The drawings were confusing, and looking at them showed why: a single stack
ordered by depth put a private network far from the public one it sits behind,
so a gateway's link to the outside ran the full height of the picture through
three networks it had nothing to do with — and two such links overlapped, so
they read as one wire.
Now each public network is followed by everything behind it, depth first. Every
gateway is adjacent to the network it serves, every link is a short stub, and
"behind" is shown by INDENTATION rather than by a line to follow. Gaps are sized
to what they hold, so a gap with no gateway in it takes no room. Transit is not
on a boundary — it reaches every public network at once — so it is stated once
at the top instead of drawing a line to each.
Both sources now order by name rather than by the order the source yielded. The
hypervisor cannot know declaration order, and two pictures laid out differently
cannot be compared, which is the whole point of having both.
Fixed while testing: the gap size and the box placement each decided separately
which network a gateway sat above, and disagreed — reserving the gap above one
sibling while drawing the box above the other, which landed a gateway on top of
a machine in an unrelated network. Both now read one map.
Five new tests, run across every scenario: no link crosses a network it does not
touch, no box is drawn inside a network it is not on, a network behind another
is indented inside it, a public network is not split apart by another group, and
both sources lay the same topology out identically.
jschoubben
54d417fdb2