Fix: Travis-CI configuration

.travis.yml

@@ -16,6 +16,12 @@ env:
   - DB=sqlite
   - DB=mysqli
 
+before_install:
+  - composer self-update
+
+install:
+  - composer update --prefer-source
+
 before_script:
   - sh -c "if [ '$DB' = 'pgsql' ]; then psql -c 'DROP DATABASE IF EXISTS doctrine_tests;' -U postgres; fi"
   - sh -c "if [ '$DB' = 'pgsql' ]; then psql -c 'DROP DATABASE IF EXISTS doctrine_tests_tmp;' -U postgres; fi"
@@ -24,8 +30,6 @@ before_script:
   - sh -c "if [ '$DB' = 'pgsql' ]; then sudo service postgresql stop; sudo service postgresql start $POSTGRESQL_VERSION; fi"
   - sh -c "if [ '$DB' = 'mysql' ]; then mysql -e 'create database IF NOT EXISTS doctrine_tests_tmp;create database IF NOT EXISTS doctrine_tests;'; fi"
   - sh -c "if [ '$DB' = 'mysqli' ]; then mysql -e 'create database IF NOT EXISTS doctrine_tests_tmp;create database IF NOT EXISTS doctrine_tests;'; fi"
-  - composer self-update
-  - composer update --prefer-source
 
 script: phpunit --configuration tests/travis/$DB.travis.xml