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TestSuiteSorterTest.php
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TestSuiteSorterTest.php
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<?php
/*
* This file is part of PHPUnit.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace PHPUnit\Runner;
use PHPUnit\Framework\TestCase;
use PHPUnit\Framework\TestSuite;
/**
* @group test-reorder
*/
class TestSuiteSorterTest extends TestCase
{
/**
* Constants to improve clarity of @dataprovider
*/
private const IGNORE_DEPENDENCIES = false;
private const RESOLVE_DEPENDENCIES = true;
public function testThrowsExceptionWhenUsingInvalidOrderOption(): void
{
$suite = new TestSuite;
$suite->addTestSuite(\MultiDependencyTest::class);
$sorter = new TestSuiteSorter();
$this->expectException(Exception::class);
$this->expectExceptionMessage('$order must be one of TestSuiteSorter::ORDER_DEFAULT, TestSuiteSorter::ORDER_REVERSED, or TestSuiteSorter::ORDER_RANDOMIZED, or TestSuiteSorter::ORDER_DURATION');
$sorter->reorderTestsInSuite($suite, -1, false, TestSuiteSorter::ORDER_DEFAULT);
}
public function testThrowsExceptionWhenUsingInvalidOrderDefectsOption(): void
{
$suite = new TestSuite;
$suite->addTestSuite(\MultiDependencyTest::class);
$sorter = new TestSuiteSorter();
$this->expectException(Exception::class);
$this->expectExceptionMessage('$orderDefects must be one of TestSuiteSorter::ORDER_DEFAULT, TestSuiteSorter::ORDER_DEFECTS_FIRST');
$sorter->reorderTestsInSuite($suite, TestSuiteSorter::ORDER_DEFAULT, false, -1);
}
/**
* @dataProvider suiteSorterOptionPermutationsProvider
*/
public function testShouldNotAffectEmptyTestSuite(int $order, bool $resolveDependencies, int $orderDefects): void
{
$sorter = new TestSuiteSorter;
$suite = new TestSuite;
$this->assertSame([], $suite->tests());
$sorter->reorderTestsInSuite($suite, $order, $resolveDependencies, $orderDefects);
$this->assertSame([], $suite->tests());
}
/**
* @dataProvider commonSorterOptionsProvider
*/
public function testBasicExecutionOrderOptions(int $order, bool $resolveDependencies, array $expected): void
{
$suite = new TestSuite;
$suite->addTestSuite(\MultiDependencyTest::class);
$sorter = new TestSuiteSorter();
$sorter->reorderTestsInSuite($suite, $order, $resolveDependencies, TestSuiteSorter::ORDER_DEFAULT);
$this->assertSame($expected, $this->getTestExecutionOrder($suite));
}
public function testCanSetRandomizationWithASeed(): void
{
$suite = new TestSuite;
$suite->addTestSuite(\MultiDependencyTest::class);
$sorter = new TestSuiteSorter();
\mt_srand(54321);
$sorter->reorderTestsInSuite($suite, TestSuiteSorter::ORDER_RANDOMIZED, false, TestSuiteSorter::ORDER_DEFAULT);
$this->assertSame(['testTwo', 'testFour', 'testFive', 'testThree', 'testOne'], $this->getTestExecutionOrder($suite));
}
public function testCanSetRandomizationWithASeedAndResolveDependencies(): void
{
$suite = new TestSuite;
$suite->addTestSuite(\MultiDependencyTest::class);
$sorter = new TestSuiteSorter();
\mt_srand(54321);
$sorter->reorderTestsInSuite($suite, TestSuiteSorter::ORDER_RANDOMIZED, true, TestSuiteSorter::ORDER_DEFAULT);
$this->assertSame(['testTwo', 'testFive', 'testOne', 'testThree', 'testFour'], $this->getTestExecutionOrder($suite));
}
/**
* @dataProvider orderDurationWithoutCacheProvider
*/
public function testOrderDurationWithoutCache(bool $resolveDependencies, array $expected): void
{
$suite = new TestSuite;
$suite->addTestSuite(\MultiDependencyTest::class);
$sorter = new TestSuiteSorter();
$sorter->reorderTestsInSuite(
$suite,
TestSuiteSorter::ORDER_DURATION,
$resolveDependencies,
TestSuiteSorter::ORDER_DEFAULT
);
$this->assertSame($expected, $this->getTestExecutionOrder($suite));
}
public function orderDurationWithoutCacheProvider(): array
{
return [
'dependency-ignore' => [
self::IGNORE_DEPENDENCIES,
[
'testOne',
'testTwo',
'testThree',
'testFour',
'testFive',
],
],
'dependency-resolve' => [
self::RESOLVE_DEPENDENCIES,
[
'testOne',
'testTwo',
'testThree',
'testFour',
'testFive',
],
],
];
}
/**
* @dataProvider orderDurationWithCacheProvider
*/
public function testOrderDurationWithCache(bool $resolveDependencies, array $testTimes, array $expected): void
{
$suite = new TestSuite;
$suite->addTestSuite(\MultiDependencyTest::class);
$cache = new TestResultCache();
foreach ($testTimes as $testName => $time) {
$cache->setTime($testName, $time);
}
$sorter = new TestSuiteSorter($cache);
$sorter->reorderTestsInSuite(
$suite,
TestSuiteSorter::ORDER_DURATION,
$resolveDependencies,
TestSuiteSorter::ORDER_DEFAULT
);
$this->assertSame($expected, $this->getTestExecutionOrder($suite));
}
public function orderDurationWithCacheProvider(): array
{
return [
'duration-same-dependency-ignore' => [
self::IGNORE_DEPENDENCIES,
[
'testOne' => 1,
'testTwo' => 1,
'testThree' => 1,
'testFour' => 1,
'testFive' => 1,
],
[
'testOne',
'testTwo',
'testThree',
'testFour',
'testFive',
],
],
'duration-same-dependency-resolve' => [
self::RESOLVE_DEPENDENCIES,
[
'testOne' => 1,
'testTwo' => 1,
'testThree' => 1,
'testFour' => 1,
'testFive' => 1,
],
[
'testOne',
'testTwo',
'testThree',
'testFour',
'testFive',
],
],
'duration-different-dependency-ignore' => [
self::IGNORE_DEPENDENCIES,
[
'testOne' => 5,
'testTwo' => 3,
'testThree' => 4,
'testFour' => 1,
'testFive' => 2,
],
[
'testFour',
'testFive',
'testTwo',
'testThree',
'testOne',
],
],
'duration-different-dependency-resolve' => [
self::RESOLVE_DEPENDENCIES,
[
'testOne' => 5,
'testTwo' => 3,
'testThree' => 4,
'testFour' => 1,
'testFive' => 2,
],
[
'testFive',
'testTwo',
'testOne',
'testThree',
'testFour',
],
],
];
}
/**
* @dataProvider defectsSorterOptionsProvider
*/
public function testSuiteSorterDefectsOptions(int $order, bool $resolveDependencies, array $runState, array $expected): void
{
$suite = new TestSuite;
$suite->addTestSuite(\MultiDependencyTest::class);
$cache = new TestResultCache();
foreach ($runState as $testName => $data) {
$cache->setState($testName, $data['state']);
$cache->setTime($testName, $data['time']);
}
$sorter = new TestSuiteSorter($cache);
$sorter->reorderTestsInSuite($suite, $order, $resolveDependencies, TestSuiteSorter::ORDER_DEFECTS_FIRST);
$this->assertSame($expected, $this->getTestExecutionOrder($suite));
}
/**
* A @dataprovider for basic execution reordering options based on MultiDependencyTest
* This class has the following relevant properties:
* - it has five tests 'testOne' ... 'testFive'
* - 'testThree' @depends on both 'testOne' and 'testTwo'
* - 'testFour' @depends on 'MultiDependencyTest::testThree' to test FQN @depends
* - 'testFive' has no dependencies
*/
public function commonSorterOptionsProvider(): array
{
return [
'default' => [
TestSuiteSorter::ORDER_DEFAULT,
self::IGNORE_DEPENDENCIES,
['testOne', 'testTwo', 'testThree', 'testFour', 'testFive'], ],
// Activating dependency resolution should have no effect under normal circumstances
'resolve default' => [
TestSuiteSorter::ORDER_DEFAULT,
self::IGNORE_DEPENDENCIES,
['testOne', 'testTwo', 'testThree', 'testFour', 'testFive'], ],
// Reversing without checks should give a simple reverse order
'reverse' => [
TestSuiteSorter::ORDER_REVERSED,
self::IGNORE_DEPENDENCIES,
['testFive', 'testFour', 'testThree', 'testTwo', 'testOne'], ],
// Reversing with resolution still allows testFive to move to front, testTwo before testOne
'resolve reverse' => [
TestSuiteSorter::ORDER_REVERSED,
self::RESOLVE_DEPENDENCIES,
['testFive', 'testTwo', 'testOne', 'testThree', 'testFour'], ],
];
}
/**
* A @dataprovider for testing defects execution reordering options based on MultiDependencyTest
* This class has the following relevant properties:
* - it has five tests 'testOne' ... 'testFive'
* - 'testThree' @depends on both 'testOne' and 'testTwo'
* - 'testFour' @depends on 'MultiDependencyTest::testThree' to test FQN @depends
* - 'testFive' has no dependencies
*/
public function defectsSorterOptionsProvider(): array
{
return [
// The most simple situation should work as normal
'default, no defects' => [
TestSuiteSorter::ORDER_DEFAULT,
self::IGNORE_DEPENDENCIES,
[
'testOne' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testTwo' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testThree' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testFour' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testFive' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
],
['testOne', 'testTwo', 'testThree', 'testFour', 'testFive'], ],
// Running with an empty cache should not spook the TestSuiteSorter
'default, empty result cache' => [
TestSuiteSorter::ORDER_DEFAULT,
self::IGNORE_DEPENDENCIES,
[
// empty result cache
],
['testOne', 'testTwo', 'testThree', 'testFour', 'testFive'], ],
// testFive is independent and can be moved to the front
'default, testFive skipped' => [
TestSuiteSorter::ORDER_DEFAULT,
self::IGNORE_DEPENDENCIES,
[
'testOne' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testTwo' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testThree' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testFour' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testFive' => ['state' => BaseTestRunner::STATUS_SKIPPED, 'time' => 1],
],
['testFive', 'testOne', 'testTwo', 'testThree', 'testFour'], ],
// Defects in testFive and testTwo, but the faster testFive should be run first
'default, testTwo testFive skipped' => [
TestSuiteSorter::ORDER_DEFAULT,
self::IGNORE_DEPENDENCIES,
[
'testOne' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testTwo' => ['state' => BaseTestRunner::STATUS_SKIPPED, 'time' => 1],
'testThree' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testFour' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testFive' => ['state' => BaseTestRunner::STATUS_SKIPPED, 'time' => 0],
],
['testFive', 'testTwo', 'testOne', 'testThree', 'testFour'], ],
// Skipping testThree will move it to the front when ignoring dependencies
'default, testThree skipped' => [
TestSuiteSorter::ORDER_DEFAULT,
self::IGNORE_DEPENDENCIES,
[
'testOne' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testTwo' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testThree' => ['state' => BaseTestRunner::STATUS_SKIPPED, 'time' => 1],
'testFour' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testFive' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
],
['testThree', 'testOne', 'testTwo', 'testFour', 'testFive'], ],
// Skipping testThree will move it to the front but behind its dependencies
'default resolve, testThree skipped' => [
TestSuiteSorter::ORDER_DEFAULT,
self::RESOLVE_DEPENDENCIES,
[
'testOne' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testTwo' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testThree' => ['state' => BaseTestRunner::STATUS_SKIPPED, 'time' => 1],
'testFour' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testFive' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
],
['testOne', 'testTwo', 'testThree', 'testFour', 'testFive'], ],
// Skipping testThree will move it to the front and keep the others reversed
'reverse, testThree skipped' => [
TestSuiteSorter::ORDER_REVERSED,
self::IGNORE_DEPENDENCIES,
[
'testOne' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testTwo' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testThree' => ['state' => BaseTestRunner::STATUS_SKIPPED, 'time' => 1],
'testFour' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testFive' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
],
['testThree', 'testFive', 'testFour', 'testTwo', 'testOne'], ],
// Demonstrate a limit of the dependency resolver: after sorting defects to the front,
// the resolver will mark testFive done before testThree because of dependencies
'default resolve, testThree skipped, testFive fast' => [
TestSuiteSorter::ORDER_DEFAULT,
self::RESOLVE_DEPENDENCIES,
[
'testOne' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testTwo' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testThree' => ['state' => BaseTestRunner::STATUS_SKIPPED, 'time' => 0],
'testFour' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testFive' => ['state' => BaseTestRunner::STATUS_SKIPPED, 'time' => 1],
],
['testFive', 'testOne', 'testTwo', 'testThree', 'testFour'], ],
// Torture test
// - incomplete TestResultCache
// - skipped testThree: will move it to the front as far as possible
// - testOne and testTwo are required before testThree, but can be reversed locally
// - testFive is independent will remain reversed up front
'reverse resolve, testThree skipped' => [
TestSuiteSorter::ORDER_REVERSED,
self::RESOLVE_DEPENDENCIES,
[
'testOne' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testTwo' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testThree' => ['state' => BaseTestRunner::STATUS_SKIPPED, 'time' => 1],
],
['testFive', 'testTwo', 'testOne', 'testThree', 'testFour'], ],
// Make sure the dependency resolver is not confused by failing tests.
// Scenario: Four has a @depends on Three and fails. Result: Three is still run first
// testFive also fails but can be moved around freely and will be up front.
'depends first, then defects' => [
TestSuiteSorter::ORDER_DEFAULT,
self::RESOLVE_DEPENDENCIES,
[
'testOne' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testTwo' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testThree' => ['state' => BaseTestRunner::STATUS_PASSED, 'time' => 1],
'testFour' => ['state' => BaseTestRunner::STATUS_FAILURE, 'time' => 1],
'testFive' => ['state' => BaseTestRunner::STATUS_FAILURE, 'time' => 1],
],
['testFive', 'testOne', 'testTwo', 'testThree', 'testFour'], ],
];
}
/**
* @see https://github.com/lstrojny/phpunit-clever-and-smart/issues/38
*/
public function testCanHandleSuiteWithEmptyTestCase(): void
{
$suite = new TestSuite;
$suite->addTestSuite(\EmptyTestCaseTest::class);
$sorter = new TestSuiteSorter();
$sorter->reorderTestsInSuite($suite, TestSuiteSorter::ORDER_DEFAULT, false, TestSuiteSorter::ORDER_DEFAULT);
$this->assertSame(\EmptyTestCaseTest::class, $suite->tests()[0]->getName());
$this->assertSame('No tests found in class "EmptyTestCaseTest".', $suite->tests()[0]->tests()[0]->getMessage());
}
public function suiteSorterOptionPermutationsProvider()
{
$orderValues = [TestSuiteSorter::ORDER_DEFAULT, TestSuiteSorter::ORDER_REVERSED, TestSuiteSorter::ORDER_RANDOMIZED];
$resolveValues = [false, true];
$orderDefectsValues = [TestSuiteSorter::ORDER_DEFAULT, TestSuiteSorter::ORDER_DEFECTS_FIRST];
$data = [];
foreach ($orderValues as $order) {
foreach ($resolveValues as $resolve) {
foreach ($orderDefectsValues as $orderDefects) {
$data[] = [$order, $resolve, $orderDefects];
}
}
}
return $data;
}
private function getTestExecutionOrder(TestSuite $suite): array
{
return \array_map(function ($test) {
return $test->getName();
}, $suite->tests()[0]->tests());
}
}