run tests using the installed version

Author: ocefpaf

.travis.yml

@@ -62,7 +62,8 @@ install:
 
 script:
   - if [[ $TEST_TARGET == 'default' ]]; then
-      py.test -vv ;
+      cp -r tests /tmp && cd /tmp ;
+      py.test -vv tests ;
     fi
 
   - if [[ $TEST_TARGET == 'coding_standards' ]]; then