[Code Quality] Add unit tests for compiler_custom_jobs.go

[github-actions]

Description

compiler_custom_jobs.go is a 923-line file with 31 functions containing complex custom job extraction logic but has no dedicated test file. This is the lowest-scoring dimension (10/20) for this file, which overall scored 67/100 in the daily compiler quality audit.

Suggested Changes

• Create compiler_custom_jobs_test.go with unit tests
• Prioritize coverage for the three most complex functions:
  • buildCustomJob
  • configureCustomJobSteps
  • applyBuiltinJobNeedsAugmentations
• Target ≥80% test coverage for this file

Files Affected

• pkg/workflow/compiler_custom_jobs.go (923 lines, 31 functions)
• pkg/workflow/compiler_custom_jobs_test.go (new file)

Success Criteria

• compiler_custom_jobs_test.go exists with meaningful test cases
• All three priority functions have test coverage
• make test passes with the new test file
• Cyclomatic complexity hotspots (configureCustomJobSteps, applyBuiltinJobNeedsAugmentations) each have ≥3 test scenarios

Source

Extracted from Daily Compiler Code Quality Report - 2026-07-19 #46513

Priority

High — 923 lines of custom job logic with zero test coverage is a significant maintainability risk

🔍 Task mining by Discussion Task Miner - Code Quality Improvement Agent · 83.8 AIC · ⌖ 5.28 AIC · ⊞ 7K · ◷

• expires on Jul 19, 2026, 11:45 PM UTC-08:00