Run unit tests on windows

[webmaster128]

This is a follow-up of #1110 (merge that first, then rebase this PR). The main point here is that we are running wasmd unit-tests on Windows. This works more or less. But a lot of tests are failing.

A lot of failures look something like this:

testing.go:1097: TempDir RemoveAll cleanup: remove C:\Users\CIRCLE~1.PAC\AppData\Local\Temp\TestPinPong2683230876\001\data\snapshots\metadata.db\000001.log: The process cannot access the file because it is being used by another process.

I don't know how this happens. Maybe the app needs to be shut down before nodeHome := t.TempDir() is deleted or something like this.

Any help would be appreciated.

[alpe]

This looks familiar. The DB on the IBC tests may need to be closed. I will 👁️ at this when I get a chance

[alpe]

I pushed a quick shot to close the test DBs. 🤞
This was intended on a new branch but I misstyped the push. Sorry for this

[webmaster128]

This was intended on a new branch but I misstyped the push. Sorry for this

No worries. Happy to share this one to fix wasmd unit tests on Windows. We'll need to clean up here anyways after #1110 is in.

[webmaster128]

Thank you @alpe, that's very helpful. Don't worry about the remaining issues, especially the crashes. There is something fishy going on in wasmvm. I'm on it.

[sonarqubecloud]

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[alpe]

This PR is blocked on CosmWasm/wasmvm#389