And delete the old MakeTestGraph function.
Here we need to update some of our unit tests to ensure that any updates
to existing nodes or channel policies have newer timestamps. This is so
that we don't violate our SQL DB constraints that prevent updates to a
node or channel policy record if the new update is not newer (has a
newer LastUpdate time) than the currently presisted record).
Which lets us run `TestNodeIsPublic` against our SQL DB backends.
Note that we need to tweak the tests a little bit so that
`AddLightningNode` for the same node is always called with a newer
LastUpdate time else it will fail the SQL constraint that only allows
the upsert if the update is newer than the persisted one.
Here we implement the SQLStore methods:
- MarkEdgeZombie
- MarkEdgeLive
- IsZombieEdge
- NumZombies
These will be tested in the next commit as one more method
implementation is required.
In the graph/db code, we should always expect to deal with potentially
nil ChannelEdgePolicy pointers and so we should always do a nil check
before making use of the struct.
Here we add the `ForEachNodeDirectedChannel` and `ForEachNodeCacheable`
SQLStore implementations which then lets us run
`TestGraphTraversalCacheable` and `TestGraphCacheForEachNodeChannel`
against SQL backends.
Ensure that it does a sanity check on the length of its input and also
only call it if the nullable SQL string is not null.
Expand an existing unit tests to cover the DecodeHexColor such that it
would have caught the bug.
Use a length check to determine if a bitcoin signature has been set or
not. Also add a clarifying comment to explain why we only need to check
if one signature field is set to determine if we have the auth proof for
the channel or not.
In this commit, the ForEachSourceNodeChannel implementation of the
SQLStore is added. Since this is the first method of the SQLStore that
fetches channel and policy info, it also adds all the helpers that are
required to do so. These will be re-used in upcoming commits as more
"For"-type methods are added.
With this implementation, we convert the `TestForEachSourceNodeChannel`
such that it is run against SQL backends.
In this commit, the various SQL queries are defined that we will need in
order to implement the SQLStore UpdateEdgePolicy method. Channel
policies can be "replaced" and so we use the upsert pattern for them
with the rule that any new channel policy must have a timestamp greater
than the previous one we persisted.
As is done for the KVStore implementation of the method, we use the
batch scheduler for this method.
Elle Mouton