add coverage

.github/workflows/ci.yml

@@ -140,12 +140,15 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install -r requirements.txt
+          pip install coverage
+          pip install coveralls
       - name: Enable Postgres Trigram Extension
         run: |
           PGPASSWORD=postgres psql -U postgres -h 127.0.0.1 -p ${{ job.services.postgres.ports[5432] }} -d ci_db_test -c "CREATE EXTENSION IF NOT EXISTS \"uuid-ossp\";"
       - name: Test with unittest
         env:
           TEST_DATABASE_URL: postgresql://postgres:postgres@localhost/ci_db_test
           TEST_DATABASE_ASYNC_URL: postgresql+asyncpg://postgres:postgres@localhost/ci_db_test
-        run: |
-          python -m unittest discover -s ./tests/test_implementations
+        run:  |
+          python -m coverage run -m unittest
+          coveralls