Editing Test Traceability Matrix (section)

== 2. Test Levels and Types ==

<span id="unit-tests-ut"></span>
=== 2.1 Unit tests (UT) ===

Test a single COBOL program in isolation using a synthetic control block. No real database or print file is required; stubs or mocks may be used.

'''Target programs:''' primesgen (sieve logic), primes (SQL operations), primesui (print formatting)

<span id="integration-tests-it"></span>
=== 2.2 Integration tests (IT) ===

Test two or more programs working together. Typically: primesgen + primes (with a real database), or primesgen + primesui (with a real print file).

<span id="system-tests-st"></span>
=== 2.3 System tests (ST) ===

Test the complete stack end-to-end: compile all programs, set up the database, run primesmain with a command-line argument, inspect all outputs.

<span id="non-functional-tests-nft"></span>
=== 2.4 Non-functional tests (NFT) ===

Test quality attributes: performance, security (credential exposure), operability (return code, log completeness).


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<span id="requirements-coverage-matrix"></span>