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versioned_test.rb
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versioned_test.rb
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require File.join(File.dirname(__FILE__), 'abstract_unit')
require File.join(File.dirname(__FILE__), 'fixtures/page')
require File.join(File.dirname(__FILE__), 'fixtures/widget')
class VersionedTest < ActiveSupport::TestCase
fixtures :pages, :page_versions, :locked_pages, :locked_pages_revisions, :authors, :landmarks, :landmark_versions
set_fixture_class :page_versions => Page::Version
def test_saves_versioned_copy
p = Page.create! :title => 'first title', :body => 'first body'
assert !p.new_record?
assert_equal 1, p.versions.size
assert_equal 1, p.version
assert_instance_of Page.versioned_class, p.versions.first
end
def test_saves_without_revision
p = pages(:welcome)
old_versions = p.versions.count
p.save_without_revision
p.without_revision do
p.update_attributes :title => 'changed'
end
assert_equal old_versions, p.versions.count
end
def test_rollback_with_version_number
p = pages(:welcome)
assert_equal 24, p.version
assert_equal 'Welcome to the weblog', p.title
assert p.revert_to!(23), "Couldn't revert to 23"
assert_equal 23, p.version
assert_equal 'Welcome to the weblg', p.title
end
def test_versioned_class_name
assert_equal 'Version', Page.versioned_class_name
assert_equal 'LockedPageRevision', LockedPage.versioned_class_name
end
def test_versioned_class
assert_equal Page::Version, Page.versioned_class
assert_equal LockedPage::LockedPageRevision, LockedPage.versioned_class
end
def test_special_methods
assert_nothing_raised { pages(:welcome).feeling_good? }
assert_nothing_raised { pages(:welcome).versions.first.feeling_good? }
assert_nothing_raised { locked_pages(:welcome).hello_world }
assert_nothing_raised { locked_pages(:welcome).versions.first.hello_world }
end
def test_rollback_with_version_class
p = pages(:welcome)
assert_equal 24, p.version
assert_equal 'Welcome to the weblog', p.title
assert p.revert_to!(p.versions.find_by_version(23)), "Couldn't revert to 23"
assert_equal 23, p.version
assert_equal 'Welcome to the weblg', p.title
end
def test_rollback_fails_with_invalid_revision
p = locked_pages(:welcome)
assert !p.revert_to!(locked_pages(:thinking))
end
def test_saves_versioned_copy_with_options
p = LockedPage.create! :title => 'first title'
assert !p.new_record?
assert_equal 1, p.versions.size
assert_instance_of LockedPage.versioned_class, p.versions.first
end
def test_rollback_with_version_number_with_options
p = locked_pages(:welcome)
assert_equal 'Welcome to the weblog', p.title
assert_equal 'LockedPage', p.versions.first.version_type
assert p.revert_to!(p.versions.first.lock_version), "Couldn't revert to 23"
assert_equal 'Welcome to the weblg', p.title
assert_equal 'LockedPage', p.versions.first.version_type
end
def test_rollback_with_version_class_with_options
p = locked_pages(:welcome)
assert_equal 'Welcome to the weblog', p.title
assert_equal 'LockedPage', p.versions.first.version_type
assert p.revert_to!(p.versions.first), "Couldn't revert to 1"
assert_equal 'Welcome to the weblg', p.title
assert_equal 'LockedPage', p.versions.first.version_type
end
def test_saves_versioned_copy_with_sti
p = SpecialLockedPage.create! :title => 'first title'
assert !p.new_record?
assert_equal 1, p.versions.size
assert_instance_of LockedPage.versioned_class, p.versions.first
assert_equal 'SpecialLockedPage', p.versions.first.version_type
end
def test_rollback_with_version_number_with_sti
p = locked_pages(:thinking)
assert_equal 'So I was thinking', p.title
assert p.revert_to!(p.versions.first.lock_version), "Couldn't revert to 1"
assert_equal 'So I was thinking!!!', p.title
assert_equal 'SpecialLockedPage', p.versions.first.version_type
end
def test_lock_version_works_with_versioning
p = locked_pages(:thinking)
p2 = LockedPage.find(p.id)
p.title = 'fresh title'
p.save
assert_equal 2, p.versions.size # limit!
assert_raises(ActiveRecord::StaleObjectError) do
p2.title = 'stale title'
p2.save
end
end
def test_version_if_condition
p = Page.create! :title => "title"
assert_equal 1, p.version
Page.feeling_good = false
p.save
assert_equal 1, p.version
Page.feeling_good = true
end
def test_version_if_condition2
# set new if condition
Page.class_eval do
def new_feeling_good() title[0..0] == 'a'; end
alias_method :old_feeling_good, :feeling_good?
alias_method :feeling_good?, :new_feeling_good
end
p = Page.create! :title => "title"
assert_equal 1, p.version # version does not increment
assert_equal 1, p.versions.count
p.update_attributes(:title => 'new title')
assert_equal 1, p.version # version does not increment
assert_equal 1, p.versions.count
p.update_attributes(:title => 'a title')
assert_equal 2, p.version
assert_equal 2, p.versions.count
# reset original if condition
Page.class_eval { alias_method :feeling_good?, :old_feeling_good }
end
def test_version_if_condition_with_block
# set new if condition
old_condition = Page.version_condition
Page.version_condition = Proc.new { |page| page.title[0..0] == 'b' }
p = Page.create! :title => "title"
assert_equal 1, p.version # version does not increment
assert_equal 1, p.versions.count
p.update_attributes(:title => 'a title')
assert_equal 1, p.version # version does not increment
assert_equal 1, p.versions.count
p.update_attributes(:title => 'b title')
assert_equal 2, p.version
assert_equal 2, p.versions.count
# reset original if condition
Page.version_condition = old_condition
end
def test_version_no_limit
p = Page.create! :title => "title", :body => 'first body'
p.save
p.save
5.times do |i|
p.title = "title#{i}"
p.save
assert_equal "title#{i}", p.title
assert_equal (i+2), p.version
end
end
def test_version_max_limit
p = LockedPage.create! :title => "title"
p.update_attributes(:title => "title1")
p.update_attributes(:title => "title2")
5.times do |i|
p.title = "title#{i}"
p.save
assert_equal "title#{i}", p.title
assert_equal (i+4), p.lock_version
assert p.versions(true).size <= 2, "locked version can only store 2 versions"
end
end
def test_track_altered_attributes_default_value
assert !Page.track_altered_attributes
assert LockedPage.track_altered_attributes
assert SpecialLockedPage.track_altered_attributes
end
def test_track_altered_attributes
p = LockedPage.create! :title => "title"
assert_equal 1, p.lock_version
assert_equal 1, p.versions(true).size
p.body = 'whoa'
assert !p.save_version?
p.save
assert_equal 2, p.lock_version # still increments version because of optimistic locking
assert_equal 1, p.versions(true).size
p.title = 'updated title'
assert p.save_version?
p.save
assert_equal 3, p.lock_version
assert_equal 1, p.versions(true).size # version 1 deleted
p.title = 'updated title!'
assert p.save_version?
p.save
assert_equal 4, p.lock_version
assert_equal 2, p.versions(true).size # version 1 deleted
end
def test_find_versions
assert_equal 1, locked_pages(:welcome).versions.find(:all, :conditions => ['title LIKE ?', '%weblog%']).size
end
def test_find_version
assert_equal page_versions(:welcome_1), pages(:welcome).versions.find_by_version(23)
end
def test_with_sequence
assert_equal 'widgets_seq', Widget.versioned_class.sequence_name
3.times { Widget.create! :name => 'new widget' }
assert_equal 3, Widget.count
assert_equal 3, Widget.versioned_class.count
end
def test_has_many_through
assert_equal [authors(:caged), authors(:mly)], pages(:welcome).authors
end
def test_has_many_through_with_custom_association
assert_equal [authors(:caged), authors(:mly)], pages(:welcome).revisors
end
def test_referential_integrity
pages(:welcome).destroy
assert_equal 0, Page.count
assert_equal 0, Page::Version.count
end
def test_association_options
association = Page.reflect_on_association(:versions)
options = association.options
assert_equal :delete_all, options[:dependent]
association = Widget.reflect_on_association(:versions)
options = association.options
assert_equal :nullify, options[:dependent]
assert_equal 'version desc', options[:order]
assert_equal 'widget_id', options[:foreign_key]
widget = Widget.create! :name => 'new widget'
assert_equal 1, Widget.count
assert_equal 1, Widget.versioned_class.count
widget.destroy
assert_equal 0, Widget.count
assert_equal 1, Widget.versioned_class.count
end
def test_versioned_records_should_belong_to_parent
page = pages(:welcome)
page_version = page.versions.last
assert_equal page, page_version.page
end
def test_unaltered_attributes
landmarks(:washington).attributes = landmarks(:washington).attributes.except("id")
assert !landmarks(:washington).changed?
end
def test_unchanged_string_attributes
landmarks(:washington).attributes = landmarks(:washington).attributes.except("id").inject({}) { |params, (key, value)| params.update(key => value.to_s) }
assert !landmarks(:washington).changed?
end
def test_should_find_earliest_version
assert_equal page_versions(:welcome_1), pages(:welcome).versions.earliest
end
def test_should_find_latest_version
assert_equal page_versions(:welcome_2), pages(:welcome).versions.latest
end
def test_should_find_previous_version
assert_equal page_versions(:welcome_1), page_versions(:welcome_2).previous
assert_equal page_versions(:welcome_1), pages(:welcome).versions.before(page_versions(:welcome_2))
end
def test_should_find_next_version
assert_equal page_versions(:welcome_2), page_versions(:welcome_1).next
assert_equal page_versions(:welcome_2), pages(:welcome).versions.after(page_versions(:welcome_1))
end
def test_should_find_version_count
assert_equal 2, pages(:welcome).versions.size
end
def test_if_changed_creates_version_if_a_listed_column_is_changed
landmarks(:washington).name = "Washington"
assert landmarks(:washington).changed?
assert landmarks(:washington).altered?
end
def test_if_changed_creates_version_if_all_listed_columns_are_changed
landmarks(:washington).name = "Washington"
landmarks(:washington).latitude = 1.0
landmarks(:washington).longitude = 1.0
assert landmarks(:washington).changed?
assert landmarks(:washington).altered?
end
def test_if_changed_does_not_create_new_version_if_unlisted_column_is_changed
landmarks(:washington).doesnt_trigger_version = "This should not trigger version"
assert landmarks(:washington).changed?
assert !landmarks(:washington).altered?
end
def test_without_locking_temporarily_disables_optimistic_locking
enabled1 = false
block_called = false
ActiveRecord::Base.lock_optimistically = true
LockedPage.without_locking do
enabled1 = ActiveRecord::Base.lock_optimistically
block_called = true
end
enabled2 = ActiveRecord::Base.lock_optimistically
assert block_called
assert !enabled1
assert enabled2
end
def test_without_locking_reverts_optimistic_locking_settings_if_block_raises_exception
assert_raises(RuntimeError) do
LockedPage.without_locking do
raise RuntimeError, "oh noes"
end
end
assert ActiveRecord::Base.lock_optimistically
end
end