Intellij-rust: Start single test in debugger runs all test in module

[marty30]

I have tried to find if this issue already was reported but could not find it. If it was already a known issue, just let me know.

When I run a single test in CLion with the regular executor it will run a single test and all other tests in the module are marked as filtered out:
test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 9 filtered out

But if I run this same test in debugmode, it will run all tests in the module:
test result: FAILED. 8 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out.
I expected it to behave the same as the regular run.

Side-note: It even appears to run everything in parallel.

[dforsten]

I see the same behavior, makes debugging modules with more than one test almost impossible to debug!

[d10r]

The reason for this seems to be wrong placement of the double dash which separates the commands.

This is an example command as created by the plugin:
test --package ethcore --lib engines::tendermint::tests::seal_submission -- --exact

And this is what it should look like:
test --package ethcore --lib -- engines::tendermint::tests::seal_submission --exact

[nblumhardt]

Quick workaround if you need one -

1. While debugging a single test, in the "configurations" drop-down choose "Save configuration" - this will create a persistent configuration for running just that single test.
2. Then, in the "Edit configurations" dialog, modify the "Command" field to put the -- in the correct position as shown by @d10r above

You can then debug into this configuration, and you'll get only one test running.