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rails--rails/activerecord/test/cases/persistence_test.rb
2016-08-06 19:44:11 +02:00

999 lines
30 KiB
Ruby

require "cases/helper"
require "models/aircraft"
require "models/post"
require "models/comment"
require "models/author"
require "models/topic"
require "models/reply"
require "models/category"
require "models/company"
require "models/developer"
require "models/computer"
require "models/project"
require "models/minimalistic"
require "models/warehouse_thing"
require "models/parrot"
require "models/minivan"
require "models/owner"
require "models/person"
require "models/pet"
require "models/ship"
require "models/toy"
require "models/admin"
require "models/admin/user"
require "rexml/document"
class PersistenceTest < ActiveRecord::TestCase
fixtures :topics, :companies, :developers, :projects, :computers, :accounts, :minimalistics, "warehouse-things", :authors, :author_addresses, :categorizations, :categories, :posts, :minivans, :pets, :toys
# Oracle UPDATE does not support ORDER BY
unless current_adapter?(:OracleAdapter)
def test_update_all_ignores_order_without_limit_from_association
author = authors(:david)
assert_nothing_raised do
assert_equal author.posts_with_comments_and_categories.length, author.posts_with_comments_and_categories.update_all([ "body = ?", "bulk update!" ])
end
end
def test_update_all_doesnt_ignore_order
assert_equal authors(:david).id + 1, authors(:mary).id # make sure there is going to be a duplicate PK error
test_update_with_order_succeeds = lambda do |order|
begin
Author.order(order).update_all("id = id + 1")
rescue ActiveRecord::ActiveRecordError
false
end
end
if test_update_with_order_succeeds.call("id DESC")
assert !test_update_with_order_succeeds.call("id ASC") # test that this wasn't a fluke and using an incorrect order results in an exception
else
# test that we're failing because the current Arel's engine doesn't support UPDATE ORDER BY queries is using subselects instead
assert_sql(/\AUPDATE .+ \(SELECT .* ORDER BY id DESC\)\Z/i) do
test_update_with_order_succeeds.call("id DESC")
end
end
end
def test_update_all_with_order_and_limit_updates_subset_only
author = authors(:david)
assert_nothing_raised do
assert_equal 1, author.posts_sorted_by_id_limited.size
assert_equal 2, author.posts_sorted_by_id_limited.limit(2).to_a.size
assert_equal 1, author.posts_sorted_by_id_limited.update_all([ "body = ?", "bulk update!" ])
assert_equal "bulk update!", posts(:welcome).body
assert_not_equal "bulk update!", posts(:thinking).body
end
end
end
def test_update_many
topic_data = { 1 => { "content" => "1 updated" }, 2 => { "content" => "2 updated" } }
updated = Topic.update(topic_data.keys, topic_data.values)
assert_equal 2, updated.size
assert_equal "1 updated", Topic.find(1).content
assert_equal "2 updated", Topic.find(2).content
end
def test_delete_all
assert Topic.count > 0
assert_equal Topic.count, Topic.delete_all
end
def test_delete_all_with_joins_and_where_part_is_hash
where_args = {toys: {name: "Bone"}}
count = Pet.joins(:toys).where(where_args).count
assert_equal count, 1
assert_equal count, Pet.joins(:toys).where(where_args).delete_all
end
def test_delete_all_with_joins_and_where_part_is_not_hash
where_args = ["toys.name = ?", "Bone"]
count = Pet.joins(:toys).where(where_args).count
assert_equal count, 1
assert_equal count, Pet.joins(:toys).where(where_args).delete_all
end
def test_increment_attribute
assert_equal 50, accounts(:signals37).credit_limit
accounts(:signals37).increment! :credit_limit
assert_equal 51, accounts(:signals37, :reload).credit_limit
accounts(:signals37).increment(:credit_limit).increment!(:credit_limit)
assert_equal 53, accounts(:signals37, :reload).credit_limit
end
def test_increment_nil_attribute
assert_nil topics(:first).parent_id
topics(:first).increment! :parent_id
assert_equal 1, topics(:first).parent_id
end
def test_increment_attribute_by
assert_equal 50, accounts(:signals37).credit_limit
accounts(:signals37).increment! :credit_limit, 5
assert_equal 55, accounts(:signals37, :reload).credit_limit
accounts(:signals37).increment(:credit_limit, 1).increment!(:credit_limit, 3)
assert_equal 59, accounts(:signals37, :reload).credit_limit
end
def test_increment_updates_counter_in_db_using_offset
a1 = accounts(:signals37)
initial_credit = a1.credit_limit
a2 = Account.find(accounts(:signals37).id)
a1.increment!(:credit_limit)
a2.increment!(:credit_limit)
assert_equal initial_credit + 2, a1.reload.credit_limit
end
def test_destroy_all
conditions = "author_name = 'Mary'"
topics_by_mary = Topic.all.merge!(where: conditions, order: "id").to_a
assert ! topics_by_mary.empty?
assert_difference("Topic.count", -topics_by_mary.size) do
destroyed = Topic.where(conditions).destroy_all.sort_by(&:id)
assert_equal topics_by_mary, destroyed
assert destroyed.all?(&:frozen?), "destroyed topics should be frozen"
end
end
def test_destroy_many
clients = Client.all.merge!(order: "id").find([2, 3])
assert_difference("Client.count", -2) do
destroyed = Client.destroy([2, 3]).sort_by(&:id)
assert_equal clients, destroyed
assert destroyed.all?(&:frozen?), "destroyed clients should be frozen"
end
end
def test_becomes
assert_kind_of Reply, topics(:first).becomes(Reply)
assert_equal "The First Topic", topics(:first).becomes(Reply).title
end
def test_becomes_includes_errors
company = Company.new(name: nil)
assert !company.valid?
original_errors = company.errors
client = company.becomes(Client)
assert_equal original_errors.keys, client.errors.keys
end
def test_becomes_errors_base
child_class = Class.new(Admin::User) do
store_accessor :settings, :foo
def self.name; "Admin::ChildUser"; end
end
admin = Admin::User.new
admin.errors.add :token, :invalid
child = admin.becomes(child_class)
assert_equal [:token], child.errors.keys
assert_nothing_raised do
child.errors.add :foo, :invalid
end
end
def test_duped_becomes_persists_changes_from_the_original
original = topics(:first)
copy = original.dup.becomes(Reply)
copy.save!
assert_equal "The First Topic", Topic.find(copy.id).title
end
def test_becomes_includes_changed_attributes
company = Company.new(name: "37signals")
client = company.becomes(Client)
assert_equal "37signals", client.name
assert_equal %w{name}, client.changed
end
def test_delete_many
original_count = Topic.count
Topic.delete(deleting = [1, 2])
assert_equal original_count - deleting.size, Topic.count
end
def test_decrement_attribute
assert_equal 50, accounts(:signals37).credit_limit
accounts(:signals37).decrement!(:credit_limit)
assert_equal 49, accounts(:signals37, :reload).credit_limit
accounts(:signals37).decrement(:credit_limit).decrement!(:credit_limit)
assert_equal 47, accounts(:signals37, :reload).credit_limit
end
def test_decrement_attribute_by
assert_equal 50, accounts(:signals37).credit_limit
accounts(:signals37).decrement! :credit_limit, 5
assert_equal 45, accounts(:signals37, :reload).credit_limit
accounts(:signals37).decrement(:credit_limit, 1).decrement!(:credit_limit, 3)
assert_equal 41, accounts(:signals37, :reload).credit_limit
end
def test_create
topic = Topic.new
topic.title = "New Topic"
topic.save
topic_reloaded = Topic.find(topic.id)
assert_equal("New Topic", topic_reloaded.title)
end
def test_save!
topic = Topic.new(title: "New Topic")
assert topic.save!
reply = WrongReply.new
assert_raise(ActiveRecord::RecordInvalid) { reply.save! }
end
def test_save_null_string_attributes
topic = Topic.find(1)
topic.attributes = { "title" => "null", "author_name" => "null" }
topic.save!
topic.reload
assert_equal("null", topic.title)
assert_equal("null", topic.author_name)
end
def test_save_nil_string_attributes
topic = Topic.find(1)
topic.title = nil
topic.save!
topic.reload
assert_nil topic.title
end
def test_save_for_record_with_only_primary_key
minimalistic = Minimalistic.new
assert_nothing_raised { minimalistic.save }
end
def test_save_for_record_with_only_primary_key_that_is_provided
assert_nothing_raised { Minimalistic.create!(id: 2) }
end
def test_save_with_duping_of_destroyed_object
developer = Developer.first
developer.destroy
new_developer = developer.dup
new_developer.save
assert new_developer.persisted?
assert_not new_developer.destroyed?
end
def test_create_many
topics = Topic.create([ { "title" => "first" }, { "title" => "second" }])
assert_equal 2, topics.size
assert_equal "first", topics.first.title
end
def test_create_columns_not_equal_attributes
topic = Topic.instantiate(
"attributes" => {
"title" => "Another New Topic",
"does_not_exist" => "test"
}
)
assert_nothing_raised { topic.save }
end
def test_create_through_factory_with_block
topic = Topic.create("title" => "New Topic") do |t|
t.author_name = "David"
end
assert_equal("New Topic", topic.title)
assert_equal("David", topic.author_name)
end
def test_create_many_through_factory_with_block
topics = Topic.create([ { "title" => "first" }, { "title" => "second" }]) do |t|
t.author_name = "David"
end
assert_equal 2, topics.size
topic1, topic2 = Topic.find(topics[0].id), Topic.find(topics[1].id)
assert_equal "first", topic1.title
assert_equal "David", topic1.author_name
assert_equal "second", topic2.title
assert_equal "David", topic2.author_name
end
def test_update_object
topic = Topic.new
topic.title = "Another New Topic"
topic.written_on = "2003-12-12 23:23:00"
topic.save
topic_reloaded = Topic.find(topic.id)
assert_equal("Another New Topic", topic_reloaded.title)
topic_reloaded.title = "Updated topic"
topic_reloaded.save
topic_reloaded_again = Topic.find(topic.id)
assert_equal("Updated topic", topic_reloaded_again.title)
end
def test_update_columns_not_equal_attributes
topic = Topic.new
topic.title = "Still another topic"
topic.save
topic_reloaded = Topic.instantiate(topic.attributes.merge("does_not_exist" => "test"))
topic_reloaded.title = "A New Topic"
assert_nothing_raised { topic_reloaded.save }
end
def test_update_for_record_with_only_primary_key
minimalistic = minimalistics(:first)
assert_nothing_raised { minimalistic.save }
end
def test_update_sti_type
assert_instance_of Reply, topics(:second)
topic = topics(:second).becomes!(Topic)
assert_instance_of Topic, topic
topic.save!
assert_instance_of Topic, Topic.find(topic.id)
end
def test_preserve_original_sti_type
reply = topics(:second)
assert_equal "Reply", reply.type
topic = reply.becomes(Topic)
assert_equal "Reply", reply.type
assert_instance_of Topic, topic
assert_equal "Reply", topic.type
end
def test_update_sti_subclass_type
assert_instance_of Topic, topics(:first)
reply = topics(:first).becomes!(Reply)
assert_instance_of Reply, reply
reply.save!
assert_instance_of Reply, Reply.find(reply.id)
end
def test_update_after_create
klass = Class.new(Topic) do
def self.name; "Topic"; end
after_create do
update_attribute("author_name", "David")
end
end
topic = klass.new
topic.title = "Another New Topic"
topic.save
topic_reloaded = Topic.find(topic.id)
assert_equal("Another New Topic", topic_reloaded.title)
assert_equal("David", topic_reloaded.author_name)
end
def test_update_attribute_does_not_run_sql_if_attribute_is_not_changed
klass = Class.new(Topic) do
def self.name; "Topic"; end
end
topic = klass.create(title: "Another New Topic")
assert_queries(0) do
topic.update_attribute(:title, "Another New Topic")
end
end
def test_update_does_not_run_sql_if_record_has_not_changed
topic = Topic.create(title: "Another New Topic")
assert_queries(0) { topic.update(title: "Another New Topic") }
assert_queries(0) { topic.update_attributes(title: "Another New Topic") }
end
def test_delete
topic = Topic.find(1)
assert_equal topic, topic.delete, "topic.delete did not return self"
assert topic.frozen?, "topic not frozen after delete"
assert_raise(ActiveRecord::RecordNotFound) { Topic.find(topic.id) }
end
def test_delete_doesnt_run_callbacks
Topic.find(1).delete
assert_not_nil Topic.find(2)
end
def test_destroy
topic = Topic.find(1)
assert_equal topic, topic.destroy, "topic.destroy did not return self"
assert topic.frozen?, "topic not frozen after destroy"
assert_raise(ActiveRecord::RecordNotFound) { Topic.find(topic.id) }
end
def test_destroy!
topic = Topic.find(1)
assert_equal topic, topic.destroy!, "topic.destroy! did not return self"
assert topic.frozen?, "topic not frozen after destroy!"
assert_raise(ActiveRecord::RecordNotFound) { Topic.find(topic.id) }
end
def test_record_not_found_exception
assert_raise(ActiveRecord::RecordNotFound) { Topic.find(99999) }
end
def test_update_all
assert_equal Topic.count, Topic.update_all("content = 'bulk updated!'")
assert_equal "bulk updated!", Topic.find(1).content
assert_equal "bulk updated!", Topic.find(2).content
assert_equal Topic.count, Topic.update_all(["content = ?", "bulk updated again!"])
assert_equal "bulk updated again!", Topic.find(1).content
assert_equal "bulk updated again!", Topic.find(2).content
assert_equal Topic.count, Topic.update_all(["content = ?", nil])
assert_nil Topic.find(1).content
end
def test_update_all_with_hash
assert_not_nil Topic.find(1).last_read
assert_equal Topic.count, Topic.update_all(content: "bulk updated with hash!", last_read: nil)
assert_equal "bulk updated with hash!", Topic.find(1).content
assert_equal "bulk updated with hash!", Topic.find(2).content
assert_nil Topic.find(1).last_read
assert_nil Topic.find(2).last_read
end
def test_update_all_with_non_standard_table_name
assert_equal 1, WarehouseThing.where(id: 1).update_all(["value = ?", 0])
assert_equal 0, WarehouseThing.find(1).value
end
def test_delete_new_record
client = Client.new
client.delete
assert client.frozen?
end
def test_delete_record_with_associations
client = Client.find(3)
client.delete
assert client.frozen?
assert_kind_of Firm, client.firm
assert_raise(RuntimeError) { client.name = "something else" }
end
def test_destroy_new_record
client = Client.new
client.destroy
assert client.frozen?
end
def test_destroy_record_with_associations
client = Client.find(3)
client.destroy
assert client.frozen?
assert_kind_of Firm, client.firm
assert_raise(RuntimeError) { client.name = "something else" }
end
def test_update_attribute
assert !Topic.find(1).approved?
Topic.find(1).update_attribute("approved", true)
assert Topic.find(1).approved?
Topic.find(1).update_attribute(:approved, false)
assert !Topic.find(1).approved?
end
def test_update_attribute_for_readonly_attribute
minivan = Minivan.find("m1")
assert_raises(ActiveRecord::ActiveRecordError) { minivan.update_attribute(:color, "black") }
end
def test_update_attribute_with_one_updated
t = Topic.first
t.update_attribute(:title, "super_title")
assert_equal "super_title", t.title
assert !t.changed?, "topic should not have changed"
assert !t.title_changed?, "title should not have changed"
assert_nil t.title_change, "title change should be nil"
t.reload
assert_equal "super_title", t.title
end
def test_update_attribute_for_updated_at_on
developer = Developer.find(1)
prev_month = Time.now.prev_month.change(usec: 0)
developer.update_attribute(:updated_at, prev_month)
assert_equal prev_month, developer.updated_at
developer.update_attribute(:salary, 80001)
assert_not_equal prev_month, developer.updated_at
developer.reload
assert_not_equal prev_month, developer.updated_at
end
def test_update_column
topic = Topic.find(1)
topic.update_column("approved", true)
assert topic.approved?
topic.reload
assert topic.approved?
topic.update_column(:approved, false)
assert !topic.approved?
topic.reload
assert !topic.approved?
end
def test_update_column_should_not_use_setter_method
dev = Developer.find(1)
dev.instance_eval { def salary=(value); write_attribute(:salary, value * 2); end }
dev.update_column(:salary, 80000)
assert_equal 80000, dev.salary
dev.reload
assert_equal 80000, dev.salary
end
def test_update_column_should_raise_exception_if_new_record
topic = Topic.new
assert_raises(ActiveRecord::ActiveRecordError) { topic.update_column("approved", false) }
end
def test_update_column_should_not_leave_the_object_dirty
topic = Topic.find(1)
topic.update_column("content", "--- Have a nice day\n...\n")
topic.reload
topic.update_column(:content, "--- You too\n...\n")
assert_equal [], topic.changed
topic.reload
topic.update_column("content", "--- Have a nice day\n...\n")
assert_equal [], topic.changed
end
def test_update_column_with_model_having_primary_key_other_than_id
minivan = Minivan.find("m1")
new_name = "sebavan"
minivan.update_column(:name, new_name)
assert_equal new_name, minivan.name
end
def test_update_column_for_readonly_attribute
minivan = Minivan.find("m1")
prev_color = minivan.color
assert_raises(ActiveRecord::ActiveRecordError) { minivan.update_column(:color, "black") }
assert_equal prev_color, minivan.color
end
def test_update_column_should_not_modify_updated_at
developer = Developer.find(1)
prev_month = Time.now.prev_month.change(usec: 0)
developer.update_column(:updated_at, prev_month)
assert_equal prev_month, developer.updated_at
developer.update_column(:salary, 80001)
assert_equal prev_month, developer.updated_at
developer.reload
assert_equal prev_month.to_i, developer.updated_at.to_i
end
def test_update_column_with_one_changed_and_one_updated
t = Topic.order("id").limit(1).first
author_name = t.author_name
t.author_name = "John"
t.update_column(:title, "super_title")
assert_equal "John", t.author_name
assert_equal "super_title", t.title
assert t.changed?, "topic should have changed"
assert t.author_name_changed?, "author_name should have changed"
t.reload
assert_equal author_name, t.author_name
assert_equal "super_title", t.title
end
def test_update_column_with_default_scope
developer = DeveloperCalledDavid.first
developer.name = "John"
developer.save!
assert developer.update_column(:name, "Will"), "did not update record due to default scope"
end
def test_update_columns
topic = Topic.find(1)
topic.update_columns("approved" => true, title: "Sebastian Topic")
assert topic.approved?
assert_equal "Sebastian Topic", topic.title
topic.reload
assert topic.approved?
assert_equal "Sebastian Topic", topic.title
end
def test_update_columns_should_not_use_setter_method
dev = Developer.find(1)
dev.instance_eval { def salary=(value); write_attribute(:salary, value * 2); end }
dev.update_columns(salary: 80000)
assert_equal 80000, dev.salary
dev.reload
assert_equal 80000, dev.salary
end
def test_update_columns_should_raise_exception_if_new_record
topic = Topic.new
assert_raises(ActiveRecord::ActiveRecordError) { topic.update_columns(approved: false) }
end
def test_update_columns_should_not_leave_the_object_dirty
topic = Topic.find(1)
topic.update("content" => "--- Have a nice day\n...\n", :author_name => "Jose")
topic.reload
topic.update_columns(content: "--- You too\n...\n", "author_name" => "Sebastian")
assert_equal [], topic.changed
topic.reload
topic.update_columns(content: "--- Have a nice day\n...\n", author_name: "Jose")
assert_equal [], topic.changed
end
def test_update_columns_with_model_having_primary_key_other_than_id
minivan = Minivan.find("m1")
new_name = "sebavan"
minivan.update_columns(name: new_name)
assert_equal new_name, minivan.name
end
def test_update_columns_with_one_readonly_attribute
minivan = Minivan.find("m1")
prev_color = minivan.color
prev_name = minivan.name
assert_raises(ActiveRecord::ActiveRecordError) { minivan.update_columns(name: "My old minivan", color: "black") }
assert_equal prev_color, minivan.color
assert_equal prev_name, minivan.name
minivan.reload
assert_equal prev_color, minivan.color
assert_equal prev_name, minivan.name
end
def test_update_columns_should_not_modify_updated_at
developer = Developer.find(1)
prev_month = Time.now.prev_month.change(usec: 0)
developer.update_columns(updated_at: prev_month)
assert_equal prev_month, developer.updated_at
developer.update_columns(salary: 80000)
assert_equal prev_month, developer.updated_at
assert_equal 80000, developer.salary
developer.reload
assert_equal prev_month.to_i, developer.updated_at.to_i
assert_equal 80000, developer.salary
end
def test_update_columns_with_one_changed_and_one_updated
t = Topic.order("id").limit(1).first
author_name = t.author_name
t.author_name = "John"
t.update_columns(title: "super_title")
assert_equal "John", t.author_name
assert_equal "super_title", t.title
assert t.changed?, "topic should have changed"
assert t.author_name_changed?, "author_name should have changed"
t.reload
assert_equal author_name, t.author_name
assert_equal "super_title", t.title
end
def test_update_columns_changing_id
topic = Topic.find(1)
topic.update_columns(id: 123)
assert_equal 123, topic.id
topic.reload
assert_equal 123, topic.id
end
def test_update_columns_returns_boolean
topic = Topic.find(1)
assert_equal true, topic.update_columns(title: "New title")
end
def test_update_columns_with_default_scope
developer = DeveloperCalledDavid.first
developer.name = "John"
developer.save!
assert developer.update_columns(name: "Will"), "did not update record due to default scope"
end
def test_update
topic = Topic.find(1)
assert !topic.approved?
assert_equal "The First Topic", topic.title
topic.update("approved" => true, "title" => "The First Topic Updated")
topic.reload
assert topic.approved?
assert_equal "The First Topic Updated", topic.title
topic.update(approved: false, title: "The First Topic")
topic.reload
assert !topic.approved?
assert_equal "The First Topic", topic.title
end
def test_update_attributes
topic = Topic.find(1)
assert !topic.approved?
assert_equal "The First Topic", topic.title
topic.update_attributes("approved" => true, "title" => "The First Topic Updated")
topic.reload
assert topic.approved?
assert_equal "The First Topic Updated", topic.title
topic.update_attributes(approved: false, title: "The First Topic")
topic.reload
assert !topic.approved?
assert_equal "The First Topic", topic.title
error = assert_raise(ActiveRecord::RecordNotUnique, ActiveRecord::StatementInvalid) do
topic.update_attributes(id: 3, title: "Hm is it possible?")
end
assert_not_nil error.cause
assert_not_equal "Hm is it possible?", Topic.find(3).title
topic.update_attributes(id: 1234)
assert_nothing_raised { topic.reload }
assert_equal topic.title, Topic.find(1234).title
end
def test_update_attributes_parameters
topic = Topic.find(1)
assert_nothing_raised do
topic.update_attributes({})
end
assert_raises(ArgumentError) do
topic.update_attributes(nil)
end
end
def test_update!
Reply.validates_presence_of(:title)
reply = Reply.find(2)
assert_equal "The Second Topic of the day", reply.title
assert_equal "Have a nice day", reply.content
reply.update!("title" => "The Second Topic of the day updated", "content" => "Have a nice evening")
reply.reload
assert_equal "The Second Topic of the day updated", reply.title
assert_equal "Have a nice evening", reply.content
reply.update!(title: "The Second Topic of the day", content: "Have a nice day")
reply.reload
assert_equal "The Second Topic of the day", reply.title
assert_equal "Have a nice day", reply.content
assert_raise(ActiveRecord::RecordInvalid) { reply.update!(title: nil, content: "Have a nice evening") }
ensure
Reply.clear_validators!
end
def test_update_attributes!
Reply.validates_presence_of(:title)
reply = Reply.find(2)
assert_equal "The Second Topic of the day", reply.title
assert_equal "Have a nice day", reply.content
reply.update_attributes!("title" => "The Second Topic of the day updated", "content" => "Have a nice evening")
reply.reload
assert_equal "The Second Topic of the day updated", reply.title
assert_equal "Have a nice evening", reply.content
reply.update_attributes!(title: "The Second Topic of the day", content: "Have a nice day")
reply.reload
assert_equal "The Second Topic of the day", reply.title
assert_equal "Have a nice day", reply.content
assert_raise(ActiveRecord::RecordInvalid) { reply.update_attributes!(title: nil, content: "Have a nice evening") }
ensure
Reply.clear_validators!
end
def test_destroyed_returns_boolean
developer = Developer.first
assert_equal false, developer.destroyed?
developer.destroy
assert_equal true, developer.destroyed?
developer = Developer.last
assert_equal false, developer.destroyed?
developer.delete
assert_equal true, developer.destroyed?
end
def test_persisted_returns_boolean
developer = Developer.new(name: "Jose")
assert_equal false, developer.persisted?
developer.save!
assert_equal true, developer.persisted?
developer = Developer.first
assert_equal true, developer.persisted?
developer.destroy
assert_equal false, developer.persisted?
developer = Developer.last
assert_equal true, developer.persisted?
developer.delete
assert_equal false, developer.persisted?
end
def test_class_level_destroy
should_be_destroyed_reply = Reply.create("title" => "hello", "content" => "world")
Topic.find(1).replies << should_be_destroyed_reply
Topic.destroy(1)
assert_raise(ActiveRecord::RecordNotFound) { Topic.find(1) }
assert_raise(ActiveRecord::RecordNotFound) { Reply.find(should_be_destroyed_reply.id) }
end
def test_class_level_delete
should_be_destroyed_reply = Reply.create("title" => "hello", "content" => "world")
Topic.find(1).replies << should_be_destroyed_reply
Topic.delete(1)
assert_raise(ActiveRecord::RecordNotFound) { Topic.find(1) }
assert_nothing_raised { Reply.find(should_be_destroyed_reply.id) }
end
def test_create_with_custom_timestamps
custom_datetime = 1.hour.ago.beginning_of_day
%w(created_at created_on updated_at updated_on).each do |attribute|
parrot = LiveParrot.create(:name => "colombian", attribute => custom_datetime)
assert_equal custom_datetime, parrot[attribute]
end
end
def test_persist_inherited_class_with_different_table_name
minimalistic_aircrafts = Class.new(Minimalistic) do
self.table_name = "aircraft"
end
assert_difference "Aircraft.count", 1 do
aircraft = minimalistic_aircrafts.create(name: "Wright Flyer")
aircraft.name = "Wright Glider"
aircraft.save
end
assert_equal "Wright Glider", Aircraft.last.name
end
def test_instantiate_creates_a_new_instance
post = Post.instantiate("title" => "appropriate documentation", "type" => "SpecialPost")
assert_equal "appropriate documentation", post.title
assert_instance_of SpecialPost, post
# body was not initialized
assert_raises ActiveModel::MissingAttributeError do
post.body
end
end
def test_reload_removes_custom_selects
post = Post.select("posts.*, 1 as wibble").last!
assert_equal 1, post[:wibble]
assert_nil post.reload[:wibble]
end
def test_find_via_reload
post = Post.new
assert post.new_record?
post.id = 1
post.reload
assert_equal "Welcome to the weblog", post.title
assert_not post.new_record?
end
def test_reload_via_querycache
ActiveRecord::Base.connection.enable_query_cache!
ActiveRecord::Base.connection.clear_query_cache
assert ActiveRecord::Base.connection.query_cache_enabled, "cache should be on"
parrot = Parrot.create(name: "Shane")
# populate the cache with the SELECT result
found_parrot = Parrot.find(parrot.id)
assert_equal parrot.id, found_parrot.id
# Manually update the 'name' attribute in the DB directly
assert_equal 1, ActiveRecord::Base.connection.query_cache.length
ActiveRecord::Base.uncached do
found_parrot.name = "Mary"
found_parrot.save
end
# Now reload, and verify that it gets the DB version, and not the querycache version
found_parrot.reload
assert_equal "Mary", found_parrot.name
found_parrot = Parrot.find(parrot.id)
assert_equal "Mary", found_parrot.name
ensure
ActiveRecord::Base.connection.disable_query_cache!
end
class SaveTest < ActiveRecord::TestCase
self.use_transactional_tests = false
def test_save_touch_false
widget = Class.new(ActiveRecord::Base) do
connection.create_table :widgets, force: true do |t|
t.string :name
t.timestamps null: false
end
self.table_name = :widgets
end
instance = widget.create!( name: "Bob",
created_at: 1.day.ago,
updated_at: 1.day.ago)
created_at = instance.created_at
updated_at = instance.updated_at
instance.name = "Barb"
instance.save!(touch: false)
assert_equal instance.created_at, created_at
assert_equal instance.updated_at, updated_at
ensure
ActiveRecord::Base.connection.drop_table widget.table_name
widget.reset_column_information
end
end
def test_reset_column_information_resets_children
child = Class.new(Topic)
child.new # force schema to load
ActiveRecord::Base.connection.add_column(:topics, :foo, :string)
Topic.reset_column_information
assert_equal "bar", child.new(foo: :bar).foo
ensure
ActiveRecord::Base.connection.remove_column(:topics, :foo)
Topic.reset_column_information
end
end