Aug 23, 2026 Symbolic Execution Found an Integer Overflow My 94% Test Coverage Missed Your unit tests check specific inputs. Symbolic execution checks every possible input. Here's how it works, what it costs, and where to start. additional-strategiessymbolic-executiontestingverification
Aug 16, 2026 Metamorphic testing found 147 compiler bugs and a self-driving car defect. Here's how it works. Metamorphic testing has uncovered real bugs in GCC, LLVM, Vulkan shader compilers, and ADAS simulators. metamorphic-testingcase-studyproduction-bugstesting
Aug 14, 2026 Most Metamorphic Relations Are Useless. Here's How to Pick the Good Ones. Not all metamorphic relations catch bugs. Weak relations give false confidence while strong ones find real faults. metamorphic-testingmetamorphic-relationstestingoracle-problem
Aug 13, 2026 How do I test code when I don't know the right answer? Metamorphic testing lets you verify code correctness without knowing the exact expected output. metamorphic-testingoracle-problemtestingml
Jul 20, 2026 I stopped copying code into docs by keeping tests, code, and prose in one Markdown file Literate programming keeps documentation, tests, and implementation in sync by making a Markdown file the single source of truth. literate-programmingdocumentationtestingsingle-source-of-truth
Jul 7, 2026 Waiting for race conditions is a terrible testing strategy Why model checking beats days of production runtime for finding concurrency bugs, and how to apply it to your own code. model-checkingrace-conditionsconcurrencytesting
May 26, 2026 Your unit tests pass, but your data still disappears Mocked database tests verify your SQL syntax, not whether rows survive crashes, concurrent writes, or schema mismatches. deep-divesdatabasetestingpersistence
May 25, 2026 Testing Redux without drowning in mock actions Mocking every Redux action turns your tests into a changelog validator. Here's how to test your store with real state transitions instead. deep-divesreduxtestingstate-management
