mbed-os/TESTS/mbed_drivers/rtc/main.cpp

496 lines
14 KiB
C++

/*
* Copyright (c) 2017, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "mbed.h"
#include "greentea-client/test_env.h"
#include "unity.h"
#include "utest.h"
#include "rtos.h"
#include "rtc_api.h"
#if !DEVICE_RTC
#error [NOT_SUPPORTED] test not supported
#endif
using namespace utest::v1;
/* On some boards RTC counter can not be
* Initialised with 0 value in such case
* drivers sets RTC counter to 1. */
#define CUSTOM_TIME_0 1
#define CUSTOM_TIME_1 1256729737
#define CUSTOM_TIME_2 2147483637
#define DELAY_10_SEC 10
#define MS_PER_SEC 1000
#define RTC_DELTA 1
static volatile int rtc_enabled_ret;
static volatile time_t rtc_time_val;
static volatile bool rtc_read_called;
static volatile bool rtc_write_called;
static volatile bool rtc_init_called;
static volatile bool rtc_isenabled_called;
/* Stub of RTC read function. */
static time_t read_rtc_stub(void)
{
rtc_read_called = true;
return rtc_time_val;
}
/* Stub of RTC write function. */
static void write_rtc_stub(time_t t)
{
rtc_write_called = true;
rtc_time_val = t;
}
/* Stub of RTC init function. */
static void init_rtc_stub(void)
{
rtc_init_called = true;
}
/* Stub of RTC isenabled function. */
static int isenabled_rtc_stub(void)
{
rtc_isenabled_called = true;
return rtc_enabled_ret;
}
/* This test verifies if attach_rtc provides availability to
* connect specific RTC driver functions.
*
* This is unit test to verify if correct functions are used
* to support RTC.
*
* Given specific RTC driver functions have been attached (stubs).
* When set_time/time functions are called.
* Then set_time/time functions use attached RTC functions.
*/
void test_attach_RTC_stub_funtions()
{
time_t seconds = 0;
/* Attache RTC read/write/init/isenabled stubs. */
attach_rtc(read_rtc_stub, write_rtc_stub, init_rtc_stub, isenabled_rtc_stub);
/* Init stub variables/set to unexpected. */
rtc_write_called = false;
rtc_init_called = false;
/* Call set_time() function. We expect that init and write RTC stubs
* will be executed.
*/
set_time(CUSTOM_TIME_1);
/* Verify results. */
TEST_ASSERT_EQUAL(true, rtc_write_called);
TEST_ASSERT_EQUAL(true, rtc_init_called);
/* Init stub variables/set to unexpected. */
rtc_time_val = CUSTOM_TIME_1;
rtc_enabled_ret = true;
rtc_isenabled_called = false;
rtc_read_called = false;
/* Call time() function. We expect that isenabled and read RTC stubs
* are be executed.
*/
time(NULL);
/* Verify results. */
TEST_ASSERT_EQUAL(true, rtc_isenabled_called);
TEST_ASSERT_EQUAL(true, rtc_read_called);
/* This part of the test can be executed only on RTC devices. */
/* Restore env. */
attach_rtc(rtc_read, rtc_write, rtc_init, rtc_isenabled);
/* Set to unexpected. */
rtc_write_called = false;
rtc_init_called = false;
rtc_isenabled_called = false;
rtc_init_called = false;
/* Set time. */
set_time(CUSTOM_TIME_1);
/* Get time. */
seconds = time(NULL);
/* Stub RTC functions should not be called now. */
TEST_ASSERT_EQUAL(false, rtc_isenabled_called);
TEST_ASSERT_EQUAL(false, rtc_init_called);
TEST_ASSERT_EQUAL(false, rtc_write_called);
TEST_ASSERT_EQUAL(false, rtc_init_called);
/* Check if time has been successfully set and retrieved. */
TEST_ASSERT_EQUAL(CUSTOM_TIME_1, seconds);
}
/* This test verifies if attach_rtc provides availability to
* connect specific RTC driver functions.
*
* This is unit test to verify if correct functions are used
* to support RTC.
*
* Given specific RTC driver functions have been attached (original).
* When set_time/time functions are called.
* Then set_time/time functions use attached RTC functions.
*/
void test_attach_RTC_org_funtions()
{
time_t seconds = 0;
/* Attache original driver functions. */
attach_rtc(rtc_read, rtc_write, rtc_init, rtc_isenabled);
/* Set to unexpected. */
rtc_write_called = false;
rtc_init_called = false;
rtc_isenabled_called = false;
rtc_init_called = false;
/* Set time. */
set_time(CUSTOM_TIME_1);
/* Get time. */
seconds = time(NULL);
/* Stub RTC functions should not be called now. */
TEST_ASSERT_EQUAL(false, rtc_isenabled_called);
TEST_ASSERT_EQUAL(false, rtc_init_called);
TEST_ASSERT_EQUAL(false, rtc_write_called);
TEST_ASSERT_EQUAL(false, rtc_init_called);
/* Check if time has been successfully set and retrieved. */
TEST_ASSERT_EQUAL(CUSTOM_TIME_1, seconds);
}
/* This test verifies if time() function returns
* current time when all RTC functions are
* defined and RTC is enabled.
*
* Note: Stubs are used instead of original RTC functions.
*
* Given environment has RTC functions defined and RTC is enabled.
* When time() functions is called.
* Then current time is returned.
*/
void test_time_RTC_func_defined_RTC_is_enabled()
{
time_t seconds = 0;
/* Attache RTC read/write/init/isenabled stubs. */
attach_rtc(read_rtc_stub, write_rtc_stub, init_rtc_stub, isenabled_rtc_stub);
/* Simulate that RTC is enabled. */
rtc_enabled_ret = true;
/* Simulate current time. */
rtc_time_val = CUSTOM_TIME_1;
/* Try to get current time. */
seconds = time(NULL);
/* Check if expected value has been returned. */
TEST_ASSERT_EQUAL(CUSTOM_TIME_1, seconds);
}
/* This test verifies if time() function resets time
* when RTC functions are defined and RTC is disabled.
*
* Note: Stubs are used instead of original RTC functions.
*
* Given environment has RTC functions defined and RTC is disabled.
* When time() functions is called.
* Then function result is 0.
*/
void test_time_RTC_func_defined_RTC_is_disabled()
{
time_t seconds = 0;
/* Attache RTC read/write/init/isenabled stubs. */
attach_rtc(read_rtc_stub, write_rtc_stub, init_rtc_stub, isenabled_rtc_stub);
/* Simulate that RTC is disabled. */
rtc_enabled_ret = false;
/* Simulate current time. */
rtc_time_val = CUSTOM_TIME_1;
/* Try to get current time. */
seconds = time(NULL);
/* Check if expected value has been returned. */
TEST_ASSERT_EQUAL(0, seconds);
}
/* This test verifies if time() function can be successfully
* executed when isenabled RTC function is undefined.
*
* Note: Stubs are used instead of original RTC functions.
*
* Given environment has isenabled RTC function undefined.
* When time() functions is called.
* Then current time is returned.
*/
void test_time_isenabled_RTC_func_undefined()
{
time_t seconds = 0;
/* Attache RTC read/write/init stubs. */
attach_rtc(read_rtc_stub, write_rtc_stub, init_rtc_stub, NULL);
/* Simulate current time. */
rtc_time_val = CUSTOM_TIME_1;
/* Try to get current time. */
seconds = time(NULL);
/* Check if expected value has been returned. */
TEST_ASSERT_EQUAL(CUSTOM_TIME_1, seconds);
}
/* This test verifies if time() function returns -1 if
* read RTC function is undefined.
*
* Note: Stubs are used instead of original RTC functions.
*
* Given environment has read RTC function undefined.
* When time() functions is called.
* Then -1 is returned.
*/
void test_time_read_RTC_func_undefined()
{
time_t seconds = 0;
/* Attache RTC write/init/isenabled stubs. */
attach_rtc(NULL, write_rtc_stub, init_rtc_stub, isenabled_rtc_stub);
/* Simulate current time. */
rtc_time_val = CUSTOM_TIME_1;
/* Try to get current time. */
seconds = time(NULL);
/* Check if expected value has been returned. */
TEST_ASSERT_EQUAL((time_t)-1, seconds);
}
/* This test verifies if time() function stores
* the result in given time buffer (if specified).
*
* Note: Stubs are used instead original RTC functions.
* Other test cases calls time() routine with
* undefined time buffer.
*
* Given environment has all RTC function defined, RTC is enabled and time buffer is passed to time() function.
* When time() functions is called.
* Then current time is stored in the specified buffer.
*/
void test_time_called_with_param()
{
time_t seconds = 0;
time_t buffer = 0;
/* Attache RTC read/write/init/isenabled stubs. */
attach_rtc(read_rtc_stub, write_rtc_stub, init_rtc_stub, isenabled_rtc_stub);
/* Simulate that RTC is enabled. */
rtc_enabled_ret = true;
/* Simulate current time. */
rtc_time_val = CUSTOM_TIME_1;
/* Try to get current time. */
seconds = time(&buffer);
/* Check if expected value has been returned. */
TEST_ASSERT_EQUAL(CUSTOM_TIME_1, seconds);
TEST_ASSERT_EQUAL(CUSTOM_TIME_1, buffer);
}
/* This test verifies if set_time() function inits the RTC
* and writes current time if RTC functions are defined.
*
* Note: Stubs are used instead of original RTC functions.
*
* Given environment has RTC functions defined.
* When set_time() functions is called.
* Then function initialises RTC and sets RTC time.
*/
void test_set_time_RTC_func_defined()
{
/* Attache RTC read/write/init/isenabled stubs. */
attach_rtc(read_rtc_stub, write_rtc_stub, init_rtc_stub, isenabled_rtc_stub);
/* Set to unexpected. */
rtc_time_val = 123;
rtc_init_called = false;
/* Set current time. */
rtc_time_val = 123;
/* Set new RTC time. */
set_time(CUSTOM_TIME_1);
/* Check if RTC init has been performed and RTC time has been updated. */
TEST_ASSERT_EQUAL(true, rtc_init_called);
TEST_ASSERT_EQUAL(CUSTOM_TIME_1, time(NULL));
TEST_ASSERT_EQUAL(CUSTOM_TIME_1, rtc_time_val);
}
/* This test verifies if set_time() function can be
* successfully executed when init RTC function is undefined.
*
* Note: Stubs are used instead of original RTC functions.
*
* Given environment has init RTC function undefined.
* When set_time() functions is called.
* Then function sets RTC time.
*/
void test_set_time_init_RTC_func_undefined()
{
/* Attache RTC read/write/isenabled stubs. */
attach_rtc(read_rtc_stub, write_rtc_stub, NULL, isenabled_rtc_stub);
/* Set to unexpected. */
rtc_time_val = 123;
/* Set new RTC time. */
set_time(CUSTOM_TIME_1);
/* Check if RTC time has been updated. */
TEST_ASSERT_EQUAL(CUSTOM_TIME_1, time(NULL));
TEST_ASSERT_EQUAL(CUSTOM_TIME_1, rtc_time_val);
}
/* This test verifies if set_time() function can be
* successfully executed when write RTC function is undefined.
*
* Note: Stubs are used instead original RTC functions.
*
* Given environemt has write RTC function undefined.
* When set_time() function is called.
* Then function inits RTC and does not modify RTC time.
*/
void test_set_time_write_RTC_func_undefined()
{
/* Attache RTC read/write/init/isenabled stubs. */
attach_rtc(read_rtc_stub, NULL, init_rtc_stub, isenabled_rtc_stub);
/* Set to unexpected. */
rtc_time_val = 123;
rtc_init_called = false;
/* Set new RTC time. */
set_time(CUSTOM_TIME_1);
/* Check if RTC has been initialized and RTC time has not been updated. */
TEST_ASSERT_EQUAL(true, rtc_init_called);
TEST_ASSERT_EQUAL(123, time(NULL));
TEST_ASSERT_EQUAL(123, rtc_time_val);
}
/* This test verifies if RTC time can be successfully set.
*
* Note: Original RTC functions are used in this test.
*
* Given environment has RTC available.
* When set_time() functions is called.
* Then RTC time is retrieved.
*/
template<uint32_t timeValue>
void test_functional_set()
{
/* Set original RTC functions. */
attach_rtc(rtc_read, rtc_write, rtc_init, rtc_isenabled);
/* Set new RTC time. */
set_time(timeValue);
/* Get current time and verify that new value has been set. */
TEST_ASSERT_EQUAL(timeValue, time(NULL));
}
/* This test verifies if RTC counts seconds.
*
* Note: Original RTC functions are used in this test.
*
* Given RTC has time set.
* When some time has passed (seconds).
* Then RTC time is updated.
*/
void test_functional_count()
{
time_t seconds = 0;
/* Set original RTC functions. */
attach_rtc(rtc_read, rtc_write, rtc_init, rtc_isenabled);
/* Set new RTC time. */
set_time(CUSTOM_TIME_2);
/* Wait 10 sec. */
wait_ms(DELAY_10_SEC * MS_PER_SEC);
/* Get time. */
seconds = time(NULL);
/* Verify that RTC counts seconds. */
TEST_ASSERT_UINT_WITHIN(RTC_DELTA, (unsigned int)seconds, CUSTOM_TIME_2 + DELAY_10_SEC);
}
utest::v1::status_t test_setup(const size_t number_of_cases)
{
GREENTEA_SETUP(20, "default_auto");
return verbose_test_setup_handler(number_of_cases);
}
Case cases[] = {
Case("Unit Test: attach stub RTC functions.", test_attach_RTC_stub_funtions),
Case("Unit Test: attach original RTC functions.", test_attach_RTC_org_funtions),
Case("Unit Test: time() - RTC functions are defined, RTC is enabled.", test_time_RTC_func_defined_RTC_is_enabled),
Case("Unit Test: time() - RTC functions are defined, RTC is disabled.", test_time_RTC_func_defined_RTC_is_disabled),
Case("Unit Test: time() - isenabled RTC function is undefined.", test_time_isenabled_RTC_func_undefined),
Case("Unit Test: time() - read RTC function is undefined.", test_time_read_RTC_func_undefined),
Case("Unit Test: time() - result is stored in given buffer.", test_time_called_with_param),
Case("Unit Test: set_time() - RTC functions are defined.", test_set_time_RTC_func_defined),
Case("Unit Test: set_time() - init RTC function is undefined.", test_set_time_init_RTC_func_undefined),
Case("Unit Test: set_time() - write RTC function is undefined.", test_set_time_write_RTC_func_undefined),
Case("Functional Test: set time - CUSTOM_TIME_0.", test_functional_set<CUSTOM_TIME_0>),
Case("Functional Test: set time - CUSTOM_TIME_1.", test_functional_set<CUSTOM_TIME_1>),
Case("Functional Test: set time - CUSTOM_TIME_2.", test_functional_set<CUSTOM_TIME_2>),
Case("Functional Test: RTC counts seconds.", test_functional_count),
};
Specification specification(test_setup, cases);
int main() {
return !Harness::run(specification);
}