Move composer install

.travis.yml

@@ -19,6 +19,5 @@ before_script:
   - bash unit-tests/bin/install.sh woocommerce_test root '' localhost $WP_VERSION
 
 script:
-  - composer install
   - bash unit-tests/bin/phpunit.sh
   - bash unit-tests/bin/phpcs.sh

unit-tests/bin/phpunit.sh

@@ -1,6 +1,7 @@
 #!/usr/bin/env bash
 WORKING_DIR="$PWD"
 cd "$WP_CORE_DIR/wp-content/plugins/woocommerce-rest-api"
+composer install
 ./vendor/bin/phpunit --version
 ./vendor/bin/phpunit -c phpunit.xml
 TEST_RESULT=$?