The Ugly Mirror
Definition:
When you occasionally find yourself staring at a spec that looks exactly like the code under test, there’s surprisingly little win left to enjoy.
Also Known As:
Tautological tests
Code Example:
require "test/unit"
User = Struct.new(:first_name, :last_name, :email) do
def to_s
"#{last_name}, #{first_name} <#{email}>"
end
end
class UserTest < Test::Unit::TestCase
def test_to_s_includes_name_and_email
user = User.new("John", "Smith", "jsmith@example.com")
assert_equal "#{user.last_name}, #{user.first_name} <#{user.email}>", user.to_s
end
end
References:
Quality attributes
- Code Example
- Cause and Effect
- Frequency
- Refactoring