Kelly Mears

KnowledgeDomain 06

Testing & Verification

Establishing that something works, and recognizing when you have established nothing.

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Links outward
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Knowledge graph: 96 notes, 210 links.Each dot is a note, sized by how many links it has and colored by topic. Focus or hover a dot to isolate it and its neighbors; activate it to open the note. The graph is a single tab stop: use the arrow keys to move between notes, Home and End for the most and least linked, Enter to open the focused note, and Escape to leave the graph.Ground TruthSilent FailureDeterminismRoot Cause AnalysisFalsifiabilityGoodhart's LawLarge Language ModelAccessibilityTruncation BiasVacuous TruthReproducible CaseObservabilityIdempotenceNondeterminismRace ConditionContinuous IntegrationModule GraphBig-O NotationProcessRegressionChesterton's FenceFail FastUnit TestFlaky TestHallucinationInstrumentationMotion DesignTime ZoneComponent StoryCoverage GateFactory GamePortalSchema ValidationSurvivorship BiasToken BudgetAssertionCharacter EncodingCode CoverageFocus ManagementImmersive SimRecord and Replay TestingDaemonEvaluation HarnessStacking ContextTest FixtureBranch CoverageBundlerDefensive DefaultFingerprintIntegration TestReduced MotionResource StarvationStreetlight EffectTest DoubleVisual Regression TestingBattle RoyalecontenteditableSchema DriftSubagentBinary SearchCargo CultGit WorktreeGlobHeadless BrowserLeast Recently Used CacheLLM-as-JudgeMulti-Agent OrchestrationResponsive BreakpointTest-Driven DevelopmentUnreachable CodeEasingFan-Out and Fan-InMonadPure FunctionStacked Pull RequestsTree ShakingHeisenbugRollbackSeed DataStaggered AnimationCanary ReleaseImmutabilityInterpreterSmoke TestWebhookActor ModelContract TestingEvent LoopMutation TestingCircuit BreakerConcurrency and ParallelismOptimistic LockingSnapshot TestingGolden File TestingPessimistic LockingProperty-Based Testing

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Where it reaches

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The hubs

Race Condition

A defect whose occurrence depends on the relative timing of concurrent operations.

Testing & Verification22 connections

Unit Test

A fast, isolated test of one unit of behavior with its collaborators replaced.

Testing & Verification18 connections

Flaky Test

A test that passes and fails on identical input, and the most corrosive thing a suite can contain.

Testing & Verification17 connections

Instrumentation

Adding measurement to code so its execution can be observed, and the distortions that introduces.

Testing & Verification17 connections

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