mirror of
https://github.com/python/cpython.git
synced 2024-11-28 04:15:11 +08:00
643 lines
16 KiB
C
643 lines
16 KiB
C
/*
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* C Extension module to test Python interpreter C APIs.
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*
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* The 'test_*' functions exported by this module are run as part of the
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* standard Python regression test, via Lib/test/test_capi.py.
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*/
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#include "Python.h"
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#ifdef WITH_THREAD
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#include "pythread.h"
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#endif /* WITH_THREAD */
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static PyObject *TestError; /* set to exception object in init */
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/* Raise TestError with test_name + ": " + msg, and return NULL. */
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static PyObject *
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raiseTestError(const char* test_name, const char* msg)
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{
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char buf[2048];
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if (strlen(test_name) + strlen(msg) > sizeof(buf) - 50)
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PyErr_SetString(TestError, "internal error msg too large");
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else {
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PyOS_snprintf(buf, sizeof(buf), "%s: %s", test_name, msg);
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PyErr_SetString(TestError, buf);
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}
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return NULL;
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}
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/* Test #defines from pyconfig.h (particularly the SIZEOF_* defines).
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The ones derived from autoconf on the UNIX-like OSes can be relied
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upon (in the absence of sloppy cross-compiling), but the Windows
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platforms have these hardcoded. Better safe than sorry.
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*/
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static PyObject*
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sizeof_error(const char* fatname, const char* typename,
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int expected, int got)
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{
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char buf[1024];
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PyOS_snprintf(buf, sizeof(buf),
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"%.200s #define == %d but sizeof(%.200s) == %d",
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fatname, expected, typename, got);
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PyErr_SetString(TestError, buf);
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return (PyObject*)NULL;
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}
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static PyObject*
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test_config(PyObject *self)
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{
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#define CHECK_SIZEOF(FATNAME, TYPE) \
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if (FATNAME != sizeof(TYPE)) \
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return sizeof_error(#FATNAME, #TYPE, FATNAME, sizeof(TYPE))
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CHECK_SIZEOF(SIZEOF_SHORT, short);
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CHECK_SIZEOF(SIZEOF_INT, int);
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CHECK_SIZEOF(SIZEOF_LONG, long);
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CHECK_SIZEOF(SIZEOF_VOID_P, void*);
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CHECK_SIZEOF(SIZEOF_TIME_T, time_t);
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#ifdef HAVE_LONG_LONG
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CHECK_SIZEOF(SIZEOF_LONG_LONG, PY_LONG_LONG);
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#endif
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#undef CHECK_SIZEOF
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyObject*
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test_list_api(PyObject *self)
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{
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PyObject* list;
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int i;
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/* SF bug 132008: PyList_Reverse segfaults */
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#define NLIST 30
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list = PyList_New(NLIST);
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if (list == (PyObject*)NULL)
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return (PyObject*)NULL;
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/* list = range(NLIST) */
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for (i = 0; i < NLIST; ++i) {
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PyObject* anint = PyInt_FromLong(i);
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if (anint == (PyObject*)NULL) {
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Py_DECREF(list);
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return (PyObject*)NULL;
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}
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PyList_SET_ITEM(list, i, anint);
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}
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/* list.reverse(), via PyList_Reverse() */
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i = PyList_Reverse(list); /* should not blow up! */
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if (i != 0) {
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Py_DECREF(list);
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return (PyObject*)NULL;
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}
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/* Check that list == range(29, -1, -1) now */
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for (i = 0; i < NLIST; ++i) {
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PyObject* anint = PyList_GET_ITEM(list, i);
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if (PyInt_AS_LONG(anint) != NLIST-1-i) {
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PyErr_SetString(TestError,
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"test_list_api: reverse screwed up");
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Py_DECREF(list);
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return (PyObject*)NULL;
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}
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}
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Py_DECREF(list);
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#undef NLIST
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Py_INCREF(Py_None);
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return Py_None;
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}
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static int
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test_dict_inner(int count)
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{
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int pos = 0, iterations = 0, i;
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PyObject *dict = PyDict_New();
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PyObject *v, *k;
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if (dict == NULL)
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return -1;
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for (i = 0; i < count; i++) {
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v = PyInt_FromLong(i);
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PyDict_SetItem(dict, v, v);
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Py_DECREF(v);
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}
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while (PyDict_Next(dict, &pos, &k, &v)) {
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PyObject *o;
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iterations++;
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i = PyInt_AS_LONG(v) + 1;
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o = PyInt_FromLong(i);
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if (o == NULL)
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return -1;
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if (PyDict_SetItem(dict, k, o) < 0) {
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Py_DECREF(o);
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return -1;
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}
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Py_DECREF(o);
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}
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Py_DECREF(dict);
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if (iterations != count) {
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PyErr_SetString(
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TestError,
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"test_dict_iteration: dict iteration went wrong ");
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return -1;
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} else {
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return 0;
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}
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}
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static PyObject*
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test_dict_iteration(PyObject* self)
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{
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int i;
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for (i = 0; i < 200; i++) {
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if (test_dict_inner(i) < 0) {
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return NULL;
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}
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}
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Py_INCREF(Py_None);
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return Py_None;
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}
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/* Tests of PyLong_{As, From}{Unsigned,}Long(), and (#ifdef HAVE_LONG_LONG)
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PyLong_{As, From}{Unsigned,}LongLong().
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Note that the meat of the test is contained in testcapi_long.h.
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This is revolting, but delicate code duplication is worse: "almost
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exactly the same" code is needed to test PY_LONG_LONG, but the ubiquitous
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dependence on type names makes it impossible to use a parameterized
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function. A giant macro would be even worse than this. A C++ template
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would be perfect.
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The "report an error" functions are deliberately not part of the #include
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file: if the test fails, you can set a breakpoint in the appropriate
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error function directly, and crawl back from there in the debugger.
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*/
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#define UNBIND(X) Py_DECREF(X); (X) = NULL
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static PyObject *
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raise_test_long_error(const char* msg)
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{
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return raiseTestError("test_long_api", msg);
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}
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#define TESTNAME test_long_api_inner
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#define TYPENAME long
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#define F_S_TO_PY PyLong_FromLong
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#define F_PY_TO_S PyLong_AsLong
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#define F_U_TO_PY PyLong_FromUnsignedLong
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#define F_PY_TO_U PyLong_AsUnsignedLong
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#include "testcapi_long.h"
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static PyObject *
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test_long_api(PyObject* self)
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{
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return TESTNAME(raise_test_long_error);
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}
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#undef TESTNAME
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#undef TYPENAME
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#undef F_S_TO_PY
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#undef F_PY_TO_S
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#undef F_U_TO_PY
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#undef F_PY_TO_U
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#ifdef HAVE_LONG_LONG
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static PyObject *
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raise_test_longlong_error(const char* msg)
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{
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return raiseTestError("test_longlong_api", msg);
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}
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#define TESTNAME test_longlong_api_inner
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#define TYPENAME PY_LONG_LONG
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#define F_S_TO_PY PyLong_FromLongLong
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#define F_PY_TO_S PyLong_AsLongLong
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#define F_U_TO_PY PyLong_FromUnsignedLongLong
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#define F_PY_TO_U PyLong_AsUnsignedLongLong
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#include "testcapi_long.h"
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static PyObject *
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test_longlong_api(PyObject* self)
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{
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return TESTNAME(raise_test_longlong_error);
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}
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#undef TESTNAME
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#undef TYPENAME
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#undef F_S_TO_PY
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#undef F_PY_TO_S
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#undef F_U_TO_PY
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#undef F_PY_TO_U
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/* Test the L code for PyArg_ParseTuple. This should deliver a PY_LONG_LONG
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for both long and int arguments. The test may leak a little memory if
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it fails.
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*/
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static PyObject *
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test_L_code(PyObject *self)
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{
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PyObject *tuple, *num;
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PY_LONG_LONG value;
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tuple = PyTuple_New(1);
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if (tuple == NULL)
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return NULL;
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num = PyLong_FromLong(42);
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if (num == NULL)
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return NULL;
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PyTuple_SET_ITEM(tuple, 0, num);
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value = -1;
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if (PyArg_ParseTuple(tuple, "L:test_L_code", &value) < 0)
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return NULL;
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if (value != 42)
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return raiseTestError("test_L_code",
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"L code returned wrong value for long 42");
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Py_DECREF(num);
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num = PyInt_FromLong(42);
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if (num == NULL)
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return NULL;
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PyTuple_SET_ITEM(tuple, 0, num);
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value = -1;
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if (PyArg_ParseTuple(tuple, "L:test_L_code", &value) < 0)
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return NULL;
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if (value != 42)
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return raiseTestError("test_L_code",
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"L code returned wrong value for int 42");
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Py_DECREF(tuple);
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Py_INCREF(Py_None);
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return Py_None;
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}
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#endif /* ifdef HAVE_LONG_LONG */
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/* Functions to call PyArg_ParseTuple with integer format codes,
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and return the result.
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*/
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static PyObject *
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getargs_b(PyObject *self, PyObject *args)
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{
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unsigned char value;
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if (!PyArg_ParseTuple(args, "b", &value))
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return NULL;
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return PyLong_FromUnsignedLong((unsigned long)value);
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}
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static PyObject *
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getargs_B(PyObject *self, PyObject *args)
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{
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unsigned char value;
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if (!PyArg_ParseTuple(args, "B", &value))
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return NULL;
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return PyLong_FromUnsignedLong((unsigned long)value);
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}
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static PyObject *
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getargs_H(PyObject *self, PyObject *args)
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{
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unsigned short value;
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if (!PyArg_ParseTuple(args, "H", &value))
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return NULL;
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return PyLong_FromUnsignedLong((unsigned long)value);
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}
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static PyObject *
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getargs_I(PyObject *self, PyObject *args)
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{
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unsigned int value;
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if (!PyArg_ParseTuple(args, "I", &value))
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return NULL;
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return PyLong_FromUnsignedLong((unsigned long)value);
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}
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static PyObject *
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getargs_k(PyObject *self, PyObject *args)
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{
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unsigned long value;
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if (!PyArg_ParseTuple(args, "k", &value))
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return NULL;
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return PyLong_FromUnsignedLong(value);
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}
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static PyObject *
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getargs_i(PyObject *self, PyObject *args)
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{
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int value;
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if (!PyArg_ParseTuple(args, "i", &value))
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return NULL;
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return PyLong_FromLong((long)value);
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}
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static PyObject *
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getargs_l(PyObject *self, PyObject *args)
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{
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long value;
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if (!PyArg_ParseTuple(args, "l", &value))
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return NULL;
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return PyLong_FromLong(value);
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}
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#ifdef HAVE_LONG_LONG
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static PyObject *
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getargs_L(PyObject *self, PyObject *args)
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{
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PY_LONG_LONG value;
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if (!PyArg_ParseTuple(args, "L", &value))
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return NULL;
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return PyLong_FromLongLong(value);
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}
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static PyObject *
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getargs_K(PyObject *self, PyObject *args)
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{
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unsigned PY_LONG_LONG value;
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if (!PyArg_ParseTuple(args, "K", &value))
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return NULL;
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return PyLong_FromUnsignedLongLong(value);
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}
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#endif
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/* This function not only tests the 'k' getargs code, but also the
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PyInt_AsUnsignedLongMask() and PyInt_AsUnsignedLongMask() functions. */
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static PyObject *
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test_k_code(PyObject *self)
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{
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PyObject *tuple, *num;
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unsigned long value;
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tuple = PyTuple_New(1);
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if (tuple == NULL)
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return NULL;
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/* a number larger than ULONG_MAX even on 64-bit platforms */
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num = PyLong_FromString("FFFFFFFFFFFFFFFFFFFFFFFF", NULL, 16);
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if (num == NULL)
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return NULL;
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value = PyInt_AsUnsignedLongMask(num);
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if (value != ULONG_MAX)
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return raiseTestError("test_k_code",
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"PyInt_AsUnsignedLongMask() returned wrong value for long 0xFFF...FFF");
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PyTuple_SET_ITEM(tuple, 0, num);
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value = -1;
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if (PyArg_ParseTuple(tuple, "k:test_k_code", &value) < 0)
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return NULL;
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if (value != ULONG_MAX)
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return raiseTestError("test_k_code",
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"k code returned wrong value for long 0xFFF...FFF");
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Py_DECREF(num);
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num = PyLong_FromString("-FFFFFFFF000000000000000042", NULL, 16);
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if (num == NULL)
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return NULL;
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value = PyInt_AsUnsignedLongMask(num);
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if (value != (unsigned long)-0x42)
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return raiseTestError("test_k_code",
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"PyInt_AsUnsignedLongMask() returned wrong value for long 0xFFF...FFF");
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PyTuple_SET_ITEM(tuple, 0, num);
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value = -1;
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if (PyArg_ParseTuple(tuple, "k:test_k_code", &value) < 0)
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return NULL;
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if (value != (unsigned long)-0x42)
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return raiseTestError("test_k_code",
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"k code returned wrong value for long -0xFFF..000042");
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Py_DECREF(tuple);
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Py_INCREF(Py_None);
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return Py_None;
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}
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#ifdef Py_USING_UNICODE
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/* Test the u and u# codes for PyArg_ParseTuple. May leak memory in case
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of an error.
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*/
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static PyObject *
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test_u_code(PyObject *self)
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{
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PyObject *tuple, *obj;
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Py_UNICODE *value;
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int len;
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tuple = PyTuple_New(1);
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if (tuple == NULL)
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return NULL;
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obj = PyUnicode_Decode("test", strlen("test"),
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"ascii", NULL);
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if (obj == NULL)
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return NULL;
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PyTuple_SET_ITEM(tuple, 0, obj);
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value = 0;
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if (PyArg_ParseTuple(tuple, "u:test_u_code", &value) < 0)
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return NULL;
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if (value != PyUnicode_AS_UNICODE(obj))
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return raiseTestError("test_u_code",
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"u code returned wrong value for u'test'");
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value = 0;
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if (PyArg_ParseTuple(tuple, "u#:test_u_code", &value, &len) < 0)
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return NULL;
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if (value != PyUnicode_AS_UNICODE(obj) ||
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len != PyUnicode_GET_SIZE(obj))
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return raiseTestError("test_u_code",
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"u# code returned wrong values for u'test'");
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Py_DECREF(tuple);
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Py_INCREF(Py_None);
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return Py_None;
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}
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#endif
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/* Simple test of _PyLong_NumBits and _PyLong_Sign. */
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static PyObject *
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test_long_numbits(PyObject *self)
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{
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struct triple {
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long input;
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size_t nbits;
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int sign;
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} testcases[] = {{0, 0, 0},
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{1L, 1, 1},
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{-1L, 1, -1},
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{2L, 2, 1},
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{-2L, 2, -1},
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{3L, 2, 1},
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{-3L, 2, -1},
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{4L, 3, 1},
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{-4L, 3, -1},
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{0x7fffL, 15, 1}, /* one Python long digit */
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{-0x7fffL, 15, -1},
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{0xffffL, 16, 1},
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{-0xffffL, 16, -1},
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{0xfffffffL, 28, 1},
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{-0xfffffffL, 28, -1}};
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int i;
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for (i = 0; i < sizeof(testcases) / sizeof(struct triple); ++i) {
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PyObject *plong = PyLong_FromLong(testcases[i].input);
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size_t nbits = _PyLong_NumBits(plong);
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int sign = _PyLong_Sign(plong);
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Py_DECREF(plong);
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if (nbits != testcases[i].nbits)
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return raiseTestError("test_long_numbits",
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"wrong result for _PyLong_NumBits");
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if (sign != testcases[i].sign)
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return raiseTestError("test_long_numbits",
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"wrong result for _PyLong_Sign");
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}
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyObject *
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raise_exception(PyObject *self, PyObject *args)
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{
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PyObject *exc;
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PyObject *exc_args, *v;
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int num_args, i;
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if (!PyArg_ParseTuple(args, "Oi:raise_exception",
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&exc, &num_args))
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return NULL;
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exc_args = PyTuple_New(num_args);
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if (exc_args == NULL)
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return NULL;
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for (i = 0; i < num_args; ++i) {
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v = PyInt_FromLong(i);
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if (v == NULL) {
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Py_DECREF(exc_args);
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return NULL;
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}
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|
PyTuple_SET_ITEM(exc_args, i, v);
|
|
}
|
|
PyErr_SetObject(exc, exc_args);
|
|
return NULL;
|
|
}
|
|
|
|
#ifdef WITH_THREAD
|
|
|
|
void _make_call(void *callable)
|
|
{
|
|
PyObject *rc;
|
|
PyGILState_STATE s = PyGILState_Ensure();
|
|
rc = PyObject_CallFunction(callable, "");
|
|
Py_XDECREF(rc);
|
|
PyGILState_Release(s);
|
|
}
|
|
|
|
static PyObject *
|
|
test_thread_state(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *fn;
|
|
if (!PyArg_ParseTuple(args, "O:test_thread_state", &fn))
|
|
return NULL;
|
|
/* Ensure Python is setup for threading */
|
|
PyEval_InitThreads();
|
|
/* Start a new thread for our callback. */
|
|
PyThread_start_new_thread( _make_call, fn);
|
|
/* Make the callback with the thread lock held by this thread */
|
|
_make_call(fn);
|
|
/* Do it all again, but this time with the thread-lock released */
|
|
Py_BEGIN_ALLOW_THREADS
|
|
_make_call(fn);
|
|
Py_END_ALLOW_THREADS
|
|
/* And once more with and without a thread
|
|
XXX - should use a lock and work out exactly what we are trying
|
|
to test <wink>
|
|
*/
|
|
Py_BEGIN_ALLOW_THREADS
|
|
PyThread_start_new_thread( _make_call, fn);
|
|
_make_call(fn);
|
|
Py_END_ALLOW_THREADS
|
|
Py_INCREF(Py_None);
|
|
return Py_None;
|
|
}
|
|
#endif
|
|
|
|
static PyMethodDef TestMethods[] = {
|
|
{"raise_exception", raise_exception, METH_VARARGS},
|
|
{"test_config", (PyCFunction)test_config, METH_NOARGS},
|
|
{"test_list_api", (PyCFunction)test_list_api, METH_NOARGS},
|
|
{"test_dict_iteration", (PyCFunction)test_dict_iteration,METH_NOARGS},
|
|
{"test_long_api", (PyCFunction)test_long_api, METH_NOARGS},
|
|
{"test_long_numbits", (PyCFunction)test_long_numbits, METH_NOARGS},
|
|
{"test_k_code", (PyCFunction)test_k_code, METH_NOARGS},
|
|
|
|
{"getargs_b", (PyCFunction)getargs_b, METH_VARARGS},
|
|
{"getargs_B", (PyCFunction)getargs_B, METH_VARARGS},
|
|
{"getargs_H", (PyCFunction)getargs_H, METH_VARARGS},
|
|
{"getargs_I", (PyCFunction)getargs_I, METH_VARARGS},
|
|
{"getargs_k", (PyCFunction)getargs_k, METH_VARARGS},
|
|
{"getargs_i", (PyCFunction)getargs_i, METH_VARARGS},
|
|
{"getargs_l", (PyCFunction)getargs_l, METH_VARARGS},
|
|
#ifdef HAVE_LONG_LONG
|
|
{"getargs_L", (PyCFunction)getargs_L, METH_VARARGS},
|
|
{"getargs_K", (PyCFunction)getargs_K, METH_VARARGS},
|
|
{"test_longlong_api", (PyCFunction)test_longlong_api, METH_NOARGS},
|
|
{"test_L_code", (PyCFunction)test_L_code, METH_NOARGS},
|
|
#endif
|
|
#ifdef Py_USING_UNICODE
|
|
{"test_u_code", (PyCFunction)test_u_code, METH_NOARGS},
|
|
#endif
|
|
#ifdef WITH_THREAD
|
|
{"_test_thread_state", (PyCFunction)test_thread_state, METH_VARARGS},
|
|
#endif
|
|
{NULL, NULL} /* sentinel */
|
|
};
|
|
|
|
#define AddSym(d, n, f, v) {PyObject *o = f(v); PyDict_SetItemString(d, n, o); Py_DECREF(o);}
|
|
|
|
PyMODINIT_FUNC
|
|
init_testcapi(void)
|
|
{
|
|
PyObject *m;
|
|
|
|
m = Py_InitModule("_testcapi", TestMethods);
|
|
|
|
PyModule_AddObject(m, "UCHAR_MAX", PyInt_FromLong(UCHAR_MAX));
|
|
PyModule_AddObject(m, "USHRT_MAX", PyInt_FromLong(USHRT_MAX));
|
|
PyModule_AddObject(m, "UINT_MAX", PyLong_FromUnsignedLong(UINT_MAX));
|
|
PyModule_AddObject(m, "ULONG_MAX", PyLong_FromUnsignedLong(ULONG_MAX));
|
|
PyModule_AddObject(m, "INT_MIN", PyInt_FromLong(INT_MIN));
|
|
PyModule_AddObject(m, "LONG_MIN", PyInt_FromLong(LONG_MIN));
|
|
PyModule_AddObject(m, "INT_MAX", PyInt_FromLong(INT_MAX));
|
|
PyModule_AddObject(m, "LONG_MAX", PyInt_FromLong(LONG_MAX));
|
|
|
|
TestError = PyErr_NewException("_testcapi.error", NULL, NULL);
|
|
Py_INCREF(TestError);
|
|
PyModule_AddObject(m, "error", TestError);
|
|
}
|