u-boot/test/test-main.c
Stefan Roese af042c211d cyclic: Add a simple test
Add a test for cyclic function registration and activation.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-09-13 16:01:44 -04:00

458 lines
12 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2021 Google LLC
* Written by Simon Glass <sjg@chromium.org>
*/
#include <common.h>
#include <console.h>
#include <cyclic.h>
#include <dm.h>
#include <event.h>
#include <dm/root.h>
#include <dm/test.h>
#include <dm/uclass-internal.h>
#include <test/test.h>
#include <test/ut.h>
DECLARE_GLOBAL_DATA_PTR;
/* 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;
uts->root = NULL;
uts->testdev = NULL;
uts->force_fail_alloc = false;
uts->skip_post_probe = false;
gd->dm_root = NULL;
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);
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;
/*
* 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)
{
struct udevice *dev;
int ret;
/* Scanning the uclass is enough to probe all the devices */
for (ret = uclass_first_device(UCLASS_TEST, &dev);
dev;
ret = uclass_next_device(&dev))
;
return ret;
}
/*
* 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_scan_fdt(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());
ut_assertok(cyclic_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));
ut_assertok(dm_scan_other(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))
ut_assertok(dm_extended_scan(false));
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_uninit());
ut_assertok(event_uninit());
return 0;
}
/**
* 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 -EAGAIN;
if (ret)
return ret;
test->func(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
* @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_live_flat(struct unit_test_state *uts,
struct unit_test *test, const char *name)
{
int runs;
/* Run with the live tree if possible */
runs = 0;
if (CONFIG_IS_ENABLED(OF_LIVE)) {
if (!(test->flags &
(UT_TESTF_FLAT_TREE | UT_TESTF_LIVE_OR_FLAT))) {
uts->of_live = true;
ut_assertok(ut_run_test(uts, test, test->name));
runs++;
}
}
/*
* Run with the flat tree if we couldn't run it with live tree,
* or it is a core test.
*/
if (!(test->flags & UT_TESTF_LIVE_TREE) &&
(!runs || ut_test_run_on_flattree(test))) {
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)
{
struct unit_test *test;
int found = 0;
for (test = tests; test < tests + count; test++) {
const char *test_name = test->name;
int ret, i, old_fail_count;
if (!test_matches(prefix, test_name, select_name))
continue;
old_fail_count = uts->fail_count;
for (i = 0; i < uts->runs_per_test; i++)
ret = ut_run_test_live_flat(uts, test, select_name);
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)
{
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;
ret = ut_run_tests(&uts, prefix, tests, count, select_name);
if (ret == -ENOENT)
printf("Test '%s' not found\n", select_name);
else
printf("Failures: %d\n", uts.fail_count);
/* Best efforts only...ignore errors */
if (has_dm_tests)
dm_test_restore(uts.of_root);
return ret;
}