1.Robotframework
其它語言的關鍵字用空格區分，robot用兩個空格區分。例如下列代碼：
相當於: select_radio_button(Gender='M')，input_text(&FirstName,"David"）
子函數稱為customized keyword例如launchBrower(appurl, appnrowser)：
(402) Part1- Introduction to Robot Framework | Environment Setup | Selenium with Python - YouTube
中文手册：https://robotframework-userguide-cn.readthedocs.io/zh-cn/latest/CreatingTestData/TestDataSyntax.html
Ride IDE：https://www.softwaretestinghelp.com/getting-started-with-robot-framework-ride/
用串口库：https://github.com/whosaysni/robotframework-seriallibrary
course: https://zhuanlan.zhihu.com/p/158122663 https://github.com/robotframework/QuickStartGuide
pip install robotframework #it might be under .local so add path if needed
robot --version
pip install -U wxPython #not sure do we need it
pip install robotframework-ride #ride is IDE
python -m robotide.__init__ 看到是ride v2.0.8.1，File|new project创建robot_test, Editor|Setup，大窗口输入First test case，Text edit里输入如下，保存，Run。
第一个例子hello.robot只需2行，用robot hello.robot运行：
Testcase1
log Hello, World!
第二个是python语言例子：
import os
import sys
class RobotTest:
def first_keyword(self):
fp = open("/tmp/robot_fk", "a")
fp.write("this is the first keywordrn")
fp.close()
Robot的测试用例和配置使用HTML，TXT等格式文件进行编辑，html是比较常用的一种格式，通过html绘制的表格形式来编辑用例可阅读性较高。
Robot通过识别html表格中的表头来确定该表格的配置是做合使用，例如Settings用来配置资源库，Test Cases用来编辑测试用例，Variables用来配置默认的变量等等。
每个robot工程开始工作时会通过Settings加载相关的资源，通常为TestLib，或者导入其他的配置文件等等，然后找到所有的Test Cases表格并顺序执行每个case。每个测试用例的每个步骤通常都是有一个关键字来执行操作该步骤。Robot会去Settings中指定的library中寻找该关键字，如果找到则执行该关键字所对应的代码，如果在Lib代码中无法找到该关键字，则寻找html的表中表头为Keywords的表格，如果也无法找到则会报错。执行测试用例时每个步骤都执行完且没有报错，则认为该条用例为pass。
2.CMocka
https://blog.csdn.net/benkaoya/article/details/100933141
https://www.samlewis.me/2016/09/embedded-unit-testing-with-cmocka/
#include "tmp101.h"
static const float TMP_BIT_RESOLUTION = 0.0625;
float tmp101_get_temperature(void)
{
// Need to set the TMP101 pointer register to point to the temp register
uint8_t pointer_address = 0;
i2c_transmit_blocking(TMP101_ADDRESS, 0, &pointer_address, 1);
// The TMP101 stores 12 bit samples that are retrieved in two byte blocks
uint8_t data[2];
i2c_read_blocking(TMP101_ADDRESS, 0, &data[0], 2);
// the 1st byte is bits 12 to 4 of the sample and the 2nd byte is bits 4 to 0
// see page 16 of the TMP_101 datasheet
uint16_t temperature_bits = (data[0] 4) | (data[1] >> 4);
// The 12 bit sample is represented using 2s complement, for simplicity
// (and because there's no 12 bit int representation), scale up the sample
// to 16 bits and adjust the bit resolution when converting later
int16_t temperature = temperature_bits 4;
// shift the sample back down and convert by the TMP_101 bit resolution
return ((temperature / 16) * 0.0625f);
}
要在没有硬件的环境下测试它，需要编一个void __wrap_i2c_read_blocking()以取代读物理设备的i2c_read_blocking()，然后在连接时指定它：--wrap=i2c_read_blocking -Wl。下面这段程序测试负温度下得程序运行：先用will_return()预存-25在mock_type中，然后assert_true()调用tmp101_get_tempearature()，继而调用__wrap_i2c_read_blocking()，而后者返回mock_type的值。
读取will——return
static void test_negative_temperature(void **state)
{
will_return(__wrap_i2c_read_blocking, 0b11100111);
will_return(__wrap_i2c_read_blocking, 0b00000000);
assert_true(tmp101_get_temperature() == -25);
}
3.Unity
因ARM SCP用Unity和Mocka https://github.com/ARM-software/SCP-firmware/blob/master/unit_test/user_guide.md，看了下与Mocka类似啊：
https://blog.csdn.net/weifengdq/article/details/106221522?
4. Other test tool
https://www.capterra.com/sem-compare/automated-testing-software/
https://en.m.wikipedia.org/wiki/List_of_unit_testing_frameworks
