Fixed ruby test for good (hopefully)

test/plugins/ruby.plugin.bats

@@ -5,6 +5,32 @@ load ../../lib/helpers
 load ../../lib/composure
 load ../../plugins/available/ruby.plugin
 
+function local_setup {
+  mkdir -p "$BASH_IT"
+  lib_directory="$(cd "$(dirname "$0")" && pwd)"
+  # Use rsync to copy Bash-it to the temp folder
+  # rsync is faster than cp, since we can exclude the large ".git" folder
+  rsync -qavrKL -d --delete-excluded --exclude=.git $lib_directory/../.. "$BASH_IT"
+
+  rm -rf "$BASH_IT"/enabled
+  rm -rf "$BASH_IT"/aliases/enabled
+  rm -rf "$BASH_IT"/completion/enabled
+  rm -rf "$BASH_IT"/plugins/enabled
+
+  mkdir -p "$BASH_IT"/enabled
+  mkdir -p "$BASH_IT"/aliases/enabled
+  mkdir -p "$BASH_IT"/completion/enabled
+  mkdir -p "$BASH_IT"/plugins/enabled
+
+  export OLD_PATH="$PATH"
+  export PATH="/usr/bin:/bin:/usr/sbin"
+}
+
+function local_teardown {
+  export PATH="$OLD_PATH"
+  unset OLD_PATH
+}
+
 @test "plugins ruby: remove_gem is defined" {
   run type remove_gem
   assert_line 1 "remove_gem () "
@@ -15,6 +41,8 @@ load ../../plugins/available/ruby.plugin
     skip 'ruby not installed'
   fi
 
+  load ../../plugins/available/ruby.plugin
+
   local last_path_entry=$(echo $PATH | tr ":" "\n" | tail -1)
   [[ "${last_path_entry}" == "${HOME}"/.gem/ruby/*/bin ]]
 }