diff --git a/tests/python/test_qt.cpp b/tests/python/test_qt.cpp
index 5ef1f00..b2f9064 100644
--- a/tests/python/test_qt.cpp
+++ b/tests/python/test_qt.cpp
@@ -33,6 +33,14 @@ PYBIND11_MODULE(qt, m)
         return QString::number(value);
     });
 
+    // QByteArray
+    m.def("create_qbytearray_from_raw", [](const char* raw) {
+        return QByteArray(raw);
+    });
+    m.def("get_qbytearray_length", [](const QByteArray& data) {
+        return data.size();
+    });
+
     // QStringList
 
     m.def("qstringlist_join", [](QStringList const& values, QString const& sep) {
diff --git a/tests/python/test_qt.py b/tests/python/test_qt.py
index 991e33c..fd9fbc8 100644
--- a/tests/python/test_qt.py
+++ b/tests/python/test_qt.py
@@ -1,4 +1,6 @@
-from PyQt6.QtCore import QDateTime, Qt
+import struct
+
+from PyQt6.QtCore import QByteArray, QDateTime, Qt
 
 import mobase_tests.qt as m
 
@@ -23,6 +25,12 @@ def test_qstring():
     assert m.consume_qstring_with_emoji("🌎") == 2
 
 
+def test_qbytearray():
+    arr = m.create_qbytearray_from_raw("hello world!")
+    assert isinstance(arr, QByteArray)
+    assert m.get_qbytearray_length(arr) == 12
+
+
 def test_qstringlist():
     assert m.qstringlist_join([""], "--") == ""
     assert m.qstringlist_join(["a", "b"], "") == "ab"
diff --git a/typings/mobase_tests/qt.pyi b/typings/mobase_tests/qt.pyi
index 088ef2a..a10d574 100644
--- a/typings/mobase_tests/qt.pyi
+++ b/typings/mobase_tests/qt.pyi
@@ -10,6 +10,9 @@ __all__ = [
     "SimpleEnum",
     "consume_qstring_with_emoji",
     "create_qstring_with_emoji",
+    "create_qbytearray_from_raw",
+    "get_qbytearray_length",
+    "qbytearray_to_longlong",
     "datetime_from_string",
     "datetime_to_string",
     "int_to_qstring",
@@ -92,6 +95,9 @@ def qflags_explode(arg0: int) -> tuple[int, bool, bool, bool]: ...
 def qmap_to_length(arg0: dict[str, str]) -> dict[str, int]: ...
 def qstring_to_int(arg0: str) -> int: ...
 def qstring_to_stdstring(arg0: str) -> str: ...
+def create_qbytearray_from_raw(arg0: str | bytes) -> PyQt6.QtCore.QByteArray: ...
+def get_qbytearray_length(arg0: PyQt6.QtCore.QByteArray) -> int: ...
+def qbytearray_to_longlong(arg0: PyQt6.QtCore.QByteArray) -> int: ...
 def qstringlist_at(arg0: typing.Sequence[str], arg1: int) -> str: ...
 def qstringlist_join(arg0: typing.Sequence[str], arg1: str) -> str: ...
 def qvariant_bool() -> MoVariant: ...