This document discusses unit testing of LabVIEW code. It explains that unit testing is important for checking correctness, completeness, and modularity of software code. It also discusses the challenges of writing tests to cover critical parts of code and measuring that coverage. Finally, it summarizes some tool options for unit testing LabVIEW code, including InstaCoverage, and provides a roadmap for the future development of InstaCoverage.

1. Advanced Unit Testing LabVIEW Code / instacoverage.io

2. LabVIEW Unit Testing
Outlook & Tutorial

3. Advanced Unit Testing LabVIEW Code / instacoverage.io
Peter Bokor
InstaCoverage team lead at IncQuery Labs
Barnabas Reischl
InstaCoverage engineer at IncQuery Labs

4. Advanced Unit Testing LabVIEW Code / instacoverage.io
Unit Testing – Why?

5. Advanced Unit Testing LabVIEW Code / instacoverage.io
Correctness & Completeness
Test your SW for correctness (common sense, V model etc.)
EXAMPLE
Divide(6,3) = 2 PASSED
Test your SW for completeness/”coverage” (ISO etc.)
EXAMPLE
Divide(6,0) = 0 FAILED
Test your SW units (divide and conquer/modularity)
EXAMPLE
Add(3,Divide(6,0)) = 3 FAILED (‘Add’ or ‘Divide’ failed?)

6. Advanced Unit Testing LabVIEW Code / instacoverage.io
A LabVIEW example
Challenge 1: write test for critical (“cover critical”)
Challenge 2: measure that critical is tested

7. Advanced Unit Testing LabVIEW Code / instacoverage.io
Coverage
▪ Avoid untested code
▪ Prove reachability (no “dead code”)
▪ Required by
▪ Standards, e.g., ISO 26262
▪ Companies

8. Advanced Unit Testing LabVIEW Code / instacoverage.io
Unit Testing LabVIEW code – Tool options

9. Advanced Unit Testing LabVIEW Code / instacoverage.io
Unit testing tool alternatives for LabVIEW

10. Advanced Unit Testing LabVIEW Code / instacoverage.io
MEMS Mics Test – Running example

11. Advanced Unit Testing LabVIEW Code / instacoverage.io

12. Advanced Unit Testing LabVIEW Code / instacoverage.io
TBMP 280 – Configure.vi
@myRIO
DUT
configure in-range clock rate
configure out-range clock rate
Setup
TEST
CASE
TEST
CASE
expected = no error + chip ID
expected = error
Teardown
TEST
CASE
TEST
CASE
COVERAGE <100%Unit test VI under test

13. ISSUE [COVERAGE]:
Not reproducible

14. Advanced Unit Testing LabVIEW Code / instacoverage.io
Demo – InstaCoverage

15. Advanced Unit Testing LabVIEW Code / instacoverage.io
Quo vadis InstaCoverage? – Roadmap

16. Advanced Unit Testing LabVIEW Code / instacoverage.io
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