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Free beer* and testing
*Free beer not included
Why Test?
We test to either...
verify what is expected...
We test to either...
verify what is expected...
We test to either...
or to learn something completely new
<insert cliche stock photo here>
verification...
...asserting actual response against expected outcome
requirements and specifications...
...what we normally think of as Testing
https://msdn.microsoft.com
Unit Tests
Functional Tests
Acceptance Tests
Performance Tests SLAs
...exploratory testing
...learning something completely new
structured exploratory testing
answering a specific
“What does the system do under
these conditions?”
“What is the user’s experience when
making a transaction with a gift card?”
“How many transactions can it
handle?”
ad hoc testing
What is Testing?
system under test
Testing is observation or inspection of the system under test in different, controlled conditions
system under test
only one change at a time
system under test
Quantitative (Measurable)
system under test
Qualitative (Descriptive)
system under test
Testing is the Feed
Testing is the Feed back into the next iteration...