Tag
test-isolation
- Nov 10, 2025 Fixture Scoping and the Lifetime of Shared Test State How setup and teardown become a dependency graph with scoped lifetimes, why a session-scoped object couples tests that never mention each other, and how teardown failures are attributed. developer tools
- Oct 2, 2025 Sources of Nondeterminism That Make Tests Flaky The mechanisms behind intermittent test failures — scheduling, clocks, unordered iteration, unseeded randomness — and the controls that make each source reproducible rather than merely rarer. software engineering
- Mar 23, 2025 Deterministic Time and Randomness in Test Suites Why a test that reads the system clock or the global random generator is not reproducible, how injected clocks differ from frozen ones, and how seeding makes a failure replayable. developer tools
- Aug 1, 2024 Fixture Isolation and the Cost of Shared Test State How ordering dependencies and leaked state turn a suite into a fragile sequence, and the four isolation strategies that restore independence at different prices. software engineering
- Jun 2, 2023 Isolation Boundaries: In-Process, Subprocess, and Sandboxed Tests What leaks between tests that share an address space, what a process boundary actually buys, and why sandboxing undeclared inputs changes which failures are possible. developer tools