Use Composer prepare-tests script

Author: schlessera

.circleci/config.yml

@@ -21,9 +21,7 @@ jobs:
         echo -e "memory_limit = 1024M" | sudo tee /usr/local/etc/php/php.ini > /dev/null
     - run: |
         composer install
-        mysql -e 'CREATE DATABASE IF NOT EXISTS wp_cli_test;' -uroot -h 127.0.0.1
-        mysql -e 'GRANT ALL PRIVILEGES ON wp_cli_test.* TO "wp_cli_test"@"127.0.0.1" IDENTIFIED BY "password1"' -uroot -h 127.0.0.1
-        mysql -e 'GRANT ALL PRIVILEGES ON wp_cli_test_scaffold.* TO "wp_cli_test"@"127.0.0.1" IDENTIFIED BY "password1"' -uroot -h 127.0.0.1
+        composer prepare-tests
     - run: |
         echo 'export PATH=$HOME/wp-cli/package-tests/vendor/bin:$PATH' >> $BASH_ENV
         source $BASH_ENV