Major fixes and new features

venv/lib/python3.12/site-packages/mypyc/test/test_external.py

@@ -0,0 +1,49 @@
+"""Test cases that run tests as subprocesses."""
+
+from __future__ import annotations
+
+import os
+import subprocess
+import sys
+import unittest
+
+base_dir = os.path.join(os.path.dirname(__file__), "..", "..")
+
+
+class TestExternal(unittest.TestCase):
+    # TODO: Get this to work on Windows.
+    # (Or don't. It is probably not a good use of time.)
+    @unittest.skipIf(sys.platform.startswith("win"), "rt tests don't work on windows")
+    def test_c_unit_test(self) -> None:
+        """Run C unit tests in a subprocess."""
+        # Build Google Test, the C++ framework we use for testing C code.
+        # The source code for Google Test is copied to this repository.
+        cppflags: list[str] = []
+        env = os.environ.copy()
+        if sys.platform == "darwin":
+            cppflags += ["-mmacosx-version-min=10.10", "-stdlib=libc++"]
+        env["CPPFLAGS"] = " ".join(cppflags)
+        subprocess.check_call(
+            ["make", "libgtest.a"],
+            env=env,
+            cwd=os.path.join(base_dir, "mypyc", "external", "googletest", "make"),
+        )
+        # Build Python wrapper for C unit tests.
+        env = os.environ.copy()
+        env["CPPFLAGS"] = " ".join(cppflags)
+        status = subprocess.check_call(
+            [sys.executable, "setup.py", "build_ext", "--inplace"],
+            env=env,
+            cwd=os.path.join(base_dir, "mypyc", "lib-rt"),
+        )
+        # Run C unit tests.
+        env = os.environ.copy()
+        if "GTEST_COLOR" not in os.environ:
+            env["GTEST_COLOR"] = "yes"  # Use fancy colors
+        status = subprocess.call(
+            [sys.executable, "-c", "import sys, test_capi; sys.exit(test_capi.run_tests())"],
+            env=env,
+            cwd=os.path.join(base_dir, "mypyc", "lib-rt"),
+        )
+        if status != 0:
+            raise AssertionError("make test: C unit test failure")