* Notify collators about seconded collation
This pr adds functionality to inform a collator that its collation was
seconded by a parachain validator. Before this signed statement was only
gossiped over the validation substream. Now, we explicitly send the
seconded statement to the collator after it was validated successfully.
Besides that it changes the `CollatorFn` to return an optional result
sender that is informed when the build collation was seconded by a
parachain validator.
* Add test
* Make sure we only send `Seconded` statements
* Make sure we only receive valid statements
* Review feedback
* include new parameter in test `Configuration`
* update calls to `init_logger`
* "Update Substrate"
* cargo update -p sp-io
Co-authored-by: Matt <mattrutherford@users.noreply.github.com>
Co-authored-by: parity-processbot <>
* Adds integration test based on adder collator
This adds an integration test for parachains that uses the adder
collator. The test will start two relay chain nodes and one collator and
waits until 4 blocks are build and enacted by the parachain.
* Make sure the integration test is run in CI
* Fix wasm compilation
* Update parachain/test-parachains/adder/collator/src/lib.rs
Co-authored-by: Sergei Shulepov <sergei@parity.io>
* Update cli/src/command.rs
Co-authored-by: Sergei Shulepov <sergei@parity.io>
André Silva