Add tests for activate and deactivate

bin/pyenv-sh-activate

@@ -20,6 +20,11 @@ if [ "$1" = "--complete" ]; then
   exec pyenv-virtualenvs --bare
 fi
 
+if [ "$1" = "--unset" ]; then
+  echo "pyenv deactivate"
+  exit
+fi
+
 versions=("$@")
 shell="$(basename "${PYENV_SHELL:-$SHELL}")"
 
@@ -29,11 +34,6 @@ if [ -z "$versions" ]; then
   IFS="$OLDIFS"
 fi
 
-if [ "$1" = "--unset" ]; then
-  echo "pyenv deactivate"
-  exit
-fi
-
 if [ "${#versions[@]}" -gt 1 ]; then
   echo "pyenv-virtualenv: cannot activate multiple versions at once: ${versions[@]}" 1>&2
   exit 1