test: pop up parachain

[AlexD10S]

• Unit tests for pop up parachain.
  A couple of tests are under unit_parachain feature because takes a lot of time (Ideally slow process should be mocked for unit tests). To run the ignored tests: cargo test --features unit_parachain
  To run all the tests: cargo test --all-features.

- Integration test.
To have an integration test of this functionality is a bit tricky, as the command doesn't stop after the execution.
I took as a reference a test in cumulus that let the command run for a X amount of seconds and then stop it. (Example here).

[evilrobot-01]

Something like https://stackoverflow.com/questions/67859926/how-to-run-cargo-fmt-on-save-in-vscode should save the need for formatting commits in future.

[evilrobot-01]

Great work and thank you!! Biggest distraction for me was the contract-related formatting changes which should not have been included in this PR. I understand why, but it should be out of scope of the changes included.

Apart from that, made some suggestions and comments. Also I ran a code coverage tool and there was only 70% test coverage on zombienet.rs, admittedly without the ignored tests which are now still re-running, so need to add more tests which we can also do in a follow up as we look to further improve test coverage across the codebase.

[brunopgalvao]

Looks like the CI is failing.

[AlexD10S]

Looks like the CI is failing.

Removed the test that was failing. It was failing because is expecting user confirmation to download the binaries. Locally works because this binaries exist in cache.

The removed tests was more than 1h, because was trying all the process: create, build and run parachain (And relay chain).

Recover the test when we start our e2e battery of tests: 50669f4