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Series
In this series, I will introduce the test driven development using C
How often firmware engineers expose to unit testing? This was an unusual topic to me at first while I have worked as firmware engineer for microcontrollers. Most of microctonroller applications are still developed in C or C++. In the past, while yo...
How to set up Ceedling From last post, Ceedling was introduced as a unit testing framework for C. In this post, I want to show how to set up Ceedling and how to use Ceedling with the simple example. Ceedling is required to install ruby. I download...
In general, firmware cannot be discussed without hardware dependency in embedded systems. For example, the led_controller module needs to use functions from the interface_gpio module to control hardware. When we need to unit test this type of interfa...
Auto-generated mock files in Ceedling provide Ignore and Expect functions as well as the StubWithCallback function. Here is an example of StubWithCallback use case: external EEPROM can be accessed via specific SPI commands such as read byte and write...
Test Driven Development is required to go through multiple times of small changes in production code and test code concurrently. It would be nice to have GUI IDE to load all files in one workspace. Also, you might want to debug test code during run-t...
Before starting TDD, we need software spec and test cases. Our goal is demonstrating software development process with a simple example:fizzbuzz problem. Here is software spec for fizzbuzz problem: if given number is divided up by 3, print fizz. ...
