These numbers print. A packet is handed to a reader on paper: no hover, no
tooltip, no correction, no redeploy. So the arithmetic lives in its own module
and is asserted against the shipped data rather than a fixture.
DOXA IS NOT A SLICE. Of its 2,107 groups, 2,082 are unreached and 1,745 are
frontier, so 25 are not unreached at all and 362 are not frontier. That is one
group in six. A chart drawing DOXA as a fourth band nested inside frontier
misstates 17.2% of the list with a clean shape and no error of any kind, which
is why steps and overlays are different props and an overlay reports whether it
is a slice rather than being assumed to be one. upg100 asked for the numbers to
reach the caption as text too, because a printed band nobody can hover over
explains nothing.
Three bugs I wrote, each caught by an assertion rather than by review:
The publisher warning sat in the wrong function. I put "Joshua Project counts
16,426 where IMB counts 12,379" into the nesting error, and the test proved the
claim false: 16,426 on top of 12,379 is perfectly monotonic. The two are not the
same kind of count, and no comparison of magnitudes can see that, so it needed a
separate check reading what the numbers are OF. An error message naming a cause
its own code cannot detect sends the next reader to look for the wrong thing.
A percent read as a fraction filled 3,189 cells of 5,200 instead of 32. My
heuristic was "above 1 means percent", and pctEvangelical is 0.6133, which is a
valid fraction and a valid percent with nothing in the value to separate them.
The refusal I added catches a percent of 1 or more and provably cannot catch
ours, and every share this packet prints is below 1% because the subject is
unreached peoples. So the guard is not the protection, the name is:
fractionFromPercent states the unit in the source line. Both halves are
asserted, including the half that does not work, because a guard believed to
cover more than it does is the worse failure.
And the rounding flags were untested until the test used values that could
reach them. 0.6133% of 5,200 is 31.9 cells; the reader sees 32 and cannot see
31.9, so the exact value goes in the caption and a share too small to fill one
cell is flagged rather than drawn as one.
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