Run tests using Testcontainers

This commit simplifies the process of running GrimoireLab
core tests by using Testcontainers. With Testcontainers,
we can now easily set up containerized services, creating
a consistent testing environment and reducing setup
complexity.

Signed-off-by: Jose Javier Merchante <jjmerchante@bitergia.com>

.github/workflows/release.yml

@@ -20,15 +20,6 @@ jobs:
   tests:
     needs: [build]
     runs-on: ubuntu-latest
-    services:
-      mysql:
-        image: mariadb:10.5
-        env:
-          MYSQL_ROOT_PASSWORD: root
-        ports:
-          - 3306:3306
-        options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=3
-
     name: Python ${{ matrix.python-version }}
     strategy:
       matrix:
@@ -57,13 +48,6 @@ jobs:
         run: |
           poetry install --only dev --no-root
 
-      - name: Set MySQL mode
-        env:
-          DB_HOST: 127.0.0.1
-          DB_PORT: ${{ job.services.mysql.ports[3306] }}
-        run: |
-          mysql --host $DB_HOST --port $DB_PORT -uroot -proot -e "SET GLOBAL sql_mode = 'NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION'";
-
       - name: Test package backend
         run: |
           PACKAGE=`(cd dist && ls *whl)` && echo $PACKAGE

.github/workflows/tests.yml

@@ -13,16 +13,6 @@ on:
 jobs:
 
   backend:
-
-    services:
-      mysql:
-        image: mariadb:10.5
-        env:
-          MYSQL_ROOT_PASSWORD: root
-        ports:
-          - 3306:3306
-        options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=3
-
     strategy:
       matrix:
         python-version: [3.11, 3.12]
@@ -44,12 +34,6 @@ jobs:
       run: |
         poetry install -vvv
         poetry run pip install -r requirements_dev.txt
-    - name: Set MySQL mode
-      env:
-        DB_HOST: 127.0.0.1
-        DB_PORT: ${{ job.services.mysql.ports[3306] }}
-      run: |
-        mysql --host $DB_HOST --port $DB_PORT -uroot -proot -e "SET GLOBAL sql_mode = 'NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION'";
     - name: Lint with flake8
       run: |
         poetry run flake8

config/settings/testing.py

@@ -48,6 +48,10 @@
     }
 }
 
+TEST_DATABASE_IMAGE = "mariadb:11.4"
+
+TEST_RUNNER = 'tests.runners.TestContainersRunner'
+
 
 # Configuration to pretend there is a Redis service
 # available. We need to set up the connection before