Fix integration test setup in CI

Author: Tsvetan Stoychev

.github/workflows/ci.yml

@@ -48,6 +48,19 @@ jobs:
     name: Integration (PHP ${{ matrix.php }}, WP ${{ matrix.wp }})
     runs-on: ubuntu-latest
     needs: unit
+    services:
+      mysql:
+        image: mysql:8.0
+        env:
+          MYSQL_ROOT_PASSWORD: root
+          MYSQL_ROOT_HOST: '%'
+        ports:
+          - 3306:3306
+        options: >-
+          --health-cmd="mysqladmin ping -h localhost -proot"
+          --health-interval=10s
+          --health-timeout=5s
+          --health-retries=5
     strategy:
       fail-fast: false
       matrix:
@@ -72,24 +85,12 @@ jobs:
         working-directory: plugins/basicrum
         run: composer install --no-interaction --prefer-dist
 
-      - name: Install WP test library (best effort)
-        continue-on-error: true
+      - name: Install WordPress test library
         run: |
           set -e
           sudo apt-get update
-          sudo apt-get install -y subversion
-
-          WP_TESTS_DIR=/tmp/wordpress-tests-lib
-          WP_CORE_DIR=/tmp/wordpress
-          TESTS_SVN_BASE="https://develop.svn.wordpress.org/${{ matrix.wp }}/tests/phpunit"
-          CORE_SVN_BASE="https://develop.svn.wordpress.org/${{ matrix.wp }}/src"
-
-          mkdir -p "$WP_TESTS_DIR" "$WP_CORE_DIR"
-
-          svn export --force --quiet "$TESTS_SVN_BASE/includes" "$WP_TESTS_DIR/includes" || true
-          svn export --force --quiet "$TESTS_SVN_BASE/data" "$WP_TESTS_DIR/data" || true
-          svn export --force --quiet "$CORE_SVN_BASE/wp-includes" "$WP_CORE_DIR/wp-includes" || true
-          svn export --force --quiet "$CORE_SVN_BASE/wp-admin" "$WP_CORE_DIR/wp-admin" || true
+          sudo apt-get install -y default-mysql-client subversion
+          bash tools/install-wp-tests.sh wordpress_test root root 127.0.0.1:3306 ${{ matrix.wp }}
 
       - name: Integration tests
         working-directory: plugins/basicrum