record/coverage [20260422-192751]

[rnagulapalle]

No description provided.

[rnagulapalle]

I traced this failure to the coverage gate, not to a functional test regression.

Diagnosis

• fetch_ci_log for job 72574000153 shows JaCoCo failing during mvn -B verify with: lines covered ratio is 0.40, but expected minimum is 0.80.
• get_pr_diff shows this PR adds two new methods in src/main/java/com/phalanx/calc/MathOps.java: percentage(...) and average(...).
• read_file on src/test/java/com/phalanx/calc/MathOpsTest.java showed the test suite still only covered add/subtract/multiply/divide, so the new lines introduced by this PR were untested.
• git_blame confirms the uncovered lines were introduced in this PR's head commit, so this is PR-local rather than a preexisting main-branch issue.

What I changed

I added focused JUnit coverage for the new methods in src/test/java/com/phalanx/calc/MathOpsTest.java, including:

• normal percentage cases
• percentage(..., 0) exception behavior
• normal average cases
• empty-array exception behavior

Verification

I had the coder subagent apply only that test-file change and re-run the original failing command exactly:

mvn -B verify

That command now passes, and JaCoCo reports All coverage checks have been met.

I’m pushing the verified fix to your PR branch now.