gh-93649: Split memory and docstring tests from _testcapimodule.c

Modules/Setup.stdlib.in

@@ -169,7 +169,7 @@
 @MODULE__XXTESTFUZZ_TRUE@_xxtestfuzz _xxtestfuzz/_xxtestfuzz.c _xxtestfuzz/fuzzer.c
 @MODULE__TESTBUFFER_TRUE@_testbuffer _testbuffer.c
 @MODULE__TESTINTERNALCAPI_TRUE@_testinternalcapi _testinternalcapi.c
-@MODULE__TESTCAPI_TRUE@_testcapi _testcapimodule.c _testcapi/vectorcall.c _testcapi/vectorcall_limited.c _testcapi/heaptype.c _testcapi/unicode.c _testcapi/getargs.c _testcapi/pytime.c _testcapi/datetime.c
+@MODULE__TESTCAPI_TRUE@_testcapi _testcapimodule.c _testcapi/vectorcall.c _testcapi/vectorcall_limited.c _testcapi/heaptype.c _testcapi/unicode.c _testcapi/getargs.c _testcapi/pytime.c _testcapi/datetime.c _testcapi/docstring.c _testcapi/mem.c
 
 # Some testing modules MUST be built as shared libraries.
 *shared*

Modules/_testcapi/docstring.c

@@ -0,0 +1,107 @@
+#include "parts.h"
+
+
+PyDoc_STRVAR(docstring_empty,
+""
+);
+
+PyDoc_STRVAR(docstring_no_signature,
+"This docstring has no signature."
+);
+
+PyDoc_STRVAR(docstring_with_invalid_signature,
+"docstring_with_invalid_signature($module, /, boo)\n"
+"\n"
+"This docstring has an invalid signature."
+);
+
+PyDoc_STRVAR(docstring_with_invalid_signature2,
+"docstring_with_invalid_signature2($module, /, boo)\n"
+"\n"
+"--\n"
+"\n"
+"This docstring also has an invalid signature."
+);
+
+PyDoc_STRVAR(docstring_with_signature,
+"docstring_with_signature($module, /, sig)\n"
+"--\n"
+"\n"
+"This docstring has a valid signature."
+);
+
+PyDoc_STRVAR(docstring_with_signature_but_no_doc,
+"docstring_with_signature_but_no_doc($module, /, sig)\n"
+"--\n"
+"\n"
+);
+
+PyDoc_STRVAR(docstring_with_signature_and_extra_newlines,
+"docstring_with_signature_and_extra_newlines($module, /, parameter)\n"
+"--\n"
+"\n"
+"\n"
+"This docstring has a valid signature and some extra newlines."
+);
+
+PyDoc_STRVAR(docstring_with_signature_with_defaults,
+"docstring_with_signature_with_defaults(module, s='avocado',\n"
+"        b=b'bytes', d=3.14, i=35, n=None, t=True, f=False,\n"
+"        local=the_number_three, sys=sys.maxsize,\n"
+"        exp=sys.maxsize - 1)\n"
+"--\n"
+"\n"
+"\n"
+"\n"
+"This docstring has a valid signature with parameters,\n"
+"and the parameters take defaults of varying types."
+);
+
+/* This is here to provide a docstring for test_descr. */
+static PyObject *
+test_with_docstring(PyObject *self, PyObject *Py_UNUSED(ignored))
+{
+    Py_RETURN_NONE;
+}
+
+static PyMethodDef test_methods[] = {
+    {"docstring_empty",
+        (PyCFunction)test_with_docstring, METH_NOARGS,
+        docstring_empty},
+    {"docstring_no_signature",
+        (PyCFunction)test_with_docstring, METH_NOARGS,
+        docstring_no_signature},
+    {"docstring_with_invalid_signature",
+        (PyCFunction)test_with_docstring, METH_NOARGS,
+        docstring_with_invalid_signature},
+    {"docstring_with_invalid_signature2",
+        (PyCFunction)test_with_docstring, METH_NOARGS,
+        docstring_with_invalid_signature2},
+    {"docstring_with_signature",
+        (PyCFunction)test_with_docstring, METH_NOARGS,
+        docstring_with_signature},
+    {"docstring_with_signature_and_extra_newlines",
+        (PyCFunction)test_with_docstring, METH_NOARGS,
+        docstring_with_signature_and_extra_newlines},
+    {"docstring_with_signature_but_no_doc",
+        (PyCFunction)test_with_docstring, METH_NOARGS,
+        docstring_with_signature_but_no_doc},
+    {"docstring_with_signature_with_defaults",
+        (PyCFunction)test_with_docstring, METH_NOARGS,
+        docstring_with_signature_with_defaults},
+    {"no_docstring",
+        (PyCFunction)test_with_docstring, METH_NOARGS},
+    {"test_with_docstring",
+        test_with_docstring,              METH_NOARGS,
+        PyDoc_STR("This is a pretty normal docstring.")},
+    {NULL},
+};
+
+int
+_PyTestCapi_Init_Docstring(PyObject *mod)
+{
+    if (PyModule_AddFunctions(mod, test_methods) < 0) {
+        return -1;
+    }
+    return 0;
+}