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* SQLite3: Make fixture loading to bulk statementsRyuta Kamizono2019-03-171-6/+2
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* Make `truncate_tables` to bulk statementsRyuta Kamizono2019-03-171-1/+1
| | | | | | | | | | | | | | | | | | Before: ``` (16.4ms) TRUNCATE TABLE `author_addresses` (20.5ms) TRUNCATE TABLE `authors` (19.4ms) TRUNCATE TABLE `posts` ``` After: ``` Truncate Tables (19.5ms) TRUNCATE TABLE `author_addresses`; TRUNCATE TABLE `authors`; TRUNCATE TABLE `posts` ```
* Eagerly materialize the fixtures transactionJean Boussier2019-01-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The transaction used to restore fixtures is an implementation detail that should be abstracted away. Idealy a test should behave the same wether or not transactional fixtures are enabled. However since transactions have been made lazy, the fixture transaction started leaking into tests case. e.g. consider the following (oversimplified) test: ```ruby class SQLSubscriber attr_accessor :sql def initialize @sql = [] end def call(*, event) sql << event[:sql] end end subscriber = SQLSubscriber.new ActiveSupport::Notifications.subscribe("sql.active_record", subscriber) User.connection.execute('SELECT 1', 'Generic name') assert_equal ['SELECT 1'], subscriber.sql ``` On Rails 6 it starts to break because the `sql` array will be `['BEGIN', 'SELECT 1']`. Several things are wrong here: - That transaction is not generated by the tested code, so it shouldn't be visible. - The transaction is not even closed yet, which again doesn't reflect the reality.
* Remove deprecated `#insert_fixtures` from the database adaptersRafael Mendonça França2019-01-171-14/+0
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* Share the connection pool when there are multiple handlersEileen Uchitelle2019-01-031-0/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In an application that has a primary and replica database the data inserted on the primary connection will not be able to be read by the replica connection. In a test like this: ``` test "creating a home and then reading it" do home = Home.create!(owner: "eileencodes") ActiveRecord::Base.connected_to(role: :default) do assert_equal 3, Home.count end ActiveRecord::Base.connected_to(role: :readonly) do assert_equal 3, Home.count end end ``` The home inserted in the beginning of the test can't be read by the replica database because when the test is started a transasction is opened byy `setup_fixtures`. That transaction remains open for the remainder of the test until we are done and run `teardown_fixtures`. Because the data isn't actually committed to the database the replica database cannot see the data insertion. I considered a couple ways to fix this. I could have written a database cleaner like class that would allow the data to be committed and then clean up that data afterwards. But database cleaners can make the database slow and the point of the fixtures is to be fast. In GitHub we solve this by sharing the connection pool for the replicas with the primary (writing) connection. This is a bit hacky but it works. Additionally since we define `replica? || preventing_writes?` as the code that blocks writes to the database this will still prevent writing on the replica / readonly connection. So we get all the behavior of multiple connections for the same database without slowing down the database. In this PR the code loops through the handlers. If the handler doesn't match the default handler then it retrieves the connection pool from the default / writing handler and assigns the reading handler's connections to that pool. Then in enlist_fixture_connections it maps all the connections for the default handler because all the connections are now available on that handler so we don't need to loop through them again. The test uses a temporary connection pool so we can test this with sqlite3_mem. This adapter doesn't behave the same as the others and after looking over how the query cache test works I think this is the most correct. The issues comes when calling `connects_to` because that establishes new connections and confuses the sqlite3_mem adapter. I'm not entirely sure why but I wanted to make sure we tested all adapters for this change and I checked that it wasn't the shared connection code that was causing issues - it was the `connects_to` code.
* Enable `Style/RedundantBegin` cop to avoid newly adding redundant begin blockRyuta Kamizono2018-12-211-8/+6
| | | | | | | | | | Currently we sometimes find a redundant begin block in code review (e.g. https://github.com/rails/rails/pull/33604#discussion_r209784205). I'd like to enable `Style/RedundantBegin` cop to avoid that, since rescue/else/ensure are allowed inside do/end blocks in Ruby 2.5 (https://bugs.ruby-lang.org/issues/12906), so we'd probably meets with that situation than before.
* Don't pass unused `connection` to `FixtureSet.new`Ryuta Kamizono2018-11-031-9/+9
| | | | | | | | | | The `@connection` is no longer used since ee5ab22. Originally the `@connection` was useless because it is only used in `timestamp_column_names`, which is only used if `model_class` is given. If `model_class` is given, the `@connection` is always `model_class.connection`.
* Avoid violating key constraints in fixture HABTM associationsJames Le Cuirot2018-10-291-0/+4
| | | | | | | | | When loading fixtures, Ruby 1.9's hash key ordering means that HABTM join table rows are always loaded before the parent table rows, violating foreign key constraints that may be in place. This very simple change ensures that the parent table's key appears first in the hash. Violations may still occur if fixtures are loaded in the wrong order but those instances can be avoided unlike this one.
* Raise an error when loading all fixtures from nil fixture_pathGannon McGibbon2018-09-261-0/+16
| | | | [Gannon McGibbon + Max Albrecht]
* Change the empty block style to have space inside of the blockRafael Mendonça França2018-09-251-1/+1
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* Merge pull request #33391 from utilum/method_call_assertions_instead_of_mochaRyuta Kamizono2018-07-191-4/+4
|\ | | | | Use MethodCallAssertions instead of Mocha#expects
| * Use MethodCallAssertions instead of Mocha#expectsutilum2018-07-191-4/+4
| | | | | | | | | | | | | | | | | | | | Many calls to `Mocha#expects` preceded the introduction of `ActiveSupport::Testing::MethodCallAssertions` in 53f64c0fb, and many are simple to replace with `MethodCallAssertions`. This patch makes all these simple replacements. Step 5 in #33162
* | Fix `insert_fixtures_set` to be restored original connection flagsRyuta Kamizono2018-07-191-5/+80
|/ | | | | | #33363 has two regressions. First one is that `insert_fixtures_set` is failed if flags is an array. Second one is that connection flags are not restored if `set_server_option` is not supported.
* Merge pull request #33363 from ahorek/transaction_bugRafael França2018-07-181-0/+15
|\ | | | | use set_server_option if possible
| * use set_server_option if possiblepavel2018-07-151-0/+15
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* | Replace some more Mocha#stub calls with Minitestutilum2018-07-171-8/+9
| | | | | | | | Missed these in preparing #33337
* | Stub with Minitest instead of Mochautilum2018-07-151-17/+18
|/ | | | Step 4 in #33162
* Fix stubbed methods in test casesbogdanvlviv2018-07-101-2/+2
| | | | | | | | | | Remove returning of `false` value for stubbed `lock_thread=` methods since there aren't any needs in it. Remove unnecessary returning of `true` for stubbed `drop_database` method. Follow up #33309. Related to #33162, #33326.
* Replace shallow mocks with Ruby classesutilum2018-07-101-4/+17
| | | | | | | While preparing this I realised that some stubbed returns values serve no purpose, so this patch drops those as well. Step 3 in #33162
* Fix `CustomCops/AssertNot` to allow it to have failure messageRyuta Kamizono2018-05-131-2/+2
| | | | Follow up of #32605.
* Replace `assert !` with `assert_not`Daniel Colson2018-04-191-6/+6
| | | | | This autocorrects the violations after adding a custom cop in 3305c78dcd.
* Add cop for preferring 'Foo.method' over 'Foo::method'Andrew White2018-02-221-1/+1
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* Add chop removed in 89bcca5Rafael Mendonça França2018-02-161-1/+1
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* Remove usage of strip_heredoc in the framework in favor of <<~Rafael Mendonça França2018-02-161-1/+1
| | | | | Some places we can't remove because Ruby still don't have a method equivalent to strip_heredoc to be called in an already existent string.
* Use assert_empty and assert_not_emptyDaniel Colson2018-01-251-1/+1
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* Use assert_predicate and assert_not_predicateDaniel Colson2018-01-251-5/+5
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* Bring back ability to insert zero value on primary key for fixtures (#31795)Ryuta Kamizono2018-01-261-20/+11
| | | | | | Since #29504, mysql2 adapter lost ability to insert zero value on primary key due to enforce `NO_AUTO_VALUE_ON_ZERO` disabled. That is for using `DEFAULT` on auto increment column, but we can use `NULL` instead in that case.
* Add test case for deprecated `insert_fixtures`Ryuta Kamizono2018-01-261-2/+16
| | | | Since #31422, `insert_fixtures` is deprecated.
* Merge pull request #31422 from Edouard-chin/multistatement-fixturesMatthew Draper2018-01-241-0/+118
|\ | | | | Build a multi-statement query when inserting fixtures
| * Allow a 2 bytes margin:Edouard CHIN2018-01-231-3/+5
| | | | | | | | | | - mysql will add a 2 bytes margin to the statement, so given a `max_allowed_packet` set to 1024 bytes, a 1024 bytes fixtures will no be inserted (mysql will throw an error) - Preventing this by decreasing the max_allowed_packet by 2 bytes when doing the comparison with the actual statement size
| * Build a multi-statement query when inserting fixtures:Edouard CHIN2018-01-221-0/+116
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - The `insert_fixtures` method can be optimized by making a single multi statement query for all fixtures having the same connection instead of doing a single query per table - The previous code was bulk inserting fixtures for a single table, making X query for X fixture files - This patch builds a single **multi statement query** for every tables. Given a set of 3 fixtures (authors, dogs, computers): ```ruby # before %w(authors dogs computers).each do |table| sql = build_sql(table) connection.query(sql) end # after sql = build_sql(authors, dogs, computers) connection.query(sql) ``` - `insert_fixtures` is now deprecated, `insert_fixtures_set` is the new way to go with performance improvement - My tests were done with an app having more than 700 fixtures, the time it takes to insert all of them was around 15s. Using a single multi statement query, it took on average of 8 seconds - In order for a multi statement to be executed, mysql needs to be connected with the `MULTI_STATEMENTS` [flag](https://dev.mysql.com/doc/refman/5.7/en/c-api-multiple-queries.html), which is done before inserting the fixtures by reconnecting to da the database with the flag declared. Reconnecting to the database creates some caveats: 1. We loose all open transactions; Inside the original code, when inserting fixtures, a transaction is open. Multple delete statements are [executed](https://github.com/rails/rails/blob/a681eaf22955734c142609961a6d71746cfa0583/activerecord/lib/active_record/fixtures.rb#L566) and finally the fixtures are inserted. The problem with this patch is that we need to open the transaction only after we reconnect to the DB otherwise reconnecting drops the open transaction which doesn't commit all delete statements and inserting fixtures doesn't work since we duplicated them (Primary key duplicate exception)... - In order to fix this problem, the transaction is now open directly inside the `insert_fixtures` method, right after we reconnect to the db - As an effect, since the transaction is open inside the `insert_fixtures` method, the DELETE statements need to be executed here since the transaction is open later 2. The same problem happens for the `disable_referential_integrity` since we reconnect, the `FOREIGN_KEY_CHECKS` is reset to the original value - Same solution as 1. , the disable_referential_integrity can be called after we reconnect to the transaction 3. When the multi statement query is executed, no other queries can be performed until we paginate over the set of results, otherwise mysql throws a "Commands out of sync" [Ref](https://dev.mysql.com/doc/refman/5.7/en/commands-out-of-sync.html) - Iterating over the set of results until `mysql_client.next_result` is false. [Ref](https://github.com/brianmario/mysql2#multiple-result-sets) - Removed the `active_record.sql "Fixture delete"` notification, the delete statements are now inside the INSERT's one - On mysql the `max_allowed_packet` is looked up: 1. Before executing the multi-statements query, we check the packet length of each statements, if the packet is bigger than the max_allowed_packet config, an `ActiveRecordError` is raised 2. Otherwise we concatenate the current sql statement into the previous and so on until the packet is `< max_allowed_packet`
* | Added a test around `NO_AUTO_VALUE_ON_ZERO`:Edouard CHIN2018-01-171-0/+22
| | | | | | | | | | | | | | | | | | - The mysql `NO_AUTO_VALUE_ON_ZERO` mode should be disabled when inserting fixtures in bulk, this PR adds a test to make sure we don't remove it by mistake - If we live this mode enabled, a statement like this wouldn't work and a `Duplicate entry '0' for key 'PRIMARY'` error will be raised. That's because `DEFAULT` on auto_increment will return 0 ```sql INSERT INTO `aircraft` (`id`, `name`, `wheels_count`) VALUES (DEFAULT, 'first', 2), (DEFAULT, 'second', 3) ```
* | Enable `Layout/LeadingCommentSpace` to not allow cosmetic changes in the futureRyuta Kamizono2017-12-141-1/+1
|/ | | | Follow up of #31432.
* Add `binary` helper method to fixtures.yalab2017-08-121-1/+2
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* Merge remote-tracking branch 'origin/master' into unlock-minitestRafael Mendonça França2017-08-011-0/+2
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| * Use frozen-string-literal in ActiveRecordKir Shatrov2017-07-191-0/+2
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* | Merge branch 'master' into unlock-minitestKasper Timm Hansen2017-07-151-1/+31
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| * Revert "Merge pull request #29540 from kirs/rubocop-frozen-string"Matthew Draper2017-07-021-1/+0
| | | | | | | | | | This reverts commit 3420a14590c0e6915d8b6c242887f74adb4120f9, reversing changes made to afb66a5a598ce4ac74ad84b125a5abf046dcf5aa.
| * Enforce frozen string in RubocopKir Shatrov2017-07-011-0/+1
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| * Use bulk INSERT to insert fixturesKir Shatrov2017-06-201-1/+31
| | | | | | | | | | | | | | | | Improves the performance from O(n) to O(1). Previously it would require 50 queries to insert 50 fixtures. Now it takes only one query. Disabled on sqlite which doesn't support multiple inserts.
* | Merge pull request #29287 from alexcameron89/fix-db-statement-test-48104Matthew Draper2017-06-011-0/+1
|\ \ | | | | | | Fix random minitest error: database_statements_test
| * | Reset primary key sequence in FixturesResetPkSequenceTestsAlex Kitchens2017-05-311-0/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The primary key sequence for each test in FixturesResetPkSequenceTest is reset. The state in some of the FixturesResetPkSequenceTest tests are leaking, causing failurse in others. Using a seed of `48104`, the `FixturesResetPkSequenceTest#test_resets_to_min_pk_with_specified_pk_and_sequence` runs before the `DatabaseStatementsTest` tests, and the tests fail with duplicate primary key errors: ``` Run options: --seed 48104 -n "/^(?:FixturesResetPkSequenceTest#(?:test_resets_to_min_pk_with_specified_pk_and_sequence)|DatabaseStatementsTest#(?:test_create_should_return_the_inserted_id|test_exec_insert|test_insert_should_return_the_inserted_id))$/" .EEE 1) Error: DatabaseStatementsTest#test_exec_insert: ActiveRecord::RecordNotUnique: PG::UniqueViolation: ERROR: duplicate key value violates unique constraint "accounts_pkey" DETAIL: Key (id)=(2) already exists. 2) Error: DatabaseStatementsTest#test_create_should_return_the_inserted_id: ActiveRecord::RecordNotUnique: PG::UniqueViolation: ERROR: duplicate key value violates unique constraint "accounts_pkey" DETAIL: Key (id)=(3) already exists. 3) Error: DatabaseStatementsTest#test_insert_should_return_the_inserted_id: ActiveRecord::RecordNotUnique: PG::UniqueViolation: ERROR: duplicate key value violates unique constraint "accounts_pkey" DETAIL: Key (id)=(4) already exists. ```
* / Ensure fixtures are loaded for FoxyFixturesTestAlex Kitchens2017-05-311-0/+2
|/ | | | | | | Ensure that the fixtures are properly loaded for FoxyFixturesTest When tests are randomized, FoxyFixturesTest often fails due to unloaded fixtures.
* Restore `fixtures :author_addresses`Ryuta Kamizono2017-04-271-1/+1
| | | | | This change reverted in eac6f369 but it is needed for data integrity. See #25328.
* Revert "Merge pull request #27636 from ↵Rafael Mendonça França2017-04-261-1/+1
| | | | | | | | | mtsmfm/disable-referential-integrity-without-superuser-privilege-take-2" This reverts commit c1faca6333abe4b938b98fedc8d1f47b88209ecf, reversing changes made to 8c658a0ecc7f2b5fc015d424baf9edf6f3eb2b0b. See https://github.com/rails/rails/pull/27636#issuecomment-297534129
* Passing in no arguments to the dynamic fixture accessor method returns all ↵Kevin McPhillips2017-04-071-0/+18
| | | | fixtures, not an empty array.
* Use `SET CONSTRAINTS` for `disable_referential_integrity` without superuser ↵Fumiaki MATSUSHIMA2017-03-261-1/+1
| | | | | | | | | | | | | | | privileges (take 2) Re-create https://github.com/rails/rails/pull/21233 eeac6151a5 was reverted (127509c071b4) because it breaks tests. ---------------- ref: 72c1557254 - We must use `authors` fixture with `author_addresses` because of its foreign key constraint. - Tests require PostgreSQL >= 9.4.2 because it had a bug about `ALTER CONSTRAINTS` and fixed in 9.4.2.
* Deprecate `supports_migrations?` on connection adaptersRyuta Kamizono2017-02-271-47/+45
| | | | | | | `supports_migrations?` was added at 4160b518 to determine if schema statements (`create_table`, `drop_table`, etc) are implemented in the adapter. But all tested databases has been supported migrations since a4fc93c3 at least.
* Ensure test threads share a DB connectioneileencodes2017-02-201-0/+6
| | | | | | | | | | | | | | | | | | | | | | | This ensures multiple threads inside a transactional test to see consistent database state. When a system test starts Puma spins up one thread and Capybara spins up another thread. Because of this when tests are run the database cannot see what was inserted into the database on teardown. This is because there are two threads using two different connections. This change uses the statement cache to lock the threads to using a single connection ID instead of each not being able to see each other. This code only runs in the fixture setup and teardown so it does not affect real production databases. When a transaction is opened we set `lock_thread` to `Thread.current` so we can keep track of which connection the thread is using. When we rollback the transaction we unlock the thread and then there will be no left-over data in the database because the transaction will roll back the correct connections. [ Eileen M. Uchitelle, Matthew Draper ]
* `self.` is not needed when calling its own instance methodAkira Matsuda2017-01-051-1/+1
| | | | Actually, private methods cannot be called with `self.`, so it's not just redundant, it's a bad habit in Ruby
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