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phab/src/infrastructure/testing/PhabricatorTestCase.php
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PhabricatorTestCase.php
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<?php
/*
* Copyright 2012 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
abstract class PhabricatorTestCase extends ArcanistPhutilTestCase {
/**
* If true, put Lisk in process-isolated mode for the duration of the tests so
* that it will establish only isolated, side-effect-free database
* connections. Defaults to true.
*
* NOTE: You should disable this only in rare circumstances. Unit tests should
* not rely on external resources like databases, and should not produce
* side effects.
*/
const PHABRICATOR_TESTCONFIG_ISOLATE_LISK = 'isolate-lisk';
/**
* If true, build storage fixtures before running tests, and connect to them
* during test execution. This will impose a performance penalty on test
* execution (currently, it takes roughly one second to build the fixture)
* but allows you to perform tests which require data to be read from storage
* after writes. The fixture is shared across all test cases in this process.
* Defaults to false.
*
* NOTE: All connections to fixture storage open transactions when established
* and roll them back when tests complete. Each test must independently
* write data it relies on; data will not persist across tests.
*
* NOTE: Enabling this implies disabling process isolation.
*/
const PHABRICATOR_TESTCONFIG_BUILD_STORAGE_FIXTURES = 'storage-fixtures';
private $configuration;
private $env;
private static $storageFixtureReferences = 0;
private static $storageFixture;
protected function getPhabricatorTestCaseConfiguration() {
return array();
}
private function getComputedConfiguration() {
$config = $this->getPhabricatorTestCaseConfiguration() + array(
self::PHABRICATOR_TESTCONFIG_ISOLATE_LISK => true,
self::PHABRICATOR_TESTCONFIG_BUILD_STORAGE_FIXTURES => false,
);
if ($config[self::PHABRICATOR_TESTCONFIG_BUILD_STORAGE_FIXTURES]) {
// Fixtures don't make sense with process isolation.
$config[self::PHABRICATOR_TESTCONFIG_ISOLATE_LISK] = false;
}
return $config;
}
protected function willRunTests() {
$root = dirname(phutil_get_library_root('phabricator'));
require_once $root.'/scripts/__init_script__.php';
$config = $this->getComputedConfiguration();
if ($config[self::PHABRICATOR_TESTCONFIG_ISOLATE_LISK]) {
LiskDAO::beginIsolateAllLiskEffectsToCurrentProcess();
}
if ($config[self::PHABRICATOR_TESTCONFIG_BUILD_STORAGE_FIXTURES]) {
++self::$storageFixtureReferences;
if (!self::$storageFixture) {
self::$storageFixture = $this->newStorageFixture();
}
}
$this->env = PhabricatorEnv::beginScopedEnv();
}
protected function didRunTests() {
$config = $this->getComputedConfiguration();
if ($config[self::PHABRICATOR_TESTCONFIG_ISOLATE_LISK]) {
LiskDAO::endIsolateAllLiskEffectsToCurrentProcess();
}
if (self::$storageFixture) {
self::$storageFixtureReferences--;
if (!self::$storageFixtureReferences) {
self::$storageFixture = null;
}
}
try {
unset($this->env);
} catch (Exception $ex) {
throw new Exception(
"Some test called PhabricatorEnv::beginScopedEnv(), but is still ".
"holding a reference to the scoped environment!");
}
}
protected function willRunOneTest($test) {
$config = $this->getComputedConfiguration();
if ($config[self::PHABRICATOR_TESTCONFIG_BUILD_STORAGE_FIXTURES]) {
LiskDAO::beginIsolateAllLiskEffectsToTransactions();
}
}
protected function didRunOneTest($test) {
$config = $this->getComputedConfiguration();
if ($config[self::PHABRICATOR_TESTCONFIG_BUILD_STORAGE_FIXTURES]) {
LiskDAO::endIsolateAllLiskEffectsToTransactions();
}
}
protected function newStorageFixture() {
$bytes = Filesystem::readRandomCharacters(24);
$name = 'phabricator_unittest_'.$bytes;
return new PhabricatorStorageFixtureScopeGuard($name);
}
}
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