[conda] Improve testing phase clarity

conda/meta.yaml

@@ -62,7 +62,9 @@ test:
     - beat editor --help
     - beat editor serve --help
     - nosetests --with-coverage --cover-package={{ name }} -sv {{ name }}
-    - if [ -n "${BEAT_BROWSER_TESTS}" ]; then cd {{ environ.get('RECIPE_DIR') }}/js; npm install; CHROMIUM_BIN=chromium-browser npm test; cd -; fi
+    - export CHROMIUM_BIN=chromium-browser
+    - if [ -n "${BEAT_BROWSER_TESTS}" ]; then pushd {{ environ.get('RECIPE_DIR') }}/js; npm install; npm test; popd; fi
+    - unset CHROMIUM_BIN
     - sphinx-build -aEW ${PREFIX}/share/doc/{{ name }}/doc sphinx
     - if [ -n "${CI_PROJECT_DIR}" ]; then mv sphinx "${CI_PROJECT_DIR}/"; fi
     - sphinx-build -aEb doctest ${PREFIX}/share/doc/{{ name }}/doc sphinx