diff --git a/tools/ci/test_autocomplete/test_autocomplete.py b/tools/ci/test_autocomplete/test_autocomplete.py
index 49fe24be62..96e12e6b9a 100755
--- a/tools/ci/test_autocomplete/test_autocomplete.py
+++ b/tools/ci/test_autocomplete/test_autocomplete.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python
-# SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
+# SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD
 # SPDX-License-Identifier: Apache-2.0
 import collections
 import os
@@ -7,13 +7,49 @@ import unittest
 
 import pexpect
 
-Test = collections.namedtuple('Test', ['name', 'term', 'pattern', 'ext'])
+Test = collections.namedtuple('Test', ['name', 'shell', 'term', 'prefix', 'pattern', 'ext'])
 
+IDF_PATH = os.environ['IDF_PATH']
 
-TESTS = (Test('fish', 'vt100', 'all.*app.*app-flash.*bootloader.*', 'fish'),
-         Test('bash', 'xterm-256color', 'all.*app.*app-flash.*bootloader.*bootloader-flash.*build-system-targets.*clean.*', 'sh'),
-         Test('zsh', '', 'all.*app.*app-flash.*bootloader.*bootloader-flash.*build-system-targets.*clean.*', 'sh'))
-
+TESTS = (
+    Test('base',
+         'fish',
+         'vt100',
+         '',
+         'all.*app.*app-flash.*bootloader.*',
+         'fish'),
+    Test('base',
+         'bash',
+         'xterm-256color',
+         '',
+         'all.*app.*app-flash.*bootloader.*bootloader-flash.*build-system-targets.*clean.*',
+         'sh'),
+    Test('base',
+         'zsh',
+         '',
+         '',
+         'all.*app.*app-flash.*bootloader.*bootloader-flash.*build-system-targets.*clean.*',
+         'sh'),
+    # Tests for file autocompletion
+    Test('file',
+         'fish',
+         'vt100',
+         f'@{IDF_PATH}/README',
+         '.*README.*md.*',
+         'fish'),
+    Test('file',
+         'bash',
+         'xterm-256color',
+         f'@{IDF_PATH}/README',
+         '.*README.*md.*',
+         'sh'),
+    Test('file',
+         'zsh',
+         '',
+         f'@{IDF_PATH}/README',
+         '.*README.*md.*',
+         'sh')
+)
 
 # Additional positional arguments for all child.expect() calls are constant so we can rely on the order and print message
 # about which pattern was matched
@@ -34,19 +70,22 @@ def get_fail_msg(pproc: pexpect.spawn, msg: str, index: int) -> str:
 class UTTest(unittest.TestCase):
 
     def test_shell(self) -> None:
-        idf_path = os.environ['IDF_PATH']
         env = os.environ.copy()
         for test in TESTS:
             with self.subTest():
-                with open(os.path.join(idf_path, f'{test.name}.out'), 'wb') as o:
+                with open(os.path.join(IDF_PATH, f'{test.shell}.{test.name}.out'), 'wb') as o:
                     env['TERM'] = test.term
-                    with pexpect.spawn(f'{test.name} -i', env=env, logfile=o, timeout=200) as pproc:
-                        pproc.sendline(f'. {idf_path}/export.{test.ext}')
+                    with pexpect.spawn(f'{test.shell} -i', env=env, logfile=o, timeout=200) as pproc:
+                        if test.shell == 'bash':
+                            # The @-argument autocomplete works reliably in bash only
+                            # if @ is not included in COMP_WORDBREAKS.
+                            pproc.sendline('COMP_WORDBREAKS=${COMP_WORDBREAKS//@/}')
+                        pproc.sendline(f'. {IDF_PATH}/export.{test.ext}')
                         i = pproc.expect(['Go to the project directory and run.*idf\\.py build', *pargs])
                         self.assertEqual(i, 0, get_fail_msg(pproc, 'Export was not successful!', i))
-                        pproc.send('idf.py \t\t')
+                        pproc.send(f'idf.py {test.prefix}\t\t')
                         i = pproc.expect([test.pattern, *pargs], timeout=100)
-                        self.assertEqual(i, 0, get_fail_msg(pproc, f'Autocompletion for idf.py failed in {test.name}!', i))
+                        self.assertEqual(i, 0, get_fail_msg(pproc, f'Autocompletion for idf.py failed in {test.shell}!', i))
 
 
 if __name__ == '__main__':