How the Grinch Stole How the Grinch Stole TestingTesting

Noise, Noise, Noise! Noise, Noise, Noise!

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The Grinch didn’t think very much

of testing,In fact he found

the whole process un-resting.

The Grinch didn’t think very much

of testing,In fact he found

the whole process un-resting.

All the Noise Noise Noise

What is Noise?

Incorrect messages

Unhelpful messages

Irrelevant messages

Anything I don't need to hear

Anything I don't want to hear

Why is Testing Noisy?

Poor tools

Poor config

Poor strategy

Poor design

Poor policy

Test Design

Plan

Code review

Does the test prove my point?

Does failure pinpoint the problem?

Test Configuration

Testing code you won't change

Running tests you plan to fix "someday"

- someday will never come

Toning it Down

Suppressions

Unit test assertions

Static analysis

By file

By type

By age

By severity

Parasoft Proprietary and Confidential 8

Test Maintenance

Run regularly – Entropy Increases

Turn off low value to noise ratio tests

Keeping it clean is better than periodic mass cleaning

Relavence

Am I testing for things that are happening

QA results

Code reviews

field bugs

For things expected to happen?

Security

performance

Risk management

Will it happen?

Is it worth preventing?

Owasp top ten example

Q&A

Email

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Parasoft Proprietary and Confidential

Inspired by “How the Grinch Stole Christmas” by Doctor Seuss