mirror of https://github.com/python/cpython
558 lines
18 KiB
C
558 lines
18 KiB
C
#include "parts.h"
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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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PyErr_Format(PyExc_AssertionError, "%s: %s", test_name, msg);
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return NULL;
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}
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/* Tests of PyLong_{As, From}{Unsigned,}Long(), and
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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 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, PyObject *Py_UNUSED(ignored))
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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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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 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, PyObject *args)
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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 PyLong_AsLongAndOverflow API. General conversion to PY_LONG
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is tested by test_long_api_inner. This test will concentrate on proper
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handling of overflow.
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*/
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static PyObject *
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test_long_and_overflow(PyObject *self, PyObject *Py_UNUSED(ignored))
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{
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PyObject *num, *one, *temp;
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long value;
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int overflow;
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/* Test that overflow is set properly for a large value. */
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/* num is a number larger than LONG_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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overflow = 1234;
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value = PyLong_AsLongAndOverflow(num, &overflow);
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Py_DECREF(num);
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if (value == -1 && PyErr_Occurred())
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return NULL;
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if (value != -1)
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return raiseTestError("test_long_and_overflow",
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"return value was not set to -1");
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if (overflow != 1)
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return raiseTestError("test_long_and_overflow",
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"overflow was not set to 1");
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/* Same again, with num = LONG_MAX + 1 */
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num = PyLong_FromLong(LONG_MAX);
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if (num == NULL)
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return NULL;
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one = PyLong_FromLong(1L);
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if (one == NULL) {
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Py_DECREF(num);
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return NULL;
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}
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temp = PyNumber_Add(num, one);
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Py_DECREF(one);
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Py_SETREF(num, temp);
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if (num == NULL)
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return NULL;
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overflow = 0;
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value = PyLong_AsLongAndOverflow(num, &overflow);
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Py_DECREF(num);
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if (value == -1 && PyErr_Occurred())
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return NULL;
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if (value != -1)
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return raiseTestError("test_long_and_overflow",
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"return value was not set to -1");
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if (overflow != 1)
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return raiseTestError("test_long_and_overflow",
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"overflow was not set to 1");
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/* Test that overflow is set properly for a large negative value. */
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/* num is a number smaller than LONG_MIN 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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overflow = 1234;
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value = PyLong_AsLongAndOverflow(num, &overflow);
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Py_DECREF(num);
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if (value == -1 && PyErr_Occurred())
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return NULL;
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if (value != -1)
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return raiseTestError("test_long_and_overflow",
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"return value was not set to -1");
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if (overflow != -1)
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return raiseTestError("test_long_and_overflow",
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"overflow was not set to -1");
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/* Same again, with num = LONG_MIN - 1 */
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num = PyLong_FromLong(LONG_MIN);
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if (num == NULL)
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return NULL;
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one = PyLong_FromLong(1L);
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if (one == NULL) {
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Py_DECREF(num);
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return NULL;
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}
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temp = PyNumber_Subtract(num, one);
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Py_DECREF(one);
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Py_SETREF(num, temp);
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if (num == NULL)
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return NULL;
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overflow = 0;
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value = PyLong_AsLongAndOverflow(num, &overflow);
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Py_DECREF(num);
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if (value == -1 && PyErr_Occurred())
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return NULL;
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if (value != -1)
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return raiseTestError("test_long_and_overflow",
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"return value was not set to -1");
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if (overflow != -1)
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return raiseTestError("test_long_and_overflow",
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"overflow was not set to -1");
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/* Test that overflow is cleared properly for small values. */
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num = PyLong_FromString("FF", NULL, 16);
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if (num == NULL)
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return NULL;
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overflow = 1234;
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value = PyLong_AsLongAndOverflow(num, &overflow);
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Py_DECREF(num);
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if (value == -1 && PyErr_Occurred())
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return NULL;
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if (value != 0xFF)
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return raiseTestError("test_long_and_overflow",
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"expected return value 0xFF");
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if (overflow != 0)
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return raiseTestError("test_long_and_overflow",
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"overflow was not cleared");
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num = PyLong_FromString("-FF", NULL, 16);
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if (num == NULL)
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return NULL;
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overflow = 0;
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value = PyLong_AsLongAndOverflow(num, &overflow);
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Py_DECREF(num);
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if (value == -1 && PyErr_Occurred())
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return NULL;
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if (value != -0xFF)
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return raiseTestError("test_long_and_overflow",
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"expected return value 0xFF");
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if (overflow != 0)
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return raiseTestError("test_long_and_overflow",
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"overflow was set incorrectly");
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num = PyLong_FromLong(LONG_MAX);
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if (num == NULL)
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return NULL;
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overflow = 1234;
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value = PyLong_AsLongAndOverflow(num, &overflow);
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Py_DECREF(num);
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if (value == -1 && PyErr_Occurred())
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return NULL;
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if (value != LONG_MAX)
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return raiseTestError("test_long_and_overflow",
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"expected return value LONG_MAX");
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if (overflow != 0)
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return raiseTestError("test_long_and_overflow",
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"overflow was not cleared");
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num = PyLong_FromLong(LONG_MIN);
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if (num == NULL)
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return NULL;
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overflow = 0;
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value = PyLong_AsLongAndOverflow(num, &overflow);
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Py_DECREF(num);
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if (value == -1 && PyErr_Occurred())
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return NULL;
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if (value != LONG_MIN)
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return raiseTestError("test_long_and_overflow",
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"expected return value LONG_MIN");
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if (overflow != 0)
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return raiseTestError("test_long_and_overflow",
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"overflow was not cleared");
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Py_RETURN_NONE;
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}
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/* Test the PyLong_AsLongLongAndOverflow API. General conversion to
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long long is tested by test_long_api_inner. This test will
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concentrate on proper handling of overflow.
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*/
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static PyObject *
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test_long_long_and_overflow(PyObject *self, PyObject *Py_UNUSED(ignored))
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{
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PyObject *num, *one, *temp;
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long long value;
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int overflow;
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/* Test that overflow is set properly for a large value. */
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/* num is a number larger than LLONG_MAX on a typical machine. */
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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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overflow = 1234;
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value = PyLong_AsLongLongAndOverflow(num, &overflow);
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Py_DECREF(num);
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if (value == -1 && PyErr_Occurred())
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return NULL;
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if (value != -1)
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return raiseTestError("test_long_long_and_overflow",
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"return value was not set to -1");
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if (overflow != 1)
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return raiseTestError("test_long_long_and_overflow",
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"overflow was not set to 1");
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/* Same again, with num = LLONG_MAX + 1 */
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num = PyLong_FromLongLong(LLONG_MAX);
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if (num == NULL)
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return NULL;
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one = PyLong_FromLong(1L);
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if (one == NULL) {
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Py_DECREF(num);
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return NULL;
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}
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temp = PyNumber_Add(num, one);
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Py_DECREF(one);
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Py_SETREF(num, temp);
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if (num == NULL)
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return NULL;
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overflow = 0;
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value = PyLong_AsLongLongAndOverflow(num, &overflow);
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Py_DECREF(num);
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if (value == -1 && PyErr_Occurred())
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return NULL;
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if (value != -1)
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return raiseTestError("test_long_long_and_overflow",
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"return value was not set to -1");
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if (overflow != 1)
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return raiseTestError("test_long_long_and_overflow",
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"overflow was not set to 1");
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/* Test that overflow is set properly for a large negative value. */
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/* num is a number smaller than LLONG_MIN on a typical platform */
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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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overflow = 1234;
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value = PyLong_AsLongLongAndOverflow(num, &overflow);
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Py_DECREF(num);
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if (value == -1 && PyErr_Occurred())
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return NULL;
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if (value != -1)
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return raiseTestError("test_long_long_and_overflow",
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"return value was not set to -1");
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if (overflow != -1)
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return raiseTestError("test_long_long_and_overflow",
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"overflow was not set to -1");
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/* Same again, with num = LLONG_MIN - 1 */
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num = PyLong_FromLongLong(LLONG_MIN);
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if (num == NULL)
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return NULL;
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one = PyLong_FromLong(1L);
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if (one == NULL) {
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Py_DECREF(num);
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return NULL;
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}
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temp = PyNumber_Subtract(num, one);
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Py_DECREF(one);
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Py_SETREF(num, temp);
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if (num == NULL)
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return NULL;
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overflow = 0;
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value = PyLong_AsLongLongAndOverflow(num, &overflow);
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Py_DECREF(num);
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if (value == -1 && PyErr_Occurred())
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return NULL;
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if (value != -1)
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return raiseTestError("test_long_long_and_overflow",
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"return value was not set to -1");
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if (overflow != -1)
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return raiseTestError("test_long_long_and_overflow",
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"overflow was not set to -1");
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/* Test that overflow is cleared properly for small values. */
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num = PyLong_FromString("FF", NULL, 16);
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if (num == NULL)
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return NULL;
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overflow = 1234;
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value = PyLong_AsLongLongAndOverflow(num, &overflow);
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Py_DECREF(num);
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if (value == -1 && PyErr_Occurred())
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return NULL;
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if (value != 0xFF)
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return raiseTestError("test_long_long_and_overflow",
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"expected return value 0xFF");
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if (overflow != 0)
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return raiseTestError("test_long_long_and_overflow",
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"overflow was not cleared");
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num = PyLong_FromString("-FF", NULL, 16);
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if (num == NULL)
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return NULL;
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overflow = 0;
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value = PyLong_AsLongLongAndOverflow(num, &overflow);
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Py_DECREF(num);
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if (value == -1 && PyErr_Occurred())
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return NULL;
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if (value != -0xFF)
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return raiseTestError("test_long_long_and_overflow",
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"expected return value 0xFF");
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if (overflow != 0)
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return raiseTestError("test_long_long_and_overflow",
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"overflow was set incorrectly");
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num = PyLong_FromLongLong(LLONG_MAX);
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if (num == NULL)
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return NULL;
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overflow = 1234;
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value = PyLong_AsLongLongAndOverflow(num, &overflow);
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Py_DECREF(num);
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if (value == -1 && PyErr_Occurred())
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return NULL;
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if (value != LLONG_MAX)
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return raiseTestError("test_long_long_and_overflow",
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"expected return value LLONG_MAX");
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if (overflow != 0)
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return raiseTestError("test_long_long_and_overflow",
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"overflow was not cleared");
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num = PyLong_FromLongLong(LLONG_MIN);
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if (num == NULL)
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return NULL;
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overflow = 0;
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value = PyLong_AsLongLongAndOverflow(num, &overflow);
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Py_DECREF(num);
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if (value == -1 && PyErr_Occurred())
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return NULL;
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if (value != LLONG_MIN)
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return raiseTestError("test_long_long_and_overflow",
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"expected return value LLONG_MIN");
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if (overflow != 0)
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return raiseTestError("test_long_long_and_overflow",
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"overflow was not cleared");
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Py_RETURN_NONE;
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}
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/* Test the PyLong_As{Size,Ssize}_t API. At present this just tests that
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non-integer arguments are handled correctly. It should be extended to
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test overflow handling.
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*/
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static PyObject *
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test_long_as_size_t(PyObject *self, PyObject *Py_UNUSED(ignored))
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{
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size_t out_u;
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Py_ssize_t out_s;
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Py_INCREF(Py_None);
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out_u = PyLong_AsSize_t(Py_None);
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if (out_u != (size_t)-1 || !PyErr_Occurred())
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return raiseTestError("test_long_as_size_t",
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"PyLong_AsSize_t(None) didn't complain");
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if (!PyErr_ExceptionMatches(PyExc_TypeError))
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return raiseTestError("test_long_as_size_t",
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"PyLong_AsSize_t(None) raised "
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"something other than TypeError");
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PyErr_Clear();
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out_s = PyLong_AsSsize_t(Py_None);
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if (out_s != (Py_ssize_t)-1 || !PyErr_Occurred())
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return raiseTestError("test_long_as_size_t",
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"PyLong_AsSsize_t(None) didn't complain");
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if (!PyErr_ExceptionMatches(PyExc_TypeError))
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return raiseTestError("test_long_as_size_t",
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"PyLong_AsSsize_t(None) raised "
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"something other than TypeError");
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PyErr_Clear();
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/* Py_INCREF(Py_None) omitted - we already have a reference to it. */
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return Py_None;
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}
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static PyObject *
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test_long_as_unsigned_long_long_mask(PyObject *self,
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PyObject *Py_UNUSED(ignored))
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{
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unsigned long long res = PyLong_AsUnsignedLongLongMask(NULL);
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if (res != (unsigned long long)-1 || !PyErr_Occurred()) {
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return raiseTestError("test_long_as_unsigned_long_long_mask",
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"PyLong_AsUnsignedLongLongMask(NULL) didn't "
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"complain");
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}
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if (!PyErr_ExceptionMatches(PyExc_SystemError)) {
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return raiseTestError("test_long_as_unsigned_long_long_mask",
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"PyLong_AsUnsignedLongLongMask(NULL) raised "
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"something other than SystemError");
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}
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PyErr_Clear();
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Py_RETURN_NONE;
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}
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/* Test the PyLong_AsDouble API. At present this just tests that
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non-integer arguments are handled correctly.
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*/
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static PyObject *
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test_long_as_double(PyObject *self, PyObject *Py_UNUSED(ignored))
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{
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double out;
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Py_INCREF(Py_None);
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out = PyLong_AsDouble(Py_None);
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if (out != -1.0 || !PyErr_Occurred())
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return raiseTestError("test_long_as_double",
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"PyLong_AsDouble(None) didn't complain");
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if (!PyErr_ExceptionMatches(PyExc_TypeError))
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return raiseTestError("test_long_as_double",
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"PyLong_AsDouble(None) raised "
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"something other than TypeError");
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PyErr_Clear();
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/* Py_INCREF(Py_None) omitted - we already have a reference to it. */
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return Py_None;
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}
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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, PyObject *Py_UNUSED(ignored))
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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 int digit */
|
|
{-0x7fffL, 15, -1},
|
|
{0xffffL, 16, 1},
|
|
{-0xffffL, 16, -1},
|
|
{0xfffffffL, 28, 1},
|
|
{-0xfffffffL, 28, -1}};
|
|
size_t i;
|
|
|
|
for (i = 0; i < Py_ARRAY_LENGTH(testcases); ++i) {
|
|
size_t nbits;
|
|
int sign;
|
|
PyObject *plong;
|
|
|
|
plong = PyLong_FromLong(testcases[i].input);
|
|
if (plong == NULL)
|
|
return NULL;
|
|
nbits = _PyLong_NumBits(plong);
|
|
sign = _PyLong_Sign(plong);
|
|
|
|
Py_DECREF(plong);
|
|
if (nbits != testcases[i].nbits)
|
|
return raiseTestError("test_long_numbits",
|
|
"wrong result for _PyLong_NumBits");
|
|
if (sign != testcases[i].sign)
|
|
return raiseTestError("test_long_numbits",
|
|
"wrong result for _PyLong_Sign");
|
|
}
|
|
Py_RETURN_NONE;
|
|
}
|
|
|
|
static PyMethodDef test_methods[] = {
|
|
{"test_long_and_overflow", test_long_and_overflow, METH_NOARGS},
|
|
{"test_long_api", test_long_api, METH_NOARGS},
|
|
{"test_long_as_double", test_long_as_double, METH_NOARGS},
|
|
{"test_long_as_size_t", test_long_as_size_t, METH_NOARGS},
|
|
{"test_long_as_unsigned_long_long_mask", test_long_as_unsigned_long_long_mask, METH_NOARGS},
|
|
{"test_long_long_and_overflow",test_long_long_and_overflow, METH_NOARGS},
|
|
{"test_long_numbits", test_long_numbits, METH_NOARGS},
|
|
{"test_longlong_api", test_longlong_api, METH_NOARGS},
|
|
{NULL},
|
|
};
|
|
|
|
int
|
|
_PyTestCapi_Init_Long(PyObject *mod)
|
|
{
|
|
if (PyModule_AddFunctions(mod, test_methods) < 0) {
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|