Status.sync, CREDENTIALS_CHANGED);
  Assert.ok(!Service.isLoggedIn);

  // Clean up.
  await Service.startOver();
  await promiseStopServer(server);
});

add_task(function test_no_lastSync_pref() {
  syncTestLogging();
  // Test reported error.
  Status.resetSync();
  errorHandler.dontIgnoreErrors = true;
  Status.sync = CREDENTIALS_CHANGED;
  Assert.ok(errorHandler.shouldReportError());

  // Test unreported error.
  Status.resetSync();
  errorHandler.dontIgnoreErrors = true;
  Status.login = LOGIN_FAILED_NETWORK_ERROR;
  Assert.ok(errorHandler.shouldReportError());

});

add_task(function test_shouldReportError() {
  Status.login = MASTER_PASSWORD_LOCKED;
  Assert.ok(!errorHandler.shouldReportError());

  // Give ourselves a clusterURL so that the temporary 401 no-error situation
  // doesn't come into play.
  Service.clusterURL = fakeServerUrl;

  // Test dontIgnoreErrors, non-network, non-prolonged, sync error reported
  Status.resetSync();
  setLastSync(NON_PROLONGED_ERROR_DURATION);
  errorHandler.dontIgnoreErrors = true;
  Status.sync = CREDENTIALS_CHANGED;
  Assert.ok(errorHandler.shouldReportError());

  // Test dontIgnoreErrors, non-network, prolonged, sync error reported
  Status.resetSync();
  setLastSync(PROLONGED_ERROR_DURATION);
  errorHandler.dontIgnoreErrors = true;
  Status.sync = CREDENTIALS_CHANGED;
  Assert.ok(errorHandler.shouldReportError());

  // Test dontIgnoreErrors, network, non-prolonged, login error reported
  Status.resetSync();
  setLastSync(NON_PROLONGED_ERROR_DURATION);
  errorHandler.dontIgnoreErrors = true;
  Status.login = LOGIN_FAILED_NETWORK_ERROR;
  Assert.ok(errorHandler.shouldReportError());

  // Test dontIgnoreErrors, network, non-prolonged, sync error reported
  Status.resetSync();
  setLastSync(NON_PROLONGED_ERROR_DURATION);
  errorHandler.dontIgnoreErrors = true;
  Status.sync = LOGIN_FAILED_NETWORK_ERROR;
  Assert.ok(errorHandler.shouldReportError());

  // Test dontIgnoreErrors, network, prolonged, login error reported
  Status.resetSync();
  setLastSync(PROLONGED_ERROR_DURATION);
  errorHandler.dontIgnoreErrors = true;
  Status.login = LOGIN_FAILED_NETWORK_ERROR;
  Assert.ok(errorHandler.shouldReportError());

  // Test dontIgnoreErrors, network, prolonged, sync error reported
  Status.resetSync();
  setLastSync(PROLONGED_ERROR_DURATION);
  errorHandler.dontIgnoreErrors = true;
  Status.sync = LOGIN_FAILED_NETWORK_ERROR;
  Assert.ok(errorHandler.shouldReportError());

  // Test non-network, prolonged, sync error reported
  Status.resetSync();
  setLastSync(PROLONGED_ERROR_DURATION);
  errorHandler.dontIgnoreErrors = false;
  errorHandler.didReportProlongedError = false;
  Status.sync = CREDENTIALS_CHANGED;
  Assert.ok(errorHandler.shouldReportError());
  Assert.ok(errorHandler.didReportProlongedError);
  errorHandler.didReportProlongedError = false;

  // Test network, prolonged, login error reported
  Status.resetSync();
  setLastSync(PROLONGED_ERROR_DURATION);
  errorHandler.dontIgnoreErrors = false;
  Status.login = LOGIN_FAILED_NETWORK_ERROR;
  Assert.ok(errorHandler.shouldReportError());
  Assert.ok(errorHandler.didReportProlongedError);
  errorHandler.didReportProlongedError = false;

  // Test network, prolonged, sync error reported
  Status.resetSync();
  setLastSync(PROLONGED_ERROR_DURATION);
  errorHandler.dontIgnoreErrors = false;
  Status.sync = LOGIN_FAILED_NETWORK_ERROR;
  Assert.ok(errorHandler.shouldReportError());
  Assert.ok(errorHandler.didReportProlongedError);
  errorHandler.didReportProlongedError = false;

  // Test non-network, non-prolonged, sync error reported
  Status.resetSync();
  setLastSync(NON_PROLONGED_ERROR_DURATION);
  errorHandler.dontIgnoreErrors = false;
  Status.sync = CREDENTIALS_CHANGED;
  Assert.ok(errorHandler.shouldReportError());
  Assert.ok(!errorHandler.didReportProlongedError);

  // Test network, non-prolonged, login error reported
  Status.resetSync();
  setLastSync(NON_PROLONGED_ERROR_DURATION);
  errorHandler.dontIgnoreErrors = false;
  Status.login = LOGIN_FAILED_NETWORK_ERROR;
  Assert.ok(!errorHandler.shouldReportError());
  Assert.ok(!errorHandler.didReportProlongedError);

  // Test network, non-prolonged, sync error reported
  Status.resetSync();
  setLastSync(NON_PROLONGED_ERROR_DURATION);
  errorHandler.dontIgnoreErrors = false;
  Status.sync = LOGIN_FAILED_NETWORK_ERROR;
  Assert.ok(!errorHandler.shouldReportError());
  Assert.ok(!errorHandler.didReportProlongedError);

  // Test server maintenance, sync errors are not reported
  Status.resetSync();
  setLastSync(NON_PROLONGED_ERROR_DURATION);
  errorHandler.dontIgnoreErrors = false;
  Status.sync = SERVER_MAINTENANCE;
  Assert.ok(!errorHandler.shouldReportError());
  Assert.ok(!errorHandler.didReportProlongedError);

  // Test server maintenance, login errors are not reported
  Status.resetSync();
  setLastSync(NON_PROLONGED_ERROR_DURATION);
  errorHandler.dontIgnoreErrors = false;
  Status.login = SERVER_MAINTENANCE;
  Assert.ok(!errorHandler.shouldReportError());
  Assert.ok(!errorHandler.didReportProlongedError);

  // Test prolonged, server maintenance, sync errors are reported
  Status.resetSync();
  setLastSync(PROLONGED_ERROR_DURATION);
  errorHandler.dontIgnoreErrors = false;
  Status.sync = SERVER_MAINTENANCE;
  Assert.ok(errorHandler.shouldReportError());
  Assert.ok(errorHandler.didReportProlongedError);
  errorHandler.didReportProlongedError = false;

  // Test prolonged, server maintenance, login errors are reported
  Status.resetSync();
  setLastSync(PROLONGED_ERROR_DURATION);
  errorHandler.dontIgnoreErrors = false;
  Status.login = SERVER_MAINTENANCE;
  Assert.ok(errorHandler.shouldReportError());
  Assert.ok(errorHandler.didReportProlongedError);
  errorHandler.didReportProlongedError = false;

  // Test dontIgnoreErrors, server maintenance, sync errors are reported
  Status.resetSync();
  setLastSync(NON_PROLONGED_ERROR_DURATION);
  errorHandler.dontIgnoreErrors = true;
  Status.sync = SERVER_MAINTENANCE;
  Assert.ok(errorHandler.shouldReportError());
  // dontIgnoreErrors means we don't set didReportProlongedError
  Assert.ok(!errorHandler.didReportProlongedError);

  // Test dontIgnoreErrors, server maintenance, login errors are reported
  Status.resetSync();
  setLastSync(NON_PROLONGED_ERROR_DURATION);
  errorHandler.dontIgnoreErrors = true;
  Status.login = SERVER_MAINTENANCE;
  Assert.ok(errorHandler.shouldReportError());
  Assert.ok(!errorHandler.didReportProlongedError);

  // Test dontIgnoreErrors, prolonged, server maintenance,
  // sync errors are reported
  Status.resetSync();
  setLastSync(PROLONGED_ERROR_DURATION);
  errorHandler.dontIgnoreErrors = true;
  Status.sync = SERVER_MAINTENANCE;
  Assert.ok(errorHandler.shouldReportError());
  Assert.ok(!errorHandler.didReportProlongedError);

  // Test dontIgnoreErrors, prolonged, server maintenance,
  // login errors are reported
  Status.resetSync();
  setLastSync(PROLONGED_ERROR_DURATION);
  errorHandler.dontIgnoreErrors = true;
  Status.login = SERVER_MAINTENANCE;
  Assert.ok(errorHandler.shouldReportError());
  Assert.ok(!errorHandler.didReportProlongedError);
});

add_task(async function test_shouldReportError_master_password() {
  _("Test error ignored due to locked master password");
  let server = await EHTestsCommon.sync_httpd_setup();
  await EHTestsCommon.setUp(server);

  // Monkey patch Service.verifyLogin to imitate
  // master password being locked.
  Service._verifyLogin = Service.verifyLogin;
  Service.verifyLogin = async function() {
    Status.login = MASTER_PASSWORD_LOCKED;
    return false;
  };

  setLastSync(NON_PROLONGED_ERROR_DURATION);
  await Service.sync();
  Assert.ok(!errorHandler.shouldReportError());

  // Clean up.
  Service.verifyLogin = Service._verifyLogin;
  await clean();
  await promiseStopServer(server);
});

// Test that even if we don't have a cluster URL, a login failure due to
// authentication errors is always reported.
add_task(function test_shouldReportLoginFailureWithNoCluster() {
  // Ensure no clusterURL - any error not specific to login should not be reported.
  Service.clusterURL = "";

  // Test explicit "login rejected" state.
  Status.resetSync();
  // If we have a LOGIN_REJECTED state, we always report the error.
  Status.login = LOGIN_FAILED_LOGIN_REJECTED;
  Assert.ok(errorHandler.shouldReportError());
  // But any other status with a missing clusterURL is treated as a mid-sync
  // 401 (ie, should be treated as a node reassignment)
  Status.login = LOGIN_SUCCEEDED;
  Assert.ok(!errorHandler.shouldReportError());
});

add_task(async function test_login_syncAndReportErrors_non_network_error() {
  enableValidationPrefs();

  // Test non-network errors are reported
  // when calling syncAndReportErrors
  let server = await EHTestsCommon.sync_httpd_setup();
  await EHTestsCommon.setUp(server);
  Service.identity.resetSyncKeyBundle();

  let promiseObserved = promiseOneObserver("weave:ui:login:error");

  setLastSync(NON_PROLONGED_ERROR_DURATION);
  errorHandler.syncAndReportErrors();
  await promiseObserved;
  Assert.equal(Status.login, LOGIN_FAILED_NO_PASSPHRASE);

  await clean();
  await promiseStopServer(server);
});

add_task(async function test_sync_syncAndReportErrors_non_network_error() {
  enableValidationPrefs();

  // Test non-network errors are reported
  // when calling syncAndReportErrors
  let server = await EHTestsCommon.sync_httpd_setup();
  await EHTestsCommon.setUp(server);

  // By calling sync, we ensure we're logged in.
  await Service.sync();
  Assert.equal(Status.sync, SYNC_SUCCEEDED);
  Assert.ok(Service.isLoggedIn);

  await EHTestsCommon.generateCredentialsChangedFailure();

  let promiseObserved = promiseOneObserver("weave:ui:sync:error");

  setLastSync(NON_PROLONGED_ERROR_DURATION);
  let ping = await wait_for_ping(() => errorHandler.syncAndReportErrors(), true);
  equal(ping.status.sync, CREDENTIALS_CHANGED);
  deepEqual(ping.failureReason, {
    name: "unexpectederror",
    error: "Error: Aborting sync, remote setup failed"
  });
  await promiseObserved;

  Assert.equal(Status.sync, CREDENTIALS_CHANGED);
  // If we clean this tick, telemetry won't get the right error
  await Async.promiseYield();
  await clean();
  await promiseStopServer(server);
});

add_task(async function test_login_syncAndReportErrors_prolonged_non_network_error() {
  enableValidationPrefs();

  // Test prolonged, non-network errors are
  // reported when calling syncAndReportErrors.
  let server = await EHTestsCommon.sync_httpd_setup();
  await EHTestsCommon.setUp(server);
  Service.identity.resetSyncKeyBundle();

  let promiseObserved = promiseOneObserver("weave:ui:login:error");

  setLastSync(PROLONGED_ERROR_DURATION);
  errorHandler.syncAndReportErrors();
  await promiseObserved;
  Assert.equal(Status.login, LOGIN_FAILED_NO_PASSPHRASE);

  await clean();
  await promiseStopServer(server);
});

add_task(async function test_sync_syncAndReportErrors_prolonged_non_network_error() {
  enableValidationPrefs();

  // Test prolonged, non-network errors are
  // reported when calling syncAndReportErrors.
  let server = await EHTestsCommon.sync_httpd_setup();
  await EHTestsCommon.setUp(server);

  // By calling sync, we ensure we're logged in.
  await Service.sync();
  Assert.equal(Status.sync, SYNC_SUCCEEDED);
  Assert.ok(Service.isLoggedIn);

  await EHTestsCommon.generateCredentialsChangedFailure();

  let promiseObserved = promiseOneObserver("weave:ui:sync:error");

  setLastSync(PROLONGED_ERROR_DURATION);
  let ping = await wait_for_ping(() => errorHandler.syncAndReportErrors(), true);
  equal(ping.status.sync, CREDENTIALS_CHANGED);
  deepEqual(ping.failureReason, {
    name: "unexpectederror",
    error: "Error: Aborting sync, remote setup failed"
  });
  await promiseObserved;

  Assert.equal(Status.sync, CREDENTIALS_CHANGED);
  // If we clean this tick, telemetry won't get the right error
  await Async.promiseYield();
  await clean();
  await promiseStopServer(server);
});

add_task(async function test_login_syncAndReportErrors_network_error() {
  enableValidationPrefs();

  // Test network errors are reported when calling syncAndReportErrors.
  await configureIdentity({username: "broken.wipe"});
  Service.clusterURL = fakeServerUrl;

  let promiseObserved = promiseOneObserver("weave:ui:login:error");

  setLastSync(NON_PROLONGED_ERROR_DURATION);
  errorHandler.syncAndReportErrors();
  await promiseObserved;

  Assert.equal(Status.login, LOGIN_FAILED_NETWORK_ERROR);

  await clean();
});


add_task(async function test_sync_syncAndReportErrors_network_error() {
  enableValidationPrefs();

  // Test network errors are reported when calling syncAndReportErrors.
  Services.io.offline = true;

  let promiseUISyncError = promiseOneObserver("weave:ui:sync:error");

  setLastSync(NON_PROLONGED_ERROR_DURATION);
  errorHandler.syncAndReportErrors();
  await promiseUISyncError;
  Assert.equal(Status.sync, LOGIN_FAILED_NETWORK_ERROR);

  Services.io.offline = false;
  await clean();
});

add_task(async function test_login_syncAndReportErrors_prolonged_network_error() {
  enableValidationPrefs();

  // Test prolonged, network errors are reported
  // when calling syncAndReportErrors.
  await configureIdentity({username: "johndoe"});

  Service.clusterURL = fakeServerUrl;

  let promiseObserved = promiseOneObserver("weave:ui:login:error");

  setLastSync(PROLONGED_ERROR_DURATION);
  errorHandler.syncAndReportErrors();
  await promiseObserved;
  Assert.equal(Status.login, LOGIN_FAILED_NETWORK_ERROR);

  await clean();
});

add_task(async function test_sync_syncAndReportErrors_prolonged_network_error() {
  enableValidationPrefs();

  // Test prolonged, network errors are reported
  // when calling syncAndReportErrors.
  Services.io.offline = true;

  let promiseUISyncError = promiseOneObserver("weave:ui:sync:error");

  setLastSync(PROLONGED_ERROR_DURATION);
  errorHandler.syncAndReportErrors();
  await promiseUISyncError;
  Assert.equal(Status.sync, LOGIN_FAILED_NETWORK_ERROR);

  Services.io.offline = false;
  await clean();
});

add_task(async function test_login_prolonged_non_network_error() {
  enableValidationPrefs();

  // Test prolonged, non-network errors are reported
  let server = await EHTestsCommon.sync_httpd_setup();
  await EHTestsCommon.setUp(server);
  Service.identity.resetSyncKeyBundle();

  let promiseObserved = promiseOneObserver("weave:ui:login:error");

  setLastSync(PROLONGED_ERROR_DURATION);
  await Service.sync();
  await promiseObserved;
  Assert.equal(Status.sync, PROLONGED_SYNC_FAILURE);
  Assert.ok(errorHandler.didReportProlongedError);

  await clean();
  await promiseStopServer(server);
});

add_task(async function test_sync_prolonged_non_network_error() {
  enableValidationPrefs();

  // Test prolonged, non-network errors are reported
  let server = await EHTestsCommon.sync_httpd_setup();
  await EHTestsCommon.setUp(server);

  // By calling sync, we ensure we're logged in.
  await Service.sync();
  Assert.equal(Status.sync, SYNC_SUCCEEDED);
  Assert.ok(Service.isLoggedIn);

  await EHTestsCommon.generateCredentialsChangedFailure();

  let promiseObserved = promiseOneObserver("weave:ui:sync:error");

  setLastSync(PROLONGED_ERROR_DURATION);

  let ping = await sync_and_validate_telem(true);
  equal(ping.status.sync, PROLONGED_SYNC_FAILURE);
  deepEqual(ping.failureReason, {
    name: "unexpectederror",
    error: "Error: Aborting sync, remote setup failed"
  });
  await promiseObserved;
  Assert.equal(Status.sync, PROLONGED_SYNC_FAILURE);
  Assert.ok(errorHandler.didReportProlongedError);
  await clean();
  await promiseStopServer(server);
});

add_task(async function test_login_prolonged_network_error() {
  enableValidationPrefs();

  // Test prolonged, network errors are reported
  await configureIdentity({username: "johndoe"});
  Service.clusterURL = fakeServerUrl;

  let promiseObserved = promiseOneObserver("weave:ui:login:error");

  setLastSync(PROLONGED_ERROR_DURATION);
  await Service.sync();
  await promiseObserved;
  Assert.equal(Status.sync, PROLONGED_SYNC_FAILURE);
  Assert.ok(errorHandler.didReportProlongedError);

  await clean();
});

add_task(async function test_sync_prolonged_network_error() {
  enableValidationPrefs();

  // Test prolonged, network errors are reported
  Services.io.offline = true;

  let promiseUISyncError = promiseOneObserver("weave:ui:sync:error");

  setLastSync(PROLONGED_ERROR_DURATION);
  await Service.sync();
  await promiseUISyncError;
  Assert.equal(Status.sync, PROLONGED_SYNC_FAILURE);
  Assert.ok(errorHandler.didReportProlongedError);

  Services.io.offline = false;
  await clean();
});

add_task(async function test_login_non_network_error() {
  enableValidationPrefs();

  // Test non-network errors are reported
  let server = await EHTestsCommon.sync_httpd_setup();
  await EHTestsCommon.setUp(server);
  Service.identity.resetSyncKeyBundle();

  let promiseObserved = promiseOneObserver("weave:ui:login:error");

  setLastSync(NON_PROLONGED_ERROR_DURATION);
  await Service.sync();
  await promiseObserved;
  Assert.equal(Status.login, LOGIN_FAILED_NO_PASSPHRASE);
  Assert.ok(!errorHandler.didReportProlongedError);

  await clean();
  await promiseStopServer(server);
});

add_task(async function test_sync_non_network_error() {
  enableValidationPrefs();

  // Test non-network errors are reported
  let server = await EHTestsCommon.sync_httpd_setup();
  await EHTestsCommon.setUp(server);

  // By calling sync, we ensure we're logged in.
  await Service.sync();
  Assert.equal(Status.sync, SYNC_SUCCEEDED);
  Assert.ok(Service.isLoggedIn);

  await EHTestsCommon.generateCredentialsChangedFailure();

  let promiseObserved = promiseOneObserver("weave:ui:sync:error");

  setLastSync(NON_PROLONGED_ERROR_DURATION);
  await Service.sync();
  await promiseObserved;
  Assert.equal(Status.sync, CREDENTIALS_CHANGED);
  Assert.ok(!errorHandler.didReportProlongedError);

  await clean();
  await promiseStopServer(server);
});

add_task(async function test_login_network_error() {
  enableValidationPrefs();

  await configureIdentity({username: "johndoe"});
  Service.clusterURL = fakeServerUrl;

  let promiseObserved = promiseOneObserver("weave:ui:clear-error");
  // Test network errors are not reported.

  setLastSync(NON_PROLONGED_ERROR_DURATION);
  await Service.sync();
  await promiseObserved;
  Assert.equal(Status.login, LOGIN_FAILED_NETWORK_ERROR);
  Assert.ok(!errorHandler.didReportProlongedError);

  Services.io.offline = false;
  await clean();
});

add_task(async function test_sync_network_error() {
  enableValidationPrefs();

  // Test network errors are not reported.
  Services.io.offline = true;

  let promiseSyncFinished = promiseOneObserver("weave:ui:sync:finish");

  setLastSync(NON_PROLONGED_ERROR_DURATION);
  await Service.sync();
  await promiseSyncFinished;
  Assert.equal(Status.sync, LOGIN_FAILED_NETWORK_ERROR);
  Assert.ok(!errorHandler.didReportProlongedError);

  Services.io.offline = false;
  await clean();
});

add_task(async function test_sync_server_maintenance_error() {
  enableValidationPrefs();

  // Test server maintenance errors are not reported.
  let server = await EHTestsCommon.sync_httpd_setup();
  await EHTestsCommon.setUp(server);

  const BACKOFF = 42;
  engine.enabled = true;
  engine.exception = {status: 503,
                      headers: {"retry-after": BACKOFF}};

  function onSyncError() {
    do_throw("Shouldn't get here!");
  }
  Svc.Obs.add("weave:ui:sync:error", onSyncError);

  Assert.equal(Status.service, STATUS_OK);

  let promiseObserved = promiseOneObserver("weave:ui:sync:finish");

  setLastSync(NON_PROLONGED_ERROR_DURATION);
  let ping = await sync_and_validate_telem(true);
  equal(ping.status.sync, SERVER_MAINTENANCE);
  deepEqual(ping.engines.find(e => e.failureReason).failureReason, { name: "httperror", code: 503 });

  await promiseObserved;
  Assert.equal(Status.service, SYNC_FAILED_PARTIAL);
  Assert.equal(Status.sync, SERVER_MAINTENANCE);
  Assert.ok(!errorHandler.didReportProlongedError);

  await clean();
  await promiseStopServer(server);
});

add_task(async function test_info_collections_login_server_maintenance_error() {
  enableValidationPrefs();

  // Test info/collections server maintenance errors are not reported.
  let server = await EHTestsCommon.sync_httpd_setup();
  await EHTestsCommon.setUp(server);

  await configureIdentity({username: "broken.info"}, server);

  let backoffInterval;
  Svc.Obs.add("weave:service:backoff:interval", function observe(subject, data) {
    Svc.Obs.remove("weave:service:backoff:interval", observe);
    backoffInterval = subject;
  });

  function onUIUpdate() {
    do_throw("Shouldn't experience UI update!");
  }
  Svc.Obs.add("weave:ui:login:error", onUIUpdate);

  Assert.ok(!Status.enforceBackoff);
  Assert.equal(Status.service, STATUS_OK);

  let promiseObserved = promiseOneObserver("weave:ui:clear-error");

  setLastSync(NON_PROLONGED_ERROR_DURATION);
  await Service.sync();
  await promiseObserved;

  Assert.ok(Status.enforceBackoff);
  Assert.equal(backoffInterval, 42);
  Assert.equal(Status.service, LOGIN_FAILED);
  Assert.equal(Status.login, SERVER_MAINTENANCE);
  Assert.ok(!errorHandler.didReportProlongedError);

  Svc.Obs.remove("weave:ui:login:error", onUIUpdate);
  await clean();
  await promiseStopServer(server);
});

add_task(async function test_meta_global_login_server_maintenance_error() {
  enableValidationPrefs();

  // Test meta/global server maintenance errors are not reported.
  let server = await EHTestsCommon.sync_httpd_setup();
  await EHTestsCommon.setUp(server);

  await configureIdentity({username: "broken.meta"}, server);

  let backoffInterval;
  Svc.Obs.add("weave:service:backoff:interval", function observe(subject, data) {
    Svc.Obs.remove("weave:service:backoff:interval", observe);
    backoffInterval = subject;
  });

  function onUIUpdate() {
    do_throw("Shouldn't get here!");
  }
  Svc.Obs.add("weave:ui:login:error", onUIUpdate);

  Assert.ok(!Status.enforceBackoff);
  Assert.equal(Status.service, STATUS_OK);

  let promiseObserved = promiseOneObserver("weave:ui:clear-error");

  setLastSync(NON_PROLONGED_ERROR_DURATION);
  await Service.sync();
  await promiseObserved;

  Assert.ok(Status.enforceBackoff);
  Assert.equal(backoffInterval, 42);
  Assert.equal(Status.service, LOGIN_FAILED);
  Assert.equal(Status.login, SERVER_MAINTENANCE);
  Assert.ok(!errorHandler.didReportProlongedError);

  Svc.Obs.remove("weave:ui:login:error", onUIUpdate);
  await clean();
  await promiseStopServer(server);
});
