Nicole is a software engineer and writer, and recently wrote about the trade-offs we make when deciding which tests to write and how much testing is enough.
We talk about:
Balancing schedule vs testing
How much testing is the right about of testing
Should code coverage be measured and tracked
Good refactoring can reduce code coverage
Is it worth testing error conditions?
Are rare error codes ok to just monitor?
API drift and autospec
Mitigating risk
Deciding what to test and what not to test
Focus testing on key money-making features
If there's a bug in this part of the code, how much business impact is there?
Performance testing needs to approximately match real world workloads
Cost of a service breaking vs the cost of creating, maintaining, and running tests
Keeping test suites quick to minimize getting distracted
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