Add Integration Tests

[apopiak]

We will want to add tests to ensure that Statemint/e work as expected.
Example tests:

• asset creation and minting
• transfers
• XCM transfers

Ideas

• use XCM Emulator for testing XCM integration
• polkadot-js based interaction with the chain
• manual testing of e.g. Rockmine

[NachoPal]

I'll start with "polkadot-js based interaction with the chain"

[apopiak]

Integration Tests

Basic skeleton for integration tests (not comprehensive).

Statemint Extrinsics

Test that functionality local to the chain works.

Note: We can probably collapse steps into batch_all calls to reduce test times)

Fungible Assets

Test that basic asset operations work.

• Assets::create
• Assets::set_metadata
• Assets::mint
• Assets::transfer

Asset Tx Payment

Test that we can pay transactions in assets.

• Assets::force_create with is_sufficient = true
• Assets::mint
• Assets::transfer, using the newly created asset for tx payment

Non-Fungible Assets

Test that we can do basic operations on non-fungible tokens.

• Uniques::create
• Uniques::mint
• Uniques::transfer

XCM Tests

Teleport

Test that teleports between Statemint and relay chain work.

Statemint to Relay

• PolkadotXcm::limited_teleport_assets on Statemint

Relay to Statemint

• PalletXcm::limited_teleport_assets on the relay

[NachoPal]

I created a new repository for the tests: https://github.com/NachoPal/parachains-integration-tests

How I see the tests should be run
Create a CI job that can be triggered manually with three inputs:

• Parachain release binary polkadot-collator
• Relaychain release binary polkadot
• URL to parachains-integration-tests release branch to use to run the tests

The job will do the following:

1. Clone the release branch from the URL
2. Copy polkadot and polkadot-collator to the ./bin folder of the repo
3. yarn
4. yarn polkadot-launch:test

[apopiak]

Integration Tests for Statemint Release

• permissionless asset creation turned off
• test force_create instead via council (or sudo, or governance)
  • tested council being allowed to force_create ✔️
• transact on Statemint from relay chain governance

[apopiak]

Tested teleport Statemint -> Polkadot and ran into paritytech/polkadot-sdk#899