fix: patching pypy venv (#502)

Potentially revert / remove on release of PyPy 7.3.4.

* patching linux and macos

* try test

* add patch files for pypy2.7

* fix installing

* Combine patch files into one

* Simplify further, and add test to remind ourselves to remove the PyPy patch

* ignore fail of patch on linux

make new test failing only on linux

* fix test

* add timeout

* fix patch on linux

* change `-N` to `--force`

Co-authored-by: Yannick Jadoul <yannick.jadoul@belgacom.net>

test/test_before_test.py

@@ -37,13 +37,15 @@ class TestBeforeTest(TestCase):
 def test(tmp_path):
     project_dir = tmp_path / 'project'
     before_test_project.generate(project_dir)
+    test_project_dir = project_dir / 'dependency'
+    test_projects.new_c_project().generate(test_project_dir)
 
     # build the wheels
     actual_wheels = utils.cibuildwheel_run(project_dir, add_env={
         # write python version information to a temporary file, this is
         # checked in setup.py
-        'CIBW_BEFORE_TEST': '''python -c "import sys; open('/tmp/pythonversion.txt', 'w').write(sys.version)" && python -c "import sys; open('/tmp/pythonprefix.txt', 'w').write(sys.prefix)"''',
-        'CIBW_BEFORE_TEST_WINDOWS': '''python -c "import sys; open('c:\\pythonversion.txt', 'w').write(sys.version)" && python -c "import sys; open('c:\\pythonprefix.txt', 'w').write(sys.prefix)"''',
+        'CIBW_BEFORE_TEST': '''python -c "import sys; open('/tmp/pythonversion.txt', 'w').write(sys.version)" && python -c "import sys; open('/tmp/pythonprefix.txt', 'w').write(sys.prefix)" && python -m pip install {project}/dependency''',
+        'CIBW_BEFORE_TEST_WINDOWS': '''python -c "import sys; open('c:\\pythonversion.txt', 'w').write(sys.version)" && python -c "import sys; open('c:\\pythonprefix.txt', 'w').write(sys.prefix)" && python -m pip install {project}/dependency''',
         'CIBW_TEST_REQUIRES': 'nose',
         # the 'false ||' bit is to ensure this command runs in a shell on
         # mac/linux.

test/test_testing.py

@@ -64,6 +64,10 @@ class TestSpam(TestCase):
         bits = struct.calcsize("P") * 8
         if bits == 32:
             self.assertEqual(platform.machine(), "i686")
+
+    def test_time_to_remove_the_pypy_venv_patch(self):
+        if sys.platform == "darwin":
+            assert not hasattr(sys, "pypy_version_info") or sys.pypy_version_info < (7,3,4)
 '''