refactor: fix to run tests only for our create in CI

Author: JuroOravec

.github/workflows/tests.yml

@@ -35,15 +35,17 @@ jobs:
       - name: Run Rust tests
         shell: bash
         run: |
-          # Get all workspace packages and filter out those starting with 'ruff'
-          packages=$(cargo metadata --format-version 1 --no-deps | \
-            jq -r '.workspace_members[]' | \
-            sed 's/.*\///' | \
-            grep -v '^ruff' | \
-            xargs)
           # Build cargo test command with -p flags for each package
-          # Format as `cargo test -p <package> -p <package> ...`
+          # We do so because the ruff submodule also contains crates and those will
+          # run if we don't limit the tests to only our packages.
+          # And `cargo test` command doesn't allow to exclude crates based on patterns.
+          #
+          # 1. Get all directories in our `crates/` folder
+          packages=$(find crates -maxdepth 1 -mindepth 1 -type d | \
+            sed 's/crates\///' | \
+            tr '\n' ' ')
           echo "Running tests for packages: $packages"
+          # 2. Format as `cargo test -p <package> -p <package> ...`
           cargo test $(echo "$packages" | sed 's/\([^ ]*\)/-p \1/g')
 
       # After Rust tests pass, run Python tests next