[TESTING] Testing Holochain with the `--lib` flag is ineffective

[ThetaSinner]

[TESTING] Testing Holochain with the `--lib` flag is ineffective

[jost-s]

Got it, thanks. It's specifically with tarpaulin that it doesn't work and moving all integration tests the proper tests files would resolve that issue.

[ThetaSinner]

Note that the tarpaulin and test commands have filters but they are a bit limited. I can run all the tests in a module tree with test or a specific test with tarpaulin but I can't run arbitrary sets of tests. Using nextest is a bit better but it's still a fiddle selecting out the tests you want to exclude integration tests

[jost-s]

I don't understand what you're trying to do. Please give an example using cargo test of which unit tests you'd like to run, omitting integration tests.

[ThetaSinner]

To add a specific example, I am testing with this command RUST_BACKTRACE=1 RUST_LOG=info cargo test --lib core::workflow::sys_validation_workflow-- --nocapture which lets me run all the sys validation tests. I pass --lib to cargo test because it speeds up the test run so much to not have to recompile the integration test binaries every time you want change test code in Holochain. I can't do the same thing with tarpaulin though because although it supports the --lib flag it doesn't directly pass your filter to cargo test. Plus the --lib flag is less effective when it has to compile a bunch of integration tests anyway.

I'd be happy enough if I didn't have to filter at all and could use run the unit tests with --lib which is what that flag is supposed to do. But we've got a mixture of unit tests and functional/integration tests in the lib source code.

[ThetaSinner]

I should also say, this isn't high priority for me - but I think we should try to address it as part of the sweettest uplift when we get to that

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