TST: add test package depending on a cmake subproject

Author: dnicolodi

Diff for: tests/packages/cmake-subproject/cmakesubproject.pyx

@@ -0,0 +1,9 @@
+cdef extern from "cmaketest.hpp":
+    cdef cppclass Test:
+        Test(int) except +
+        int add(int)
+
+
+def sum(int a, int b):
+    t = new Test(a)
+    return t.add(b)

Diff for: tests/packages/cmake-subproject/meson.build

@@ -0,0 +1,13 @@
+project('cmake-subproject', ['c', 'cpp', 'cython'], version: '1')
+
+dep = dependency('cmaketest')
+
+py = import('python').find_installation()
+
+py.extension_module(
+    'cmakesubproject',
+    'cmakesubproject.pyx',
+    dependencies: dep,
+    override_options: ['cython_language=cpp'],
+    install: true,
+)

Diff for: tests/packages/cmake-subproject/pyproject.toml

@@ -0,0 +1,7 @@
+# SPDX-FileCopyrightText: 2021 The meson-python developers
+#
+# SPDX-License-Identifier: MIT
+
+[build-system]
+build-backend = 'mesonpy'
+requires = ['meson-python']

Diff for: tests/packages/cmake-subproject/subprojects/cmaketest.wrap

@@ -0,0 +1,5 @@
+[wrap-file]
+method = cmake
+
+[provide]
+cmaketest = cmaketest_dep

Diff for: tests/packages/cmake-subproject/subprojects/cmaketest/CMakeLists.txt

@@ -0,0 +1,13 @@
+cmake_minimum_required(VERSION 3.5)
+
+project(cmaketest)
+set(CMAKE_CXX_STANDARD 14)
+
+include_directories(${CMAKE_CURRENT_BINARY_DIR})
+
+add_library(cmaketest SHARED cmaketest.cpp)
+
+include(GenerateExportHeader)
+generate_export_header(cmaketest)
+
+install(TARGETS cmaketest)

Diff for: tests/packages/cmake-subproject/subprojects/cmaketest/cmaketest.cpp

@@ -0,0 +1,9 @@
+#include "cmaketest.hpp"
+
+Test::Test(int x) {
+  this->x = x;
+}
+
+int Test::add(int y) const {
+  return x + y;
+}

Diff for: tests/packages/cmake-subproject/subprojects/cmaketest/cmaketest.hpp

@@ -0,0 +1,10 @@
+#pragma once
+#include "cmaketest_export.h"
+
+class CMAKETEST_EXPORT Test {
+private:
+  int x;
+public:
+  Test(int x);
+  int add(int y) const;
+};

Diff for: tests/test_wheel.py

@@ -362,3 +362,15 @@ def test_custom_target_install_dir(package_custom_target_dir, tmp_path):
         'package/generated/one.py',
         'package/generated/two.py',
     }
+
+
+@pytest.mark.skipif(sys.platform not in {'linux', 'darwin'}, reason='Not supported on this platform')
+def test_cmake_subproject(wheel_cmake_subproject):
+    artifact = wheel.wheelfile.WheelFile(wheel_cmake_subproject)
+    assert wheel_contents(artifact) == {
+        'cmake_subproject-1.dist-info/METADATA',
+        'cmake_subproject-1.dist-info/RECORD',
+        'cmake_subproject-1.dist-info/WHEEL',
+        f'.cmake_subproject.mesonpy.libs/libexample{LIB_SUFFIX}',
+        f'cmakesubproject{EXT_SUFFIX}',
+    }