Embedded Software Testing

Importance of software testing in embedded systems

Types of software testing: unit, integration, system, acceptance

Verification and validation processes

Overview of the Software Testing Life Cycle (STLC)

Introduction to ISTQB standards and testing principles

Developing test strategies and planning test environments

Resource allocation, risk assessment, and scheduling

Analyzing testable requirements and creating traceability matrices

Defining test objectives and criteria using use case analysis

Applying boundary value analysis and equivalence partitioning

Designing test cases using black-box and white-box techniques

Developing test cases for hardware-software interactions

Creating functional and non-functional test scenarios

Testing real-time behavior and communication protocols

Practical exercises on GPIO, timers, UART, SPI, I2C, and ADC testing

Introduction to Cmocka and its features

Writing unit tests using mocks, stubs, and assertions

Test-driven development (TDD) for embedded systems

Unit testing for device drivers and algorithms

Implementing mocks to simulate hardware peripherals

Understanding code coverage metrics: statement, branch, and path coverage

Using gcov and lcov for coverage analysis

Generating and interpreting coverage reports

Applying coverage data to identify untested code paths

Ensuring compliance with safety-critical software standards

Performing top-down and bottom-up integration testing

Developing stubs and drivers for interface testing

Conducting system-level testing for performance, stress, and reliability

Debugging test failures using tools like GDB and J-Link

Generating test reports and documenting results