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Practice

Complete a testing lifecycle

Order the evidence path from contract to regression coverage.

Test evidence matrix

Coverage quality comes from distinct contract cases

Normal
1+
Representative allowed behavior
Boundary
2+
Exact and neighboring values
Invalid
1+
Defined rejection behavior
Regression
Every fix
Previously failing evidence
Planned cases with independent expectations100%
100%

A planned set includes normal behavior, both sides of important boundaries, invalid states, and the exact cases that exposed earlier defects.

Arrange in the correct order
  1. 1. Rerun the relevant suite and retain regression coverage
  2. 2. Investigate any mismatch before changing code
  3. 3. Execute and capture actual results
  4. 4. Record expected results independently
  5. 5. Derive normal, boundary, and invalid cases from the contract