diff --git a/tests/ibus-desktop-testing/run/test.sh b/tests/ibus-desktop-testing/run/test.sh
index d53faf5..af411a6 100755
--- a/tests/ibus-desktop-testing/run/test.sh
+++ b/tests/ibus-desktop-testing/run/test.sh
@@ -4,6 +4,11 @@
 
 rlJournalStart
     rlPhaseStartTest
+        rlRun -t "mkdir -p /usr/lib/systemd/system"
+        rlRun -t "cp ../tmp/gnome-headless-session@.service /usr/lib/systemd/system/."
+        rlRun -t "cp ../tmp/gdm-headless-login-session /usr/libexec/."
+        rlRun -t "chmod 755 /usr/libexec/gdm-headless-login-session"
+        rlRun -t "cp -R ../tmp/no-overview@fthx ."
         rlRun -t "/usr/bin/ibus-desktop-testing-runner --runner gnome --tests ibus-anthy --no-graphics --lang ja_JP.UTF-8"
     rlPhaseEnd
     rlPhaseStartCleanup
diff --git a/tests/ibus-desktop-testing/tmp/gdm-headless-login-session b/tests/ibus-desktop-testing/tmp/gdm-headless-login-session
new file mode 100755
index 0000000..68d9669
--- /dev/null
+++ b/tests/ibus-desktop-testing/tmp/gdm-headless-login-session
@@ -0,0 +1,157 @@
+#!/usr/bin/python3
+
+import argparse
+import pam
+import pwd
+import os
+import signal
+import sys
+
+import gi
+gi.require_version('AccountsService', '1.0')
+from gi.repository import AccountsService, GLib
+
+def run_desktop_in_new_session(pam_environment, user, session_desktop, tty_input, tty_output):
+    keyfile = GLib.KeyFile()
+    keyfile.load_from_data_dirs(f'wayland-sessions/{session_desktop}.desktop',
+                                GLib.KeyFileFlags.NONE)
+
+    try:
+        can_run_headless = keyfile.get_boolean(GLib.KEY_FILE_DESKTOP_GROUP,
+                                               'X-GDM-CanRunHeadless')
+    except GLib.GError:
+            raise Exception(f"Session {session_desktop} can't run headlessly")
+
+    if not can_run_headless:
+        raise Exception(f"Session {session_desktop} can't run headlessly")
+
+    executable = keyfile.get_string(GLib.KEY_FILE_DESKTOP_GROUP,
+                                    GLib.KEY_FILE_DESKTOP_KEY_TRY_EXEC)
+    if GLib.find_program_in_path(executable) is None:
+        raise Exception(f"Invalid session {session_desktop}")
+
+    command = keyfile.get_string(GLib.KEY_FILE_DESKTOP_GROUP,
+                                 GLib.KEY_FILE_DESKTOP_KEY_EXEC)
+    [success, args] = GLib.shell_parse_argv(command)
+
+    pam_handle = pam.pam()
+
+    for key, value in pam_environment.items():
+        pam_handle.putenv(f'{key}={value}')
+
+    if not pam_handle.authenticate(user, '', service='gdm-autologin', call_end=False):
+        raise Exception("Authentication failed")
+
+    for key, value in pam_environment.items():
+        pam_handle.putenv(f'{key}={value}')
+
+    if pam_handle.open_session() != pam.PAM_SUCCESS:
+        raise Exception("Failed to open PAM session")
+
+    session_environment = os.environ.copy()
+    session_environment.update(pam_handle.getenvlist())
+
+    user_info = pwd.getpwnam(user)
+    uid = user_info.pw_uid
+    gid = user_info.pw_gid
+
+    old_tty_output = os.fdopen(os.dup(2), 'w')
+
+    pid = os.fork()
+    if pid == 0:
+        try:
+            os.setsid()
+        except OSError as e:
+            print(f"Could not create new pid session: {e}", file=old_tty_output)
+
+        try:
+            os.dup2(tty_input.fileno(), 0)
+            os.dup2(tty_output.fileno(), 1)
+            os.dup2(tty_output.fileno(), 2)
+        except OSError as e:
+            print(f"Could not set up standard i/o: {e}", file=old_tty_output)
+
+        try:
+            os.initgroups(user, gid)
+            os.setgid(gid)
+            os.setuid(uid);
+        except OSError as e:
+            print(f"Could not become user {user} (uid={uid}): {e}", file=old_tty_output)
+
+        try:
+            os.execvpe(args[0], args, session_environment)
+        except OSError as e:
+            print(f"Could not run program \"{' '.join(arguments)}\": {e}", file=old_tty_output)
+        os._exit(1)
+
+
+    def signal_handler(sig, frame):
+        os.kill(pid, sig)
+
+    signal.signal(signal.SIGTERM, signal_handler)
+
+    try:
+        (_, exit_code) = os.waitpid(pid, 0);
+    except KeyboardInterrupt:
+        os.kill(pid, signal.SIGTERM)
+    except OSError as e:
+        print(f"Could not wait for program to finish: {e}", file=old_tty_output)
+
+    if os.WIFEXITED(exit_code):
+        exit_code = os.WEXITSTATUS(exit_code)
+    else:
+        os.kill(os.getpid(), os.WTERMSIG(exit_code))
+    old_tty_output.close()
+
+    if pam_handle.close_session() != pam.PAM_SUCCESS:
+        raise Exception("Failed to close PAM session")
+
+    pam_handle.end()
+
+    return exit_code
+
+def wait_for_user_data(user):
+    main_context = GLib.MainContext.default()
+    while not user.is_loaded():
+        main_context.iteration(True)
+
+def main():
+    parser = argparse.ArgumentParser(description='Run a desktop session in a PAM session as a specified user.')
+    parser.add_argument('--user', help='Username for which to run the session')
+
+    args = parser.parse_args()
+
+    if args.user is None:
+        parser.print_usage()
+        sys.exit(1)
+
+    try:
+        tty_path = '/dev/null'
+
+        tty_input = open(tty_path, 'r')
+        tty_output = open(tty_path, 'w')
+    except OSError as e:
+        raise Exception(f"Error opening /dev/null as tty associated with VT {vt}: {e}")
+
+    user_manager = AccountsService.UserManager().get_default()
+    user = user_manager.get_user(args.user)
+    wait_for_user_data(user)
+    session_desktop = user.get_session()
+    if not session_desktop:
+        session_desktop = 'gnome'
+
+    pam_environment = {}
+    pam_environment['XDG_SESSION_TYPE'] = 'wayland'
+    pam_environment['XDG_SESSION_CLASS'] = 'user'
+    pam_environment['XDG_SESSION_DESKTOP'] = session_desktop
+
+    try:
+        result = run_desktop_in_new_session(pam_environment, args.user, session_desktop, tty_input, tty_output)
+    except Exception as e:
+        raise Exception(f"Error running desktop session \"{session_desktop}\": {e}")
+    tty_input.close()
+    tty_output.close()
+    sys.exit(result)
+
+if __name__ == '__main__':
+    main()
diff --git a/tests/ibus-desktop-testing/tmp/gnome-headless-session@.service b/tests/ibus-desktop-testing/tmp/gnome-headless-session@.service
new file mode 100644
index 0000000..269d162
--- /dev/null
+++ b/tests/ibus-desktop-testing/tmp/gnome-headless-session@.service
@@ -0,0 +1,6 @@
+[Unit]
+Description=Headless desktop session
+
+[Service]
+ExecStart=/usr/libexec/gdm-headless-login-session --user=%i
+Restart=on-failure
diff --git a/tests/ibus-desktop-testing/tmp/no-overview@fthx/extension.js b/tests/ibus-desktop-testing/tmp/no-overview@fthx/extension.js
new file mode 100644
index 0000000..f0a6f28
--- /dev/null
+++ b/tests/ibus-desktop-testing/tmp/no-overview@fthx/extension.js
@@ -0,0 +1,26 @@
+/*
+  No overview at start-up
+  GNOME Shell 45+ extension
+  Contributors: @fthx
+  License: GPL v3
+*/
+
+import * as Main from 'resource:///org/gnome/shell/ui/main.js';
+
+export default class NoOverviewExtension {
+    enable() {
+        if (!Main.layoutManager._startingUp) {
+            return;
+        }
+
+        Main.layoutManager.connectObject(
+            'startup-complete',
+            () => Main.overview.hide(),
+            this
+        );
+    }
+
+    disable() {
+        Main.layoutManager.disconnectObject(this);
+    }
+}
diff --git a/tests/ibus-desktop-testing/tmp/no-overview@fthx/metadata.json b/tests/ibus-desktop-testing/tmp/no-overview@fthx/metadata.json
new file mode 100644
index 0000000..695d317
--- /dev/null
+++ b/tests/ibus-desktop-testing/tmp/no-overview@fthx/metadata.json
@@ -0,0 +1,10 @@
+{
+  "_generated": "Generated by SweetTooth, do not edit",
+  "description": "No overview at start-up. Nothing more.",
+  "name": "No overview at start-up",
+  "original-authors": ["fthx"],
+  "shell-version": ["46"],
+  "url": "https://github.com/fthx/no-overview",
+  "uuid": "no-overview@fthx",
+  "version": 999
+}
\ No newline at end of file