summaryrefslogtreecommitdiff
path: root/test/test-main.c
blob: 778bf0a18a0f493236294f9a0da25b70dd2f2994 (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
// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright 2021 Google LLC
 * Written by Simon Glass <sjg@chromium.org>
 */

#include <common.h>
#include <blk.h>
#include <console.h>
#include <cyclic.h>
#include <dm.h>
#include <event.h>
#include <net.h>
#include <of_live.h>
#include <os.h>
#include <dm/ofnode.h>
#include <dm/root.h>
#include <dm/test.h>
#include <dm/uclass-internal.h>
#include <test/test.h>
#include <test/ut.h>
#include <u-boot/crc.h>

DECLARE_GLOBAL_DATA_PTR;

/**
 * enum fdtchk_t - what to do with the device tree (gd->fdt_blob)
 *
 * This affects what happens with the device tree before and after a test
 *
 * @FDTCHK_NONE: Do nothing
 * @FDTCHK_CHECKSUM: Take a checksum of the FDT before the test runs and
 *	compare it afterwards to detect any changes
 * @FDTCHK_COPY: Make a copy of the FDT and restore it afterwards
 */
enum fdtchk_t {
	FDTCHK_NONE,
	FDTCHK_CHECKSUM,
	FDTCHK_COPY,
};

/**
 * fdt_action() - get the required action for the FDT
 *
 * @return the action that should be taken for this build
 */
static enum fdtchk_t fdt_action(void)
{
	/* For sandbox SPL builds, do nothing */
	if (IS_ENABLED(CONFIG_SANDBOX) && IS_ENABLED(CONFIG_SPL_BUILD))
		return FDTCHK_NONE;

	/* Do a copy for sandbox (but only the U-Boot build, not SPL) */
	if (IS_ENABLED(CONFIG_SANDBOX))
		return FDTCHK_COPY;

	/* For all other boards, do a checksum */
	return FDTCHK_CHECKSUM;
}

/* This is valid when a test is running, NULL otherwise */
static struct unit_test_state *cur_test_state;

struct unit_test_state *test_get_state(void)
{
	return cur_test_state;
}

void test_set_state(struct unit_test_state *uts)
{
	cur_test_state = uts;
}

/**
 * dm_test_pre_run() - Get ready to run a driver model test
 *
 * This clears out the driver model data structures. For sandbox it resets the
 * state structure
 *
 * @uts: Test state
 */
static int dm_test_pre_run(struct unit_test_state *uts)
{
	bool of_live = uts->of_live;

	if (of_live && (gd->flags & GD_FLG_FDT_CHANGED)) {
		printf("Cannot run live tree test as device tree changed\n");
		return -EFAULT;
	}
	uts->root = NULL;
	uts->testdev = NULL;
	uts->force_fail_alloc = false;
	uts->skip_post_probe = false;
	if (fdt_action() == FDTCHK_CHECKSUM)
		uts->fdt_chksum = crc8(0, gd->fdt_blob,
				       fdt_totalsize(gd->fdt_blob));
	gd->dm_root = NULL;
	malloc_disable_testing();
	if (CONFIG_IS_ENABLED(UT_DM) && !CONFIG_IS_ENABLED(OF_PLATDATA))
		memset(dm_testdrv_op_count, '\0', sizeof(dm_testdrv_op_count));
	arch_reset_for_test();

	/* Determine whether to make the live tree available */
	gd_set_of_root(of_live ? uts->of_root : NULL);
	oftree_reset();
	ut_assertok(dm_init(of_live));
	uts->root = dm_root();

	return 0;
}

static int dm_test_post_run(struct unit_test_state *uts)
{
	int id;

	if (gd->fdt_blob) {
		switch (fdt_action()) {
		case FDTCHK_COPY:
			memcpy((void *)gd->fdt_blob, uts->fdt_copy, uts->fdt_size);
			break;
		case FDTCHK_CHECKSUM: {
			uint chksum;

			chksum = crc8(0, gd->fdt_blob, fdt_totalsize(gd->fdt_blob));
			if (chksum != uts->fdt_chksum) {
				/*
				 * We cannot run any more tests that need the
				 * live tree, since its strings point into the
				 * flat tree, which has changed. This likely
				 * means that at least some of the pointers from
				 * the live tree point to different things
				 */
				printf("Device tree changed: cannot run live tree tests\n");
				gd->flags |= GD_FLG_FDT_CHANGED;
			}
			break;
		}
		case FDTCHK_NONE:
			break;
		}
	}

	/*
	 * With of-platdata-inst the uclasses are created at build time. If we
	 * destroy them we cannot get them back since uclass_add() is not
	 * supported. So skip this.
	 */
	if (!CONFIG_IS_ENABLED(OF_PLATDATA_INST)) {
		for (id = 0; id < UCLASS_COUNT; id++) {
			struct uclass *uc;

			/*
			 * If the uclass doesn't exist we don't want to create
			 * it. So check that here before we call
			 * uclass_find_device().
			 */
			uc = uclass_find(id);
			if (!uc)
				continue;
			ut_assertok(uclass_destroy(uc));
		}
	}

	return 0;
}

/* Ensure all the test devices are probed */
static int do_autoprobe(struct unit_test_state *uts)
{
	return uclass_probe_all(UCLASS_TEST);
}

/*
 * ut_test_run_on_flattree() - Check if we should run a test with flat DT
 *
 * This skips long/slow tests where there is not much value in running a flat
 * DT test in addition to a live DT test.
 *
 * Return: true to run the given test on the flat device tree
 */
static bool ut_test_run_on_flattree(struct unit_test *test)
{
	const char *fname = strrchr(test->file, '/') + 1;

	if (!(test->flags & UT_TESTF_DM))
		return false;

	return !strstr(fname, "video") || strstr(test->name, "video_base");
}

/**
 * test_matches() - Check if a test should be run
 *
 * This checks if the a test should be run. In the normal case of running all
 * tests, @select_name is NULL.
 *
 * @prefix: String prefix for the tests. Any tests that have this prefix will be
 *	printed without the prefix, so that it is easier to see the unique part
 *	of the test name. If NULL, any suite name (xxx_test) is considered to be
 *	a prefix.
 * @test_name: Name of current test
 * @select_name: Name of test to run (or NULL for all)
 * Return: true to run this test, false to skip it
 */
static bool test_matches(const char *prefix, const char *test_name,
			 const char *select_name)
{
	size_t len;

	if (!select_name)
		return true;

	/* Allow glob expansion in the test name */
	len = select_name[strlen(select_name) - 1] == '*' ? strlen(select_name) : 0;
	if (len-- == 1)
		return true;

	if (!strncmp(test_name, select_name, len))
		return true;

	if (prefix) {
		/* All tests have this prefix */
		if (!strncmp(test_name, prefix, strlen(prefix)))
			test_name += strlen(prefix);
	} else {
		const char *p = strstr(test_name, "_test_");

		/* convert xxx_test_yyy to yyy, i.e. remove the suite name */
		if (p)
			test_name = p + strlen("_test_");
	}

	if (!strncmp(test_name, select_name, len))
		return true;

	return false;
}

/**
 * ut_list_has_dm_tests() - Check if a list of tests has driver model ones
 *
 * @tests: List of tests to run
 * @count: Number of tests to ru
 * Return: true if any of the tests have the UT_TESTF_DM flag
 */
static bool ut_list_has_dm_tests(struct unit_test *tests, int count)
{
	struct unit_test *test;

	for (test = tests; test < tests + count; test++) {
		if (test->flags & UT_TESTF_DM)
			return true;
	}

	return false;
}

/**
 * dm_test_restore() Put things back to normal so sandbox works as expected
 *
 * @of_root: Value to set for of_root
 * Return: 0 if OK, -ve on error
 */
static int dm_test_restore(struct device_node *of_root)
{
	int ret;

	gd_set_of_root(of_root);
	gd->dm_root = NULL;
	ret = dm_init(CONFIG_IS_ENABLED(OF_LIVE));
	if (ret)
		return ret;
	dm_scan_plat(false);
	if (!CONFIG_IS_ENABLED(OF_PLATDATA))
		dm_extended_scan(false);

	return 0;
}

/**
 * test_pre_run() - Handle any preparation needed to run a test
 *
 * @uts: Test state
 * @test: Test to prepare for
 * Return: 0 if OK, -EAGAIN to skip this test since some required feature is not
 *	available, other -ve on error (meaning that testing cannot likely
 *	continue)
 */
static int test_pre_run(struct unit_test_state *uts, struct unit_test *test)
{
	ut_assertok(event_init());

	if (test->flags & UT_TESTF_DM)
		ut_assertok(dm_test_pre_run(uts));

	ut_set_skip_delays(uts, false);

	uts->start = mallinfo();

	if (test->flags & UT_TESTF_SCAN_PDATA)
		ut_assertok(dm_scan_plat(false));

	if (test->flags & UT_TESTF_PROBE_TEST)
		ut_assertok(do_autoprobe(uts));

	if (!CONFIG_IS_ENABLED(OF_PLATDATA) &&
	    (test->flags & UT_TESTF_SCAN_FDT)) {
		/*
		 * only set this if we know the ethernet uclass will be created
		 */
		eth_set_enable_bootdevs(test->flags & UT_TESTF_ETH_BOOTDEV);
		test_sf_set_enable_bootdevs(test->flags & UT_TESTF_SF_BOOTDEV);
		ut_assertok(dm_extended_scan(false));
	}

	/*
	 * Do this after FDT scan since dm_scan_other() in bootstd-uclass.c
	 * checks for the existence of bootstd
	 */
	if (test->flags & UT_TESTF_SCAN_PDATA)
		ut_assertok(dm_scan_other(false));

	if (IS_ENABLED(CONFIG_SANDBOX) && (test->flags & UT_TESTF_OTHER_FDT)) {
		/* make sure the other FDT is available */
		ut_assertok(test_load_other_fdt(uts));

		/*
		 * create a new live tree with it for every test, in case a
		 * test modifies the tree
		 */
		if (of_live_active()) {
			ut_assertok(unflatten_device_tree(uts->other_fdt,
							  &uts->of_other));
		}
	}

	if (test->flags & UT_TESTF_CONSOLE_REC) {
		int ret = console_record_reset_enable();

		if (ret) {
			printf("Skipping: Console recording disabled\n");
			return -EAGAIN;
		}
	}
	ut_silence_console(uts);

	return 0;
}

/**
 * test_post_run() - Handle cleaning up after a test
 *
 * @uts: Test state
 * @test: Test to clean up after
 * Return: 0 if OK, -ve on error (meaning that testing cannot likely continue)
 */
static int test_post_run(struct unit_test_state *uts, struct unit_test *test)
{
	ut_unsilence_console(uts);
	if (test->flags & UT_TESTF_DM)
		ut_assertok(dm_test_post_run(uts));
	ut_assertok(cyclic_unregister_all());
	ut_assertok(event_uninit());

	free(uts->of_other);
	uts->of_other = NULL;

	blkcache_free();

	return 0;
}

/**
 * skip_test() - Handle skipping a test
 *
 * @uts: Test state to update
 * @return -EAGAIN (always)
 */
static int skip_test(struct unit_test_state *uts)
{
	uts->skip_count++;

	return -EAGAIN;
}

/**
 * ut_run_test() - Run a single test
 *
 * This runs the test, handling any preparation and clean-up needed. It prints
 * the name of each test before running it.
 *
 * @uts: Test state to update. The caller should ensure that this is zeroed for
 *	the first call to this function. On exit, @uts->fail_count is
 *	incremented by the number of failures (0, one hopes)
 * @test_name: Test to run
 * @name: Name of test, possibly skipping a prefix that should not be displayed
 * Return: 0 if all tests passed, -EAGAIN if the test should be skipped, -1 if
 *	any failed
 */
static int ut_run_test(struct unit_test_state *uts, struct unit_test *test,
		       const char *test_name)
{
	const char *fname = strrchr(test->file, '/') + 1;
	const char *note = "";
	int ret;

	if ((test->flags & UT_TESTF_DM) && !uts->of_live)
		note = " (flat tree)";
	printf("Test: %s: %s%s\n", test_name, fname, note);

	/* Allow access to test state from drivers */
	test_set_state(uts);

	ret = test_pre_run(uts, test);
	if (ret == -EAGAIN)
		return skip_test(uts);
	if (ret)
		return ret;

	ret = test->func(uts);
	if (ret == -EAGAIN)
		skip_test(uts);

	ret = test_post_run(uts, test);
	if (ret)
		return ret;

	test_set_state( NULL);

	return 0;
}

/**
 * ut_run_test_live_flat() - Run a test with both live and flat tree
 *
 * This calls ut_run_test() with livetree enabled, which is the standard setup
 * for runnig tests. Then, for driver model test, it calls it again with
 * livetree disabled. This allows checking of flattree being used when OF_LIVE
 * is enabled, as is the case in U-Boot proper before relocation, as well as in
 * SPL.
 *
 * @uts: Test state to update. The caller should ensure that this is zeroed for
 *	the first call to this function. On exit, @uts->fail_count is
 *	incremented by the number of failures (0, one hopes)
 * @test: Test to run
 * Return: 0 if all tests passed, -EAGAIN if the test should be skipped, -1 if
 *	any failed
 */
static int ut_run_test_live_flat(struct unit_test_state *uts,
				 struct unit_test *test)
{
	int runs;

	if ((test->flags & UT_TESTF_OTHER_FDT) && !IS_ENABLED(CONFIG_SANDBOX))
		return skip_test(uts);

	/* Run with the live tree if possible */
	runs = 0;
	if (CONFIG_IS_ENABLED(OF_LIVE)) {
		if (!(test->flags & UT_TESTF_FLAT_TREE)) {
			uts->of_live = true;
			ut_assertok(ut_run_test(uts, test, test->name));
			runs++;
		}
	}

	/*
	 * Run with the flat tree if:
	 * - it is not marked for live tree only
	 * - it doesn't require the 'other' FDT when OFNODE_MULTI_TREE_MAX is
	 *   not enabled (since flat tree can only support a single FDT in that
	 *   case
	 * - we couldn't run it with live tree,
	 * - it is a core test (dm tests except video)
	 * - the FDT is still valid and has not been updated by an earlier test
	 *   (for sandbox we handle this by copying the tree, but not for other
	 *    boards)
	 */
	if ((test->flags & UT_TESTF_SCAN_FDT) &&
	    !(test->flags & UT_TESTF_LIVE_TREE) &&
	    (CONFIG_IS_ENABLED(OFNODE_MULTI_TREE) ||
	     !(test->flags & UT_TESTF_OTHER_FDT)) &&
	    (!runs || ut_test_run_on_flattree(test)) &&
	    !(gd->flags & GD_FLG_FDT_CHANGED)) {
		uts->of_live = false;
		ut_assertok(ut_run_test(uts, test, test->name));
		runs++;
	}

	return 0;
}

/**
 * ut_run_tests() - Run a set of tests
 *
 * This runs the tests, handling any preparation and clean-up needed. It prints
 * the name of each test before running it.
 *
 * @uts: Test state to update. The caller should ensure that this is zeroed for
 *	the first call to this function. On exit, @uts->fail_count is
 *	incremented by the number of failures (0, one hopes)
 * @prefix: String prefix for the tests. Any tests that have this prefix will be
 *	printed without the prefix, so that it is easier to see the unique part
 *	of the test name. If NULL, no prefix processing is done
 * @tests: List of tests to run
 * @count: Number of tests to run
 * @select_name: Name of a single test to run (from the list provided). If NULL
 *	then all tests are run
 * Return: 0 if all tests passed, -ENOENT if test @select_name was not found,
 *	-EBADF if any failed
 */
static int ut_run_tests(struct unit_test_state *uts, const char *prefix,
			struct unit_test *tests, int count,
			const char *select_name, const char *test_insert)
{
	struct unit_test *test, *one;
	int found = 0;
	int pos = 0;
	int upto;

	one = NULL;
	if (test_insert) {
		char *p;

		pos = dectoul(test_insert, NULL);
		p = strchr(test_insert, ':');
		if (p)
			p++;

		for (test = tests; test < tests + count; test++) {
			if (!strcmp(p, test->name))
				one = test;
		}
	}

	for (upto = 0, test = tests; test < tests + count; test++, upto++) {
		const char *test_name = test->name;
		int ret, i, old_fail_count;

		if (!test_matches(prefix, test_name, select_name))
			continue;

		if (test->flags & UT_TESTF_MANUAL) {
			int len;

			/*
			 * manual tests must have a name ending "_norun" as this
			 * is how pytest knows to skip them. See
			 * generate_ut_subtest() for this check.
			 */
			len = strlen(test_name);
			if (len < 6 || strcmp(test_name + len - 6, "_norun")) {
				printf("Test %s is manual so must have a name ending in _norun\n",
				       test_name);
				uts->fail_count++;
				return -EBADF;
			}
			if (!uts->force_run) {
				if (select_name) {
					printf("Test %s skipped as it is manual (use -f to run it)\n",
					       test_name);
				}
				continue;
			}
		}
		old_fail_count = uts->fail_count;

		if (one && upto == pos) {
			ret = ut_run_test_live_flat(uts, one);
			if (uts->fail_count != old_fail_count) {
				printf("Test %s failed %d times (position %d)\n",
				       one->name,
				       uts->fail_count - old_fail_count, pos);
			}
			return -EBADF;
		}

		for (i = 0; i < uts->runs_per_test; i++)
			ret = ut_run_test_live_flat(uts, test);
		if (uts->fail_count != old_fail_count) {
			printf("Test %s failed %d times\n", select_name,
			       uts->fail_count - old_fail_count);
		}
		found++;
		if (ret == -EAGAIN)
			continue;
		if (ret)
			return ret;
	}
	if (select_name && !found)
		return -ENOENT;

	return uts->fail_count ? -EBADF : 0;
}

int ut_run_list(const char *category, const char *prefix,
		struct unit_test *tests, int count, const char *select_name,
		int runs_per_test, bool force_run, const char *test_insert)
{
	struct unit_test_state uts = { .fail_count = 0 };
	bool has_dm_tests = false;
	int ret;

	if (!CONFIG_IS_ENABLED(OF_PLATDATA) &&
	    ut_list_has_dm_tests(tests, count)) {
		has_dm_tests = true;
		/*
		 * If we have no device tree, or it only has a root node, then
		 * these * tests clearly aren't going to work...
		 */
		if (!gd->fdt_blob || fdt_next_node(gd->fdt_blob, 0, NULL) < 0) {
			puts("Please run with test device tree:\n"
			     "    ./u-boot -d arch/sandbox/dts/test.dtb\n");
			return CMD_RET_FAILURE;
		}
	}

	if (!select_name)
		printf("Running %d %s tests\n", count, category);

	uts.of_root = gd_of_root();
	uts.runs_per_test = runs_per_test;
	if (fdt_action() == FDTCHK_COPY && gd->fdt_blob) {
		uts.fdt_size = fdt_totalsize(gd->fdt_blob);
		uts.fdt_copy = os_malloc(uts.fdt_size);
		if (!uts.fdt_copy) {
			printf("Out of memory for device tree copy\n");
			return -ENOMEM;
		}
		memcpy(uts.fdt_copy, gd->fdt_blob, uts.fdt_size);
	}
	uts.force_run = force_run;
	ret = ut_run_tests(&uts, prefix, tests, count, select_name,
			   test_insert);

	/* Best efforts only...ignore errors */
	if (has_dm_tests)
		dm_test_restore(uts.of_root);
	if (IS_ENABLED(CONFIG_SANDBOX)) {
		os_free(uts.fdt_copy);
		os_free(uts.other_fdt);
	}

	if (uts.skip_count)
		printf("Skipped: %d, ", uts.skip_count);
	if (ret == -ENOENT)
		printf("Test '%s' not found\n", select_name);
	else
		printf("Failures: %d\n", uts.fail_count);

	return ret;
}