Improvised Functional Tests for Automotive Testing

Best Poster Session Award Winning Poster by Logica @STC 2012.
Authors - Prasad Kumaran & Vijesh Kumar Bhupathi Raju

Poster Abstract

A major goal of testing in any area of business is achieving high test coverage. In most of the cases, Functional testing is a significant one & covers a major portion of testing. Also this test cover major functions of the end users, attaining 100% of functional test is essential. But, due to some factors like limitation in test environment, delay in code, revised timelines etc affect this functional coverage.

In the automotive testing, on an average 12% of functional tests could not be covered because of the environment limitation & code delay. In contrary, to overcome this blockade by availing adequate test devices & production like test environment will eventually make a significant achievement on the Functional coverage but compromises the project budget.
So, in order to achieve more functional coverage and overcome the blockades, we propose an alternative strategy called “Signals Testing”.

About the Authors

Prasad Kumaran, an Electronics & Communication Engineer works as IT Consultant in Logica (now a part of CGI). He has 5 years of IT experience as a SAP tester in Banking & Finance and Automotive domains.

Vijesh Kumar Raju B is a Biotechnology Graduate from VIT University, Vellore, working as IT consultant in Logica (now a part of CGI). He has 4 years of experience in IT industry as Test Automation Analyst with technical expertise in Visual Basic script, Java and Python and have wide experience in Banking & Finance, Public Sector and Automotive domain.

Transcript

1. IMPROVISED FUNCTIONAL TESTS FOR AUTOMOTIVE TESTING ` HMI WHAT WE TEST Is it possible to, Avail all devices in a test room? All Test devices to each tester? More Budgets can be spent on test devices? Will Manual testing mode helps 100% test coverage? ? NO YES Project can go as is!! WHY ? No need of physical device Reliable & reproducible HOW WE DO? We build the signals from devices & input to HMI CONSTRUCT DEVICE SIGNALS TRANSFORM HMI BUS
2. SIGNAL CONSTRUCTION TRANSFORMATION OUTPUT Pre-Defined Scripts Dynamic link libraries SOF 1 CAN-ID 29 RTR 1 Control 6 Data Field 0 to 64 CRC 16 ACK 2 EOF 7 Create Python Scripts Separate coding for CAN & MOST signals Parsing to APIs These are driver APIs Converts signals to bus understandable format Uses Test frame work OUTPUT TestCAN_Driver.Send(“1, 29, 1, 6, 1, 16, 2, 1”) HMI BUSES SAMPLE CAN CATALOGUE B E N E F I T S