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TESTER’S ANXIETIES
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my name is Alex
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my name is Alex
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my name is Alex @p0deje
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my name is Alex @p0deje
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my name is Alex @p0deje
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my name is Alex @p0deje
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TESTER’S ANXIETIES
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Test automation "
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Test automation Performance testing "
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Test automation Performance testing Security testing "
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Organizing testing process #
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Organizing testing process Agile testing #
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Organizing testing process Agile testing Test management #
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Any talks about testers?
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What bothers me most as a tester?
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↖ ⬆ ↗ ⬅ ➡ ↙ ⬇ ↘
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Do agile teams need testers?
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Do agile teams need testers? Should testers fix bugs?
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So, you want to release? Tell me more about how we roll it back when we’re screwed
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Contradictions + Cautiousness = Anxiety
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Contradictions + Cautiousness = Anxiety
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Contradictions + Cautiousness = Anxiety
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TESTER’S ANXIETIES
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MY ANXIETIES
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.
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. Cultural studies English
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✍ Technical writer Software tester
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✍ Technical writer Software tester
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“All I need to do is use the application, write down problems and they also pay me for this? How awesome is that!” Brand New Tester
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logging bugs > doing testing = logging bugs < doing testing = logging bugs ≃ doing testing =
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logging bugs > doing testing = logging bugs < doing testing = logging bugs ≃ doing testing =
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logging bugs > doing testing = logging bugs < doing testing = logging bugs ≃ doing testing =
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logging bugs > doing testing = logging bugs < doing testing = logging bugs ≃ doing testing =
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logging bugs > doing testing = logging bugs < doing testing = logging bugs ≃ doing testing =
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logging bugs > doing testing = logging bugs < doing testing = logging bugs ≃ doing testing =
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6
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6 Test automation
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Test automation Performance testing 6
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Testing is easy 6
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Testing is hard 6
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Testing is hard
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I DON’T KNOW HOW TO TEST
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Boundary value analysis Equivalence partitioning Pairwise testing Decision tables
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Boundary value analysis Equivalence partitioning Pairwise testing Decision tables
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Boundary value analysis Equivalence partitioning Pairwise testing Decision tables
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Boundary value analysis Equivalence partitioning Pairwise testing Decision tables
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Boundary value analysis Equivalence partitioning Pairwise testing Decision tables
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How to test?
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How to test? 9
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How to test?
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Object-oriented programming Functional programming
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Object-oriented programming Functional programming DRY SOLID YAGNI
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Design patterns Books Object-oriented programming Functional programming DRY SOLID YAGNI
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Programming Testing Analysis Decomposition Analysis Decomposition Composition Synthesis
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Programming Testing Analysis Decomposition Analysis Decomposition Composition Synthesis
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Programming Testing Analysis Decomposition Analysis Decomposition Composition Synthesis
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A tester is ;<
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A tester is ;<
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A tester is ;=
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How to test?
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How to test? 9
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How to test?
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Keep looking for the answer
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Automated testing vs Manual testing
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Automated testing vs Manual testing
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Automated testing vs Manual testing
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DO I AUTOMATE ENOUGH?
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Database Front-end Server Search engines Analytics Assets 3rd party integrations
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Unit tests
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Unit tests Integration tests
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Unit tests System tests Integration tests
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Unit tests System tests Exploratory testing Integration tests
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Unit tests UI tests Exploratory testing Integration tests
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Unit tests Integration tests UI tests Exploratory testing API tests
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Unit tests Integration tests UI tests Exploratory testing API tests
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Unit tests Integration tests UI tests Exploratory testing API tests
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PRODUCTION
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PRODUCTION Unit tests System tests Integration tests
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PRODUCTION
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PRODUCTION I am a server config syntax error!
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PRODUCTION Unit tests System tests Integration tests
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PRODUCTION System tests Integration tests
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PRODUCTION
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PRODUCTION I am an invalid input error!
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PRODUCTION Unit tests System tests Integration tests
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PRODUCTION Unit tests Integration tests
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PRODUCTION
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PRODUCTION I am a broken contract between API and front-end!
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DO I AUTOMATE ENOUGH?
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Can I write a good test on this level? Unit tests System tests Exploratory testing Integration tests
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Can I write a good test on this level? Unit tests System tests Exploratory testing Integration tests
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Can I write a good test on this level? Unit tests System tests Exploratory testing Integration tests
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Can I write a good test on this level? Unit tests System tests Exploratory testing Integration tests
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Do I automate too much?
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Tests are dumb
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I DON’T TRUST MY TESTS
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Arrange Act Assert
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Arrange Act Assert
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Arrange Act Assert
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Arrange Act Assert
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Arrange Act Assert
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6 Uses available data Shares data between tests Uses data that is told to use Should not share data between tests
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6 Uses available data Shares data between tests Uses data that is told to use Should not share data between tests
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6 Uses available data Shares data between tests Uses data that is told to use Should not share data between tests
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6 Uses available data Shares data between tests Uses data that is told to use Should not share data between tests
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6 Uses available data Shares data between tests Uses data that is told to use Should not share data between tests
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Online shop
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Online shop Add item to cart Update item in cart Remove item from cart Checkout
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Online shop Add item to cart Update item in cart Remove item from cart Checkout 6
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Online shop Add item to cart Update item in cart Remove item from cart Checkout 6
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Online shop Add item to cart Update item in cart Remove item from cart Checkout 6
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Online shop Add item to cart Update item in cart Remove item from cart Checkout 6
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Online shop Add item to cart Update item in cart Remove item from cart Checkout 6
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Online shop Add item to cart Update item in cart Remove item from cart Checkout 6
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Online shop Add item to cart Update item in cart Remove item from cart Checkout 6
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Online shop Add item to cart Update item in cart Remove item from cart Checkout 6
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6 Less deterministic More deterministic
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How can we make tests less deterministic?
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Model-based testing
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Usual test Model-based test Determine the exact steps Describe the possible states and steps between them
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Usual test Model-based test Determine the exact steps Describe the possible states and steps between them
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no items in cart
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no items in cart item in cart Add item to cart
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Less deterministic Improved test coverage Same execution time
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Less deterministic Improved test coverage Same execution time
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Less deterministic Improved test coverage Same execution time
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Arrange Act Assert
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Arrange Act Assert
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Arrange Act Assert
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Test oracle ☝
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6
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Combinatorial problems
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Period of being a customer Country # of purchases Average time on site
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Period of being a customer Country # of purchases Average time on site 42%
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Randomized input Neural network System under test Compare
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Unit tests System tests Exploratory testing Integration tests
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Unit tests System tests Exploratory testing Integration tests
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I DON’T KNOW HOW TO TEST
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KEEP LEARNING “THIS IS FINE”
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I DON’T KNOW IF I AUTOMATE ENOUGH
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USE TEST PYRAMID
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I DON’T TRUST MY TESTS
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DON’T WRITE MORE TESTS, MAKE TESTS SMARTER
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WHAT ARE YOUR ANXIETIES?
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WHAT ARE YOUR ANXIETIES? @p0deje p0deje@gmail.com
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WHAT ARE YOUR ANXIETIES? @p0deje p0deje@gmail.com
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my name is Alex @p0deje p0deje@gmail.com