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/*
* C Extension module to test Python interpreter C APIs.
*
* The 'test_*' functions exported by this module are run as part of the
* standard Python regression test, via Lib/test/test_capi.py.
*/
#include "Python.h"
static PyObject *TestError; /* set to exception object in init */
/* Raise TestError with test_name + ": " + msg, and return NULL. */
static PyObject *
raiseTestError(const char* test_name, const char* msg)
{
char buf[2048];
if (strlen(test_name) + strlen(msg) > sizeof(buf) - 50)
PyErr_SetString(TestError, "internal error msg too large");
else {
sprintf(buf, "%s: %s", test_name, msg);
PyErr_SetString(TestError, buf);
}
return NULL;
}
/* Test #defines from config.h (particularly the SIZEOF_* defines).
The ones derived from autoconf on the UNIX-like OSes can be relied
upon (in the absence of sloppy cross-compiling), but the Windows
platforms have these hardcoded. Better safe than sorry.
*/
static PyObject*
sizeof_error(const char* fatname, const char* typename,
int expected, int got)
{
char buf[1024];
sprintf(buf, "%s #define == %d but sizeof(%s) == %d",
fatname, expected, typename, got);
PyErr_SetString(TestError, buf);
return (PyObject*)NULL;
}
static PyObject*
test_config(PyObject *self, PyObject *args)
{
if (!PyArg_ParseTuple(args, ":test_config"))
return NULL;
#define CHECK_SIZEOF(FATNAME, TYPE) \
if (FATNAME != sizeof(TYPE)) \
return sizeof_error(#FATNAME, #TYPE, FATNAME, sizeof(TYPE))
CHECK_SIZEOF(SIZEOF_INT, int);
CHECK_SIZEOF(SIZEOF_LONG, long);
CHECK_SIZEOF(SIZEOF_VOID_P, void*);
CHECK_SIZEOF(SIZEOF_TIME_T, time_t);
#ifdef HAVE_LONG_LONG
CHECK_SIZEOF(SIZEOF_LONG_LONG, LONG_LONG);
#endif
#undef CHECK_SIZEOF
Py_INCREF(Py_None);
return Py_None;
}
static PyObject*
test_list_api(PyObject *self, PyObject *args)
{
PyObject* list;
int i;
if (!PyArg_ParseTuple(args, ":test_list_api"))
return NULL;
/* SF bug 132008: PyList_Reverse segfaults */
#define NLIST 30
list = PyList_New(NLIST);
if (list == (PyObject*)NULL)
return (PyObject*)NULL;
/* list = range(NLIST) */
for (i = 0; i < NLIST; ++i) {
PyObject* anint = PyInt_FromLong(i);
if (anint == (PyObject*)NULL) {
Py_DECREF(list);
return (PyObject*)NULL;
}
PyList_SET_ITEM(list, i, anint);
}
/* list.reverse(), via PyList_Reverse() */
i = PyList_Reverse(list); /* should not blow up! */
if (i != 0) {
Py_DECREF(list);
return (PyObject*)NULL;
}
/* Check that list == range(29, -1, -1) now */
for (i = 0; i < NLIST; ++i) {
PyObject* anint = PyList_GET_ITEM(list, i);
if (PyInt_AS_LONG(anint) != NLIST-1-i) {
PyErr_SetString(TestError,
"test_list_api: reverse screwed up");
Py_DECREF(list);
return (PyObject*)NULL;
}
}
Py_DECREF(list);
#undef NLIST
Py_INCREF(Py_None);
return Py_None;
}
static int
test_dict_inner(int count)
{
int pos = 0, iterations = 0, i;
PyObject *dict = PyDict_New();
PyObject *v, *k;
if (dict == NULL)
return -1;
for (i = 0; i < count; i++) {
v = PyInt_FromLong(i);
PyDict_SetItem(dict, v, v);
Py_DECREF(v);
}
while (PyDict_Next(dict, &pos, &k, &v)) {
PyObject *o;
iterations++;
i = PyInt_AS_LONG(v) + 1;
o = PyInt_FromLong(i);
if (o == NULL)
return -1;
if (PyDict_SetItem(dict, k, o) < 0) {
Py_DECREF(o);
return -1;
}
Py_DECREF(o);
}
Py_DECREF(dict);
if (iterations != count) {
PyErr_SetString(
TestError,
"test_dict_iteration: dict iteration went wrong ");
return -1;
} else {
return 0;
}
}
static PyObject*
test_dict_iteration(PyObject* self, PyObject* args)
{
int i;
if (!PyArg_ParseTuple(args, ":test_dict_iteration"))
return NULL;
for (i = 0; i < 200; i++) {
if (test_dict_inner(i) < 0) {
return NULL;
}
}
Py_INCREF(Py_None);
return Py_None;
}
#ifdef HAVE_LONG_LONG
/* Basic sanity checks for PyLong_{As, From}{Unsigned,}LongLong(). */
static PyObject *
test_longlong_api(PyObject* self, PyObject* args)
{
/* unsigned LONG_LONG uinput, uoutput; */
LONG_LONG input, output;
PyObject *pyresult;
if (!PyArg_ParseTuple(args, ":test_longlong_api"))
return NULL;
input = 0;
pyresult = PyLong_FromLongLong(input);
if (pyresult == NULL)
return raiseTestError("test_longlong_api",
"unexpected null result");
output = PyLong_AsLongLong(pyresult);
if (output == (LONG_LONG)-1 && PyErr_Occurred())
return raiseTestError("test_longlong_api",
"unexpected -1 result");
if (output != input)
return raiseTestError("test_longlong_api",
"output != input");
Py_DECREF(pyresult);
Py_INCREF(Py_None);
return Py_None;
}
#endif
static PyMethodDef TestMethods[] = {
{"test_config", test_config, METH_VARARGS},
{"test_list_api", test_list_api, METH_VARARGS},
{"test_dict_iteration", test_dict_iteration, METH_VARARGS},
#ifdef HAVE_LONG_LONG
{"test_longlong_api", test_longlong_api, METH_VARARGS},
#endif
{NULL, NULL} /* sentinel */
};
DL_EXPORT(void)
init_testcapi(void)
{
PyObject *m, *d;
m = Py_InitModule("_testcapi", TestMethods);
TestError = PyErr_NewException("_testcapi.error", NULL, NULL);
d = PyModule_GetDict(m);
PyDict_SetItemString(d, "error", TestError);
}
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