7 files changed, 199 insertions, 0 deletions

diff --git a/meta-selftest/recipes-test/cpp/files/CMakeLists.txt b/meta-selftest/recipes-test/cpp/files/CMakeLists.txt
new file mode 100644
index 0000000000..6fa6917d89
--- /dev/null
+++ b/meta-selftest/recipes-test/cpp/files/CMakeLists.txt
@@ -0,0 +1,61 @@
+#
+# Copyright OpenEmbedded Contributors
+#
+# SPDX-License-Identifier: MIT
+#
+
+cmake_minimum_required(VERSION 3.22)
+
+project(cmake-example
+  VERSION 1.0.0
+  LANGUAGES CXX
+)
+
+option(BUILD_SHARED_LIBS "Build using shared libraries" ON)
+option(FAILING_TEST "Compile a failing unit test to test the test infrastructure" OFF)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED On)
+set(CMAKE_CXX_EXTENSIONS Off)
+
+include(GNUInstallDirs)
+
+# Linking a small library makes the example more useful for testing.
+find_package(json-c)
+
+# A simple library linking json-c library found by pkgconfig
+add_library(cmake-example-lib cpp-example-lib.cpp cpp-example-lib.hpp)
+set_target_properties(cmake-example-lib PROPERTIES 
+    VERSION ${PROJECT_VERSION}
+    SOVERSION ${PROJECT_VERSION_MAJOR}
+)
+target_link_libraries(cmake-example-lib PRIVATE json-c::json-c)
+
+install(TARGETS cmake-example-lib
+    INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
+    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+)
+
+# A simple executable linking the library
+add_executable(cmake-example cpp-example.cpp)
+target_link_libraries(cmake-example PRIVATE cmake-example-lib)
+
+install(TARGETS cmake-example
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+)
+
+# A simple test executable for testing the library
+add_executable(test-cmake-example test-cpp-example.cpp)
+target_link_libraries(test-cmake-example PRIVATE cmake-example-lib)
+
+if (FAILING_TEST)
+    target_compile_definitions(test-cmake-example PRIVATE FAIL_COMPARISON_STR="foo")
+endif(FAILING_TEST)
+
+install(TARGETS test-cmake-example
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+)
+
+include(CTest)
+add_test(NAME test-cmake-example COMMAND test-cmake-example)
diff --git a/meta-selftest/recipes-test/cpp/files/cpp-example-lib.cpp b/meta-selftest/recipes-test/cpp/files/cpp-example-lib.cpp
new file mode 100644
index 0000000000..d3dc976864
--- /dev/null
+++ b/meta-selftest/recipes-test/cpp/files/cpp-example-lib.cpp
@@ -0,0 +1,33 @@
+/*
+ * Copyright OpenEmbedded Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <iostream>
+#include <string>
+#include <json-c/json.h>
+#include "cpp-example-lib.hpp"
+
+const std::string &CppExample::get_string()
+{
+    return test_string;
+}
+
+const char *CppExample::get_json_c_version()
+{
+    return json_c_version();
+}
+
+void CppExample::print_json()
+{
+    struct json_object *jobj;
+    const int flag = JSON_C_TO_STRING_SPACED | JSON_C_TO_STRING_PRETTY;
+
+    jobj = json_object_new_object();
+    json_object_object_add(jobj, "test_string", json_object_new_string(test_string.c_str()));
+
+    std::cout << json_object_to_json_string_ext(jobj, flag) << std::endl;
+
+    json_object_put(jobj); // Delete the json object
+}
diff --git a/meta-selftest/recipes-test/cpp/files/cpp-example-lib.hpp b/meta-selftest/recipes-test/cpp/files/cpp-example-lib.hpp
new file mode 100644
index 0000000000..0ad9e7b7b2
--- /dev/null
+++ b/meta-selftest/recipes-test/cpp/files/cpp-example-lib.hpp
@@ -0,0 +1,21 @@
+/*
+ * Copyright OpenEmbedded Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#pragma once
+
+#include <string>
+
+struct CppExample
+{
+    inline static const std::string test_string = "cpp-example-lib Magic: 123456789";
+
+    /* Retrieve a constant string */
+    const std::string &get_string();
+    /* Retrieve a constant string from a library */
+    const char *get_json_c_version();
+    /* Call a more advanced function from a library */
+    void print_json();
+};
diff --git a/meta-selftest/recipes-test/cpp/files/cpp-example.cpp b/meta-selftest/recipes-test/cpp/files/cpp-example.cpp
new file mode 100644
index 0000000000..9889554e0c
--- /dev/null
+++ b/meta-selftest/recipes-test/cpp/files/cpp-example.cpp
@@ -0,0 +1,18 @@
+/*
+ * Copyright OpenEmbedded Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include "cpp-example-lib.hpp"
+
+#include <iostream>
+
+int main()
+{
+    auto cpp_example = CppExample();
+    std::cout << "C++ example linking " << cpp_example.get_string() << std::endl;
+    std::cout << "Linking json-c version " << cpp_example.get_json_c_version() << std::endl;
+    cpp_example.print_json();
+    return 0;
+}
diff --git a/meta-selftest/recipes-test/cpp/files/meson.build b/meta-selftest/recipes-test/cpp/files/meson.build
new file mode 100644
index 0000000000..0e2b55f3a2
--- /dev/null
+++ b/meta-selftest/recipes-test/cpp/files/meson.build
@@ -0,0 +1,38 @@
+#
+# Copyright OpenEmbedded Contributors
+#
+# SPDX-License-Identifier: MIT
+#
+
+project('meson-example', 'cpp',
+    version: '1.0.0',
+    default_options: ['cpp_std=c++17']
+    )
+
+jsoncdep = dependency('json-c')
+
+if get_option('FAILING_TEST').enabled()
+    add_project_arguments('-DFAIL_COMPARISON_STR=foo', language: 'cpp')
+endif
+
+mesonexlib = shared_library('mesonexlib',
+    'cpp-example-lib.cpp', 'cpp-example-lib.hpp',
+        version: meson.project_version(),
+        soversion: meson.project_version().split('.')[0],
+    dependencies : jsoncdep,
+    install : true
+    )
+
+executable('mesonex',
+    'cpp-example.cpp',
+    link_with : mesonexlib,
+    install : true
+    )
+
+test_mesonex = executable('test-mesonex',
+    'test-cpp-example.cpp',
+    link_with : mesonexlib,
+    install : true
+)
+
+test('meson example test', test_mesonex)
diff --git a/meta-selftest/recipes-test/cpp/files/meson.options b/meta-selftest/recipes-test/cpp/files/meson.options
new file mode 100644
index 0000000000..58a0bf9e61
--- /dev/null
+++ b/meta-selftest/recipes-test/cpp/files/meson.options
@@ -0,0 +1,3 @@
+
+option('FAILING_TEST', type : 'feature', value : 'disabled',
+    description : 'Compile a failing unit test to test the test infrastructure')
diff --git a/meta-selftest/recipes-test/cpp/files/test-cpp-example.cpp b/meta-selftest/recipes-test/cpp/files/test-cpp-example.cpp
new file mode 100644
index 0000000000..83c9bfa844
--- /dev/null
+++ b/meta-selftest/recipes-test/cpp/files/test-cpp-example.cpp
@@ -0,0 +1,25 @@
+/*
+* Copyright OpenEmbedded Contributors
+*
+* SPDX-License-Identifier: MIT
+*/
+
+#include "cpp-example-lib.hpp"
+
+#include <iostream>
+
+/* This is for creating a failing test for testing the test infrastructure */
+#ifndef FAIL_COMPARISON_STR
+#define FAIL_COMPARISON_STR ""
+#endif
+
+int main() {
+    auto cpp_example = CppExample();
+    auto ret_string = cpp_example.get_string();
+    if(0 == ret_string.compare(CppExample::test_string + FAIL_COMPARISON_STR)) {
+        std::cout << "PASS: " << ret_string << " = " << CppExample::test_string << std::endl;
+    } else {
+        std::cout << "FAIL: " << ret_string << " != " << CppExample::test_string << std::endl;
+        return 1;
+    }
+}