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Tests: Watchdog: Update test case teardown 

Added a mechanism which will prevent an initialised watchdog from
resetting the device during final greentea communication.
This allows testing watchdog timeouts as short as 50 ms.
pull/10777/head
Filip Jagodzinski 2018-04-23 16:40:30 +02:00 committed by Filip Jagodzinski
parent e3bcf0cebf
commit c29cdab079
1 changed files with 23 additions and 3 deletions
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26
TESTS/mbed_hal/watchdog/main.cpp
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@ -24,6 +24,7 @@
#include "unity/unity.h"
#include "utest/utest.h"
#include "watchdog_api_tests.h"
#include "mbed.h"
#include <stdlib.h>
@ -35,6 +36,10 @@
#define WORST_TIMEOUT_RESOLUTION_MS 8UL
#define TIMEOUT_DELTA_MS (WORST_TIMEOUT_RESOLUTION_MS)
// Do not set watchdog timeout shorter than 50 ms as it may cause the
// host-test-runner return 'TIMEOUT' instead of 'FAIL' / 'PASS' if watchdog
// performs reset during test suite teardown.
#define WDG_TIMEOUT_MS 500UL
#define MSG_VALUE_DUMMY "0"
@ -69,6 +74,18 @@ using utest::v1::Harness;
const watchdog_config_t WDG_CONFIG_DEFAULT = { .timeout_ms = WDG_TIMEOUT_MS };
Thread wdg_kicking_thread;
Semaphore kick_wdg_during_test_teardown(0, 1);
void wdg_kicking_thread_fun()
{
kick_wdg_during_test_teardown.wait();
while (true) {
hal_watchdog_kick();
wait_ms(20);
}
}
void test_max_timeout_is_valid()
{
TEST_ASSERT(hal_watchdog_get_platform_features().max_timeout > 1UL);
@ -133,6 +150,8 @@ utest::v1::status_t case_setup_sync_on_reset(const Case *const source, const siz
utest::v1::status_t case_teardown_sync_on_reset(const Case *const source, const size_t passed, const size_t failed,
const utest::v1::failure_t failure)
{
// Unlock kicking the watchdog during teardown.
kick_wdg_during_test_teardown.release();
utest::v1::status_t status = utest::v1::greentea_case_teardown_handler(source, passed, failed, failure);
if (failed) {
/* Return immediately and skip the device reset, if the test case failed.
@ -206,6 +225,10 @@ int testsuite_setup_sync_on_reset(const size_t number_of_cases)
return utest::v1::STATUS_ABORT;
}
// The thread is started here, but feeding the watchdog will start
// when the semaphore is released during a test case teardown.
wdg_kicking_thread.start(mbed::callback(wdg_kicking_thread_fun));
utest_printf("Starting with test case index %i of all %i defined test cases.\n", CASE_INDEX_START, number_of_cases);
return CASE_INDEX_START;
}
@ -220,9 +243,6 @@ Case cases[] = {
test_update_config,
(utest::v1::case_teardown_handler_t) case_teardown_wdg_stop_or_reset),
// Do not set watchdog timeout shorter than 500 ms as it may cause the
// host-test-runner return 'TIMEOUT' instead of 'FAIL' / 'PASS' if watchdog
// performs reset during test suite teardown.
Case("Init, 500 ms", (utest::v1::case_setup_handler_t) case_setup_sync_on_reset,
test_init<500UL>, (utest::v1::case_teardown_handler_t) case_teardown_sync_on_reset),
Case("Init, max_timeout", (utest::v1::case_setup_handler_t) case_setup_sync_on_reset,