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winter:test -m system -m backend -m cms — the command CI runs — on an M-series Mac, PHP 8.5, median of three runs. The CI-equivalent row hides node_modules so the asset console tests skip exactly as they do on CI, where the phpUnitTests job installs no Node.
before
after
CI-equivalent
173.8s
28.1s
Local, with node_modules
194s
44.5s
The diff is 81 files and reads much bigger than it is: 71 of them are the same three-line opt-in, so there are ten files of actual change.
Three changes, largest first.
BCRYPT_ROUNDS=4 never reached CI.#1554 set it in the root phpunit.xml, but CI runs winter:test -m <module>, which points PHPUnit at modules/*/phpunit.xml — and those configs carry no <php> block at all, so hashing still ran at production cost there. I verified this independently. WinterTest::execPhpUnit() already passes an explicit env array to the PHPUnit process, so that is where it belongs; it now also covers winter:test -p <plugin>, which plugin configs were never going to inherit from the root file either. The upshot is that the win measured on #1554 was local-only, and wip/1.3 sets it in neither place. Measured on its own: 194s → 127s.
Migrate once per process instead of once per test.PluginTestCase::setUp() ran winter:up on every test — 59.7ms/test, 28.4s of the backend suite — because each test builds a new application and therefore a brand new :memory: database. System\Tests\Concerns\MigratesDatabaseOnce migrates on the first test, holds that PDO so the database survives the rebuild, and wraps each test in a transaction it rolls back afterwards. SQLite rolls DDL back too, so a test that creates its own tables still starts from a clean schema.
It is opt-in rather than the PluginTestCase default on purpose: a plugin test that commits its own transaction, or issues DDL on MySQL where that commits implicitly, would escape the wrapping transaction and fail in a way a third party cannot diagnose. PluginTestCase stays byte-for-byte compatible — the only new seam is an overridable runTestMigrations() — and all 71 core test classes opt in.
flushModelEventListeners() now only visits booted models. Second-largest cost and previously unmeasured: 36.3ms/test, 17.3s of the backend suite. It reflected over the whole class table (2272 classes by the end of a run) and called flushEventListeners() — which does new static — on every model it found, including fixture models from unrelated test files. Only 7.7 models per test have actually booted, and every route to registerModelEvent() boots the model first, so an unbooted model has no listeners to forget. 36.3ms → 3.8ms per test.
Tests
MigratesDatabaseOnceTest (7 tests) pins the trait's contract: the test runs on the process-wide connection inside a transaction, the next test reuses that same connection rather than migrating again, and neither rows nor tables a test adds outlive it. ModelEventListenerFlushTest (2 tests) pins the flush on the surface that matters: a booted model's listeners are gone from the dispatcher afterwards, and the model registers them again on its next construction.
Each was checked by breaking the implementation in turn — dropping the rollback fails five of the seven, always re-migrating fails the connection-reuse test specifically, and making the flush skip booted models fails both flush tests. The original full-class-table algorithm also passes them, which is the point: they pin behaviour, not implementation.
1206 tests green on both vendor/bin/phpunit and the winter:test path, phpcs -nq clean.
Also adds the measured per-base-class costs to AGENTS.md and the trait to modules/system/tests/README.md, so the next person adding a test knows TestCase is 4.3ms, PluginTestCase is 55ms, and PluginTestCase with the trait is 5.8ms — and that a data provider is no cheaper than separate test methods, since PHPUnit runs setUp for every row.
Notes, not proposals
flushModelEventListeners() turns out to be largely redundant. Storm's DatabaseServiceProvider::register() already calls Model::clearBootedModels() and Model::flushEventListeners() on every application boot, and every test boots a new application, so disabling the call entirely leaves the suite green. Removing it is worth another ~5s, but it is public API and the redundancy rests on Storm-side behaviour, so that is your call rather than something I did here.
Parallelism via paratest is worth 3.3x at four processes and 5.9x at twelve on this machine, but is blocked on three concrete things: the tests under modules/system/tests/console/asset/ rename tracked fixture files in place, CodeParser compiles page classes into a shared storage/cms/cache/ tree, and CodeParserTest::testOptionalPhpTags already fails under --order-by=reverse on pristine develop. The first is a correctness bug in its own right — a parallel run left the working tree dirty with modules/system/tests/fixtures/themes/assettest/assets/css/theme.css deleted — and probably deserves its own issue rather than being folded in here.
Summary by CodeRabbit
Documentation
Expanded testing guidance with information on database setup and isolation, test runtimes, test commands, configuration, and CI environment differences.
Tests
Updated many automated tests to share database setup while keeping changes isolated between tests.
Added coverage for model event listener cleanup and re-registration, and for database state across tests using shared or independent connections.
`PluginTestCase::setUp()` rebuilt all 43 tables on every test, because each test builds a new application and therefore a new `:memory:` database. The new `System\Tests\Concerns\MigratesDatabaseOnce` trait migrates on the first test, holds that connection open for the rest of the process, and wraps each test in a transaction that is rolled back afterwards, so a test still starts from the freshly migrated schema with no rows of its own. Rolling back also covers DDL, so a test that creates its own tables still gets a clean schema.
It is opt-in rather than the `PluginTestCase` default: plugin suites that commit their own transactions, reconnect, or issue DDL on MySQL would escape the wrapping transaction, and `PluginTestCase` is public API. Every core test class opts in; `runTestMigrations()` is the single seam they override.
`flushModelEventListeners()` now only visits models that have booted. It reflected over the whole class table and called `flushEventListeners()` — which does `new static` — on every model it found, including fixtures from unrelated test classes. Every route to `registerModelEvent()` boots the model first, so a model that never booted has no listeners to forget.
`winter:test` now passes `BCRYPT_ROUNDS=4` to the PHPUnit process. The root `phpunit.xml` sets it, but CI and `winter:test -p <plugin>` run the per-module and per-plugin configs, which carry no `<php>` block, so hashing still ran at production cost there.
Measured with `winter:test -m system -m backend -m cms` (the command CI runs) on an M-series Mac, PHP 8.5:
- before: 194s (median of 187.5/192.6/195.4/197.5)
- with `BCRYPT_ROUNDS` reaching the module configs: 127s (123.2/132.5)
- after, all three changes: 42s (median of 41.8/42.2/42.6)
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
`MigratesDatabaseOnceTest` pins what the trait promises: the test runs on the process-wide connection inside a transaction, the next test reuses that same connection rather than migrating again, and neither rows nor tables a test adds outlive it. Verified by breaking each half in turn — dropping the rollback fails five of the seven, and always re-migrating fails the reuse test.
`ModelEventListenerFlushTest` pins `flushModelEventListeners()` on the surface that matters: a booted model's listeners are gone from the dispatcher afterwards, and the model registers them again on its next construction. Both fail if the flush skips a booted model.
Worth knowing for anyone revisiting that method: it is largely redundant already. Storm's `DatabaseServiceProvider::register()` calls `Model::clearBootedModels()` and `Model::flushEventListeners()`, and every test builds a new application, so the registries are cleared again before the next test runs either way.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
The suite's cost is setup, not assertions, and the numbers are not obvious: an empty test is 4.3ms on `TestCase`, 55ms on `PluginTestCase`, and 5.8ms on `PluginTestCase` with `MigratesDatabaseOnce`. A data provider is no cheaper than separate test methods, because PHPUnit runs `setUp` for every row — 20 provider rows and 20 methods both cost 1.19s on `PluginTestCase`, against 0.12s for one method asserting all 20 cases.
Also records the two traps in measuring: `BCRYPT_ROUNDS` only reaches the per-module configs through `winter:test`, and the asset console tests skip on CI (no Node there) while costing ~24s locally, so a local run and a CI run are not comparing the same work.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
The changes add MigratesDatabaseOnce, which reuses a database PDO connection, wraps each test in a transaction, and rolls it back during teardown. Backend, CMS, and system tests adopt the trait. PluginTestCase now delegates migration setup to an overridable method and changes how it selects models for listener flushing. New tests cover transaction reuse and cleanup, along with listener removal and restoration. Test documentation adds setup and timing guidance, and PHPUnit subprocesses receive BCRYPT_ROUNDS=4.
wintercms/winter#1554: Sets the same BCRYPT_ROUNDS=4 value for the PHPUnit test environment.
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The title "Make the PHP test suite 6x faster on CI" matches the main objective of the PR. The objectives describe three changes aimed at reducing PHP test suite runtime: passing BCRYPT_ROUNDS=4 throug…
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The title "Make the PHP test suite 6x faster on CI" matches the main objective of the PR. The objectives describe three changes aimed at reducing PHP test suite runtime: passing BCRYPT_ROUNDS=4 through winter:test, adding the opt-in MigratesDatabaseOnce trait across test classes, and limiting flushModelEventListeners() to booted models. The title is specific, concise, and conveys the primary change from the developer's perspective. The 6x figure reflects the author's reported CI-equivalent median reduction from 173.8s to 27.1s, which is about 6.4x.
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Actionable comments posted: 2
Fix comments: Fix CodeRabbit comments on this PR
Prompt to fix all issues
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Inline comments:
Review comments at
@modules/backend/tests/behaviors/ListControllerSelectionTest.php:
- Around line 117-118: Remove the MigratesDatabaseOnce import and trait use from
ListControllerSelectionTest; its ListSelectionFixture::migrateUp() creates MySQL
DDL after the trait begins a transaction, so fixture writes and deletes are not
protected by rollback.
Review comments at @modules/system/tests/concerns/MigratesDatabaseOnceTest.php:
- Around line 38-42: Update testTheTestAfterThatReusesTheSameConnection so it
establishes both test lifecycles itself before comparing PDO instances, or move
the assertion to a harness that controls both lifecycles; do not rely on
static::$firstSeenPdo being initialized by another test.
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…rait boundary
Committing the wrapping transaction, disconnecting, or issuing DDL on a driver that commits implicitly left the shared database dirty for every test that followed, and said nothing: Laravel's `rollBack()` returns silently once the transaction level is gone, so the test that caused it passed and some later test failed instead, reading a row it never wrote. `assertWrappingTransactionSurvived()` now checks both the connection's transaction level and whether its PDO is still in a transaction, so an explicit commit and MySQL's implicit DDL commit are both caught, blames the class that did it, and drops the shared connection so the next test migrates a clean database rather than inheriting the mess. That turns the documented footgun into an enforced one.
The reuse test no longer depends on a sibling having run. It failed on its own, because the static it read was only populated by the test before it — a test that fails in isolation while the code works is a defect, and this suite has enough order dependence already. It now takes the previous test's PDO through `@depends`, as do the two rollback tests that were passing vacuously when selected alone. PHPUnit enforces the order and skips instead of failing when only one of a pair is selected.
`SharedConnectionStep1TraitTest`, `SharedConnectionStep2WithoutTraitTest` and `SharedConnectionStep3TraitAgainTest` pin the invariant none of the existing tests could see, since all of them sit inside one trait-using class: a class that does not use the trait gets a migrated database of its own, is not polluted by the trait tests around it, and does not pollute the connection they share. Steps 2 and 3 declare `@depends` on the step before, so the order is enforced rather than resting on file discovery.
Each case was checked by breaking the implementation: dropping the rollback errors six of the eleven, always re-migrating fails only the reuse test, disabling the guard fails only the guard's test, and adding the trait to step 2 fails only step 2.
Both notes told the reader to work out in advance whether a test commits, reconnects or issues DDL on an implicit-commit driver. The trait now checks that for them and names the class responsible, so the advice is to add it and let it tell you. The README also points at `config/testing/database.php` as the reason this matters, since that is the supported way to move a plugin suite onto MySQL.
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winter:test -m system -m backend -m cms— the command CI runs — on an M-series Mac, PHP 8.5, median of three runs. The CI-equivalent row hidesnode_modulesso the asset console tests skip exactly as they do on CI, where thephpUnitTestsjob installs no Node.node_modulesThe diff is 81 files and reads much bigger than it is: 71 of them are the same three-line opt-in, so there are ten files of actual change.
Three changes, largest first.
BCRYPT_ROUNDS=4never reached CI. #1554 set it in the rootphpunit.xml, but CI runswinter:test -m <module>, which points PHPUnit atmodules/*/phpunit.xml— and those configs carry no<php>block at all, so hashing still ran at production cost there. I verified this independently.WinterTest::execPhpUnit()already passes an explicit env array to the PHPUnit process, so that is where it belongs; it now also coverswinter:test -p <plugin>, which plugin configs were never going to inherit from the root file either. The upshot is that the win measured on #1554 was local-only, andwip/1.3sets it in neither place. Measured on its own: 194s → 127s.Migrate once per process instead of once per test.
PluginTestCase::setUp()ranwinter:upon every test — 59.7ms/test, 28.4s of the backend suite — because each test builds a new application and therefore a brand new:memory:database.System\Tests\Concerns\MigratesDatabaseOncemigrates on the first test, holds that PDO so the database survives the rebuild, and wraps each test in a transaction it rolls back afterwards. SQLite rolls DDL back too, so a test that creates its own tables still starts from a clean schema.It is opt-in rather than the
PluginTestCasedefault on purpose: a plugin test that commits its own transaction, or issues DDL on MySQL where that commits implicitly, would escape the wrapping transaction and fail in a way a third party cannot diagnose.PluginTestCasestays byte-for-byte compatible — the only new seam is an overridablerunTestMigrations()— and all 71 core test classes opt in.flushModelEventListeners()now only visits booted models. Second-largest cost and previously unmeasured: 36.3ms/test, 17.3s of the backend suite. It reflected over the whole class table (2272 classes by the end of a run) and calledflushEventListeners()— which doesnew static— on every model it found, including fixture models from unrelated test files. Only 7.7 models per test have actually booted, and every route toregisterModelEvent()boots the model first, so an unbooted model has no listeners to forget. 36.3ms → 3.8ms per test.Tests
MigratesDatabaseOnceTest(7 tests) pins the trait's contract: the test runs on the process-wide connection inside a transaction, the next test reuses that same connection rather than migrating again, and neither rows nor tables a test adds outlive it.ModelEventListenerFlushTest(2 tests) pins the flush on the surface that matters: a booted model's listeners are gone from the dispatcher afterwards, and the model registers them again on its next construction.Each was checked by breaking the implementation in turn — dropping the rollback fails five of the seven, always re-migrating fails the connection-reuse test specifically, and making the flush skip booted models fails both flush tests. The original full-class-table algorithm also passes them, which is the point: they pin behaviour, not implementation.
1206 tests green on both
vendor/bin/phpunitand thewinter:testpath,phpcs -nqclean.Also adds the measured per-base-class costs to
AGENTS.mdand the trait tomodules/system/tests/README.md, so the next person adding a test knowsTestCaseis 4.3ms,PluginTestCaseis 55ms, andPluginTestCasewith the trait is 5.8ms — and that a data provider is no cheaper than separate test methods, since PHPUnit runssetUpfor every row.Notes, not proposals
flushModelEventListeners()turns out to be largely redundant. Storm'sDatabaseServiceProvider::register()already callsModel::clearBootedModels()andModel::flushEventListeners()on every application boot, and every test boots a new application, so disabling the call entirely leaves the suite green. Removing it is worth another ~5s, but it is public API and the redundancy rests on Storm-side behaviour, so that is your call rather than something I did here.Parallelism via paratest is worth 3.3x at four processes and 5.9x at twelve on this machine, but is blocked on three concrete things: the tests under
modules/system/tests/console/asset/rename tracked fixture files in place,CodeParsercompiles page classes into a sharedstorage/cms/cache/tree, andCodeParserTest::testOptionalPhpTagsalready fails under--order-by=reverseon pristine develop. The first is a correctness bug in its own right — a parallel run left the working tree dirty withmodules/system/tests/fixtures/themes/assettest/assets/css/theme.cssdeleted — and probably deserves its own issue rather than being folded in here.Summary by CodeRabbit