Test metrics

// 7 metrics · updated may 2026

Metrics that measure how well your tests work — coverage, reliability, speed, and traceability. Calculators included with industry benchmark data where it exists.

Showing 7 of 7 metrics

Test coverage (code coverage)= covered LOC ÷ total LOC × 100%

The percentage of production code exercised by at least one test — a floor metric for finding test suite gaps.

benchmark
Test automation ratio= automated tests ÷ total tests × 100%

The percentage of your test suite that runs without manual execution — a measure of scalable testing capacity.

benchmark
Test pass rate= passing tests ÷ total tests × 100%

The percentage of tests that pass in the most recent run — a simple health indicator for your test suite's current state.

benchmark
Test flakiness rate= flaky test runs ÷ total runs × 100%

The percentage of test runs where the same test produces different results without a code change — a test reliability metric.

benchmark
Test execution time= total wall-clock time per suite run

The wall-clock time to run your test suite — a key factor in whether engineers actually use the suite before pushing.

qualitative
Requirements traceability coverage= requirements with linked tests ÷ total requirements × 100%

The percentage of requirements with at least one linked test — a coverage measure used most in regulated-industry QA.

qualitative
Defect detection percentage (DDP)= defects found in phase ÷ total defects in product × 100%

The fraction of product defects caught in a given phase — a measure of how effective each quality gate is.

qualitative

// Continue exploring

Defect metrics

Defect density, escape rate, severity distribution, mean time to detect and repair.

6 metrics

Process metrics

DORA metrics (deploy frequency, lead time, change failure, MTTR), cycle time.

5 metrics