update CI configuration

GregorDeCillia · GregorDeCillia · commit 4f6f97e857fd · 2019-01-17T00:09:22.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -15,6 +15,7 @@ r:
 - devel
 
 after_success:
+  - R CMD INSTALL $PKG_TARBALL
   - Rscript -e 'covr::codecov()'
   - Rscript -e 'lintr::lint_package()'
 
