More and better tests

[thunderbiscuit]

I'll keep this one open until some of my bdk-ffi PRs are in and I'll add tests for them here.

The first commit on this PR streamlines our use of extended keys public and private. I introduced two mnemonics:

const val MNEMONIC_AWESOME = "awesome awesome awesome awesome awesome awesome awesome awesome awesome awesome awesome awesome"
const val MNEMONIC_ALL = "all all all all all all all all all all all all"

Which are then used to produce the keys, descriptors, ect.

Todo

• Add tests for Expose Wallet::create_single method bdk-ffi#825
• Add tests for Expose Wallet::create_from_two_path_descriptor constructor bdk-ffi#847

[ItoroD]

Your additional tests for the multipath work well with master (bdk-ffi)!

I have noted you have more things you will like to add here 👍. Looking good so far.

[ItoroD]

Just a nit.

For completeness sake, will we want to add the other test networks

[thunderbiscuit]

Done!

[thunderbiscuit]

@ItoroD this is ready for final review. I have updated the submodule to the latest commit on master for bdk-ffi so that the tests for the 2 new APIs can work.

Note that I did not fix the Kyoto example in this PR, so the CI fails but only on that.

[ItoroD]

ACK 147539d

[ItoroD]

Note that I did not fix the Kyoto example in this PR, so the CI fails but only on that.

PR #22 fixes the kyoto sample error. I also updated submodule to latest from master just like you have here commit: 53d4986. You can choose to merge that and rebase this PR. Or vice versa. Fine with either really.

[thunderbiscuit]

Yeah I think merging yours first makes more sense. I'll rebase this after. Thanks for the review!