user = create(:user)
oauth_access_token = create(:oauth_access_token, :resource_owner_id => user.id)
assert_equal 1, user.access_tokens.not_expired.count
user = create(:user)
oauth_access_token = create(:oauth_access_token, :resource_owner_id => user.id)
assert_equal 1, user.access_tokens.not_expired.count