Writing Unit Tests : Unit Testing « Unit Test « Ruby

1. Ruby
2. Unit Test
3. Unit Testing

Writing Unit Tests

require 'test/unit'

class Person
  attr_accessor :first_name, :last_name, :age

  def initialize(first_name, last_name, age)
    raise ArgumentError, "Invalid age: #{age}" unless age > 0
    @first_name, @last_name, @age = first_name, last_name, age
  end

  def full_name
    first_name + ' ' + last_name
  end
end


class PersonTest < Test::Unit::TestCase
  def test_first_name
    person = Person.new('J', 'Y', 25)
    assert_equal 'J', person.first_name
  end

  def test_last_name
    person = Person.new('J', 'Y', 25)
    assert_equal 'Y', person.last_name
  end

  def test_full_name
    person = Person.new('J', 'Y', 25)
    assert_equal 'J Y', person.full_name
  end

  def test_age
    person = Person.new('J', 'Y', 25)
    assert_equal 25, person.age
    assert_raise(ArgumentError) { Person.new('J', 'Y', -4) }
    assert_raise(ArgumentError) { Person.new('J', 'Y', 'four') }
  end
end



# $ ruby test/person_test.rb

 

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