diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1fd4591..5779a57 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,7 +2,6 @@ cmake_minimum_required(VERSION 3.17)
 
 option(ENABLE_ICONV "Use libiconv to convert encoding" ON)
 option(ENABLE_STANDALONE "Build utils standalone" OFF)
-option(ENABLE_CXX17 "Enable C++ 17" OFF)
 option(INSTALL_DEP_FILES "Install a file with dependences." OFF)
 option(ENABLE_SSL "Enable SSL" OFF)
 option(ENABLE_ZLIB "Use Zlib to uncompress http data." OFF)
@@ -186,9 +185,7 @@ endif()
 if (ENABLE_ZLIB)
     target_link_libraries(utils ZLIB::ZLIB)
 endif()
-if (ENABLE_CXX17)
-    target_compile_features(utils PRIVATE cxx_std_17)
-endif()
+target_compile_features(utils PRIVATE cxx_std_17)
 if (ENABLE_STANDALONE)
     install(TARGETS utils)
 endif()
diff --git a/meson.build b/meson.build
index f4839fd..e472270 100644
--- a/meson.build
+++ b/meson.build
@@ -1,4 +1,4 @@
-project('utils')
+project('utils', default_options: ['cpp_std=c++17'])
 add_languages('c', 'cpp', required: true)
 
 cc = meson.get_compiler('c')
@@ -181,3 +181,19 @@ utils_dep = declare_dependency(include_directories: include_directories('.'), li
 if get_option('utils_standalone')
     install_headers(source_file_headers)
 endif
+
+if get_option('test')
+    gtest = subproject('gtest')
+    gtest_main_dep = gtest.get_variable('gtest_main_dep')
+    test_exe = executable('unittest', 
+        files(
+            'test/stack_test.cpp',
+            'test/queue_test.cpp',
+            'test/binary_tree_test.cpp',
+            'test/hash_map_test.cpp',
+            'test/hash_lib_test.cpp',
+        ),
+        dependencies: [utils_dep, gtest_main_dep],
+    )
+    test('unittest', test_exe, args: ['-v'], timeout: 60)
+endif
diff --git a/meson_options.txt b/meson_options.txt
index d9b8768..ed0c79b 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -2,3 +2,4 @@ option('utils_iconv', type: 'feature', value: 'auto', description: 'Enable iconv
 option('utils_standalone', type: 'boolean', value: false, description: 'Build standalone utils')
 option('utils_ssl', type: 'feature', value: 'disabled', description: 'Enable SSL support')
 option('utils_zlib', type: 'feature', value: 'disabled', description: 'Enable zlib support for uncompress http data.')
+option('test', type: 'boolean', value: false, description: 'Enable test')
diff --git a/subprojects/.gitignore b/subprojects/.gitignore
new file mode 100644
index 0000000..355164c
--- /dev/null
+++ b/subprojects/.gitignore
@@ -0,0 +1 @@
+*/
diff --git a/subprojects/gtest.wrap b/subprojects/gtest.wrap
new file mode 100644
index 0000000..ba73d96
--- /dev/null
+++ b/subprojects/gtest.wrap
@@ -0,0 +1,16 @@
+[wrap-file]
+directory = googletest-1.15.2
+source_url = https://github.com/google/googletest/archive/refs/tags/v1.15.2.tar.gz
+source_filename = gtest-1.15.2.tar.gz
+source_hash = 7b42b4d6ed48810c5362c265a17faebe90dc2373c885e5216439d37927f02926
+patch_filename = gtest_1.15.2-4_patch.zip
+patch_url = https://wrapdb.mesonbuild.com/v2/gtest_1.15.2-4/get_patch
+patch_hash = a5151324b97e6a98fa7a0e8095523e6d5c4bb3431210d6ac4ad9800c345acf40
+source_fallback_url = https://github.com/mesonbuild/wrapdb/releases/download/gtest_1.15.2-4/gtest-1.15.2.tar.gz
+wrapdb_version = 1.15.2-4
+
+[provide]
+gtest = gtest_dep
+gtest_main = gtest_main_dep
+gmock = gmock_dep
+gmock_main = gmock_main_dep
diff --git a/test/hash_lib_test.cpp b/test/hash_lib_test.cpp
index d4b2261..53bf4dc 100644
--- a/test/hash_lib_test.cpp
+++ b/test/hash_lib_test.cpp
@@ -12,6 +12,7 @@ TEST(HashLibTest, SHA512ClassTest) {
     GTEST_ASSERT_EQ(re, sha512.digest());
     auto hexRe = hashHex<SHA512>("Hello, World!");
     GTEST_ASSERT_EQ(hexRe, sha512.hexDigest());
+    GTEST_ASSERT_EQ(hashHex<SHA512>("Hello, World!Hello, World!"), hashHex<SHA512>("Hello, World!", another));
     another.update("Hello, World!");
     GTEST_ASSERT_EQ(hashHex<SHA512>("Hello, World!Hello, World!"), another.hexDigest());
     sha512.update("Hello, World!");