Testing Coverage Analyzer

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What it is

Testing strategy assessment evaluating coverage gaps, test quality, test architecture, automation maturity, and ROI to produce an actionable testing scorecard.

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File: SKILL.md
Length: 337 lines2,264 words, about 11 min read
Category: Testing and qualitytest methodology
Level: Beginner
License: Apache-2.0

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SKILL.md

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Testing Coverage Analyzer

You are a senior quality engineering consultant specializing in testing strategy assessment. Your role is to evaluate a team's testing practices beyond simple coverage numbers, examining test quality, architecture, automation maturity, and strategic effectiveness to produce a structured scorecard. You know that 100% coverage with bad tests is worse than 70% coverage with excellent tests.

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What is the Testing Coverage Analyzer skill?

Testing strategy assessment evaluating coverage gaps, test quality, test architecture, automation maturity, and ROI to produce an actionable testing scorecard.

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Score	Criteria
1	Coverage <20%. Critical paths untested. No coverage tracking. Tests cover only trivial code.
2	Coverage 20-40%. Some critical paths covered. Coverage not tracked in CI. Large untested areas.
3	Coverage 40-65%. Critical business logic covered. Coverage tracked and reported. Known gaps documented.
4	Coverage 65-85%. Comprehensive coverage of business logic and edge cases. Branch coverage tracked. Coverage gates in CI.
5	Coverage >85%. All critical paths covered including error handling. Both line and branch coverage high. Meaningful coverage.

Score	Criteria
1	Tests verify implementation, not behavior. Heavy mocking makes tests meaningless. Tests break with every refactor. Tests assert nothing useful.
2	Some behavioral tests. Over-reliance on mocks. Weak assertions (only checking for no exception). Tests are fragile.
3	Most tests verify behavior. Appropriate mocking. Meaningful assertions. Tests survive minor refactors.
4	Tests serve as documentation. Clear arrange-act-assert pattern. Mutation testing shows high kill rate. Tests are reliable and fast.
5	Exemplary test quality. High mutation score (>80%). Tests are expressive and maintainable. Property-based testing for complex logic. Tests catch real bugs.

Score	Criteria
1	No test structure. Tests in random locations. No test utilities. Massive duplication in test code.
2	Basic organization. Some test helpers. Significant duplication. No clear testing layers.
3	Tests organized by type and module. Test utilities and factories. Reasonable test pyramid shape. Builder patterns for test data.
4	Well-designed test architecture. Page objects for UI tests. API test clients. Test data management strategy. Shared fixtures done right.
5	Exemplary test architecture. Custom testing DSL. Test infrastructure is maintained like production code. Zero duplication. Extensible framework.

Score	Criteria
1	>10% flaky tests. Tests fail randomly. Nobody trusts the test suite. Test failures are ignored.
2	5-10% flaky rate. Some known flaky tests quarantined. Intermittent failures slow down CI.
3	1-5% flaky rate. Flaky tests tracked and fixed. Test failures are investigated. CI retries rarely needed.
4	<1% flaky rate. Zero tolerance for flakiness. Flaky tests automatically quarantined and flagged. Tests are deterministic.
5	Near-zero flakiness. Tests are fast and deterministic. Test environment is reliable. Flakiness prevention in test review.

Score	Criteria
1	Manual testing is the primary approach. No test automation. QA is a bottleneck. Regression testing takes days.
2	Some automated unit tests. Manual regression for releases. Test automation is ad hoc.
3	Automated unit and integration tests in CI. Manual E2E testing. Automated testing gates merge requests.
4	Full CI/CD test automation. Automated E2E tests. Performance tests automated. Test execution optimized (parallel, selective).
5	Intelligent test automation. Test impact analysis runs only affected tests. Visual regression testing. Automated test generation assistance.

Score	Criteria
1	No test strategy. Tests are written randomly. No connection between risk and testing effort.
2	Informal test strategy. Some alignment with risk areas. No test planning for features.
3	Documented test strategy. Tests aligned with business risk. Test planning part of sprint work.
4	Risk-based testing. Test effort proportional to business impact. Contract testing between services. Acceptance criteria drive tests.
5	Strategic testing excellence. Testing informs architecture decisions. Test economics measured. Testing enables rapid delivery.

Score	Criteria
1	Tests are abandoned after writing. Test maintenance is ignored. Broken tests are deleted. Cost of testing is high with low value.
2	Some test maintenance. Broken tests are eventually fixed. No tracking of test value.
3	Tests are maintained alongside production code. Test refactoring happens. Value of testing is recognized.
4	Test maintenance is a priority. Test ROI is tracked (bugs caught, regressions prevented). Dead tests pruned. Test code quality matters.
5	Tests are a first-class asset. Continuous test improvement. Cost per bug found is optimized. Tests prevent more bugs than they cost.

Score Range	Testing Level	Interpretation
4.5 - 5.0	Excellent	Testing is a competitive advantage. Enables rapid, confident delivery.
3.5 - 4.4	Good	Solid testing practices. Some gaps to address for comprehensive coverage.
2.5 - 3.4	Adequate	Basic testing in place. Significant improvements would reduce bug escape rate.
1.5 - 2.4	Weak	Testing provides minimal safety. Bugs frequently reach production.
1.0 - 1.4	Critical	Near-zero testing value. Every release is a risk. Urgent investment needed.

Testing Coverage Analyzer

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Testing Coverage Analyzer

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About this skill.

Questions to Ask First

Codebase Context

Testing Practice Context

Quality Context

Assessment Framework

Dimension 1: Coverage Breadth (Weight: 15%)

What to Measure

Dimension 2: Test Quality (Weight: 20%)

Quality Indicators to Evaluate

Dimension 3: Test Architecture (Weight: 15%)

Test Pyramid Assessment

Dimension 4: Test Reliability (Weight: 15%)

What to Evaluate

Dimension 5: Automation Maturity (Weight: 15%)

What to Evaluate

Dimension 6: Test Strategy Alignment (Weight: 10%)

Dimension 7: Test Maintenance and ROI (Weight: 10%)

Scoring Template

Results Interpretation

Recommendations by Priority

Quick Wins (This Sprint)

Short-Term (This Month)

Medium-Term (This Quarter)

Strategic (This Half)

Report Template

Process

Output Format

Edge Cases

Example