mirror of
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Reorganized ActiveRecord macros and assertions
This commit is contained in:
Ryan McGeary
parent
526b123176
commit
84ea9466f7
9 changed files with 788 additions and 771 deletions
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@ -43,7 +43,7 @@ Produces the following test methods:
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So readable!
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=== ActiveRecord Tests (ThoughtBot::Shoulda::ActiveRecord)
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=== ActiveRecord Tests (ThoughtBot::Shoulda::ActiveRecord::Macros)
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Quick macro tests for your ActiveRecord associations and validations:
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@ -6,14 +6,14 @@ module Test # :nodoc: all
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module Unit
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class TestCase
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extend Thoughtbot::Shoulda
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include Thoughtbot::Shoulda::Assertions
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include ThoughtBot::Shoulda::Assertions
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end
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end
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end
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require 'shoulda/private_helpers'
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require 'shoulda/general'
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require 'shoulda/active_record_helpers'
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require 'shoulda/active_record'
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require 'shoulda/controller_tests/controller_tests.rb'
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require 'yaml'
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@ -37,11 +37,8 @@ require 'shoulda/color' if shoulda_options[:color]
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module Test # :nodoc: all
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module Unit
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class TestCase
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include ThoughtBot::Shoulda::General
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include ThoughtBot::Shoulda::Controller
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extend ThoughtBot::Shoulda::ActiveRecord
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end
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end
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end
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11
lib/shoulda/active_record.rb
Normal file
11
lib/shoulda/active_record.rb
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@ -0,0 +1,11 @@
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require 'shoulda/active_record/assertions'
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require 'shoulda/active_record/macros'
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module Test # :nodoc: all
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module Unit
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class TestCase
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include ThoughtBot::Shoulda::ActiveRecord::Assertions
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extend ThoughtBot::Shoulda::ActiveRecord::Macros
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end
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end
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end
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84
lib/shoulda/active_record/assertions.rb
Normal file
84
lib/shoulda/active_record/assertions.rb
Normal file
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@ -0,0 +1,84 @@
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module ThoughtBot # :nodoc:
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module Shoulda # :nodoc:
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module ActiveRecord # :nodoc:
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module Assertions
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# Asserts that the given object can be saved
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#
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# assert_save User.new(params)
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def assert_save(obj)
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assert obj.save, "Errors: #{pretty_error_messages obj}"
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obj.reload
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end
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# Asserts that the given object is valid
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#
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# assert_valid User.new(params)
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def assert_valid(obj)
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assert obj.valid?, "Errors: #{pretty_error_messages obj}"
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end
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# Asserts that an Active Record model validates with the passed
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# <tt>value</tt> by making sure the <tt>error_message_to_avoid</tt> is not
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# contained within the list of errors for that attribute.
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#
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# assert_good_value(User.new, :email, "user@example.com")
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# assert_good_value(User.new, :ssn, "123456789", /length/)
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#
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# If a class is passed as the first argument, a new object will be
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# instantiated before the assertion. If an instance variable exists with
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# the same name as the class (underscored), that object will be used
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# instead.
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#
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# assert_good_value(User, :email, "user@example.com")
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#
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# @product = Product.new(:tangible => false)
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# assert_good_value(Product, :price, "0")
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def assert_good_value(object_or_klass, attribute, value, error_message_to_avoid = //)
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object = get_instance_of(object_or_klass)
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object.send("#{attribute}=", value)
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object.valid?
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assert_does_not_contain(object.errors.on(attribute), error_message_to_avoid, "when set to #{value.inspect}")
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end
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# Asserts that an Active Record model invalidates the passed
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# <tt>value</tt> by making sure the <tt>error_message_to_expect</tt> is
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# contained within the list of errors for that attribute.
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#
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# assert_bad_value(User.new, :email, "invalid")
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# assert_bad_value(User.new, :ssn, "123", /length/)
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#
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# If a class is passed as the first argument, a new object will be
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# instantiated before the assertion. If an instance variable exists with
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# the same name as the class (underscored), that object will be used
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# instead.
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#
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# assert_bad_value(User, :email, "invalid")
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#
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# @product = Product.new(:tangible => true)
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# assert_bad_value(Product, :price, "0")
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def assert_bad_value(object_or_klass, attribute, value, error_message_to_expect = /invalid/)
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object = get_instance_of(object_or_klass)
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object.send("#{attribute}=", value)
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assert !object.valid?, "#{object.class} allowed #{value.inspect} as a value for #{attribute}"
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assert object.errors.on(attribute), "There are no errors on #{attribute} after being set to #{value.inspect}"
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assert_contains(object.errors.on(attribute), error_message_to_expect, "when set to #{value.inspect}")
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end
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def pretty_error_messages(obj)
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obj.errors.map { |a, m| "#{a} #{m} (#{obj.send(a).inspect})" }
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end
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private
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def get_instance_of(object_or_klass)
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if object_or_klass.is_a?(Class)
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klass = object_or_klass
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instance_variable_get("@#{klass.to_s.underscore}") || klass.new
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else
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object_or_klass
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end
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end
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end
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end
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end
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end
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688
lib/shoulda/active_record/macros.rb
Normal file
688
lib/shoulda/active_record/macros.rb
Normal file
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@ -0,0 +1,688 @@
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module ThoughtBot # :nodoc:
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module Shoulda # :nodoc:
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module ActiveRecord # :nodoc:
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# = Macro test helpers for your active record models
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#
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# These helpers will test most of the validations and associations for your ActiveRecord models.
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#
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# class UserTest < Test::Unit::TestCase
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# should_require_attributes :name, :phone_number
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# should_not_allow_values_for :phone_number, "abcd", "1234"
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# should_allow_values_for :phone_number, "(123) 456-7890"
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#
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# should_protect_attributes :password
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#
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# should_have_one :profile
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# should_have_many :dogs
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# should_have_many :messes, :through => :dogs
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# should_belong_to :lover
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# end
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#
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# For all of these helpers, the last parameter may be a hash of options.
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#
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module Macros
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# Loads all fixture files (<tt>test/fixtures/*.yml</tt>)
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def load_all_fixtures
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all_fixtures = Dir.glob(File.join(Test::Unit::TestCase.fixture_path, "*.yml")).collect do |f|
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File.basename(f, '.yml').to_sym
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end
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fixtures *all_fixtures
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end
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# Ensures that the model cannot be saved if one of the attributes listed is not present.
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#
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# If an instance variable has been created in the setup named after the
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# model being tested, then this method will use that. Otherwise, it will
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# create a new instance to test against.
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#
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# Options:
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# * <tt>:message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
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# Regexp or string. Default = <tt>/blank/</tt>
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#
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# Example:
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# should_require_attributes :name, :phone_number
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#
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def should_require_attributes(*attributes)
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message = get_options!(attributes, :message)
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message ||= /blank/
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klass = model_class
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attributes.each do |attribute|
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should "require #{attribute} to be set" do
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assert_bad_value(klass, attribute, nil, message)
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end
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end
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end
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# Ensures that the model cannot be saved if one of the attributes listed is not unique.
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# Requires an existing record
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#
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# Options:
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# * <tt>:message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
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# Regexp or string. Default = <tt>/taken/</tt>
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# * <tt>:scoped_to</tt> - field(s) to scope the uniqueness to.
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#
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# Examples:
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# should_require_unique_attributes :keyword, :username
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# should_require_unique_attributes :name, :message => "O NOES! SOMEONE STOELED YER NAME!"
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# should_require_unique_attributes :email, :scoped_to => :name
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# should_require_unique_attributes :address, :scoped_to => [:first_name, :last_name]
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#
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def should_require_unique_attributes(*attributes)
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message, scope = get_options!(attributes, :message, :scoped_to)
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scope = [*scope].compact
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message ||= /taken/
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klass = model_class
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attributes.each do |attribute|
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attribute = attribute.to_sym
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should "require unique value for #{attribute}#{" scoped to #{scope.join(', ')}" unless scope.blank?}" do
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assert existing = klass.find(:first), "Can't find first #{klass}"
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object = klass.new
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existing_value = existing.send(attribute)
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if !scope.blank?
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scope.each do |s|
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assert_respond_to object, :"#{s}=", "#{klass.name} doesn't seem to have a #{s} attribute."
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object.send("#{s}=", existing.send(s))
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end
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end
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assert_bad_value(object, attribute, existing_value, message)
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# Now test that the object is valid when changing the scoped attribute
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# TODO: There is a chance that we could change the scoped field
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# to a value that's already taken. An alternative implementation
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# could actually find all values for scope and create a unique
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# one.
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if !scope.blank?
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scope.each do |s|
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# Assume the scope is a foreign key if the field is nil
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object.send("#{s}=", existing.send(s).nil? ? 1 : existing.send(s).next)
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assert_good_value(object, attribute, existing_value, message)
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end
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end
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end
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end
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end
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# Ensures that the attribute cannot be set on mass update.
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#
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# should_protect_attributes :password, :admin_flag
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#
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def should_protect_attributes(*attributes)
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get_options!(attributes)
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klass = model_class
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attributes.each do |attribute|
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attribute = attribute.to_sym
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should "protect #{attribute} from mass updates" do
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protected = klass.protected_attributes || []
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accessible = klass.accessible_attributes || []
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assert protected.include?(attribute.to_s) || !accessible.include?(attribute.to_s),
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(accessible.empty? ?
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"#{klass} is protecting #{protected.to_a.to_sentence}, but not #{attribute}." :
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"#{klass} has made #{attribute} accessible")
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end
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end
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end
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# Ensures that the attribute cannot be changed once the record has been created.
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#
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# should_have_readonly_attributes :password, :admin_flag
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#
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def should_have_readonly_attributes(*attributes)
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get_options!(attributes)
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klass = model_class
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attributes.each do |attribute|
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attribute = attribute.to_sym
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should "make #{attribute} read-only" do
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readonly = klass.readonly_attributes || []
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assert readonly.include?(attribute.to_s),
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(readonly.empty? ?
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"#{klass} attribute #{attribute} is not read-only" :
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"#{klass} is making #{readonly.to_a.to_sentence} read-only, but not #{attribute}.")
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end
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end
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end
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# Ensures that the attribute cannot be set to the given values
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#
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# If an instance variable has been created in the setup named after the
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# model being tested, then this method will use that. Otherwise, it will
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# create a new instance to test against.
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#
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# Options:
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# * <tt>:message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
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# Regexp or string. Default = <tt>/invalid/</tt>
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#
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# Example:
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# should_not_allow_values_for :isbn, "bad 1", "bad 2"
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#
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def should_not_allow_values_for(attribute, *bad_values)
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message = get_options!(bad_values, :message)
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message ||= /invalid/
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klass = model_class
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bad_values.each do |v|
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should "not allow #{attribute} to be set to #{v.inspect}" do
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assert_bad_value(klass, attribute, v, message)
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end
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end
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end
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# Ensures that the attribute can be set to the given values.
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#
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# If an instance variable has been created in the setup named after the
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# model being tested, then this method will use that. Otherwise, it will
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# create a new instance to test against.
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#
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# Example:
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# should_allow_values_for :isbn, "isbn 1 2345 6789 0", "ISBN 1-2345-6789-0"
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#
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def should_allow_values_for(attribute, *good_values)
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get_options!(good_values)
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klass = model_class
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good_values.each do |v|
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should "allow #{attribute} to be set to #{v.inspect}" do
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assert_good_value(klass, attribute, v)
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end
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end
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end
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# Ensures that the length of the attribute is in the given range
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#
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# If an instance variable has been created in the setup named after the
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# model being tested, then this method will use that. Otherwise, it will
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# create a new instance to test against.
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#
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# Options:
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# * <tt>:short_message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
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# Regexp or string. Default = <tt>/short/</tt>
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# * <tt>:long_message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
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# Regexp or string. Default = <tt>/long/</tt>
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#
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# Example:
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# should_ensure_length_in_range :password, (6..20)
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#
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def should_ensure_length_in_range(attribute, range, opts = {})
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short_message, long_message = get_options!([opts], :short_message, :long_message)
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short_message ||= /short/
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long_message ||= /long/
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klass = model_class
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min_length = range.first
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max_length = range.last
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same_length = (min_length == max_length)
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if min_length > 0
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should "not allow #{attribute} to be less than #{min_length} chars long" do
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min_value = "x" * (min_length - 1)
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assert_bad_value(klass, attribute, min_value, short_message)
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end
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end
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if min_length > 0
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should "allow #{attribute} to be exactly #{min_length} chars long" do
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min_value = "x" * min_length
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assert_good_value(klass, attribute, min_value, short_message)
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end
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end
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should "not allow #{attribute} to be more than #{max_length} chars long" do
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max_value = "x" * (max_length + 1)
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assert_bad_value(klass, attribute, max_value, long_message)
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end
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unless same_length
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should "allow #{attribute} to be exactly #{max_length} chars long" do
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max_value = "x" * max_length
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assert_good_value(klass, attribute, max_value, long_message)
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end
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end
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end
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# Ensures that the length of the attribute is at least a certain length
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#
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# If an instance variable has been created in the setup named after the
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# model being tested, then this method will use that. Otherwise, it will
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# create a new instance to test against.
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#
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# Options:
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# * <tt>:short_message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
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# Regexp or string. Default = <tt>/short/</tt>
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#
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# Example:
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# should_ensure_length_at_least :name, 3
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#
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def should_ensure_length_at_least(attribute, min_length, opts = {})
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short_message = get_options!([opts], :short_message)
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short_message ||= /short/
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klass = model_class
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if min_length > 0
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min_value = "x" * (min_length - 1)
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should "not allow #{attribute} to be less than #{min_length} chars long" do
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assert_bad_value(klass, attribute, min_value, short_message)
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end
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end
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should "allow #{attribute} to be at least #{min_length} chars long" do
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valid_value = "x" * (min_length)
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assert_good_value(klass, attribute, valid_value, short_message)
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end
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end
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# Ensures that the length of the attribute is exactly a certain length
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#
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# If an instance variable has been created in the setup named after the
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# model being tested, then this method will use that. Otherwise, it will
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# create a new instance to test against.
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#
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# Options:
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# * <tt>:message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
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# Regexp or string. Default = <tt>/short/</tt>
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#
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# Example:
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# should_ensure_length_is :ssn, 9
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#
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def should_ensure_length_is(attribute, length, opts = {})
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message = get_options!([opts], :message)
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message ||= /wrong length/
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klass = model_class
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should "not allow #{attribute} to be less than #{length} chars long" do
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min_value = "x" * (length - 1)
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assert_bad_value(klass, attribute, min_value, message)
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end
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should "not allow #{attribute} to be greater than #{length} chars long" do
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max_value = "x" * (length + 1)
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assert_bad_value(klass, attribute, max_value, message)
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end
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should "allow #{attribute} to be #{length} chars long" do
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valid_value = "x" * (length)
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assert_good_value(klass, attribute, valid_value, message)
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end
|
||||
end
|
||||
|
||||
# Ensure that the attribute is in the range specified
|
||||
#
|
||||
# If an instance variable has been created in the setup named after the
|
||||
# model being tested, then this method will use that. Otherwise, it will
|
||||
# create a new instance to test against.
|
||||
#
|
||||
# Options:
|
||||
# * <tt>:low_message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
|
||||
# Regexp or string. Default = <tt>/included/</tt>
|
||||
# * <tt>:high_message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
|
||||
# Regexp or string. Default = <tt>/included/</tt>
|
||||
#
|
||||
# Example:
|
||||
# should_ensure_value_in_range :age, (0..100)
|
||||
#
|
||||
def should_ensure_value_in_range(attribute, range, opts = {})
|
||||
low_message, high_message = get_options!([opts], :low_message, :high_message)
|
||||
low_message ||= /included/
|
||||
high_message ||= /included/
|
||||
|
||||
klass = model_class
|
||||
min = range.first
|
||||
max = range.last
|
||||
|
||||
should "not allow #{attribute} to be less than #{min}" do
|
||||
v = min - 1
|
||||
assert_bad_value(klass, attribute, v, low_message)
|
||||
end
|
||||
|
||||
should "allow #{attribute} to be #{min}" do
|
||||
v = min
|
||||
assert_good_value(klass, attribute, v, low_message)
|
||||
end
|
||||
|
||||
should "not allow #{attribute} to be more than #{max}" do
|
||||
v = max + 1
|
||||
assert_bad_value(klass, attribute, v, high_message)
|
||||
end
|
||||
|
||||
should "allow #{attribute} to be #{max}" do
|
||||
v = max
|
||||
assert_good_value(klass, attribute, v, high_message)
|
||||
end
|
||||
end
|
||||
|
||||
# Ensure that the attribute is numeric
|
||||
#
|
||||
# If an instance variable has been created in the setup named after the
|
||||
# model being tested, then this method will use that. Otherwise, it will
|
||||
# create a new instance to test against.
|
||||
#
|
||||
# Options:
|
||||
# * <tt>:message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
|
||||
# Regexp or string. Default = <tt>/number/</tt>
|
||||
#
|
||||
# Example:
|
||||
# should_only_allow_numeric_values_for :age
|
||||
#
|
||||
def should_only_allow_numeric_values_for(*attributes)
|
||||
message = get_options!(attributes, :message)
|
||||
message ||= /number/
|
||||
klass = model_class
|
||||
attributes.each do |attribute|
|
||||
attribute = attribute.to_sym
|
||||
should "only allow numeric values for #{attribute}" do
|
||||
assert_bad_value(klass, attribute, "abcd", message)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensures that the has_many relationship exists. Will also test that the
|
||||
# associated table has the required columns. Works with polymorphic
|
||||
# associations.
|
||||
#
|
||||
# Options:
|
||||
# * <tt>:through</tt> - association name for <tt>has_many :through</tt>
|
||||
# * <tt>:dependent</tt> - tests that the association makes use of the dependent option.
|
||||
#
|
||||
# Example:
|
||||
# should_have_many :friends
|
||||
# should_have_many :enemies, :through => :friends
|
||||
# should_have_many :enemies, :dependent => :destroy
|
||||
#
|
||||
def should_have_many(*associations)
|
||||
through, dependent = get_options!(associations, :through, :dependent)
|
||||
klass = model_class
|
||||
associations.each do |association|
|
||||
name = "have many #{association}"
|
||||
name += " through #{through}" if through
|
||||
name += " dependent => #{dependent}" if dependent
|
||||
should name do
|
||||
reflection = klass.reflect_on_association(association)
|
||||
assert reflection, "#{klass.name} does not have any relationship to #{association}"
|
||||
assert_equal :has_many, reflection.macro
|
||||
|
||||
if through
|
||||
through_reflection = klass.reflect_on_association(through)
|
||||
assert through_reflection, "#{klass.name} does not have any relationship to #{through}"
|
||||
assert_equal(through, reflection.options[:through])
|
||||
end
|
||||
|
||||
if dependent
|
||||
assert_equal dependent.to_s,
|
||||
reflection.options[:dependent].to_s,
|
||||
"#{association} should have #{dependent} dependency"
|
||||
end
|
||||
|
||||
# Check for the existence of the foreign key on the other table
|
||||
unless reflection.options[:through]
|
||||
if reflection.options[:foreign_key]
|
||||
fk = reflection.options[:foreign_key]
|
||||
elsif reflection.options[:as]
|
||||
fk = reflection.options[:as].to_s.foreign_key
|
||||
else
|
||||
fk = reflection.primary_key_name
|
||||
end
|
||||
|
||||
associated_klass_name = (reflection.options[:class_name] || association.to_s.classify)
|
||||
associated_klass = associated_klass_name.constantize
|
||||
|
||||
assert associated_klass.column_names.include?(fk.to_s),
|
||||
"#{associated_klass.name} does not have a #{fk} foreign key."
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensure that the has_one relationship exists. Will also test that the
|
||||
# associated table has the required columns. Works with polymorphic
|
||||
# associations.
|
||||
#
|
||||
# Example:
|
||||
# should_have_one :god # unless hindu
|
||||
#
|
||||
def should_have_one(*associations)
|
||||
get_options!(associations)
|
||||
klass = model_class
|
||||
associations.each do |association|
|
||||
should "have one #{association}" do
|
||||
reflection = klass.reflect_on_association(association)
|
||||
assert reflection, "#{klass.name} does not have any relationship to #{association}"
|
||||
assert_equal :has_one, reflection.macro
|
||||
|
||||
associated_klass = (reflection.options[:class_name] || association.to_s.camelize).constantize
|
||||
|
||||
if reflection.options[:foreign_key]
|
||||
fk = reflection.options[:foreign_key]
|
||||
elsif reflection.options[:as]
|
||||
fk = reflection.options[:as].to_s.foreign_key
|
||||
fk_type = fk.gsub(/_id$/, '_type')
|
||||
assert associated_klass.column_names.include?(fk_type),
|
||||
"#{associated_klass.name} does not have a #{fk_type} column."
|
||||
else
|
||||
fk = klass.name.foreign_key
|
||||
end
|
||||
assert associated_klass.column_names.include?(fk.to_s),
|
||||
"#{associated_klass.name} does not have a #{fk} foreign key."
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensures that the has_and_belongs_to_many relationship exists, and that the join
|
||||
# table is in place.
|
||||
#
|
||||
# should_have_and_belong_to_many :posts, :cars
|
||||
#
|
||||
def should_have_and_belong_to_many(*associations)
|
||||
get_options!(associations)
|
||||
klass = model_class
|
||||
|
||||
associations.each do |association|
|
||||
should "should have and belong to many #{association}" do
|
||||
reflection = klass.reflect_on_association(association)
|
||||
assert reflection, "#{klass.name} does not have any relationship to #{association}"
|
||||
assert_equal :has_and_belongs_to_many, reflection.macro
|
||||
table = reflection.options[:join_table]
|
||||
assert ::ActiveRecord::Base.connection.tables.include?(table), "table #{table} doesn't exist"
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensure that the belongs_to relationship exists.
|
||||
#
|
||||
# should_belong_to :parent
|
||||
#
|
||||
def should_belong_to(*associations)
|
||||
get_options!(associations)
|
||||
klass = model_class
|
||||
associations.each do |association|
|
||||
should "belong_to #{association}" do
|
||||
reflection = klass.reflect_on_association(association)
|
||||
assert reflection, "#{klass.name} does not have any relationship to #{association}"
|
||||
assert_equal :belongs_to, reflection.macro
|
||||
|
||||
unless reflection.options[:polymorphic]
|
||||
associated_klass = (reflection.options[:class_name] || association.to_s.camelize).constantize
|
||||
fk = reflection.options[:foreign_key] || reflection.primary_key_name
|
||||
assert klass.column_names.include?(fk.to_s), "#{klass.name} does not have a #{fk} foreign key."
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensure that the given class methods are defined on the model.
|
||||
#
|
||||
# should_have_class_methods :find, :destroy
|
||||
#
|
||||
def should_have_class_methods(*methods)
|
||||
get_options!(methods)
|
||||
klass = model_class
|
||||
methods.each do |method|
|
||||
should "respond to class method ##{method}" do
|
||||
assert_respond_to klass, method, "#{klass.name} does not have class method #{method}"
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensure that the given instance methods are defined on the model.
|
||||
#
|
||||
# should_have_instance_methods :email, :name, :name=
|
||||
#
|
||||
def should_have_instance_methods(*methods)
|
||||
get_options!(methods)
|
||||
klass = model_class
|
||||
methods.each do |method|
|
||||
should "respond to instance method ##{method}" do
|
||||
assert_respond_to klass.new, method, "#{klass.name} does not have instance method #{method}"
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensure that the given columns are defined on the models backing SQL table.
|
||||
#
|
||||
# should_have_db_columns :id, :email, :name, :created_at
|
||||
#
|
||||
def should_have_db_columns(*columns)
|
||||
column_type = get_options!(columns, :type)
|
||||
klass = model_class
|
||||
columns.each do |name|
|
||||
test_name = "have column #{name}"
|
||||
test_name += " of type #{column_type}" if column_type
|
||||
should test_name do
|
||||
column = klass.columns.detect {|c| c.name == name.to_s }
|
||||
assert column, "#{klass.name} does not have column #{name}"
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensure that the given column is defined on the models backing SQL table. The options are the same as
|
||||
# the instance variables defined on the column definition: :precision, :limit, :default, :null,
|
||||
# :primary, :type, :scale, and :sql_type.
|
||||
#
|
||||
# should_have_db_column :email, :type => "string", :default => nil, :precision => nil, :limit => 255,
|
||||
# :null => true, :primary => false, :scale => nil, :sql_type => 'varchar(255)'
|
||||
#
|
||||
def should_have_db_column(name, opts = {})
|
||||
klass = model_class
|
||||
test_name = "have column named :#{name}"
|
||||
test_name += " with options " + opts.inspect unless opts.empty?
|
||||
should test_name do
|
||||
column = klass.columns.detect {|c| c.name == name.to_s }
|
||||
assert column, "#{klass.name} does not have column #{name}"
|
||||
opts.each do |k, v|
|
||||
assert_equal column.instance_variable_get("@#{k}").to_s, v.to_s, ":#{name} column on table for #{klass} does not match option :#{k}"
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensures that there are DB indices on the given columns or tuples of columns.
|
||||
# Also aliased to should_have_index for readability
|
||||
#
|
||||
# should_have_indices :email, :name, [:commentable_type, :commentable_id]
|
||||
# should_have_index :age
|
||||
#
|
||||
def should_have_indices(*columns)
|
||||
table = model_class.name.tableize
|
||||
indices = ::ActiveRecord::Base.connection.indexes(table).map(&:columns)
|
||||
|
||||
columns.each do |column|
|
||||
should "have index on #{table} for #{column.inspect}" do
|
||||
columns = [column].flatten.map(&:to_s)
|
||||
assert_contains(indices, columns)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
alias_method :should_have_index, :should_have_indices
|
||||
|
||||
# Ensures that the model cannot be saved if one of the attributes listed is not accepted.
|
||||
#
|
||||
# If an instance variable has been created in the setup named after the
|
||||
# model being tested, then this method will use that. Otherwise, it will
|
||||
# create a new instance to test against.
|
||||
#
|
||||
# Options:
|
||||
# * <tt>:message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
|
||||
# Regexp or string. Default = <tt>/must be accepted/</tt>
|
||||
#
|
||||
# Example:
|
||||
# should_require_acceptance_of :eula
|
||||
#
|
||||
def should_require_acceptance_of(*attributes)
|
||||
message = get_options!(attributes, :message)
|
||||
message ||= /must be accepted/
|
||||
klass = model_class
|
||||
|
||||
attributes.each do |attribute|
|
||||
should "require #{attribute} to be accepted" do
|
||||
assert_bad_value(klass, attribute, false, message)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensures that the model has a method named scope_name that returns a NamedScope object with the
|
||||
# proxy options set to the options you supply. scope_name can be either a symbol, or a method
|
||||
# call which will be evaled against the model. The eval'd method call has access to all the same
|
||||
# instance variables that a should statement would.
|
||||
#
|
||||
# Options: Any of the options that the named scope would pass on to find.
|
||||
#
|
||||
# Example:
|
||||
#
|
||||
# should_have_named_scope :visible, :conditions => {:visible => true}
|
||||
#
|
||||
# Passes for
|
||||
#
|
||||
# named_scope :visible, :conditions => {:visible => true}
|
||||
#
|
||||
# Or for
|
||||
#
|
||||
# def self.visible
|
||||
# scoped(:conditions => {:visible => true})
|
||||
# end
|
||||
#
|
||||
# You can test lambdas or methods that return ActiveRecord#scoped calls:
|
||||
#
|
||||
# should_have_named_scope 'recent(5)', :limit => 5
|
||||
# should_have_named_scope 'recent(1)', :limit => 1
|
||||
#
|
||||
# Passes for
|
||||
# named_scope :recent, lambda {|c| {:limit => c}}
|
||||
#
|
||||
# Or for
|
||||
#
|
||||
# def self.recent(c)
|
||||
# scoped(:limit => c)
|
||||
# end
|
||||
#
|
||||
def should_have_named_scope(scope_call, *args)
|
||||
klass = model_class
|
||||
scope_opts = args.extract_options!
|
||||
scope_call = scope_call.to_s
|
||||
|
||||
context scope_call do
|
||||
setup do
|
||||
@scope = eval("#{klass}.#{scope_call}")
|
||||
end
|
||||
|
||||
should "return a scope object" do
|
||||
assert_equal ::ActiveRecord::NamedScope::Scope, @scope.class
|
||||
end
|
||||
|
||||
unless scope_opts.empty?
|
||||
should "scope itself to #{scope_opts.inspect}" do
|
||||
assert_equal scope_opts, @scope.proxy_options
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
private
|
||||
|
||||
include ThoughtBot::Shoulda::Private
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
@ -1,678 +0,0 @@
|
|||
module ThoughtBot # :nodoc:
|
||||
module Shoulda # :nodoc:
|
||||
# = Macro test helpers for your active record models
|
||||
#
|
||||
# These helpers will test most of the validations and associations for your ActiveRecord models.
|
||||
#
|
||||
# class UserTest < Test::Unit::TestCase
|
||||
# should_require_attributes :name, :phone_number
|
||||
# should_not_allow_values_for :phone_number, "abcd", "1234"
|
||||
# should_allow_values_for :phone_number, "(123) 456-7890"
|
||||
#
|
||||
# should_protect_attributes :password
|
||||
#
|
||||
# should_have_one :profile
|
||||
# should_have_many :dogs
|
||||
# should_have_many :messes, :through => :dogs
|
||||
# should_belong_to :lover
|
||||
# end
|
||||
#
|
||||
# For all of these helpers, the last parameter may be a hash of options.
|
||||
#
|
||||
module ActiveRecord
|
||||
# Ensures that the model cannot be saved if one of the attributes listed is not present.
|
||||
#
|
||||
# If an instance variable has been created in the setup named after the
|
||||
# model being tested, then this method will use that. Otherwise, it will
|
||||
# create a new instance to test against.
|
||||
#
|
||||
# Options:
|
||||
# * <tt>:message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
|
||||
# Regexp or string. Default = <tt>/blank/</tt>
|
||||
#
|
||||
# Example:
|
||||
# should_require_attributes :name, :phone_number
|
||||
#
|
||||
def should_require_attributes(*attributes)
|
||||
message = get_options!(attributes, :message)
|
||||
message ||= /blank/
|
||||
klass = model_class
|
||||
|
||||
attributes.each do |attribute|
|
||||
should "require #{attribute} to be set" do
|
||||
assert_bad_value(klass, attribute, nil, message)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensures that the model cannot be saved if one of the attributes listed is not unique.
|
||||
# Requires an existing record
|
||||
#
|
||||
# Options:
|
||||
# * <tt>:message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
|
||||
# Regexp or string. Default = <tt>/taken/</tt>
|
||||
# * <tt>:scoped_to</tt> - field(s) to scope the uniqueness to.
|
||||
#
|
||||
# Examples:
|
||||
# should_require_unique_attributes :keyword, :username
|
||||
# should_require_unique_attributes :name, :message => "O NOES! SOMEONE STOELED YER NAME!"
|
||||
# should_require_unique_attributes :email, :scoped_to => :name
|
||||
# should_require_unique_attributes :address, :scoped_to => [:first_name, :last_name]
|
||||
#
|
||||
def should_require_unique_attributes(*attributes)
|
||||
message, scope = get_options!(attributes, :message, :scoped_to)
|
||||
scope = [*scope].compact
|
||||
message ||= /taken/
|
||||
|
||||
klass = model_class
|
||||
attributes.each do |attribute|
|
||||
attribute = attribute.to_sym
|
||||
should "require unique value for #{attribute}#{" scoped to #{scope.join(', ')}" unless scope.blank?}" do
|
||||
assert existing = klass.find(:first), "Can't find first #{klass}"
|
||||
object = klass.new
|
||||
existing_value = existing.send(attribute)
|
||||
|
||||
if !scope.blank?
|
||||
scope.each do |s|
|
||||
assert_respond_to object, :"#{s}=", "#{klass.name} doesn't seem to have a #{s} attribute."
|
||||
object.send("#{s}=", existing.send(s))
|
||||
end
|
||||
end
|
||||
assert_bad_value(object, attribute, existing_value, message)
|
||||
|
||||
# Now test that the object is valid when changing the scoped attribute
|
||||
# TODO: There is a chance that we could change the scoped field
|
||||
# to a value that's already taken. An alternative implementation
|
||||
# could actually find all values for scope and create a unique
|
||||
# one.
|
||||
if !scope.blank?
|
||||
scope.each do |s|
|
||||
# Assume the scope is a foreign key if the field is nil
|
||||
object.send("#{s}=", existing.send(s).nil? ? 1 : existing.send(s).next)
|
||||
assert_good_value(object, attribute, existing_value, message)
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensures that the attribute cannot be set on mass update.
|
||||
#
|
||||
# should_protect_attributes :password, :admin_flag
|
||||
#
|
||||
def should_protect_attributes(*attributes)
|
||||
get_options!(attributes)
|
||||
klass = model_class
|
||||
|
||||
attributes.each do |attribute|
|
||||
attribute = attribute.to_sym
|
||||
should "protect #{attribute} from mass updates" do
|
||||
protected = klass.protected_attributes || []
|
||||
accessible = klass.accessible_attributes || []
|
||||
|
||||
assert protected.include?(attribute.to_s) || !accessible.include?(attribute.to_s),
|
||||
(accessible.empty? ?
|
||||
"#{klass} is protecting #{protected.to_a.to_sentence}, but not #{attribute}." :
|
||||
"#{klass} has made #{attribute} accessible")
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensures that the attribute cannot be changed once the record has been created.
|
||||
#
|
||||
# should_have_readonly_attributes :password, :admin_flag
|
||||
#
|
||||
def should_have_readonly_attributes(*attributes)
|
||||
get_options!(attributes)
|
||||
klass = model_class
|
||||
|
||||
attributes.each do |attribute|
|
||||
attribute = attribute.to_sym
|
||||
should "make #{attribute} read-only" do
|
||||
readonly = klass.readonly_attributes || []
|
||||
|
||||
assert readonly.include?(attribute.to_s),
|
||||
(readonly.empty? ?
|
||||
"#{klass} attribute #{attribute} is not read-only" :
|
||||
"#{klass} is making #{readonly.to_a.to_sentence} read-only, but not #{attribute}.")
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensures that the attribute cannot be set to the given values
|
||||
#
|
||||
# If an instance variable has been created in the setup named after the
|
||||
# model being tested, then this method will use that. Otherwise, it will
|
||||
# create a new instance to test against.
|
||||
#
|
||||
# Options:
|
||||
# * <tt>:message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
|
||||
# Regexp or string. Default = <tt>/invalid/</tt>
|
||||
#
|
||||
# Example:
|
||||
# should_not_allow_values_for :isbn, "bad 1", "bad 2"
|
||||
#
|
||||
def should_not_allow_values_for(attribute, *bad_values)
|
||||
message = get_options!(bad_values, :message)
|
||||
message ||= /invalid/
|
||||
klass = model_class
|
||||
bad_values.each do |v|
|
||||
should "not allow #{attribute} to be set to #{v.inspect}" do
|
||||
assert_bad_value(klass, attribute, v, message)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensures that the attribute can be set to the given values.
|
||||
#
|
||||
# If an instance variable has been created in the setup named after the
|
||||
# model being tested, then this method will use that. Otherwise, it will
|
||||
# create a new instance to test against.
|
||||
#
|
||||
# Example:
|
||||
# should_allow_values_for :isbn, "isbn 1 2345 6789 0", "ISBN 1-2345-6789-0"
|
||||
#
|
||||
def should_allow_values_for(attribute, *good_values)
|
||||
get_options!(good_values)
|
||||
klass = model_class
|
||||
good_values.each do |v|
|
||||
should "allow #{attribute} to be set to #{v.inspect}" do
|
||||
assert_good_value(klass, attribute, v)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensures that the length of the attribute is in the given range
|
||||
#
|
||||
# If an instance variable has been created in the setup named after the
|
||||
# model being tested, then this method will use that. Otherwise, it will
|
||||
# create a new instance to test against.
|
||||
#
|
||||
# Options:
|
||||
# * <tt>:short_message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
|
||||
# Regexp or string. Default = <tt>/short/</tt>
|
||||
# * <tt>:long_message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
|
||||
# Regexp or string. Default = <tt>/long/</tt>
|
||||
#
|
||||
# Example:
|
||||
# should_ensure_length_in_range :password, (6..20)
|
||||
#
|
||||
def should_ensure_length_in_range(attribute, range, opts = {})
|
||||
short_message, long_message = get_options!([opts], :short_message, :long_message)
|
||||
short_message ||= /short/
|
||||
long_message ||= /long/
|
||||
|
||||
klass = model_class
|
||||
min_length = range.first
|
||||
max_length = range.last
|
||||
same_length = (min_length == max_length)
|
||||
|
||||
if min_length > 0
|
||||
should "not allow #{attribute} to be less than #{min_length} chars long" do
|
||||
min_value = "x" * (min_length - 1)
|
||||
assert_bad_value(klass, attribute, min_value, short_message)
|
||||
end
|
||||
end
|
||||
|
||||
if min_length > 0
|
||||
should "allow #{attribute} to be exactly #{min_length} chars long" do
|
||||
min_value = "x" * min_length
|
||||
assert_good_value(klass, attribute, min_value, short_message)
|
||||
end
|
||||
end
|
||||
|
||||
should "not allow #{attribute} to be more than #{max_length} chars long" do
|
||||
max_value = "x" * (max_length + 1)
|
||||
assert_bad_value(klass, attribute, max_value, long_message)
|
||||
end
|
||||
|
||||
unless same_length
|
||||
should "allow #{attribute} to be exactly #{max_length} chars long" do
|
||||
max_value = "x" * max_length
|
||||
assert_good_value(klass, attribute, max_value, long_message)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensures that the length of the attribute is at least a certain length
|
||||
#
|
||||
# If an instance variable has been created in the setup named after the
|
||||
# model being tested, then this method will use that. Otherwise, it will
|
||||
# create a new instance to test against.
|
||||
#
|
||||
# Options:
|
||||
# * <tt>:short_message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
|
||||
# Regexp or string. Default = <tt>/short/</tt>
|
||||
#
|
||||
# Example:
|
||||
# should_ensure_length_at_least :name, 3
|
||||
#
|
||||
def should_ensure_length_at_least(attribute, min_length, opts = {})
|
||||
short_message = get_options!([opts], :short_message)
|
||||
short_message ||= /short/
|
||||
|
||||
klass = model_class
|
||||
|
||||
if min_length > 0
|
||||
min_value = "x" * (min_length - 1)
|
||||
should "not allow #{attribute} to be less than #{min_length} chars long" do
|
||||
assert_bad_value(klass, attribute, min_value, short_message)
|
||||
end
|
||||
end
|
||||
should "allow #{attribute} to be at least #{min_length} chars long" do
|
||||
valid_value = "x" * (min_length)
|
||||
assert_good_value(klass, attribute, valid_value, short_message)
|
||||
end
|
||||
end
|
||||
|
||||
# Ensures that the length of the attribute is exactly a certain length
|
||||
#
|
||||
# If an instance variable has been created in the setup named after the
|
||||
# model being tested, then this method will use that. Otherwise, it will
|
||||
# create a new instance to test against.
|
||||
#
|
||||
# Options:
|
||||
# * <tt>:message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
|
||||
# Regexp or string. Default = <tt>/short/</tt>
|
||||
#
|
||||
# Example:
|
||||
# should_ensure_length_is :ssn, 9
|
||||
#
|
||||
def should_ensure_length_is(attribute, length, opts = {})
|
||||
message = get_options!([opts], :message)
|
||||
message ||= /wrong length/
|
||||
|
||||
klass = model_class
|
||||
|
||||
should "not allow #{attribute} to be less than #{length} chars long" do
|
||||
min_value = "x" * (length - 1)
|
||||
assert_bad_value(klass, attribute, min_value, message)
|
||||
end
|
||||
|
||||
should "not allow #{attribute} to be greater than #{length} chars long" do
|
||||
max_value = "x" * (length + 1)
|
||||
assert_bad_value(klass, attribute, max_value, message)
|
||||
end
|
||||
|
||||
should "allow #{attribute} to be #{length} chars long" do
|
||||
valid_value = "x" * (length)
|
||||
assert_good_value(klass, attribute, valid_value, message)
|
||||
end
|
||||
end
|
||||
|
||||
# Ensure that the attribute is in the range specified
|
||||
#
|
||||
# If an instance variable has been created in the setup named after the
|
||||
# model being tested, then this method will use that. Otherwise, it will
|
||||
# create a new instance to test against.
|
||||
#
|
||||
# Options:
|
||||
# * <tt>:low_message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
|
||||
# Regexp or string. Default = <tt>/included/</tt>
|
||||
# * <tt>:high_message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
|
||||
# Regexp or string. Default = <tt>/included/</tt>
|
||||
#
|
||||
# Example:
|
||||
# should_ensure_value_in_range :age, (0..100)
|
||||
#
|
||||
def should_ensure_value_in_range(attribute, range, opts = {})
|
||||
low_message, high_message = get_options!([opts], :low_message, :high_message)
|
||||
low_message ||= /included/
|
||||
high_message ||= /included/
|
||||
|
||||
klass = model_class
|
||||
min = range.first
|
||||
max = range.last
|
||||
|
||||
should "not allow #{attribute} to be less than #{min}" do
|
||||
v = min - 1
|
||||
assert_bad_value(klass, attribute, v, low_message)
|
||||
end
|
||||
|
||||
should "allow #{attribute} to be #{min}" do
|
||||
v = min
|
||||
assert_good_value(klass, attribute, v, low_message)
|
||||
end
|
||||
|
||||
should "not allow #{attribute} to be more than #{max}" do
|
||||
v = max + 1
|
||||
assert_bad_value(klass, attribute, v, high_message)
|
||||
end
|
||||
|
||||
should "allow #{attribute} to be #{max}" do
|
||||
v = max
|
||||
assert_good_value(klass, attribute, v, high_message)
|
||||
end
|
||||
end
|
||||
|
||||
# Ensure that the attribute is numeric
|
||||
#
|
||||
# If an instance variable has been created in the setup named after the
|
||||
# model being tested, then this method will use that. Otherwise, it will
|
||||
# create a new instance to test against.
|
||||
#
|
||||
# Options:
|
||||
# * <tt>:message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
|
||||
# Regexp or string. Default = <tt>/number/</tt>
|
||||
#
|
||||
# Example:
|
||||
# should_only_allow_numeric_values_for :age
|
||||
#
|
||||
def should_only_allow_numeric_values_for(*attributes)
|
||||
message = get_options!(attributes, :message)
|
||||
message ||= /number/
|
||||
klass = model_class
|
||||
attributes.each do |attribute|
|
||||
attribute = attribute.to_sym
|
||||
should "only allow numeric values for #{attribute}" do
|
||||
assert_bad_value(klass, attribute, "abcd", message)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensures that the has_many relationship exists. Will also test that the
|
||||
# associated table has the required columns. Works with polymorphic
|
||||
# associations.
|
||||
#
|
||||
# Options:
|
||||
# * <tt>:through</tt> - association name for <tt>has_many :through</tt>
|
||||
# * <tt>:dependent</tt> - tests that the association makes use of the dependent option.
|
||||
#
|
||||
# Example:
|
||||
# should_have_many :friends
|
||||
# should_have_many :enemies, :through => :friends
|
||||
# should_have_many :enemies, :dependent => :destroy
|
||||
#
|
||||
def should_have_many(*associations)
|
||||
through, dependent = get_options!(associations, :through, :dependent)
|
||||
klass = model_class
|
||||
associations.each do |association|
|
||||
name = "have many #{association}"
|
||||
name += " through #{through}" if through
|
||||
name += " dependent => #{dependent}" if dependent
|
||||
should name do
|
||||
reflection = klass.reflect_on_association(association)
|
||||
assert reflection, "#{klass.name} does not have any relationship to #{association}"
|
||||
assert_equal :has_many, reflection.macro
|
||||
|
||||
if through
|
||||
through_reflection = klass.reflect_on_association(through)
|
||||
assert through_reflection, "#{klass.name} does not have any relationship to #{through}"
|
||||
assert_equal(through, reflection.options[:through])
|
||||
end
|
||||
|
||||
if dependent
|
||||
assert_equal dependent.to_s,
|
||||
reflection.options[:dependent].to_s,
|
||||
"#{association} should have #{dependent} dependency"
|
||||
end
|
||||
|
||||
# Check for the existence of the foreign key on the other table
|
||||
unless reflection.options[:through]
|
||||
if reflection.options[:foreign_key]
|
||||
fk = reflection.options[:foreign_key]
|
||||
elsif reflection.options[:as]
|
||||
fk = reflection.options[:as].to_s.foreign_key
|
||||
else
|
||||
fk = reflection.primary_key_name
|
||||
end
|
||||
|
||||
associated_klass_name = (reflection.options[:class_name] || association.to_s.classify)
|
||||
associated_klass = associated_klass_name.constantize
|
||||
|
||||
assert associated_klass.column_names.include?(fk.to_s),
|
||||
"#{associated_klass.name} does not have a #{fk} foreign key."
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensure that the has_one relationship exists. Will also test that the
|
||||
# associated table has the required columns. Works with polymorphic
|
||||
# associations.
|
||||
#
|
||||
# Example:
|
||||
# should_have_one :god # unless hindu
|
||||
#
|
||||
def should_have_one(*associations)
|
||||
get_options!(associations)
|
||||
klass = model_class
|
||||
associations.each do |association|
|
||||
should "have one #{association}" do
|
||||
reflection = klass.reflect_on_association(association)
|
||||
assert reflection, "#{klass.name} does not have any relationship to #{association}"
|
||||
assert_equal :has_one, reflection.macro
|
||||
|
||||
associated_klass = (reflection.options[:class_name] || association.to_s.camelize).constantize
|
||||
|
||||
if reflection.options[:foreign_key]
|
||||
fk = reflection.options[:foreign_key]
|
||||
elsif reflection.options[:as]
|
||||
fk = reflection.options[:as].to_s.foreign_key
|
||||
fk_type = fk.gsub(/_id$/, '_type')
|
||||
assert associated_klass.column_names.include?(fk_type),
|
||||
"#{associated_klass.name} does not have a #{fk_type} column."
|
||||
else
|
||||
fk = klass.name.foreign_key
|
||||
end
|
||||
assert associated_klass.column_names.include?(fk.to_s),
|
||||
"#{associated_klass.name} does not have a #{fk} foreign key."
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensures that the has_and_belongs_to_many relationship exists, and that the join
|
||||
# table is in place.
|
||||
#
|
||||
# should_have_and_belong_to_many :posts, :cars
|
||||
#
|
||||
def should_have_and_belong_to_many(*associations)
|
||||
get_options!(associations)
|
||||
klass = model_class
|
||||
|
||||
associations.each do |association|
|
||||
should "should have and belong to many #{association}" do
|
||||
reflection = klass.reflect_on_association(association)
|
||||
assert reflection, "#{klass.name} does not have any relationship to #{association}"
|
||||
assert_equal :has_and_belongs_to_many, reflection.macro
|
||||
table = reflection.options[:join_table]
|
||||
assert ::ActiveRecord::Base.connection.tables.include?(table), "table #{table} doesn't exist"
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensure that the belongs_to relationship exists.
|
||||
#
|
||||
# should_belong_to :parent
|
||||
#
|
||||
def should_belong_to(*associations)
|
||||
get_options!(associations)
|
||||
klass = model_class
|
||||
associations.each do |association|
|
||||
should "belong_to #{association}" do
|
||||
reflection = klass.reflect_on_association(association)
|
||||
assert reflection, "#{klass.name} does not have any relationship to #{association}"
|
||||
assert_equal :belongs_to, reflection.macro
|
||||
|
||||
unless reflection.options[:polymorphic]
|
||||
associated_klass = (reflection.options[:class_name] || association.to_s.camelize).constantize
|
||||
fk = reflection.options[:foreign_key] || reflection.primary_key_name
|
||||
assert klass.column_names.include?(fk.to_s), "#{klass.name} does not have a #{fk} foreign key."
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensure that the given class methods are defined on the model.
|
||||
#
|
||||
# should_have_class_methods :find, :destroy
|
||||
#
|
||||
def should_have_class_methods(*methods)
|
||||
get_options!(methods)
|
||||
klass = model_class
|
||||
methods.each do |method|
|
||||
should "respond to class method ##{method}" do
|
||||
assert_respond_to klass, method, "#{klass.name} does not have class method #{method}"
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensure that the given instance methods are defined on the model.
|
||||
#
|
||||
# should_have_instance_methods :email, :name, :name=
|
||||
#
|
||||
def should_have_instance_methods(*methods)
|
||||
get_options!(methods)
|
||||
klass = model_class
|
||||
methods.each do |method|
|
||||
should "respond to instance method ##{method}" do
|
||||
assert_respond_to klass.new, method, "#{klass.name} does not have instance method #{method}"
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensure that the given columns are defined on the models backing SQL table.
|
||||
#
|
||||
# should_have_db_columns :id, :email, :name, :created_at
|
||||
#
|
||||
def should_have_db_columns(*columns)
|
||||
column_type = get_options!(columns, :type)
|
||||
klass = model_class
|
||||
columns.each do |name|
|
||||
test_name = "have column #{name}"
|
||||
test_name += " of type #{column_type}" if column_type
|
||||
should test_name do
|
||||
column = klass.columns.detect {|c| c.name == name.to_s }
|
||||
assert column, "#{klass.name} does not have column #{name}"
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensure that the given column is defined on the models backing SQL table. The options are the same as
|
||||
# the instance variables defined on the column definition: :precision, :limit, :default, :null,
|
||||
# :primary, :type, :scale, and :sql_type.
|
||||
#
|
||||
# should_have_db_column :email, :type => "string", :default => nil, :precision => nil, :limit => 255,
|
||||
# :null => true, :primary => false, :scale => nil, :sql_type => 'varchar(255)'
|
||||
#
|
||||
def should_have_db_column(name, opts = {})
|
||||
klass = model_class
|
||||
test_name = "have column named :#{name}"
|
||||
test_name += " with options " + opts.inspect unless opts.empty?
|
||||
should test_name do
|
||||
column = klass.columns.detect {|c| c.name == name.to_s }
|
||||
assert column, "#{klass.name} does not have column #{name}"
|
||||
opts.each do |k, v|
|
||||
assert_equal column.instance_variable_get("@#{k}").to_s, v.to_s, ":#{name} column on table for #{klass} does not match option :#{k}"
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensures that there are DB indices on the given columns or tuples of columns.
|
||||
# Also aliased to should_have_index for readability
|
||||
#
|
||||
# should_have_indices :email, :name, [:commentable_type, :commentable_id]
|
||||
# should_have_index :age
|
||||
#
|
||||
def should_have_indices(*columns)
|
||||
table = model_class.name.tableize
|
||||
indices = ::ActiveRecord::Base.connection.indexes(table).map(&:columns)
|
||||
|
||||
columns.each do |column|
|
||||
should "have index on #{table} for #{column.inspect}" do
|
||||
columns = [column].flatten.map(&:to_s)
|
||||
assert_contains(indices, columns)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
alias_method :should_have_index, :should_have_indices
|
||||
|
||||
# Ensures that the model cannot be saved if one of the attributes listed is not accepted.
|
||||
#
|
||||
# If an instance variable has been created in the setup named after the
|
||||
# model being tested, then this method will use that. Otherwise, it will
|
||||
# create a new instance to test against.
|
||||
#
|
||||
# Options:
|
||||
# * <tt>:message</tt> - value the test expects to find in <tt>errors.on(:attribute)</tt>.
|
||||
# Regexp or string. Default = <tt>/must be accepted/</tt>
|
||||
#
|
||||
# Example:
|
||||
# should_require_acceptance_of :eula
|
||||
#
|
||||
def should_require_acceptance_of(*attributes)
|
||||
message = get_options!(attributes, :message)
|
||||
message ||= /must be accepted/
|
||||
klass = model_class
|
||||
|
||||
attributes.each do |attribute|
|
||||
should "require #{attribute} to be accepted" do
|
||||
assert_bad_value(klass, attribute, false, message)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
# Ensures that the model has a method named scope_name that returns a NamedScope object with the
|
||||
# proxy options set to the options you supply. scope_name can be either a symbol, or a method
|
||||
# call which will be evaled against the model. The eval'd method call has access to all the same
|
||||
# instance variables that a should statement would.
|
||||
#
|
||||
# Options: Any of the options that the named scope would pass on to find.
|
||||
#
|
||||
# Example:
|
||||
#
|
||||
# should_have_named_scope :visible, :conditions => {:visible => true}
|
||||
#
|
||||
# Passes for
|
||||
#
|
||||
# named_scope :visible, :conditions => {:visible => true}
|
||||
#
|
||||
# Or for
|
||||
#
|
||||
# def self.visible
|
||||
# scoped(:conditions => {:visible => true})
|
||||
# end
|
||||
#
|
||||
# You can test lambdas or methods that return ActiveRecord#scoped calls:
|
||||
#
|
||||
# should_have_named_scope 'recent(5)', :limit => 5
|
||||
# should_have_named_scope 'recent(1)', :limit => 1
|
||||
#
|
||||
# Passes for
|
||||
# named_scope :recent, lambda {|c| {:limit => c}}
|
||||
#
|
||||
# Or for
|
||||
#
|
||||
# def self.recent(c)
|
||||
# scoped(:limit => c)
|
||||
# end
|
||||
#
|
||||
def should_have_named_scope(scope_call, *args)
|
||||
klass = model_class
|
||||
scope_opts = args.extract_options!
|
||||
scope_call = scope_call.to_s
|
||||
|
||||
context scope_call do
|
||||
setup do
|
||||
@scope = eval("#{klass}.#{scope_call}")
|
||||
end
|
||||
|
||||
should "return a scope object" do
|
||||
assert_equal ::ActiveRecord::NamedScope::Scope, @scope.class
|
||||
end
|
||||
|
||||
unless scope_opts.empty?
|
||||
should "scope itself to #{scope_opts.inspect}" do
|
||||
assert_equal scope_opts, @scope.proxy_options
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
private
|
||||
|
||||
include ThoughtBot::Shoulda::Private
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
module Thoughtbot # :nodoc:
|
||||
module ThoughtBot # :nodoc:
|
||||
module Shoulda # :nodoc:
|
||||
module Assertions
|
||||
# Asserts that two arrays contain the same elements, the same number of times. Essentially ==, but unordered.
|
||||
|
|
|
|||
|
|
@ -8,14 +8,6 @@ module ThoughtBot # :nodoc:
|
|||
end
|
||||
|
||||
module ClassMethods
|
||||
# Loads all fixture files (<tt>test/fixtures/*.yml</tt>)
|
||||
def load_all_fixtures
|
||||
all_fixtures = Dir.glob(File.join(Test::Unit::TestCase.fixture_path, "*.yml")).collect do |f|
|
||||
File.basename(f, '.yml').to_sym
|
||||
end
|
||||
fixtures *all_fixtures
|
||||
end
|
||||
|
||||
# Macro that creates a test asserting a change between the return value
|
||||
# of an expression that is run before and after the current setup block
|
||||
# is run. This is similar to Active Support's <tt>assert_difference</tt>
|
||||
|
|
@ -91,21 +83,6 @@ module ThoughtBot # :nodoc:
|
|||
puts("#{caller.first}: #{msg}")
|
||||
end
|
||||
|
||||
# Asserts that the given object can be saved
|
||||
#
|
||||
# assert_save User.new(params)
|
||||
def assert_save(obj)
|
||||
assert obj.save, "Errors: #{pretty_error_messages obj}"
|
||||
obj.reload
|
||||
end
|
||||
|
||||
# Asserts that the given object is valid
|
||||
#
|
||||
# assert_valid User.new(params)
|
||||
def assert_valid(obj)
|
||||
assert obj.valid?, "Errors: #{pretty_error_messages obj}"
|
||||
end
|
||||
|
||||
# Asserts that an email was delivered. Can take a block that can further
|
||||
# narrow down the types of emails you're expecting.
|
||||
#
|
||||
|
|
@ -137,68 +114,6 @@ module ThoughtBot # :nodoc:
|
|||
ActionMailer::Base.deliveries.each { |m| msg << " '#{m.subject}' sent to #{m.to.to_sentence}\n" }
|
||||
assert ActionMailer::Base.deliveries.empty?, msg
|
||||
end
|
||||
|
||||
# Asserts that an Active Record model validates with the passed
|
||||
# <tt>value</tt> by making sure the <tt>error_message_to_avoid</tt> is not
|
||||
# contained within the list of errors for that attribute.
|
||||
#
|
||||
# assert_good_value(User.new, :email, "user@example.com")
|
||||
# assert_good_value(User.new, :ssn, "123456789", /length/)
|
||||
#
|
||||
# If a class is passed as the first argument, a new object will be
|
||||
# instantiated before the assertion. If an instance variable exists with
|
||||
# the same name as the class (underscored), that object will be used
|
||||
# instead.
|
||||
#
|
||||
# assert_good_value(User, :email, "user@example.com")
|
||||
#
|
||||
# @product = Product.new(:tangible => false)
|
||||
# assert_good_value(Product, :price, "0")
|
||||
def assert_good_value(object_or_klass, attribute, value, error_message_to_avoid = //)
|
||||
object = get_instance_of(object_or_klass)
|
||||
object.send("#{attribute}=", value)
|
||||
object.valid?
|
||||
assert_does_not_contain(object.errors.on(attribute), error_message_to_avoid, "when set to #{value.inspect}")
|
||||
end
|
||||
|
||||
# Asserts that an Active Record model invalidates the passed
|
||||
# <tt>value</tt> by making sure the <tt>error_message_to_expect</tt> is
|
||||
# contained within the list of errors for that attribute.
|
||||
#
|
||||
# assert_bad_value(User.new, :email, "invalid")
|
||||
# assert_bad_value(User.new, :ssn, "123", /length/)
|
||||
#
|
||||
# If a class is passed as the first argument, a new object will be
|
||||
# instantiated before the assertion. If an instance variable exists with
|
||||
# the same name as the class (underscored), that object will be used
|
||||
# instead.
|
||||
#
|
||||
# assert_bad_value(User, :email, "invalid")
|
||||
#
|
||||
# @product = Product.new(:tangible => true)
|
||||
# assert_bad_value(Product, :price, "0")
|
||||
def assert_bad_value(object_or_klass, attribute, value, error_message_to_expect = /invalid/)
|
||||
object = get_instance_of(object_or_klass)
|
||||
object.send("#{attribute}=", value)
|
||||
assert !object.valid?, "#{object.class} allowed #{value.inspect} as a value for #{attribute}"
|
||||
assert object.errors.on(attribute), "There are no errors on #{attribute} after being set to #{value.inspect}"
|
||||
assert_contains(object.errors.on(attribute), error_message_to_expect, "when set to #{value.inspect}")
|
||||
end
|
||||
|
||||
def pretty_error_messages(obj)
|
||||
obj.errors.map { |a, m| "#{a} #{m} (#{obj.send(a).inspect})" }
|
||||
end
|
||||
|
||||
private
|
||||
|
||||
def get_instance_of(object_or_klass)
|
||||
if object_or_klass.is_a?(Class)
|
||||
klass = object_or_klass
|
||||
instance_variable_get("@#{klass.to_s.underscore}") || klass.new
|
||||
else
|
||||
object_or_klass
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
require File.join(File.dirname(__FILE__), '..', 'test_helper')
|
||||
|
||||
class PrivateHelpersTest < Test::Unit::TestCase # :nodoc:
|
||||
include ThoughtBot::Shoulda::ActiveRecord
|
||||
include ThoughtBot::Shoulda::Private
|
||||
context "get_options!" do
|
||||
should "remove opts from args" do
|
||||
args = [:a, :b, {}]
|
||||
|
|
|
|||
Loading…
Reference in a new issue