Flaky Tests & Reliability

Flaky Tests & Reliability

All Flaky Tests & Reliability articles from iTestResults.

Latest Articles

Flaky 6 min read

Why Failure Rate Spikes After a Flake Is Fixed

Fixing a flaky test often causes a short-term failure rate spike. Here's the signal behind it, how to read it, and what ...

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Flaky 6 min read

JMeter Variance vs True Flakiness

JMeter result variance and test flakiness look identical in dashboards. Here's how to separate load-induced noise from g...

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Flaky 6 min read

Failure Clustering Hides Root Causes in Flaky Suites

Failure clustering groups distinct root causes under one label, hiding real flakiness signals. Here's how to split clust...

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Flaky 6 min read

Flake Rate Compounds Across Pipeline Stages

Flake rate multiplies at every dependent pipeline stage. Here's the math, the SQL, and the fixes that actually hold in p...

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Flaky 6 min read

Order Dependency: How It Poisons Your Suite

Order-dependent tests turn single failures into suite-wide noise. Here's how to detect, isolate, and eliminate execution...

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Flaky 6 min read

Flake Rate Resets After a Suite Refactor

Suite refactors reset flake rate metrics without fixing underlying instability. Here's why the numbers lie and how to tr...

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Flaky 6 min read

Retry Count Inflates Pass Rate Without Fixing Flakes

Retry-on-failure masks flaky tests behind a green pipeline. Here's how to measure the real cost and stop papering over i...

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Flaky 6 min read

CI Observability Metrics Beyond Flaky Tests

CI dashboards that stop at flaky-test counts miss the real signal. Here's how to build reliability metrics that drive en...

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Flaky 6 min read

Quarterly Reliability Scorecard for Flaky Tests

A quarterly reliability scorecard template for flaky tests: SQL queries, trend metrics, CI dashboard examples, and the o...

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Flaky 6 min read

Finding Root Causes of Unstable Python Tests

A practical tool for diagnosing unstable Python tests: SQL queries, pytest plugins, CI dashboards, and quarterly scoreca...

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Flaky 6 min read

Failure Sequencing: Infra Flakes vs Logic Flakes

Failure sequencing separates infrastructure flakes from logic flakes using run-order correlation, timing signatures, and...

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Flaky 6 min read

Flake Rate Averages Hide Your Riskiest Tests

Flake rate averages mask the tests most likely to block releases. Here's how to use percentile distributions and recency...

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Flaky 6 min read

Quarantine vs Fix: When to Use Each

Navigate the decision between quarantining or fixing flaky tests with insights into test reliability and engineering effectiveness.

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Flaky 6 min read

The Cost of Flaky Tests (Real Numbers)

Quantify the impact of flaky tests on CI pipelines and learn strategies to mitigate their cost.

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Flaky 6 min read

The Three Patterns of Flakiness Every Team Hits

Identify and resolve the three common patterns of test flakiness to improve CI reliability and reduce false negatives.

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Flaky 6 min read

Flake Budget: Treating Stability as a Resource

Maximize test suite reliability by managing flakiness with a flake budget.

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Flaky 6 min read

Flaky Test Root Cause Analysis: A Decision Tree

Identify and resolve flaky tests effectively using a decision tree approach for reliable CI pipelines.

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Flaky 6 min read

How to Identify Flaky Tests (with Real Data)

Identify flaky tests using real data and tools like Allure and Grafana for CI pipelines.

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