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Improve Penpal runtime + emulated tests (#3543)

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Issues addressed in this PR:
- Improve *Penpal* runtime:
- Properly handled received assets. Previously, it treated `(1, Here)`
as the local native currency, whereas it should be treated as a
`ForeignAsset`. This wasn't a great example of standard Parachain
behaviour, as no Parachain treats the system asset as the local
currency.
- Remove `AllowExplicitUnpaidExecutionFrom` the system. Again, this
wasn't a great example of standard Parachain behaviour.
- Move duplicated
`ForeignAssetFeeAsExistentialDepositMultiplierFeeCharger` to
`assets_common` crate.
- Improve emulated tests:
  - Update *Penpal* tests to new runtime.
- To simplify tests, register the reserve transferred, teleported, and
system assets in *Penpal* and *AssetHub* genesis. This saves us from
having to create the assets repeatedly for each test
- Add missing test case:
`reserve_transfer_assets_from_para_to_system_para`.
  - Cleanup.
- Prevent integration tests crates imports from being re-exported, as
they were polluting the `polkadot-sdk` docs.

There is still a test case missing for reserve transfers:
- Reserve transfer of system asset from *Parachain* to *Parachain*
trough *AssetHub*.
- This is not yet possible with `pallet-xcm` due to the reasons
explained in https://github.com/paritytech/polkadot-sdk/pull/3339

---------

Co-authored-by: command-bot <>
This commit is contained in:
Ignacio Palacios
2024-03-14 11:29:24 +01:00
committed by GitHub
parent 606664e1bd
commit cfc4050d6b
47 changed files with 2581 additions and 1200 deletions
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cumulus/parachains/integration-tests/emulated/tests/assets/asset-hub-rococo/Cargo.toml
+1
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@@ -34,5 +34,6 @@ parachains-common = { path = "../../../../../../parachains/common" }
cumulus-pallet-parachain-system = { path = "../../../../../../pallets/parachain-system", default-features = false }
testnet-parachains-constants = { path = "../../../../../runtimes/constants", features = ["rococo"] }
asset-hub-rococo-runtime = { path = "../../../../../runtimes/assets/asset-hub-rococo" }
penpal-runtime = { path = "../../../../../runtimes/testing/penpal" }
emulated-integration-tests-common = { path = "../../../common", default-features = false }
rococo-system-emulated-network = { path = "../../../networks/rococo-system" }