summaryrefslogtreecommitdiffstats
path: root/Modules/_testcapimodule.c
blob: e8881dc250de844b8b4a80466222121d6b039314 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
/*
 * 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"

#ifdef WITH_THREAD
#include "pythread.h"
#endif /* WITH_THREAD */
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 {
		PyOS_snprintf(buf, sizeof(buf), "%s: %s", test_name, msg);
		PyErr_SetString(TestError, buf);
	}
	return NULL;
}

/* Test #defines from pyconfig.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];
	PyOS_snprintf(buf, sizeof(buf),
		"%.200s #define == %d but sizeof(%.200s) == %d",
		fatname, expected, typename, got);
	PyErr_SetString(TestError, buf);
	return (PyObject*)NULL;
}

static PyObject*
test_config(PyObject *self)
{
#define CHECK_SIZEOF(FATNAME, TYPE) \
	    if (FATNAME != sizeof(TYPE)) \
    	    	return sizeof_error(#FATNAME, #TYPE, FATNAME, sizeof(TYPE))

	CHECK_SIZEOF(SIZEOF_SHORT, short);
	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, PY_LONG_LONG);
#endif

#undef CHECK_SIZEOF

	Py_INCREF(Py_None);
	return Py_None;
}

static PyObject*
test_list_api(PyObject *self)
{
	PyObject* list;
	int i;

	/* 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)
{
	Py_ssize_t pos = 0, iterations = 0;
	int 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)
{
	int i;

	for (i = 0; i < 200; i++) {
		if (test_dict_inner(i) < 0) {
			return NULL;
		}
	}

	Py_INCREF(Py_None);
	return Py_None;
}


/* Tests of PyLong_{As, From}{Unsigned,}Long(), and (#ifdef HAVE_LONG_LONG)
   PyLong_{As, From}{Unsigned,}LongLong().

   Note that the meat of the test is contained in testcapi_long.h.
   This is revolting, but delicate code duplication is worse:  "almost
   exactly the same" code is needed to test PY_LONG_LONG, but the ubiquitous
   dependence on type names makes it impossible to use a parameterized
   function.  A giant macro would be even worse than this.  A C++ template
   would be perfect.

   The "report an error" functions are deliberately not part of the #include
   file:  if the test fails, you can set a breakpoint in the appropriate
   error function directly, and crawl back from there in the debugger.
*/

#define UNBIND(X)  Py_DECREF(X); (X) = NULL

static PyObject *
raise_test_long_error(const char* msg)
{
	return raiseTestError("test_long_api", msg);
}

#define TESTNAME	test_long_api_inner
#define TYPENAME	long
#define F_S_TO_PY	PyLong_FromLong
#define F_PY_TO_S	PyLong_AsLong
#define F_U_TO_PY	PyLong_FromUnsignedLong
#define F_PY_TO_U	PyLong_AsUnsignedLong

#include "testcapi_long.h"

static PyObject *
test_long_api(PyObject* self)
{
	return TESTNAME(raise_test_long_error);
}

#undef TESTNAME
#undef TYPENAME
#undef F_S_TO_PY
#undef F_PY_TO_S
#undef F_U_TO_PY
#undef F_PY_TO_U

#ifdef HAVE_LONG_LONG

static PyObject *
raise_test_longlong_error(const char* msg)
{
	return raiseTestError("test_longlong_api", msg);
}

#define TESTNAME	test_longlong_api_inner
#define TYPENAME	PY_LONG_LONG
#define F_S_TO_PY	PyLong_FromLongLong
#define F_PY_TO_S	PyLong_AsLongLong
#define F_U_TO_PY	PyLong_FromUnsignedLongLong
#define F_PY_TO_U	PyLong_AsUnsignedLongLong

#include "testcapi_long.h"

static PyObject *
test_longlong_api(PyObject* self, PyObject *args)
{
	return TESTNAME(raise_test_longlong_error);
}

#undef TESTNAME
#undef TYPENAME
#undef F_S_TO_PY
#undef F_PY_TO_S
#undef F_U_TO_PY
#undef F_PY_TO_U

/* Test the L code for PyArg_ParseTuple.  This should deliver a PY_LONG_LONG
   for both long and int arguments.  The test may leak a little memory if
   it fails.
*/
static PyObject *
test_L_code(PyObject *self)
{
	PyObject *tuple, *num;
	PY_LONG_LONG value;

        tuple = PyTuple_New(1);
        if (tuple == NULL)
        	return NULL;

        num = PyLong_FromLong(42);
        if (num == NULL)
        	return NULL;

        PyTuple_SET_ITEM(tuple, 0, num);

        value = -1;
        if (PyArg_ParseTuple(tuple, "L:test_L_code", &value) < 0)
        	return NULL;
        if (value != 42)
        	return raiseTestError("test_L_code",
			"L code returned wrong value for long 42");

	Py_DECREF(num);
        num = PyInt_FromLong(42);
        if (num == NULL)
        	return NULL;

        PyTuple_SET_ITEM(tuple, 0, num);

	value = -1;
        if (PyArg_ParseTuple(tuple, "L:test_L_code", &value) < 0)
        	return NULL;
        if (value != 42)
        	return raiseTestError("test_L_code",
			"L code returned wrong value for int 42");

	Py_DECREF(tuple);
	Py_INCREF(Py_None);
	return Py_None;
}

#endif	/* ifdef HAVE_LONG_LONG */

/* Functions to call PyArg_ParseTuple with integer format codes,
   and return the result.
*/
static PyObject *
getargs_b(PyObject *self, PyObject *args)
{
	unsigned char value;
	if (!PyArg_ParseTuple(args, "b", &value))
		return NULL;
	return PyLong_FromUnsignedLong((unsigned long)value);
}

static PyObject *
getargs_B(PyObject *self, PyObject *args)
{
	unsigned char value;
	if (!PyArg_ParseTuple(args, "B", &value))
		return NULL;
	return PyLong_FromUnsignedLong((unsigned long)value);
}

static PyObject *
getargs_H(PyObject *self, PyObject *args)
{
	unsigned short value;
	if (!PyArg_ParseTuple(args, "H", &value))
		return NULL;
	return PyLong_FromUnsignedLong((unsigned long)value);
}

static PyObject *
getargs_I(PyObject *self, PyObject *args)
{
	unsigned int value;
	if (!PyArg_ParseTuple(args, "I", &value))
		return NULL;
	return PyLong_FromUnsignedLong((unsigned long)value);
}

static PyObject *
getargs_k(PyObject *self, PyObject *args)
{
	unsigned long value;
	if (!PyArg_ParseTuple(args, "k", &value))
		return NULL;
	return PyLong_FromUnsignedLong(value);
}

static PyObject *
getargs_i(PyObject *self, PyObject *args)
{
	int value;
	if (!PyArg_ParseTuple(args, "i", &value))
		return NULL;
	return PyLong_FromLong((long)value);
}

static PyObject *
getargs_l(PyObject *self, PyObject *args)
{
	long value;
	if (!PyArg_ParseTuple(args, "l", &value))
		return NULL;
	return PyLong_FromLong(value);
}

static PyObject *
getargs_n(PyObject *self, PyObject *args)
{
	Py_ssize_t value;
	if (!PyArg_ParseTuple(args, "n", &value))
	return NULL;
	return PyInt_FromSsize_t(value);
}

#ifdef HAVE_LONG_LONG
static PyObject *
getargs_L(PyObject *self, PyObject *args)
{
	PY_LONG_LONG value;
	if (!PyArg_ParseTuple(args, "L", &value))
		return NULL;
	return PyLong_FromLongLong(value);
}

static PyObject *
getargs_K(PyObject *self, PyObject *args)
{
	unsigned PY_LONG_LONG value;
	if (!PyArg_ParseTuple(args, "K", &value))
		return NULL;
	return PyLong_FromUnsignedLongLong(value);
}
#endif

/* This function not only tests the 'k' getargs code, but also the
   PyInt_AsUnsignedLongMask() and PyInt_AsUnsignedLongMask() functions. */
static PyObject *
test_k_code(PyObject *self)
{
	PyObject *tuple, *num;
	unsigned long value;

        tuple = PyTuple_New(1);
        if (tuple == NULL)
        	return NULL;

	/* a number larger than ULONG_MAX even on 64-bit platforms */
        num = PyLong_FromString("FFFFFFFFFFFFFFFFFFFFFFFF", NULL, 16);
        if (num == NULL)
        	return NULL;

	value = PyInt_AsUnsignedLongMask(num);
	if (value != ULONG_MAX)
        	return raiseTestError("test_k_code",
	    "PyInt_AsUnsignedLongMask() returned wrong value for long 0xFFF...FFF");

        PyTuple_SET_ITEM(tuple, 0, num);

        value = 0;
        if (PyArg_ParseTuple(tuple, "k:test_k_code", &value) < 0)
        	return NULL;
        if (value != ULONG_MAX)
        	return raiseTestError("test_k_code",
			"k code returned wrong value for long 0xFFF...FFF");

	Py_DECREF(num);
        num = PyLong_FromString("-FFFFFFFF000000000000000042", NULL, 16);
        if (num == NULL)
        	return NULL;

	value = PyInt_AsUnsignedLongMask(num);
	if (value != (unsigned long)-0x42)
        	return raiseTestError("test_k_code",
	    "PyInt_AsUnsignedLongMask() returned wrong value for long 0xFFF...FFF");

        PyTuple_SET_ITEM(tuple, 0, num);

	value = 0;
        if (PyArg_ParseTuple(tuple, "k:test_k_code", &value) < 0)
        	return NULL;
        if (value != (unsigned long)-0x42)
        	return raiseTestError("test_k_code",
			"k code returned wrong value for long -0xFFF..000042");

	Py_DECREF(tuple);
	Py_INCREF(Py_None);
	return Py_None;
}

#ifdef Py_USING_UNICODE

/* Test the u and u# codes for PyArg_ParseTuple. May leak memory in case
   of an error.
*/
static PyObject *
test_u_code(PyObject *self)
{
	PyObject *tuple, *obj;
	Py_UNICODE *value;
	int len;

        tuple = PyTuple_New(1);
        if (tuple == NULL)
        	return NULL;

        obj = PyUnicode_Decode("test", strlen("test"),
			       "ascii", NULL);
        if (obj == NULL)
        	return NULL;

        PyTuple_SET_ITEM(tuple, 0, obj);

        value = 0;
        if (PyArg_ParseTuple(tuple, "u:test_u_code", &value) < 0)
        	return NULL;
        if (value != PyUnicode_AS_UNICODE(obj))
        	return raiseTestError("test_u_code",
			"u code returned wrong value for u'test'");
        value = 0;
        if (PyArg_ParseTuple(tuple, "u#:test_u_code", &value, &len) < 0)
        	return NULL;
        if (value != PyUnicode_AS_UNICODE(obj) ||
	    len != PyUnicode_GET_SIZE(obj))
        	return raiseTestError("test_u_code",
			"u# code returned wrong values for u'test'");

	Py_DECREF(tuple);
	Py_INCREF(Py_None);
	return Py_None;
}

static
PyObject *codec_incrementalencoder(PyObject *self, PyObject *args)
{
	const char *encoding, *errors = NULL;
	if (!PyArg_ParseTuple(args, "s|s:test_incrementalencoder",
			      &encoding, &errors))
		return NULL;
	return PyCodec_IncrementalEncoder(encoding, errors);
}

static
PyObject *codec_incrementaldecoder(PyObject *self, PyObject *args)
{
	const char *encoding, *errors = NULL;
	if (!PyArg_ParseTuple(args, "s|s:test_incrementaldecoder",
			      &encoding, &errors))
		return NULL;
	return PyCodec_IncrementalDecoder(encoding, errors);
}

#endif

/* Simple test of _PyLong_NumBits and _PyLong_Sign. */
static PyObject *
test_long_numbits(PyObject *self)
{
	struct triple {
		long input;
		size_t nbits;
		int sign;
	} testcases[] = {{0, 0, 0},
			 {1L, 1, 1},
			 {-1L, 1, -1},
			 {2L, 2, 1},
			 {-2L, 2, -1},
			 {3L, 2, 1},
			 {-3L, 2, -1},
			 {4L, 3, 1},
			 {-4L, 3, -1},
			 {0x7fffL, 15, 1},	/* one Python long digit */
			 {-0x7fffL, 15, -1},
			 {0xffffL, 16, 1},
			 {-0xffffL, 16, -1},
			 {0xfffffffL, 28, 1},
			 {-0xfffffffL, 28, -1}};
	int i;

	for (i = 0; i < sizeof(testcases) / sizeof(struct triple); ++i) {
		PyObject *plong = PyLong_FromLong(testcases[i].input);
		size_t nbits = _PyLong_NumBits(plong);
		int 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_INCREF(Py_None);
	return Py_None;
}

/* Example passing NULLs to PyObject_Str(NULL) and PyObject_Unicode(NULL). */

static PyObject *
test_null_strings(PyObject *self)
{
	PyObject *o1 = PyObject_Str(NULL), *o2 = PyObject_Unicode(NULL);
	PyObject *tuple = PyTuple_Pack(2, o1, o2);
	Py_XDECREF(o1);
	Py_XDECREF(o2);
	return tuple;
}

static PyObject *
raise_exception(PyObject *self, PyObject *args)
{
	PyObject *exc;
	PyObject *exc_args, *v;
	int num_args, i;

	if (!PyArg_ParseTuple(args, "Oi:raise_exception",
			      &exc, &num_args))
		return NULL;

	exc_args = PyTuple_New(num_args);
	if (exc_args == NULL)
		return NULL;
	for (i = 0; i < num_args; ++i) {
		v = PyInt_FromLong(i);
		if (v == NULL) {
			Py_DECREF(exc_args);
			return NULL;
		}
		PyTuple_SET_ITEM(exc_args, i, v);
	}
	PyErr_SetObject(exc, exc_args);
	Py_DECREF(exc_args);
	return NULL;
}

#ifdef WITH_THREAD

/* test_thread_state spawns a thread of its own, and that thread releases
 * `thread_done` when it's finished.  The driver code has to know when the
 * thread finishes, because the thread uses a PyObject (the callable) that
 * may go away when the driver finishes.  The former lack of this explicit
 * synchronization caused rare segfaults, so rare that they were seen only
 * on a Mac buildbot (although they were possible on any box).
 */
static PyThread_type_lock thread_done = NULL;

static void
_make_call(void *callable)
{
	PyObject *rc;
	PyGILState_STATE s = PyGILState_Ensure();
	rc = PyObject_CallFunction(callable, "");
	Py_XDECREF(rc);
	PyGILState_Release(s);
}

/* Same thing, but releases `thread_done` when it returns.  This variant
 * should be called only from threads spawned by test_thread_state().
 */
static void
_make_call_from_thread(void *callable)
{
	_make_call(callable);
	PyThread_release_lock(thread_done);
}

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 set up for threading */
	PyEval_InitThreads();
	thread_done = PyThread_allocate_lock();
	if (thread_done == NULL)
		return PyErr_NoMemory();
	PyThread_acquire_lock(thread_done, 1);

	/* Start a new thread with our callback. */
	PyThread_start_new_thread(_make_call_from_thread, 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);
	PyThread_acquire_lock(thread_done, 1);  /* wait for thread to finish */
	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_from_thread, fn);
	_make_call(fn);
	PyThread_acquire_lock(thread_done, 1);  /* wait for thread to finish */
	Py_END_ALLOW_THREADS

	PyThread_free_lock(thread_done);
	Py_RETURN_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},
	{"test_null_strings",	(PyCFunction)test_null_strings,	 METH_NOARGS},

	{"getargs_b",		getargs_b,			 METH_VARARGS},
	{"getargs_B",		getargs_B,			 METH_VARARGS},
	{"getargs_H",		getargs_H,			 METH_VARARGS},
	{"getargs_I",		getargs_I,			 METH_VARARGS},
	{"getargs_k",		getargs_k,			 METH_VARARGS},
	{"getargs_i",		getargs_i,			 METH_VARARGS},
	{"getargs_l",		getargs_l,			 METH_VARARGS},
	{"getargs_n",		getargs_n, 			 METH_VARARGS},
#ifdef HAVE_LONG_LONG
	{"getargs_L",		getargs_L,			 METH_VARARGS},
	{"getargs_K",		getargs_K,			 METH_VARARGS},
	{"test_longlong_api",	test_longlong_api,		 METH_NOARGS},
	{"test_L_code",		(PyCFunction)test_L_code,	 METH_NOARGS},
	{"codec_incrementalencoder",
	 (PyCFunction)codec_incrementalencoder,	 METH_VARARGS},
	{"codec_incrementaldecoder",
	 (PyCFunction)codec_incrementaldecoder,	 METH_VARARGS},
#endif
#ifdef Py_USING_UNICODE
	{"test_u_code",		(PyCFunction)test_u_code,	 METH_NOARGS},
#endif
#ifdef WITH_THREAD
	{"_test_thread_state",  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);
	if (m == NULL)
		return;

	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, "PY_SSIZE_T_MIN", PyInt_FromSsize_t(PY_SSIZE_T_MIN));
	PyModule_AddObject(m, "INT_MAX", PyInt_FromLong(INT_MAX));
	PyModule_AddObject(m, "LONG_MAX", PyInt_FromLong(LONG_MAX));
	PyModule_AddObject(m, "PY_SSIZE_T_MAX", PyInt_FromSsize_t(PY_SSIZE_T_MAX));

	TestError = PyErr_NewException("_testcapi.error", NULL, NULL);
	Py_INCREF(TestError);
	PyModule_AddObject(m, "error", TestError);
}