fix(tests): fix assertions on default beverage

This fixes an issue where integration tests that would otherwise
succeed, locally, fail close to the end because the user executing
the tests has set the DEIS_DRINK_OF_CHOICE environment variable,
which interferes with the assertion that the default beverage to
be enjoyed whilst scaling is coffee.  This corrects that problem
by unsetting the DEIS_DRINK_OF_CHOICE environment variable prior
to testing.

Author: krancour

tests/bin/test-setup.sh

@@ -85,6 +85,9 @@ ssh-add -D || eval $(ssh-agent) && ssh-add -D
 ssh-add ~/.ssh/$DEIS_TEST_AUTH_KEY
 ssh-add $DEIS_TEST_SSH_KEY
 
+# clear the drink of choice in case the user has set it
+unset DEIS_DRINK_OF_CHOICE
+
 # wipe out all vagrants & deis virtualboxen
 function cleanup {
     if [ "$SKIP_CLEANUP" != true ]; then