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https://github.com/portapack-mayhem/mayhem-firmware.git
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304 lines
8.5 KiB
C
Executable File
304 lines
8.5 KiB
C
Executable File
/*
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ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#include "ch.h"
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#include "test.h"
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/**
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* @page test_sem Semaphores test
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*
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* File: @ref testsem.c
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*
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* <h2>Description</h2>
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* This module implements the test sequence for the @ref semaphores subsystem.
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*
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* <h2>Objective</h2>
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* Objective of the test module is to cover 100% of the @ref semaphores code.
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*
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* <h2>Preconditions</h2>
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* The module requires the following kernel options:
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* - @p CH_USE_SEMAPHORES
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* .
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* In case some of the required options are not enabled then some or all tests
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* may be skipped.
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*
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* <h2>Test Cases</h2>
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* - @subpage test_sem_001
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* - @subpage test_sem_002
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* - @subpage test_sem_003
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* - @subpage test_sem_004
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* .
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* @file testsem.c
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* @brief Semaphores test source file
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* @file testsem.h
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* @brief Semaphores test header file
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*/
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#if CH_USE_SEMAPHORES || defined(__DOXYGEN__)
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#define ALLOWED_DELAY MS2ST(5)
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/*
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* Note, the static initializers are not really required because the
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* variables are explicitly initialized in each test case. It is done in order
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* to test the macros.
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*/
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static SEMAPHORE_DECL(sem1, 0);
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/**
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* @page test_sem_001 Enqueuing test
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*
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* <h2>Description</h2>
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* Five threads with randomized priorities are enqueued to a semaphore then
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* awakened one at time.<br>
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* The test expects that the threads reach their goal in FIFO order or
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* priority order depending on the CH_USE_SEMAPHORES_PRIORITY configuration
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* setting.
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*/
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static void sem1_setup(void) {
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chSemInit(&sem1, 0);
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}
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static msg_t thread1(void *p) {
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chSemWait(&sem1);
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test_emit_token(*(char *)p);
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return 0;
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}
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static void sem1_execute(void) {
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threads[0] = chThdCreateStatic(wa[0], WA_SIZE, chThdGetPriority()+5, thread1, "A");
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threads[1] = chThdCreateStatic(wa[1], WA_SIZE, chThdGetPriority()+1, thread1, "B");
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threads[2] = chThdCreateStatic(wa[2], WA_SIZE, chThdGetPriority()+3, thread1, "C");
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threads[3] = chThdCreateStatic(wa[3], WA_SIZE, chThdGetPriority()+4, thread1, "D");
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threads[4] = chThdCreateStatic(wa[4], WA_SIZE, chThdGetPriority()+2, thread1, "E");
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chSemSignal(&sem1);
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chSemSignal(&sem1);
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chSemSignal(&sem1);
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chSemSignal(&sem1);
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chSemSignal(&sem1);
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test_wait_threads();
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#if CH_USE_SEMAPHORES_PRIORITY
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test_assert_sequence(1, "ADCEB");
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#else
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test_assert_sequence(1, "ABCDE");
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#endif
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threads[0] = chThdCreateStatic(wa[0], WA_SIZE, chThdGetPriority()+5, thread1, "A");
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chSysLock();
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chSemAddCounterI(&sem1, 2);
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chSchRescheduleS();
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chSysUnlock();
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test_wait_threads();
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test_assert(2, chSemGetCounterI(&sem1) == 1, "invalid counter");
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}
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ROMCONST struct testcase testsem1 = {
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"Semaphores, enqueuing",
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sem1_setup,
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NULL,
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sem1_execute
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};
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/**
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* @page test_sem_002 Timeout test
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*
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* <h2>Description</h2>
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* The three possible semaphore waiting modes (do not wait, wait with timeout,
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* wait without timeout) are explored.<br>
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* The test expects that the semaphore wait function returns the correct value
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* in each of the above scenario and that the semaphore structure status is
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* correct after each operation.
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*/
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static void sem2_setup(void) {
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chSemInit(&sem1, 0);
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}
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static msg_t thread2(void *p) {
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(void)p;
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chThdSleepMilliseconds(50);
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chSysLock();
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chSemSignalI(&sem1); /* For coverage reasons */
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chSchRescheduleS();
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chSysUnlock();
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return 0;
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}
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static void sem2_execute(void) {
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int i;
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systime_t target_time;
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msg_t msg;
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/*
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* Testing special case TIME_IMMEDIATE.
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*/
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msg = chSemWaitTimeout(&sem1, TIME_IMMEDIATE);
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test_assert(1, msg == RDY_TIMEOUT, "wrong wake-up message");
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test_assert(2, isempty(&sem1.s_queue), "queue not empty");
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test_assert(3, sem1.s_cnt == 0, "counter not zero");
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/*
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* Testing not timeout condition.
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*/
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threads[0] = chThdCreateStatic(wa[0], WA_SIZE, chThdGetPriority() - 1,
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thread2, 0);
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msg = chSemWaitTimeout(&sem1, MS2ST(500));
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test_wait_threads();
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test_assert(4, msg == RDY_OK, "wrong wake-up message");
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test_assert(5, isempty(&sem1.s_queue), "queue not empty");
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test_assert(6, sem1.s_cnt == 0, "counter not zero");
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/*
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* Testing timeout condition.
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*/
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test_wait_tick();
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target_time = chTimeNow() + MS2ST(5 * 500);
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for (i = 0; i < 5; i++) {
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test_emit_token('A' + i);
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msg = chSemWaitTimeout(&sem1, MS2ST(500));
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test_assert(7, msg == RDY_TIMEOUT, "wrong wake-up message");
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test_assert(8, isempty(&sem1.s_queue), "queue not empty");
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test_assert(9, sem1.s_cnt == 0, "counter not zero");
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}
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test_assert_sequence(10, "ABCDE");
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test_assert_time_window(11, target_time, target_time + ALLOWED_DELAY);
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}
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ROMCONST struct testcase testsem2 = {
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"Semaphores, timeout",
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sem2_setup,
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NULL,
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sem2_execute
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};
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#if CH_USE_SEMSW || defined(__DOXYGEN__)
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/**
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* @page test_sem_003 Atomic signal-wait test
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*
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* <h2>Description</h2>
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* This test case explicitly addresses the @p chSemWaitSignal() function. A
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* thread is created that performs a wait and a signal operations.
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* The tester thread is awakened from an atomic wait/signal operation.<br>
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* The test expects that the semaphore wait function returns the correct value
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* in each of the above scenario and that the semaphore structure status is
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* correct after each operation.
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*/
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static void sem3_setup(void) {
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chSemInit(&sem1, 0);
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}
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static msg_t thread3(void *p) {
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(void)p;
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chSemWait(&sem1);
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chSemSignal(&sem1);
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return 0;
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}
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static void sem3_execute(void) {
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threads[0] = chThdCreateStatic(wa[0], WA_SIZE, chThdGetPriority()+1, thread3, 0);
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chSemSignalWait(&sem1, &sem1);
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test_assert(1, isempty(&sem1.s_queue), "queue not empty");
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test_assert(2, sem1.s_cnt == 0, "counter not zero");
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chSemSignalWait(&sem1, &sem1);
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test_assert(3, isempty(&sem1.s_queue), "queue not empty");
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test_assert(4, sem1.s_cnt == 0, "counter not zero");
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}
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ROMCONST struct testcase testsem3 = {
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"Semaphores, atomic signal-wait",
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sem3_setup,
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NULL,
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sem3_execute
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};
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#endif /* CH_USE_SEMSW */
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/**
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* @page test_sem_004 Binary Wait and Signal
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*
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* <h2>Description</h2>
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* This test case tests the binary semaphores functionality. The test both
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* checks the binary semaphore status and the expected status of the underlying
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* counting semaphore.
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*/
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static msg_t thread4(void *p) {
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chBSemSignal((BinarySemaphore *)p);
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return 0;
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}
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static void sem4_execute(void) {
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BinarySemaphore bsem;
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/* Creates a taken binary semaphore.*/
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chBSemInit(&bsem, TRUE);
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chBSemReset(&bsem, TRUE);
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test_assert(1, chBSemGetStateI(&bsem) == TRUE, "not taken");
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/* Starts a signaler thread at a lower priority.*/
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threads[0] = chThdCreateStatic(wa[0], WA_SIZE,
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chThdGetPriority()-1, thread4, &bsem);
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/* Waits to be signaled.*/
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chBSemWait(&bsem);
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/* The binary semaphore is expected to be taken.*/
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test_assert(2, chBSemGetStateI(&bsem) == TRUE, "not taken");
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/* Releasing it, check both the binary semaphore state and the underlying
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counter semaphore state..*/
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chBSemSignal(&bsem);
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test_assert(3, chBSemGetStateI(&bsem) == FALSE, "still taken");
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test_assert(4, chSemGetCounterI(&bsem.bs_sem) == 1, "unexpected counter");
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/* Checking signaling overflow, the counter must not go beyond 1.*/
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chBSemSignal(&bsem);
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test_assert(3, chBSemGetStateI(&bsem) == FALSE, "taken");
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test_assert(5, chSemGetCounterI(&bsem.bs_sem) == 1, "unexpected counter");
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}
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ROMCONST struct testcase testsem4 = {
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"Binary Semaphores, functionality",
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NULL,
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NULL,
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sem4_execute
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};
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#endif /* CH_USE_SEMAPHORES */
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/**
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* @brief Test sequence for semaphores.
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*/
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ROMCONST struct testcase * ROMCONST patternsem[] = {
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#if CH_USE_SEMAPHORES || defined(__DOXYGEN__)
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&testsem1,
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&testsem2,
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#if CH_USE_SEMSW || defined(__DOXYGEN__)
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&testsem3,
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#endif
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&testsem4,
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#endif
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NULL
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};
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