04-enable-subprocess-tests.patch

Due to our new posix-node package, python-wasm does have subprocess support when
run on node.js.  We want to test it fully, since we are using this to do
better builds form source, and we will also bring this to the browser.
Also, subprocess support itself is critical to enable a large amount of
the test suite itself, e.g., test/test_code.py *uses* subprocess support in
order to do all kinds of subtle tests of Python itself.  Thus without subprocess
support, we can't really test our Python build properly.   In contrast, fork
is nice but it's impossible to implement in a browser properly, sinc there's
no access to the WASM runtime stack, for security reasons.  Also, it can't be
done efficiently in windows.   Python *uses* for to implement subprocess support,
but that is just an implementation detail we get around.

--- native/Lib/test/support/__init__.py	2022-08-05 07:45:18.000000000 -0700
+++ wasm/Lib/test/support/__init__.py	2022-09-15 17:10:12.000000000 -0700
@@ -524,6 +524,8 @@

 has_subprocess_support = not is_emscripten and not is_wasi

+has_subprocess_support = True
+
 def requires_subprocess():
     """Used for subprocess, os.spawn calls, fd inheritance"""
     return unittest.skipUnless(has_subprocess_support, "requires subprocess support")
@@ -531,6 +533,7 @@
 # Emscripten's socket emulation and WASI sockets have limitations.
 has_socket_support = not is_emscripten and not is_wasi

+
 def requires_working_socket(*, module=False):
     """Skip tests or modules that require working sockets