The way this all fits together doesn't feel quite right yet since there's
a bunch of wrapping layers that aren't really adding anything except
indirection between the packages, but this is at least a starting point
for child module support.
Signed-off-by: Martin Atkins <mart@degeneration.co.uk>
In other packages we've tried being pragmatic by making the main code
compensate for missing arguments in older tests, so that we don't always
need to update every test across the whole system every time we add a new
feature.
However, that compromise unfortunately tends to lead to non-test code
inadvertently relying on the compensations too, so this is an attempt at
a slightly different compromise where the main code will panic if called
incorrectly but there's an extra helper function for tests to fill in
reasonable "inert" defaults for the fields they leave unpopulated.
Signed-off-by: Martin Atkins <mart@degeneration.co.uk>
