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require 'abstract_unit'
require 'fixtures/company'
require 'fixtures/project'
require 'fixtures/subscriber'
class InheritanceTest < Test::Unit::TestCase
fixtures :companies, :projects, :subscribers, :accounts
def test_company_descends_from_active_record
assert_raise(NoMethodError) { ActiveRecord::Base.descends_from_active_record? }
assert AbstractCompany.descends_from_active_record?, 'AbstractCompany should descend from ActiveRecord::Base'
assert Company.descends_from_active_record?, 'Company should descend from ActiveRecord::Base'
assert !Class.new(Company).descends_from_active_record?, 'Company subclass should not descend from ActiveRecord::Base'
end
def test_a_bad_type_column
#SQLServer need to turn Identity Insert On before manually inserting into the Identity column
if current_adapter?(:SQLServerAdapter, :SybaseAdapter)
Company.connection.execute "SET IDENTITY_INSERT companies ON"
end
Company.connection.insert "INSERT INTO companies (id, #{QUOTED_TYPE}, name) VALUES(100, 'bad_class!', 'Not happening')"
#We then need to turn it back Off before continuing.
if current_adapter?(:SQLServerAdapter, :SybaseAdapter)
Company.connection.execute "SET IDENTITY_INSERT companies OFF"
end
assert_raises(ActiveRecord::SubclassNotFound) { Company.find(100) }
end
def test_inheritance_find
assert Company.find(1).kind_of?(Firm), "37signals should be a firm"
assert Firm.find(1).kind_of?(Firm), "37signals should be a firm"
assert Company.find(2).kind_of?(Client), "Summit should be a client"
assert Client.find(2).kind_of?(Client), "Summit should be a client"
end
def test_alt_inheritance_find
switch_to_alt_inheritance_column
test_inheritance_find
switch_to_default_inheritance_column
end
def test_inheritance_find_all
companies = Company.find(:all, :order => 'id')
assert companies[0].kind_of?(Firm), "37signals should be a firm"
assert companies[1].kind_of?(Client), "Summit should be a client"
end
def test_alt_inheritance_find_all
switch_to_alt_inheritance_column
test_inheritance_find_all
switch_to_default_inheritance_column
end
def test_inheritance_save
firm = Firm.new
firm.name = "Next Angle"
firm.save
next_angle = Company.find(firm.id)
assert next_angle.kind_of?(Firm), "Next Angle should be a firm"
end
def test_alt_inheritance_save
switch_to_alt_inheritance_column
test_inheritance_save
switch_to_default_inheritance_column
end
def test_inheritance_condition
assert_equal 9, Company.count
assert_equal 2, Firm.count
assert_equal 3, Client.count
end
def test_alt_inheritance_condition
switch_to_alt_inheritance_column
test_inheritance_condition
switch_to_default_inheritance_column
end
def test_finding_incorrect_type_data
assert_raises(ActiveRecord::RecordNotFound) { Firm.find(2) }
assert_nothing_raised { Firm.find(1) }
end
def test_alt_finding_incorrect_type_data
switch_to_alt_inheritance_column
test_finding_incorrect_type_data
switch_to_default_inheritance_column
end
def test_update_all_within_inheritance
Client.update_all "name = 'I am a client'"
assert_equal "I am a client", Client.find(:all).first.name
assert_equal "37signals", Firm.find(:all).first.name
end
def test_alt_update_all_within_inheritance
switch_to_alt_inheritance_column
test_update_all_within_inheritance
switch_to_default_inheritance_column
end
def test_destroy_all_within_inheritance
Client.destroy_all
assert_equal 0, Client.count
assert_equal 2, Firm.count
end
def test_alt_destroy_all_within_inheritance
switch_to_alt_inheritance_column
test_destroy_all_within_inheritance
switch_to_default_inheritance_column
end
def test_find_first_within_inheritance
assert_kind_of Firm, Company.find(:first, :conditions => "name = '37signals'")
assert_kind_of Firm, Firm.find(:first, :conditions => "name = '37signals'")
assert_nil Client.find(:first, :conditions => "name = '37signals'")
end
def test_alt_find_first_within_inheritance
switch_to_alt_inheritance_column
test_find_first_within_inheritance
switch_to_default_inheritance_column
end
def test_complex_inheritance
very_special_client = VerySpecialClient.create("name" => "veryspecial")
assert_equal very_special_client, VerySpecialClient.find(:first, :conditions => "name = 'veryspecial'")
assert_equal very_special_client, SpecialClient.find(:first, :conditions => "name = 'veryspecial'")
assert_equal very_special_client, Company.find(:first, :conditions => "name = 'veryspecial'")
assert_equal very_special_client, Client.find(:first, :conditions => "name = 'veryspecial'")
assert_equal 1, Client.find(:all, :conditions => "name = 'Summit'").size
assert_equal very_special_client, Client.find(very_special_client.id)
end
def test_alt_complex_inheritance
switch_to_alt_inheritance_column
test_complex_inheritance
switch_to_default_inheritance_column
end
def test_eager_load_belongs_to_something_inherited
account = Account.find(1, :include => :firm)
assert_not_nil account.instance_variable_get("@firm"), "nil proves eager load failed"
end
def test_alt_eager_loading
switch_to_alt_inheritance_column
test_eager_load_belongs_to_something_inherited
switch_to_default_inheritance_column
end
def test_inheritance_without_mapping
assert_kind_of SpecialSubscriber, SpecialSubscriber.find("webster132")
assert_nothing_raised { s = SpecialSubscriber.new("name" => "And breaaaaathe!"); s.id = 'roger'; s.save }
end
private
def switch_to_alt_inheritance_column
# we don't want misleading test results, so get rid of the values in the type column
Company.find(:all, :order => 'id').each do |c|
c['type'] = nil
c.save
end
[ Company, Firm, Client].each { |klass| klass.reset_column_information }
Company.set_inheritance_column('ruby_type')
end
def switch_to_default_inheritance_column
[ Company, Firm, Client].each { |klass| klass.reset_column_information }
Company.set_inheritance_column('type')
end
end
class InheritanceComputeTypeTest < Test::Unit::TestCase
fixtures :companies
def setup
Dependencies.log_activity = true
end
def teardown
Dependencies.log_activity = false
self.class.const_remove :FirmOnTheFly rescue nil
Firm.const_remove :FirmOnTheFly rescue nil
end
def test_instantiation_doesnt_try_to_require_corresponding_file
foo = Firm.find(:first).clone
foo.ruby_type = foo.type = 'FirmOnTheFly'
foo.save!
# Should fail without FirmOnTheFly in the type condition.
assert_raise(ActiveRecord::RecordNotFound) { Firm.find(foo.id) }
# Nest FirmOnTheFly in the test case where Dependencies won't see it.
self.class.const_set :FirmOnTheFly, Class.new(Firm)
assert_raise(ActiveRecord::SubclassNotFound) { Firm.find(foo.id) }
# Nest FirmOnTheFly in Firm where Dependencies will see it.
# This is analogous to nesting models in a migration.
Firm.const_set :FirmOnTheFly, Class.new(Firm)
# And instantiate will find the existing constant rather than trying
# to require firm_on_the_fly.
assert_nothing_raised { assert_kind_of Firm::FirmOnTheFly, Firm.find(foo.id) }
end
end
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