Re-measure the coverage entry against the tree this branch creates

84.9% line / 63.8% branch, 454 tests -> 87.1% line (2025/2324), 69.1% branch
(974/1410), 502 tests in 71 classes, as #132 and #133's ten children land.

The entry already instructs re-measuring before quoting, and that is why this is
here rather than in the batch: quoting these numbers before the work merged would
have described a tree that did not exist. It nearly went wrong the other way too
-- the first measurement for this commit was taken against a main that was three
merges stale and read 85.1%.

Also says something the bare numbers do not. Branch moved 5.3 points against
line's 2.2, and that asymmetry is the expected shape of this kind of work rather
than a curiosity: those children targeted decision code -- enum fallbacks,
refusal arms, cursor shapes, a `when` over container rules -- where one test
chooses a branch the suite had never taken. Line coverage barely notices that.
Branch coverage is the whole point.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
2026-08-27 09:01:40 -05:00
co-authored by Claude Opus 5
parent 83ac7eff2c
commit 2d4898ad44
+15 -7
View File
@@ -130,8 +130,9 @@ install for code that can never run — and on API 37 the full APK does not fit
- The `model` package is excluded from `ReturnCount` and `CyclomaticComplexMethod` only. It is the
decision layer, where one branch is one documented user-visible outcome and the metric counts
answers rather than complexity. Every other rule still applies there.
- **Coverage is reported, not gated** — **84.9% of lines (1971/2321), 63.8% of branches**,
measured 2026-08-26 with `./gradlew :app:jacocoTestReport`, against 454 JVM tests in 67 classes.
- **Coverage is reported, not gated** — **87.1% of lines (2025/2324), 69.1% of branches
(974/1410)**, measured 2026-08-27 with `./gradlew :app:jacocoTestReport`, against 502 JVM tests
in 71 classes.
**Every figure this file carried before 2026-08-24 was an artifact, roughly half the real one.**
Robolectric loads classes through its own sandbox classloader with no source location, JaCoCo
@@ -147,12 +148,19 @@ install for code that can never run — and on API 37 the full APK does not fit
disproportionately Robolectric, so each one added denominator and no numerator — the measurement
was punishing exactly the tests that were hardest to write.
Two things still hold. A floor needs a baseline that has settled, and this one has not: it moved
39 points in a single build change on 2026-08-24, then another 16 as the #52 test push and the
Two things still hold. A floor needs a baseline that has settled, and this one has not. It moved
39 points in a single build change on 2026-08-24; then another 16 as the #52 test push and the
fixes it turned up landed — 69.2% -> 84.9% line, 53.2% -> 63.8% branch — while the denominator
grew 2194 -> 2321, because that work added production code of its own. And **re-measure before
quoting**: this entry was written quoting 81.4%, measured four hours earlier, and was already
three points stale by the time it was ready to merge.
grew 2194 -> 2321, because that work added production code of its own; then again on 2026-08-27
as #132 and #133's ten children landed — 84.9% -> 87.1% line, 63.8% -> **69.1%** branch, 454 ->
502 tests. **Branch moved four times as far as line that last time**, and that is the shape to
expect from this kind of work rather than a surprise: those children targeted decision code —
enum fallbacks, refusal arms, cursor shapes, a `when` over container rules — where one test
chooses a branch the suite had never taken. Line coverage barely notices; branch coverage is the
whole point.
And **re-measure before quoting**: this entry was once written quoting 81.4%, measured four hours
earlier, and was already three points stale by the time it was ready to merge.
- **Testable code is not done until it is tested.** If a piece is unit testable, it gets unit
tests before it counts as done. If it is e2e testable, it gets e2e tests. Both clauses apply —
a change that is both needs both.