mirror of
https://github.com/RT-Thread/rt-thread.git
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92 lines
3.0 KiB
C
92 lines
3.0 KiB
C
/*
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* Copyright (c) 2006-2024, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2024-05-20 Shell the first version
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* 2025-11-13 ChuanN Add standardized utest documentation block
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*/
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/**
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* Test Case Name: Drivers Core Test
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*
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* Test Objectives:
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* - Validate the correctness and consistency of the rt_device_find() API in the RT-Thread device management subsystem.
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* - Test rt_device_find() and rt_console_get_device().
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*
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* Test Scenarios:
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* - Locate a known console device by its actual name retrieved at runtime.
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* - Attempt to find the same device using the predefined macro RT_CONSOLE_DEVICE_NAME.
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* - Verify identity consistency when querying the same device through different but equivalent name sources.
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*
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* Verification Metrics:
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* - rt_device_find() must return a non-NULL pointer when a valid device name is provided.
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* - Pointers returned for the same logical device (via different name expressions) must be identical.
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* - When RT_CONSOLE_DEVICE_NAME differs from the actual console name, two distinct but valid devices must be found.
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* - All assertions must pass without triggering test failure.
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*
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* Dependencies:
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* - Hardware requirements: QEMU emulator or any hardware platform that supports RT-Thread with console device registration.
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* - Software configuration:
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* - RT_USING_UTEST must be enabled (select "RT-Thread Utestcases" in menuconfig).
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* - BSP_UTEST_DRIVERS_CORE must be enabled (enable via: RT-Thread Utestcases -> Kernel components -> drivers -> Driver core Test).
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* - Environmental assumptions: The system has initialized the console device before test execution.
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*
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* Expected Results:
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* - The test will pass silently if all assertions hold.
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* - Console will output: "[ PASSED ] [ result ] testcase (components.drivers.core.device_find)".
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*/
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#include <rtthread.h>
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#include <stdlib.h>
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#include "utest.h"
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static void test_rt_device_find(void)
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{
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char _device_name[RT_NAME_MAX + 1] = {0};
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rt_device_t console;
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rt_device_t device1, device2, device3;
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console = rt_console_get_device();
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uassert_not_null(console);
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rt_memcpy(_device_name, console->parent.name, RT_NAME_MAX);
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/* Test finding a device */
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device1 = rt_device_find(_device_name);
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uassert_true(device1 == console);
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/* Test finding another device */
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device2 = rt_device_find(RT_CONSOLE_DEVICE_NAME);
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if (rt_strcmp(RT_CONSOLE_DEVICE_NAME, _device_name) == 0)
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{
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uassert_true(device2 == device1);
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}
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else
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{
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uassert_not_null(device2);
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uassert_true(device2 != device1);
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}
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/* Test finding a device 3 */
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device3 = rt_device_find(console->parent.name);
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uassert_true(device1 == device3);
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}
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static rt_err_t utest_tc_init(void)
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{
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return RT_EOK;
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}
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static rt_err_t utest_tc_cleanup(void)
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{
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return RT_EOK;
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}
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static void testcase(void)
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{
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UTEST_UNIT_RUN(test_rt_device_find);
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}
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UTEST_TC_EXPORT(testcase, "components.drivers.core.device_find", utest_tc_init, utest_tc_cleanup, 5);
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