diff --git a/CMakeLists.txt b/CMakeLists.txt
index a5b16b8..58451ae 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -22,10 +22,11 @@ if (APPLE)
 endif ()
 
 find_package(Qt6 COMPONENTS
-        Core Widgets
+        Core Widgets Test
         REQUIRED)
 find_package(fmt CONFIG REQUIRED)
 
 add_subdirectory(third_party)
 add_subdirectory(editor)
 add_subdirectory(app)
+add_subdirectory(tests)
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
new file mode 100644
index 0000000..cfb2712
--- /dev/null
+++ b/tests/CMakeLists.txt
@@ -0,0 +1,21 @@
+#  Copyright (c) 2024 Feng Yang
+#
+#  I am making my contributions/submissions to this project solely in my
+#  personal capacity and am not conveying any rights to any intellectual
+#  property of any third parties.
+
+cmake_minimum_required(VERSION 3.16)
+project(tests LANGUAGES CXX)
+
+qt_standard_project_setup()
+
+qt_add_executable(${PROJECT_NAME}
+        main.cpp
+        test_qstring.cpp
+)
+
+target_link_libraries(${PROJECT_NAME} PRIVATE
+        Qt6::Core
+        Qt6::Test
+        Qt6::Widgets
+)
\ No newline at end of file
diff --git a/tests/main.cpp b/tests/main.cpp
new file mode 100644
index 0000000..ee747c2
--- /dev/null
+++ b/tests/main.cpp
@@ -0,0 +1,16 @@
+//  Copyright (c) 2024 Feng Yang
+//
+//  I am making my contributions/submissions to this project solely in my
+//  personal capacity and am not conveying any rights to any intellectual
+//  property of any third parties.
+
+#include <Qtest>
+
+#include "test_qstring.h"
+
+int main(int argc, char *argv[]) {
+    int status = 0;
+    status |= QTest::qExec(new TestQString, argc, argv);
+
+    return status;
+}
\ No newline at end of file
diff --git a/tests/test_qstring.cpp b/tests/test_qstring.cpp
new file mode 100644
index 0000000..a198c8d
--- /dev/null
+++ b/tests/test_qstring.cpp
@@ -0,0 +1,12 @@
+//  Copyright (c) 2024 Feng Yang
+//
+//  I am making my contributions/submissions to this project solely in my
+//  personal capacity and am not conveying any rights to any intellectual
+//  property of any third parties.
+
+#include "test_qstring.h"
+
+void TestQString::toUpper() {
+    QString str = "Hello";
+    QVERIFY(str.toUpper() == "HELLO");
+}
\ No newline at end of file
diff --git a/tests/test_qstring.h b/tests/test_qstring.h
new file mode 100644
index 0000000..33602a5
--- /dev/null
+++ b/tests/test_qstring.h
@@ -0,0 +1,15 @@
+//  Copyright (c) 2024 Feng Yang
+//
+//  I am making my contributions/submissions to this project solely in my
+//  personal capacity and am not conveying any rights to any intellectual
+//  property of any third parties.
+
+#pragma once
+
+#include <QTest>
+
+class TestQString : public QObject {
+    Q_OBJECT
+private slots:
+    void toUpper();
+};
\ No newline at end of file
diff --git a/vcpkg.json b/vcpkg.json
index 49e2b99..1928ac8 100644
--- a/vcpkg.json
+++ b/vcpkg.json
@@ -5,9 +5,6 @@
   "dependencies" : [ {
     "name" : "fmt",
     "version>=" : "10.1.1"
-  }, {
-    "name" : "gtest",
-    "version>=" : "1.14.0"
   }, {
     "name" : "vcpkg-cmake-config",
     "version>=" : "2022-02-06#1"