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composer/tests/Composer/Test/DependencyResolver/SolverTest.php

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PHP

<?php declare(strict_types=1);
/*
* This file is part of Composer.
*
* (c) Nils Adermann <naderman@naderman.de>
* Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Composer\Test\DependencyResolver;
use Composer\IO\NullIO;
use Composer\Repository\ArrayRepository;
use Composer\Repository\LockArrayRepository;
use Composer\DependencyResolver\DefaultPolicy;
use Composer\DependencyResolver\Operation\InstallOperation;
use Composer\DependencyResolver\Operation\MarkAliasInstalledOperation;
use Composer\DependencyResolver\Operation\MarkAliasUninstalledOperation;
use Composer\DependencyResolver\Operation\UninstallOperation;
use Composer\DependencyResolver\Operation\UpdateOperation;
use Composer\DependencyResolver\Request;
use Composer\DependencyResolver\Solver;
use Composer\DependencyResolver\SolverProblemsException;
use Composer\Package\PackageInterface;
use Composer\Package\Link;
use Composer\Repository\RepositorySet;
use Composer\Test\TestCase;
use Composer\Semver\Constraint\MultiConstraint;
use Composer\Semver\Constraint\MatchAllConstraint;
use Composer\DependencyResolver\Pool;
class SolverTest extends TestCase
{
/** @var RepositorySet */
protected $repoSet;
/** @var ArrayRepository */
protected $repo;
/** @var LockArrayRepository */
protected $repoLocked;
/** @var Request */
protected $request;
/** @var DefaultPolicy */
protected $policy;
/** @var Solver|null */
protected $solver;
/** @var Pool */
protected $pool;
public function setUp(): void
{
$this->repoSet = new RepositorySet();
$this->repo = new ArrayRepository;
$this->repoLocked = new LockArrayRepository;
$this->request = new Request($this->repoLocked);
$this->policy = new DefaultPolicy;
}
public function testSolverInstallSingle(): void
{
$this->repo->addPackage($packageA = self::getPackage('A', '1.0'));
$this->reposComplete();
$this->request->requireName('A');
$this->checkSolverResult([
['job' => 'install', 'package' => $packageA],
]);
}
public function testSolverRemoveIfNotRequested(): void
{
$this->repoLocked->addPackage($packageA = self::getPackage('A', '1.0'));
$this->reposComplete();
$this->checkSolverResult([
['job' => 'remove', 'package' => $packageA],
]);
}
public function testInstallNonExistingPackageFails(): void
{
$this->repo->addPackage(self::getPackage('A', '1.0'));
$this->reposComplete();
$this->request->requireName('B', self::getVersionConstraint('==', '1'));
$this->createSolver();
try {
$transaction = $this->solver->solve($this->request);
$this->fail('Unsolvable conflict did not result in exception.');
} catch (SolverProblemsException $e) {
$problems = $e->getProblems();
$this->assertCount(1, $problems);
$this->assertEquals(2, $e->getCode());
$this->assertEquals("\n - Root composer.json requires b, it could not be found in any version, there may be a typo in the package name.", $problems[0]->getPrettyString($this->repoSet, $this->request, $this->pool, false));
}
}
public function testSolverInstallSamePackageFromDifferentRepositories(): void
{
$repo1 = new ArrayRepository;
$repo2 = new ArrayRepository;
$repo1->addPackage($foo1 = self::getPackage('foo', '1'));
$repo2->addPackage($foo2 = self::getPackage('foo', '1'));
$this->repoSet->addRepository($repo1);
$this->repoSet->addRepository($repo2);
$this->request->requireName('foo');
$this->checkSolverResult([
['job' => 'install', 'package' => $foo1],
]);
}
public function testSolverInstallWithDeps(): void
{
$this->repo->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($packageB = self::getPackage('B', '1.0'));
$this->repo->addPackage($newPackageB = self::getPackage('B', '1.1'));
$packageA->setRequires(['b' => new Link('A', 'B', self::getVersionConstraint('<', '1.1'), Link::TYPE_REQUIRE)]);
$this->reposComplete();
$this->request->requireName('A');
$this->checkSolverResult([
['job' => 'install', 'package' => $packageB],
['job' => 'install', 'package' => $packageA],
]);
}
public function testSolverInstallHonoursNotEqualOperator(): void
{
$this->repo->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($packageB = self::getPackage('B', '1.0'));
$this->repo->addPackage($newPackageB11 = self::getPackage('B', '1.1'));
$this->repo->addPackage($newPackageB12 = self::getPackage('B', '1.2'));
$this->repo->addPackage($newPackageB13 = self::getPackage('B', '1.3'));
$packageA->setRequires([
'b' => new Link('A', 'B', new MultiConstraint([
self::getVersionConstraint('<=', '1.3'),
self::getVersionConstraint('<>', '1.3'),
self::getVersionConstraint('!=', '1.2'),
]), Link::TYPE_REQUIRE),
]);
$this->reposComplete();
$this->request->requireName('A');
$this->checkSolverResult([
['job' => 'install', 'package' => $newPackageB11],
['job' => 'install', 'package' => $packageA],
]);
}
public function testSolverInstallWithDepsInOrder(): void
{
$this->repo->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($packageB = self::getPackage('B', '1.0'));
$this->repo->addPackage($packageC = self::getPackage('C', '1.0'));
$packageB->setRequires([
'a' => new Link('B', 'A', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
'c' => new Link('B', 'C', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
]);
$packageC->setRequires([
'a' => new Link('C', 'A', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
]);
$this->reposComplete();
$this->request->requireName('A');
$this->request->requireName('B');
$this->request->requireName('C');
$this->checkSolverResult([
['job' => 'install', 'package' => $packageA],
['job' => 'install', 'package' => $packageC],
['job' => 'install', 'package' => $packageB],
]);
}
/**
* This test covers a particular behavior of the solver related to packages with the same name and version,
* but different requirements on other packages.
* Imagine you had multiple instances of packages (same name/version) with e.g. different dists depending on what other related package they were "built" for.
*
* An example people can probably relate to, so it was chosen here for better readability:
* - PHP versions 8.0.10 and 7.4.23 could be a package
* - ext-foobar 1.0.0 could be a package, but it must be built separately for each PHP x.y series
* - thus each of the ext-foobar packages lists the "PHP" package as a dependency
*
* This is not something that can happen with packages on e.g. Packagist, but custom installers with custom repositories might do something like this;
* in fact, some PaaSes do the exact thing above, installing binary builds of PHP and extensions as Composer packages with a custom installer in a separate step before the "userland" `composer install`.
*
* If version selectors are sufficiently permissive (e.g. "ourcustom/php":"*", "ourcustom/ext-foobar":"*"), then it may happen that the Solver won't pick the highest possible PHP version, as it has already settled on an "ext-foobar" (they're all the same version to the Solver, it doesn't know about the different requirements in each of the otherwise identical packages) if that was listed in "require" before "php".
* That's "unfixable", and not even broken, behavior (what if the "ext-foobar" has higher versions for the lower "PHP"? who wins then? any combination of the packages is "correct"), but it shouldn't randomly change.
* This test asserts this behavior to prevent regressions.
*
* CAUTION: IF THIS TEST EVER FAILS, SOLVER BEHAVIOR HAS CHANGED AND MAY BREAK DOWNSTREAM USERS
*/
public function testSolverMultiPackageNameVersionResolutionDependsOnRequireOrder(): void
{
$this->repo->addPackage($php74 = self::getPackage('ourcustom/PHP', '7.4.23'));
$this->repo->addPackage($php80 = self::getPackage('ourcustom/PHP', '8.0.10'));
$this->repo->addPackage($extForPhp74 = self::getPackage('ourcustom/ext-foobar', '1.0'));
$this->repo->addPackage($extForPhp80 = self::getPackage('ourcustom/ext-foobar', '1.0'));
$extForPhp74->setRequires([
'ourcustom/php' => new Link('ourcustom/ext-foobar', 'ourcustom/PHP', new MultiConstraint([
self::getVersionConstraint('>=', '7.4.0'),
self::getVersionConstraint('<', '7.5.0'),
]), Link::TYPE_REQUIRE),
]);
$extForPhp80->setRequires([
'ourcustom/php' => new Link('ourcustom/ext-foobar', 'ourcustom/PHP', new MultiConstraint([
self::getVersionConstraint('>=', '8.0.0'),
self::getVersionConstraint('<', '8.1.0'),
]), Link::TYPE_REQUIRE),
]);
$this->reposComplete();
$this->request->requireName('ourcustom/PHP');
$this->request->requireName('ourcustom/ext-foobar');
$this->checkSolverResult([
['job' => 'install', 'package' => $php80],
['job' => 'install', 'package' => $extForPhp80],
]);
// now we flip the requirements around: we request "ext-foobar" before "php"
// because the ext-foobar package that requires php74 comes first in the repo, and the one that requires php80 second, the solver will pick the one for php74, and then, as it is a dependency, also php74
// this is because both packages have the same name and version; just their requirements differ
// and because no other constraint forces a particular version of package "php"
$this->request = new Request($this->repoLocked);
$this->request->requireName('ourcustom/ext-foobar');
$this->request->requireName('ourcustom/PHP');
$this->checkSolverResult([
['job' => 'install', 'package' => $php74],
['job' => 'install', 'package' => $extForPhp74],
]);
}
/**
* This test is almost the same as above, except we're inserting the package with the requirement on the other package in a different order, asserting that if that is done, the order of requirements no longer matters
*
* CAUTION: IF THIS TEST EVER FAILS, SOLVER BEHAVIOR HAS CHANGED AND MAY BREAK DOWNSTREAM USERS
*/
public function testSolverMultiPackageNameVersionResolutionIsIndependentOfRequireOrderIfOrderedDescendingByRequirement(): void
{
$this->repo->addPackage($php74 = self::getPackage('ourcustom/PHP', '7.4'));
$this->repo->addPackage($php80 = self::getPackage('ourcustom/PHP', '8.0'));
$this->repo->addPackage($extForPhp80 = self::getPackage('ourcustom/ext-foobar', '1.0')); // note we are inserting this one into the repo first, unlike in the previous test
$this->repo->addPackage($extForPhp74 = self::getPackage('ourcustom/ext-foobar', '1.0'));
$extForPhp80->setRequires([
'ourcustom/php' => new Link('ourcustom/ext-foobar', 'ourcustom/PHP', new MultiConstraint([
self::getVersionConstraint('>=', '8.0.0'),
self::getVersionConstraint('<', '8.1.0'),
]), Link::TYPE_REQUIRE),
]);
$extForPhp74->setRequires([
'ourcustom/php' => new Link('ourcustom/ext-foobar', 'ourcustom/PHP', new MultiConstraint([
self::getVersionConstraint('>=', '7.4.0'),
self::getVersionConstraint('<', '7.5.0'),
]), Link::TYPE_REQUIRE),
]);
$this->reposComplete();
$this->request->requireName('ourcustom/PHP');
$this->request->requireName('ourcustom/ext-foobar');
$this->checkSolverResult([
['job' => 'install', 'package' => $php80],
['job' => 'install', 'package' => $extForPhp80],
]);
// unlike in the previous test, the order of requirements no longer matters now
$this->request = new Request($this->repoLocked);
$this->request->requireName('ourcustom/ext-foobar');
$this->request->requireName('ourcustom/PHP');
$this->checkSolverResult([
['job' => 'install', 'package' => $php80],
['job' => 'install', 'package' => $extForPhp80],
]);
}
public function testSolverFixLocked(): void
{
$this->repoLocked->addPackage($packageA = self::getPackage('A', '1.0'));
$this->reposComplete();
$this->request->fixPackage($packageA);
$this->checkSolverResult([]);
}
public function testSolverFixLockedWithAlternative(): void
{
$this->repo->addPackage(self::getPackage('A', '1.0'));
$this->repoLocked->addPackage($packageA = self::getPackage('A', '1.0'));
$this->reposComplete();
$this->request->fixPackage($packageA);
$this->checkSolverResult([]);
}
public function testSolverUpdateDoesOnlyUpdate(): void
{
$this->repoLocked->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repoLocked->addPackage($packageB = self::getPackage('B', '1.0'));
$this->repo->addPackage($newPackageB = self::getPackage('B', '1.1'));
$this->reposComplete();
$packageA->setRequires(['b' => new Link('A', 'B', self::getVersionConstraint('>=', '1.0.0.0'), Link::TYPE_REQUIRE)]);
$this->request->fixPackage($packageA);
$this->request->requireName('B', self::getVersionConstraint('=', '1.1.0.0'));
$this->checkSolverResult([
['job' => 'update', 'from' => $packageB, 'to' => $newPackageB],
]);
}
public function testSolverUpdateSingle(): void
{
$this->repoLocked->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($newPackageA = self::getPackage('A', '1.1'));
$this->reposComplete();
$this->request->requireName('A');
$this->checkSolverResult([
['job' => 'update', 'from' => $packageA, 'to' => $newPackageA],
]);
}
public function testSolverUpdateAll(): void
{
$this->repoLocked->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repoLocked->addPackage($packageB = self::getPackage('B', '1.0'));
$this->repo->addPackage($newPackageA = self::getPackage('A', '1.1'));
$this->repo->addPackage($newPackageB = self::getPackage('B', '1.1'));
$packageA->setRequires(['b' => new Link('A', 'B', new MatchAllConstraint(), Link::TYPE_REQUIRE)]);
$newPackageA->setRequires(['b' => new Link('A', 'B', new MatchAllConstraint(), Link::TYPE_REQUIRE)]);
$this->reposComplete();
$this->request->requireName('A');
$this->checkSolverResult([
['job' => 'update', 'from' => $packageB, 'to' => $newPackageB],
['job' => 'update', 'from' => $packageA, 'to' => $newPackageA],
]);
}
public function testSolverUpdateCurrent(): void
{
$this->repoLocked->addPackage(self::getPackage('A', '1.0'));
$this->repo->addPackage(self::getPackage('A', '1.0'));
$this->reposComplete();
$this->request->requireName('A');
$this->checkSolverResult([]);
}
public function testSolverUpdateOnlyUpdatesSelectedPackage(): void
{
$this->repoLocked->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repoLocked->addPackage($packageB = self::getPackage('B', '1.0'));
$this->repo->addPackage($packageAnewer = self::getPackage('A', '1.1'));
$this->repo->addPackage($packageBnewer = self::getPackage('B', '1.1'));
$this->reposComplete();
$this->request->requireName('A');
$this->request->fixPackage($packageB);
$this->checkSolverResult([
['job' => 'update', 'from' => $packageA, 'to' => $packageAnewer],
]);
}
public function testSolverUpdateConstrained(): void
{
$this->repoLocked->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($newPackageA = self::getPackage('A', '1.2'));
$this->repo->addPackage(self::getPackage('A', '2.0'));
$this->reposComplete();
$this->request->requireName('A', self::getVersionConstraint('<', '2.0.0.0'));
$this->checkSolverResult([[
'job' => 'update',
'from' => $packageA,
'to' => $newPackageA,
]]);
}
public function testSolverUpdateFullyConstrained(): void
{
$this->repoLocked->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($newPackageA = self::getPackage('A', '1.2'));
$this->repo->addPackage(self::getPackage('A', '2.0'));
$this->reposComplete();
$this->request->requireName('A', self::getVersionConstraint('<', '2.0.0.0'));
$this->checkSolverResult([[
'job' => 'update',
'from' => $packageA,
'to' => $newPackageA,
]]);
}
public function testSolverUpdateFullyConstrainedPrunesInstalledPackages(): void
{
$this->repoLocked->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repoLocked->addPackage($packageB = self::getPackage('B', '1.0'));
$this->repo->addPackage($newPackageA = self::getPackage('A', '1.2'));
$this->repo->addPackage(self::getPackage('A', '2.0'));
$this->reposComplete();
$this->request->requireName('A', self::getVersionConstraint('<', '2.0.0.0'));
$this->checkSolverResult([
[
'job' => 'remove',
'package' => $packageB,
],
[
'job' => 'update',
'from' => $packageA,
'to' => $newPackageA,
],
]);
}
public function testSolverAllJobs(): void
{
$this->repoLocked->addPackage($packageD = self::getPackage('D', '1.0'));
$this->repoLocked->addPackage($oldPackageC = self::getPackage('C', '1.0'));
$this->repo->addPackage($packageA = self::getPackage('A', '2.0'));
$this->repo->addPackage($packageB = self::getPackage('B', '1.0'));
$this->repo->addPackage($newPackageB = self::getPackage('B', '1.1'));
$this->repo->addPackage($packageC = self::getPackage('C', '1.1'));
$this->repo->addPackage(self::getPackage('D', '1.0'));
$packageA->setRequires(['b' => new Link('A', 'B', self::getVersionConstraint('<', '1.1'), Link::TYPE_REQUIRE)]);
$this->reposComplete();
$this->request->requireName('A');
$this->request->requireName('C');
$this->checkSolverResult([
['job' => 'remove', 'package' => $packageD],
['job' => 'install', 'package' => $packageB],
['job' => 'install', 'package' => $packageA],
['job' => 'update', 'from' => $oldPackageC, 'to' => $packageC],
]);
}
public function testSolverThreeAlternativeRequireAndConflict(): void
{
$this->repo->addPackage($packageA = self::getPackage('A', '2.0'));
$this->repo->addPackage($middlePackageB = self::getPackage('B', '1.0'));
$this->repo->addPackage($newPackageB = self::getPackage('B', '1.1'));
$this->repo->addPackage($oldPackageB = self::getPackage('B', '0.9'));
$packageA->setRequires(['b' => new Link('A', 'B', self::getVersionConstraint('<', '1.1'), Link::TYPE_REQUIRE)]);
$packageA->setConflicts(['b' => new Link('A', 'B', self::getVersionConstraint('<', '1.0'), Link::TYPE_CONFLICT)]);
$this->reposComplete();
$this->request->requireName('A');
$this->checkSolverResult([
['job' => 'install', 'package' => $middlePackageB],
['job' => 'install', 'package' => $packageA],
]);
}
public function testSolverObsolete(): void
{
$this->repoLocked->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($packageB = self::getPackage('B', '1.0'));
$packageB->setReplaces(['a' => new Link('B', 'A', new MatchAllConstraint())]);
$this->reposComplete();
$this->request->requireName('B');
$this->checkSolverResult([
['job' => 'remove', 'package' => $packageA],
['job' => 'install', 'package' => $packageB],
]);
}
public function testInstallOneOfTwoAlternatives(): void
{
$this->repo->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($packageB = self::getPackage('A', '1.0'));
$this->reposComplete();
$this->request->requireName('A');
$this->checkSolverResult([
['job' => 'install', 'package' => $packageA],
]);
}
public function testInstallProvider(): void
{
$this->repo->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($packageQ = self::getPackage('Q', '1.0'));
$packageA->setRequires(['b' => new Link('A', 'B', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE)]);
$packageQ->setProvides(['b' => new Link('Q', 'B', self::getVersionConstraint('=', '1.0'), Link::TYPE_PROVIDE)]);
$this->reposComplete();
$this->request->requireName('A');
// must explicitly pick the provider, so error in this case
self::expectException('Composer\DependencyResolver\SolverProblemsException');
$this->createSolver();
$this->solver->solve($this->request);
}
public function testSkipReplacerOfExistingPackage(): void
{
$this->repo->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($packageQ = self::getPackage('Q', '1.0'));
$this->repo->addPackage($packageB = self::getPackage('B', '1.0'));
$packageA->setRequires(['b' => new Link('A', 'B', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE)]);
$packageQ->setReplaces(['b' => new Link('Q', 'B', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REPLACE)]);
$this->reposComplete();
$this->request->requireName('A');
$this->checkSolverResult([
['job' => 'install', 'package' => $packageB],
['job' => 'install', 'package' => $packageA],
]);
}
public function testNoInstallReplacerOfMissingPackage(): void
{
$this->repo->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($packageQ = self::getPackage('Q', '1.0'));
$packageA->setRequires(['b' => new Link('A', 'B', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE)]);
$packageQ->setReplaces(['b' => new Link('Q', 'B', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REPLACE)]);
$this->reposComplete();
$this->request->requireName('A');
self::expectException('Composer\DependencyResolver\SolverProblemsException');
$this->createSolver();
$this->solver->solve($this->request);
}
public function testSkipReplacedPackageIfReplacerIsSelected(): void
{
$this->repo->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($packageQ = self::getPackage('Q', '1.0'));
$this->repo->addPackage($packageB = self::getPackage('B', '1.0'));
$packageA->setRequires(['b' => new Link('A', 'B', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE)]);
$packageQ->setReplaces(['b' => new Link('Q', 'B', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REPLACE)]);
$this->reposComplete();
$this->request->requireName('A');
$this->request->requireName('Q');
$this->checkSolverResult([
['job' => 'install', 'package' => $packageQ],
['job' => 'install', 'package' => $packageA],
]);
}
public function testPickOlderIfNewerConflicts(): void
{
$this->repo->addPackage($packageX = self::getPackage('X', '1.0'));
$packageX->setRequires([
'a' => new Link('X', 'A', self::getVersionConstraint('>=', '2.0.0.0'), Link::TYPE_REQUIRE),
'b' => new Link('X', 'B', self::getVersionConstraint('>=', '2.0.0.0'), Link::TYPE_REQUIRE),
]);
$this->repo->addPackage($packageA = self::getPackage('A', '2.0.0'));
$this->repo->addPackage($newPackageA = self::getPackage('A', '2.1.0'));
$this->repo->addPackage($newPackageB = self::getPackage('B', '2.1.0'));
$packageA->setRequires(['b' => new Link('A', 'B', self::getVersionConstraint('>=', '2.0.0.0'), Link::TYPE_REQUIRE)]);
// new package A depends on version of package B that does not exist
// => new package A is not installable
$newPackageA->setRequires(['b' => new Link('A', 'B', self::getVersionConstraint('>=', '2.2.0.0'), Link::TYPE_REQUIRE)]);
// add a package S replacing both A and B, so that S and B or S and A cannot be simultaneously installed
// but an alternative option for A and B both exists
// this creates a more difficult so solve conflict
$this->repo->addPackage($packageS = self::getPackage('S', '2.0.0'));
$packageS->setReplaces([
'a' => new Link('S', 'A', self::getVersionConstraint('>=', '2.0.0.0'), Link::TYPE_REPLACE),
'b' => new Link('S', 'B', self::getVersionConstraint('>=', '2.0.0.0'), Link::TYPE_REPLACE),
]);
$this->reposComplete();
$this->request->requireName('X');
$this->checkSolverResult([
['job' => 'install', 'package' => $newPackageB],
['job' => 'install', 'package' => $packageA],
['job' => 'install', 'package' => $packageX],
]);
}
public function testInstallCircularRequire(): void
{
$this->repo->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($packageB1 = self::getPackage('B', '0.9'));
$this->repo->addPackage($packageB2 = self::getPackage('B', '1.1'));
$packageA->setRequires(['b' => new Link('A', 'B', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE)]);
$packageB2->setRequires(['a' => new Link('B', 'A', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE)]);
$this->reposComplete();
$this->request->requireName('A');
$this->checkSolverResult([
['job' => 'install', 'package' => $packageB2],
['job' => 'install', 'package' => $packageA],
]);
}
public function testInstallAlternativeWithCircularRequire(): void
{
$this->repo->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($packageB = self::getPackage('B', '1.0'));
$this->repo->addPackage($packageC = self::getPackage('C', '1.0'));
$this->repo->addPackage($packageD = self::getPackage('D', '1.0'));
$packageA->setRequires(['b' => new Link('A', 'B', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE)]);
$packageB->setRequires(['virtual' => new Link('B', 'Virtual', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE)]);
$packageC->setProvides(['virtual' => new Link('C', 'Virtual', self::getVersionConstraint('==', '1.0'), Link::TYPE_PROVIDE)]);
$packageD->setProvides(['virtual' => new Link('D', 'Virtual', self::getVersionConstraint('==', '1.0'), Link::TYPE_PROVIDE)]);
$packageC->setRequires(['a' => new Link('C', 'A', self::getVersionConstraint('==', '1.0'), Link::TYPE_REQUIRE)]);
$packageD->setRequires(['a' => new Link('D', 'A', self::getVersionConstraint('==', '1.0'), Link::TYPE_REQUIRE)]);
$this->reposComplete();
$this->request->requireName('A');
$this->request->requireName('C');
$this->checkSolverResult([
['job' => 'install', 'package' => $packageB],
['job' => 'install', 'package' => $packageA],
['job' => 'install', 'package' => $packageC],
]);
}
/**
* If a replacer D replaces B and C with C not otherwise available,
* D must be installed instead of the original B.
*/
public function testUseReplacerIfNecessary(): void
{
$this->repo->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($packageB = self::getPackage('B', '1.0'));
$this->repo->addPackage($packageD = self::getPackage('D', '1.0'));
$this->repo->addPackage($packageD2 = self::getPackage('D', '1.1'));
$packageA->setRequires([
'b' => new Link('A', 'B', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
'c' => new Link('A', 'C', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
]);
$packageD->setReplaces([
'b' => new Link('D', 'B', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REPLACE),
'c' => new Link('D', 'C', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REPLACE),
]);
$packageD2->setReplaces([
'b' => new Link('D', 'B', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REPLACE),
'c' => new Link('D', 'C', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REPLACE),
]);
$this->reposComplete();
$this->request->requireName('A');
$this->request->requireName('D');
$this->checkSolverResult([
['job' => 'install', 'package' => $packageD2],
['job' => 'install', 'package' => $packageA],
]);
}
public function testIssue265(): void
{
$this->repo->addPackage($packageA1 = self::getPackage('A', '2.0.999999-dev'));
$this->repo->addPackage($packageA2 = self::getPackage('A', '2.1-dev'));
$this->repo->addPackage($packageA3 = self::getPackage('A', '2.2-dev'));
$this->repo->addPackage($packageB1 = self::getPackage('B', '2.0.10'));
$this->repo->addPackage($packageB2 = self::getPackage('B', '2.0.9'));
$this->repo->addPackage($packageC = self::getPackage('C', '2.0-dev'));
$this->repo->addPackage($packageD = self::getPackage('D', '2.0.9'));
$packageC->setRequires([
'a' => new Link('C', 'A', self::getVersionConstraint('>=', '2.0'), Link::TYPE_REQUIRE),
'd' => new Link('C', 'D', self::getVersionConstraint('>=', '2.0'), Link::TYPE_REQUIRE),
]);
$packageD->setRequires([
'a' => new Link('D', 'A', self::getVersionConstraint('>=', '2.1'), Link::TYPE_REQUIRE),
'b' => new Link('D', 'B', self::getVersionConstraint('>=', '2.0-dev'), Link::TYPE_REQUIRE),
]);
$packageB1->setRequires(['a' => new Link('B', 'A', self::getVersionConstraint('==', '2.1.0.0-dev'), Link::TYPE_REQUIRE)]);
$packageB2->setRequires(['a' => new Link('B', 'A', self::getVersionConstraint('==', '2.1.0.0-dev'), Link::TYPE_REQUIRE)]);
$packageB2->setReplaces(['d' => new Link('B', 'D', self::getVersionConstraint('==', '2.0.9.0'), Link::TYPE_REPLACE)]);
$this->reposComplete();
$this->request->requireName('C', self::getVersionConstraint('==', '2.0.0.0-dev'));
self::expectException('Composer\DependencyResolver\SolverProblemsException');
$this->createSolver();
$this->solver->solve($this->request);
}
public function testConflictResultEmpty(): void
{
$this->repo->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($packageB = self::getPackage('B', '1.0'));
$packageA->setConflicts([
'b' => new Link('A', 'B', self::getVersionConstraint('>=', '1.0'), Link::TYPE_CONFLICT),
]);
$this->reposComplete();
$emptyConstraint = new MatchAllConstraint();
$emptyConstraint->setPrettyString('*');
$this->request->requireName('A', $emptyConstraint);
$this->request->requireName('B', $emptyConstraint);
$this->createSolver();
try {
$transaction = $this->solver->solve($this->request);
$this->fail('Unsolvable conflict did not result in exception.');
} catch (SolverProblemsException $e) {
$problems = $e->getProblems();
$this->assertCount(1, $problems);
$msg = "\n";
$msg .= " Problem 1\n";
$msg .= " - Root composer.json requires a * -> satisfiable by A[1.0].\n";
$msg .= " - A 1.0 conflicts with B 1.0.\n";
$msg .= " - Root composer.json requires b * -> satisfiable by B[1.0].\n";
$this->assertEquals($msg, $e->getPrettyString($this->repoSet, $this->request, $this->pool, false));
}
}
public function testUnsatisfiableRequires(): void
{
$this->repo->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($packageB = self::getPackage('B', '1.0'));
$packageA->setRequires([
'b' => new Link('A', 'B', self::getVersionConstraint('>=', '2.0'), Link::TYPE_REQUIRE),
]);
$this->reposComplete();
$this->request->requireName('A');
$this->createSolver();
try {
$transaction = $this->solver->solve($this->request);
$this->fail('Unsolvable conflict did not result in exception.');
} catch (SolverProblemsException $e) {
$problems = $e->getProblems();
$this->assertCount(1, $problems);
// TODO assert problem properties
$msg = "\n";
$msg .= " Problem 1\n";
$msg .= " - Root composer.json requires a * -> satisfiable by A[1.0].\n";
$msg .= " - A 1.0 requires b >= 2.0 -> found B[1.0] but it does not match the constraint.\n";
$this->assertEquals($msg, $e->getPrettyString($this->repoSet, $this->request, $this->pool, false));
}
}
public function testRequireMismatchException(): void
{
$this->repo->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($packageB = self::getPackage('B', '1.0'));
$this->repo->addPackage($packageB2 = self::getPackage('B', '0.9'));
$this->repo->addPackage($packageC = self::getPackage('C', '1.0'));
$this->repo->addPackage($packageD = self::getPackage('D', '1.0'));
$packageA->setRequires([
'b' => new Link('A', 'B', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
]);
$packageB->setRequires([
'c' => new Link('B', 'C', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
]);
$packageC->setRequires([
'd' => new Link('C', 'D', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
]);
$packageD->setRequires([
'b' => new Link('D', 'B', self::getVersionConstraint('<', '1.0'), Link::TYPE_REQUIRE),
]);
$this->reposComplete();
$emptyConstraint = new MatchAllConstraint();
$emptyConstraint->setPrettyString('*');
$this->request->requireName('A', $emptyConstraint);
$this->createSolver();
try {
$transaction = $this->solver->solve($this->request);
$this->fail('Unsolvable conflict did not result in exception.');
} catch (SolverProblemsException $e) {
$problems = $e->getProblems();
$this->assertCount(1, $problems);
$msg = "\n";
$msg .= " Problem 1\n";
$msg .= " - C 1.0 requires d >= 1.0 -> satisfiable by D[1.0].\n";
$msg .= " - D 1.0 requires b < 1.0 -> satisfiable by B[0.9].\n";
$msg .= " - B 1.0 requires c >= 1.0 -> satisfiable by C[1.0].\n";
$msg .= " - You can only install one version of a package, so only one of these can be installed: B[0.9, 1.0].\n";
$msg .= " - A 1.0 requires b >= 1.0 -> satisfiable by B[1.0].\n";
$msg .= " - Root composer.json requires a * -> satisfiable by A[1.0].\n";
$this->assertEquals($msg, $e->getPrettyString($this->repoSet, $this->request, $this->pool, false));
}
}
public function testLearnLiteralsWithSortedRuleLiterals(): void
{
$this->repo->addPackage($packageTwig2 = self::getPackage('twig/twig', '2.0'));
$this->repo->addPackage($packageTwig16 = self::getPackage('twig/twig', '1.6'));
$this->repo->addPackage($packageTwig15 = self::getPackage('twig/twig', '1.5'));
$this->repo->addPackage($packageSymfony = self::getPackage('symfony/symfony', '2.0'));
$this->repo->addPackage($packageTwigBridge = self::getPackage('symfony/twig-bridge', '2.0'));
$packageTwigBridge->setRequires([
'twig/twig' => new Link('symfony/twig-bridge', 'twig/twig', self::getVersionConstraint('<', '2.0'), Link::TYPE_REQUIRE),
]);
$packageSymfony->setReplaces([
'symfony/twig-bridge' => new Link('symfony/symfony', 'symfony/twig-bridge', self::getVersionConstraint('==', '2.0'), Link::TYPE_REPLACE),
]);
$this->reposComplete();
$this->request->requireName('symfony/twig-bridge');
$this->request->requireName('twig/twig');
$this->checkSolverResult([
['job' => 'install', 'package' => $packageTwig16],
['job' => 'install', 'package' => $packageTwigBridge],
]);
}
public function testInstallRecursiveAliasDependencies(): void
{
$this->repo->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($packageB = self::getPackage('B', '2.0'));
$this->repo->addPackage($packageA2 = self::getPackage('A', '2.0'));
$packageA2->setRequires([
'b' => new Link('A', 'B', self::getVersionConstraint('==', '2.0'), Link::TYPE_REQUIRE, '== 2.0'),
]);
$packageB->setRequires([
'a' => new Link('B', 'A', self::getVersionConstraint('>=', '2.0'), Link::TYPE_REQUIRE),
]);
$this->repo->addPackage($packageA2Alias = self::getAliasPackage($packageA2, '1.1'));
$this->reposComplete();
$this->request->requireName('A', self::getVersionConstraint('==', '1.1.0.0'));
$this->checkSolverResult([
['job' => 'install', 'package' => $packageB],
['job' => 'install', 'package' => $packageA2],
['job' => 'markAliasInstalled', 'package' => $packageA2Alias],
]);
}
public function testInstallDevAlias(): void
{
$this->repo->addPackage($packageA = self::getPackage('A', '2.0'));
$this->repo->addPackage($packageB = self::getPackage('B', '1.0'));
$packageB->setRequires([
'a' => new Link('B', 'A', self::getVersionConstraint('<', '2.0'), Link::TYPE_REQUIRE),
]);
$this->repo->addPackage($packageAAlias = self::getAliasPackage($packageA, '1.1'));
$this->reposComplete();
$this->request->requireName('A', self::getVersionConstraint('==', '2.0'));
$this->request->requireName('B');
$this->checkSolverResult([
['job' => 'install', 'package' => $packageA],
['job' => 'markAliasInstalled', 'package' => $packageAAlias],
['job' => 'install', 'package' => $packageB],
]);
}
public function testInstallRootAliasesIfAliasOfIsInstalled(): void
{
// root aliased, required
$this->repo->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($packageAAlias = self::getAliasPackage($packageA, '1.1'));
$packageAAlias->setRootPackageAlias(true);
// root aliased, not required, should still be installed as it is root alias
$this->repo->addPackage($packageB = self::getPackage('B', '1.0'));
$this->repo->addPackage($packageBAlias = self::getAliasPackage($packageB, '1.1'));
$packageBAlias->setRootPackageAlias(true);
// regular alias, not required, alias should not be installed
$this->repo->addPackage($packageC = self::getPackage('C', '1.0'));
$this->repo->addPackage($packageCAlias = self::getAliasPackage($packageC, '1.1'));
$this->reposComplete();
$this->request->requireName('A', self::getVersionConstraint('==', '1.1'));
$this->request->requireName('B', self::getVersionConstraint('==', '1.0'));
$this->request->requireName('C', self::getVersionConstraint('==', '1.0'));
$this->checkSolverResult([
['job' => 'install', 'package' => $packageA],
['job' => 'markAliasInstalled', 'package' => $packageAAlias],
['job' => 'install', 'package' => $packageB],
['job' => 'markAliasInstalled', 'package' => $packageBAlias],
['job' => 'install', 'package' => $packageC],
['job' => 'markAliasInstalled', 'package' => $packageCAlias],
]);
}
/**
* Tests for a bug introduced in commit 451bab1c2cd58e05af6e21639b829408ad023463 Solver.php line 554/523
*
* Every package and link in this test matters, only a combination this complex will run into the situation in which
* a negatively decided literal will need to be learned inverted as a positive assertion.
*
* In particular in this case the goal is to first have the solver decide X 2.0 should not be installed to later
* decide to learn that X 2.0 must be installed and revert decisions to retry solving with this new assumption.
*/
public function testLearnPositiveLiteral(): void
{
$this->repo->addPackage($packageA = self::getPackage('A', '1.0'));
$this->repo->addPackage($packageB = self::getPackage('B', '1.0'));
$this->repo->addPackage($packageC1 = self::getPackage('C', '1.0'));
$this->repo->addPackage($packageC2 = self::getPackage('C', '2.0'));
$this->repo->addPackage($packageD = self::getPackage('D', '1.0'));
$this->repo->addPackage($packageE = self::getPackage('E', '1.0'));
$this->repo->addPackage($packageF1 = self::getPackage('F', '1.0'));
$this->repo->addPackage($packageF2 = self::getPackage('F', '2.0'));
$this->repo->addPackage($packageG1 = self::getPackage('G', '1.0'));
$this->repo->addPackage($packageG2 = self::getPackage('G', '2.0'));
$this->repo->addPackage($packageG3 = self::getPackage('G', '3.0'));
$packageA->setRequires([
'b' => new Link('A', 'B', self::getVersionConstraint('==', '1.0'), Link::TYPE_REQUIRE),
'c' => new Link('A', 'C', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
'd' => new Link('A', 'D', self::getVersionConstraint('==', '1.0'), Link::TYPE_REQUIRE),
]);
$packageB->setRequires([
'e' => new Link('B', 'E', self::getVersionConstraint('==', '1.0'), Link::TYPE_REQUIRE),
]);
$packageC1->setRequires([
'f' => new Link('C', 'F', self::getVersionConstraint('==', '1.0'), Link::TYPE_REQUIRE),
]);
$packageC2->setRequires([
'f' => new Link('C', 'F', self::getVersionConstraint('==', '1.0'), Link::TYPE_REQUIRE),
'g' => new Link('C', 'G', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
]);
$packageD->setRequires([
'f' => new Link('D', 'F', self::getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
]);
$packageE->setRequires([
'g' => new Link('E', 'G', self::getVersionConstraint('<=', '2.0'), Link::TYPE_REQUIRE),
]);
$this->reposComplete();
$this->request->requireName('A');
$this->createSolver();
// check correct setup for assertion later
$this->assertFalse($this->solver->testFlagLearnedPositiveLiteral);
$this->checkSolverResult([
['job' => 'install', 'package' => $packageF1],
['job' => 'install', 'package' => $packageD],
['job' => 'install', 'package' => $packageG2],
['job' => 'install', 'package' => $packageC2],
['job' => 'install', 'package' => $packageE],
['job' => 'install', 'package' => $packageB],
['job' => 'install', 'package' => $packageA],
]);
// verify that the code path leading to a negative literal resulting in a positive learned literal is actually
// executed
$this->assertTrue($this->solver->testFlagLearnedPositiveLiteral);
}
protected function reposComplete(): void
{
$this->repoSet->addRepository($this->repo);
$this->repoSet->addRepository($this->repoLocked);
}
protected function createSolver(): void
{
$io = new NullIO();
$this->pool = $this->repoSet->createPool($this->request, $io);
$this->solver = new Solver($this->policy, $this->pool, $io);
}
/**
* @param array<array{job: string, package?: PackageInterface, from?: PackageInterface, to?: PackageInterface}> $expected
*/
protected function checkSolverResult(array $expected): void
{
$this->createSolver();
$transaction = $this->solver->solve($this->request);
$result = [];
foreach ($transaction->getOperations() as $operation) {
if ($operation instanceof UpdateOperation) {
$result[] = [
'job' => 'update',
'from' => $operation->getInitialPackage(),
'to' => $operation->getTargetPackage(),
];
} elseif ($operation instanceof MarkAliasInstalledOperation || $operation instanceof MarkAliasUninstalledOperation) {
$result[] = [
'job' => $operation->getOperationType(),
'package' => $operation->getPackage(),
];
} elseif ($operation instanceof UninstallOperation || $operation instanceof InstallOperation) {
$job = ('uninstall' === $operation->getOperationType() ? 'remove' : 'install');
$result[] = [
'job' => $job,
'package' => $operation->getPackage(),
];
} else {
throw new \LogicException('Unexpected operation: '.get_class($operation));
}
}
$expectedReadable = [];
foreach ($expected as $op) {
$expectedReadable[] = array_map('strval', $op);
}
$resultReadable = [];
foreach ($result as $op) {
$resultReadable[] = array_map('strval', $op);
}
$this->assertEquals($expectedReadable, $resultReadable);
$this->assertEquals($expected, $result);
}
}