1
0
Fork 0
mirror of https://github.com/composer/composer synced 2025-05-09 00:22:53 +00:00
composer/tests/Composer/Test/DependencyResolver/SolverTest.php
David Zülke 28b2b5c0c9
tests for solver handling multiple packages with same name and version (#10110)
Not a case with regular Packagist packages, but some custom installers with custom repos do this, and the current behavior should not randomly change at some point, as that would cause downstream breakage.
2021-10-02 19:02:22 +02:00

1081 lines
46 KiB
PHP

<?php
/*
* 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\Request;
use Composer\DependencyResolver\Solver;
use Composer\DependencyResolver\SolverProblemsException;
use Composer\Package\Link;
use Composer\Repository\RepositorySet;
use Composer\Test\TestCase;
use Composer\Semver\Constraint\MultiConstraint;
use Composer\Semver\Constraint\MatchAllConstraint;
class SolverTest extends TestCase
{
protected $repoSet;
protected $repo;
protected $repoLocked;
protected $request;
protected $policy;
protected $solver;
protected $pool;
public function setUp()
{
$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()
{
$this->repo->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->reposComplete();
$this->request->requireName('A');
$this->checkSolverResult(array(
array('job' => 'install', 'package' => $packageA),
));
}
public function testSolverRemoveIfNotRequested()
{
$this->repoLocked->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->reposComplete();
$this->checkSolverResult(array(
array('job' => 'remove', 'package' => $packageA),
));
}
public function testInstallNonExistingPackageFails()
{
$this->repo->addPackage($this->getPackage('A', '1.0'));
$this->reposComplete();
$this->request->requireName('B', $this->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()
{
$repo1 = new ArrayRepository;
$repo2 = new ArrayRepository;
$repo1->addPackage($foo1 = $this->getPackage('foo', '1'));
$repo2->addPackage($foo2 = $this->getPackage('foo', '1'));
$this->repoSet->addRepository($repo1);
$this->repoSet->addRepository($repo2);
$this->request->requireName('foo');
$this->checkSolverResult(array(
array('job' => 'install', 'package' => $foo1),
));
}
public function testSolverInstallWithDeps()
{
$this->repo->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($packageB = $this->getPackage('B', '1.0'));
$this->repo->addPackage($newPackageB = $this->getPackage('B', '1.1'));
$packageA->setRequires(array('b' => new Link('A', 'B', $this->getVersionConstraint('<', '1.1'), Link::TYPE_REQUIRE)));
$this->reposComplete();
$this->request->requireName('A');
$this->checkSolverResult(array(
array('job' => 'install', 'package' => $packageB),
array('job' => 'install', 'package' => $packageA),
));
}
public function testSolverInstallHonoursNotEqualOperator()
{
$this->repo->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($packageB = $this->getPackage('B', '1.0'));
$this->repo->addPackage($newPackageB11 = $this->getPackage('B', '1.1'));
$this->repo->addPackage($newPackageB12 = $this->getPackage('B', '1.2'));
$this->repo->addPackage($newPackageB13 = $this->getPackage('B', '1.3'));
$packageA->setRequires(array(
'b' => new Link('A', 'B', new MultiConstraint(array(
$this->getVersionConstraint('<=', '1.3'),
$this->getVersionConstraint('<>', '1.3'),
$this->getVersionConstraint('!=', '1.2'),
)), Link::TYPE_REQUIRE),
));
$this->reposComplete();
$this->request->requireName('A');
$this->checkSolverResult(array(
array('job' => 'install', 'package' => $newPackageB11),
array('job' => 'install', 'package' => $packageA),
));
}
public function testSolverInstallWithDepsInOrder()
{
$this->repo->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($packageB = $this->getPackage('B', '1.0'));
$this->repo->addPackage($packageC = $this->getPackage('C', '1.0'));
$packageB->setRequires(array(
'a' => new Link('B', 'A', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
'c' => new Link('B', 'C', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
));
$packageC->setRequires(array(
'a' => new Link('C', 'A', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
));
$this->reposComplete();
$this->request->requireName('A');
$this->request->requireName('B');
$this->request->requireName('C');
$this->checkSolverResult(array(
array('job' => 'install', 'package' => $packageA),
array('job' => 'install', 'package' => $packageC),
array('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()
{
$this->repo->addPackage($php74 = $this->getPackage('ourcustom/PHP', '7.4.23'));
$this->repo->addPackage($php80 = $this->getPackage('ourcustom/PHP', '8.0.10'));
$this->repo->addPackage($extForPhp74 = $this->getPackage('ourcustom/ext-foobar', '1.0'));
$this->repo->addPackage($extForPhp80 = $this->getPackage('ourcustom/ext-foobar', '1.0'));
$extForPhp74->setRequires(array(
'php' => new Link('ourcustom/ext-foobar', 'ourcustom/PHP', new MultiConstraint(array(
$this->getVersionConstraint('>=', '7.4.0'),
$this->getVersionConstraint('<', '7.5.0'),
)), Link::TYPE_REQUIRE),
));
$extForPhp80->setRequires(array(
'php' => new Link('ourcustom/ext-foobar', 'ourcustom/PHP', new MultiConstraint(array(
$this->getVersionConstraint('>=', '8.0.0'),
$this->getVersionConstraint('<', '8.1.0'),
)), Link::TYPE_REQUIRE),
));
$this->reposComplete();
$this->request->requireName('ourcustom/PHP');
$this->request->requireName('ourcustom/ext-foobar');
$this->checkSolverResult(array(
array('job' => 'install', 'package' => $php80),
array('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(array(
array('job' => 'install', 'package' => $php74),
array('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()
{
$this->repo->addPackage($php74 = $this->getPackage('ourcustom/PHP', '7.4'));
$this->repo->addPackage($php80 = $this->getPackage('ourcustom/PHP', '8.0'));
$this->repo->addPackage($extForPhp80 = $this->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 = $this->getPackage('ourcustom/ext-foobar', '1.0'));
$extForPhp80->setRequires(array(
'php' => new Link('ourcustom/ext-foobar', 'ourcustom/PHP', new MultiConstraint(array(
$this->getVersionConstraint('>=', '8.0.0'),
$this->getVersionConstraint('<', '8.1.0'),
)), Link::TYPE_REQUIRE),
));
$extForPhp74->setRequires(array(
'php' => new Link('ourcustom/ext-foobar', 'ourcustom/PHP', new MultiConstraint(array(
$this->getVersionConstraint('>=', '7.4.0'),
$this->getVersionConstraint('<', '7.5.0'),
)), Link::TYPE_REQUIRE),
));
$this->reposComplete();
$this->request->requireName('ourcustom/PHP');
$this->request->requireName('ourcustom/ext-foobar');
$this->checkSolverResult(array(
array('job' => 'install', 'package' => $php80),
array('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(array(
array('job' => 'install', 'package' => $php80),
array('job' => 'install', 'package' => $extForPhp80),
));
}
public function testSolverFixLocked()
{
$this->repoLocked->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->reposComplete();
$this->request->fixPackage($packageA);
$this->checkSolverResult(array());
}
public function testSolverFixLockedWithAlternative()
{
$this->repo->addPackage($this->getPackage('A', '1.0'));
$this->repoLocked->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->reposComplete();
$this->request->fixPackage($packageA);
$this->checkSolverResult(array());
}
public function testSolverUpdateDoesOnlyUpdate()
{
$this->repoLocked->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repoLocked->addPackage($packageB = $this->getPackage('B', '1.0'));
$this->repo->addPackage($newPackageB = $this->getPackage('B', '1.1'));
$this->reposComplete();
$packageA->setRequires(array('b' => new Link('A', 'B', $this->getVersionConstraint('>=', '1.0.0.0'), Link::TYPE_REQUIRE)));
$this->request->fixPackage($packageA);
$this->request->requireName('B', $this->getVersionConstraint('=', '1.1.0.0'));
$this->checkSolverResult(array(
array('job' => 'update', 'from' => $packageB, 'to' => $newPackageB),
));
}
public function testSolverUpdateSingle()
{
$this->repoLocked->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($newPackageA = $this->getPackage('A', '1.1'));
$this->reposComplete();
$this->request->requireName('A');
$this->checkSolverResult(array(
array('job' => 'update', 'from' => $packageA, 'to' => $newPackageA),
));
}
public function testSolverUpdateAll()
{
$this->repoLocked->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repoLocked->addPackage($packageB = $this->getPackage('B', '1.0'));
$this->repo->addPackage($newPackageA = $this->getPackage('A', '1.1'));
$this->repo->addPackage($newPackageB = $this->getPackage('B', '1.1'));
$packageA->setRequires(array('b' => new Link('A', 'B', new MatchAllConstraint(), Link::TYPE_REQUIRE)));
$newPackageA->setRequires(array('b' => new Link('A', 'B', new MatchAllConstraint(), Link::TYPE_REQUIRE)));
$this->reposComplete();
$this->request->requireName('A');
$this->checkSolverResult(array(
array('job' => 'update', 'from' => $packageB, 'to' => $newPackageB),
array('job' => 'update', 'from' => $packageA, 'to' => $newPackageA),
));
}
public function testSolverUpdateCurrent()
{
$this->repoLocked->addPackage($this->getPackage('A', '1.0'));
$this->repo->addPackage($this->getPackage('A', '1.0'));
$this->reposComplete();
$this->request->requireName('A');
$this->checkSolverResult(array());
}
public function testSolverUpdateOnlyUpdatesSelectedPackage()
{
$this->repoLocked->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repoLocked->addPackage($packageB = $this->getPackage('B', '1.0'));
$this->repo->addPackage($packageAnewer = $this->getPackage('A', '1.1'));
$this->repo->addPackage($packageBnewer = $this->getPackage('B', '1.1'));
$this->reposComplete();
$this->request->requireName('A');
$this->request->fixPackage($packageB);
$this->checkSolverResult(array(
array('job' => 'update', 'from' => $packageA, 'to' => $packageAnewer),
));
}
public function testSolverUpdateConstrained()
{
$this->repoLocked->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($newPackageA = $this->getPackage('A', '1.2'));
$this->repo->addPackage($this->getPackage('A', '2.0'));
$this->reposComplete();
$this->request->requireName('A', $this->getVersionConstraint('<', '2.0.0.0'));
$this->checkSolverResult(array(array(
'job' => 'update',
'from' => $packageA,
'to' => $newPackageA,
)));
}
public function testSolverUpdateFullyConstrained()
{
$this->repoLocked->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($newPackageA = $this->getPackage('A', '1.2'));
$this->repo->addPackage($this->getPackage('A', '2.0'));
$this->reposComplete();
$this->request->requireName('A', $this->getVersionConstraint('<', '2.0.0.0'));
$this->checkSolverResult(array(array(
'job' => 'update',
'from' => $packageA,
'to' => $newPackageA,
)));
}
public function testSolverUpdateFullyConstrainedPrunesInstalledPackages()
{
$this->repoLocked->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repoLocked->addPackage($packageB = $this->getPackage('B', '1.0'));
$this->repo->addPackage($newPackageA = $this->getPackage('A', '1.2'));
$this->repo->addPackage($this->getPackage('A', '2.0'));
$this->reposComplete();
$this->request->requireName('A', $this->getVersionConstraint('<', '2.0.0.0'));
$this->checkSolverResult(array(
array(
'job' => 'remove',
'package' => $packageB,
),
array(
'job' => 'update',
'from' => $packageA,
'to' => $newPackageA,
),
));
}
public function testSolverAllJobs()
{
$this->repoLocked->addPackage($packageD = $this->getPackage('D', '1.0'));
$this->repoLocked->addPackage($oldPackageC = $this->getPackage('C', '1.0'));
$this->repo->addPackage($packageA = $this->getPackage('A', '2.0'));
$this->repo->addPackage($packageB = $this->getPackage('B', '1.0'));
$this->repo->addPackage($newPackageB = $this->getPackage('B', '1.1'));
$this->repo->addPackage($packageC = $this->getPackage('C', '1.1'));
$this->repo->addPackage($this->getPackage('D', '1.0'));
$packageA->setRequires(array('b' => new Link('A', 'B', $this->getVersionConstraint('<', '1.1'), Link::TYPE_REQUIRE)));
$this->reposComplete();
$this->request->requireName('A');
$this->request->requireName('C');
$this->checkSolverResult(array(
array('job' => 'remove', 'package' => $packageD),
array('job' => 'install', 'package' => $packageB),
array('job' => 'install', 'package' => $packageA),
array('job' => 'update', 'from' => $oldPackageC, 'to' => $packageC),
));
}
public function testSolverThreeAlternativeRequireAndConflict()
{
$this->repo->addPackage($packageA = $this->getPackage('A', '2.0'));
$this->repo->addPackage($middlePackageB = $this->getPackage('B', '1.0'));
$this->repo->addPackage($newPackageB = $this->getPackage('B', '1.1'));
$this->repo->addPackage($oldPackageB = $this->getPackage('B', '0.9'));
$packageA->setRequires(array('b' => new Link('A', 'B', $this->getVersionConstraint('<', '1.1'), Link::TYPE_REQUIRE)));
$packageA->setConflicts(array('b' => new Link('A', 'B', $this->getVersionConstraint('<', '1.0'), Link::TYPE_CONFLICT)));
$this->reposComplete();
$this->request->requireName('A');
$this->checkSolverResult(array(
array('job' => 'install', 'package' => $middlePackageB),
array('job' => 'install', 'package' => $packageA),
));
}
public function testSolverObsolete()
{
$this->repoLocked->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($packageB = $this->getPackage('B', '1.0'));
$packageB->setReplaces(array('a' => new Link('B', 'A', new MatchAllConstraint())));
$this->reposComplete();
$this->request->requireName('B');
$this->checkSolverResult(array(
array('job' => 'remove', 'package' => $packageA),
array('job' => 'install', 'package' => $packageB),
));
}
public function testInstallOneOfTwoAlternatives()
{
$this->repo->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($packageB = $this->getPackage('A', '1.0'));
$this->reposComplete();
$this->request->requireName('A');
$this->checkSolverResult(array(
array('job' => 'install', 'package' => $packageA),
));
}
public function testInstallProvider()
{
$this->repo->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($packageQ = $this->getPackage('Q', '1.0'));
$packageA->setRequires(array('b' => new Link('A', 'B', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE)));
$packageQ->setProvides(array('b' => new Link('Q', 'B', $this->getVersionConstraint('=', '1.0'), Link::TYPE_PROVIDE)));
$this->reposComplete();
$this->request->requireName('A');
// must explicitly pick the provider, so error in this case
$this->setExpectedException('Composer\DependencyResolver\SolverProblemsException');
$this->createSolver();
$this->solver->solve($this->request);
}
public function testSkipReplacerOfExistingPackage()
{
$this->repo->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($packageQ = $this->getPackage('Q', '1.0'));
$this->repo->addPackage($packageB = $this->getPackage('B', '1.0'));
$packageA->setRequires(array('b' => new Link('A', 'B', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE)));
$packageQ->setReplaces(array('b' => new Link('Q', 'B', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REPLACE)));
$this->reposComplete();
$this->request->requireName('A');
$this->checkSolverResult(array(
array('job' => 'install', 'package' => $packageB),
array('job' => 'install', 'package' => $packageA),
));
}
public function testNoInstallReplacerOfMissingPackage()
{
$this->repo->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($packageQ = $this->getPackage('Q', '1.0'));
$packageA->setRequires(array('b' => new Link('A', 'B', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE)));
$packageQ->setReplaces(array('b' => new Link('Q', 'B', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REPLACE)));
$this->reposComplete();
$this->request->requireName('A');
$this->setExpectedException('Composer\DependencyResolver\SolverProblemsException');
$this->createSolver();
$this->solver->solve($this->request);
}
public function testSkipReplacedPackageIfReplacerIsSelected()
{
$this->repo->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($packageQ = $this->getPackage('Q', '1.0'));
$this->repo->addPackage($packageB = $this->getPackage('B', '1.0'));
$packageA->setRequires(array('b' => new Link('A', 'B', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE)));
$packageQ->setReplaces(array('b' => new Link('Q', 'B', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REPLACE)));
$this->reposComplete();
$this->request->requireName('A');
$this->request->requireName('Q');
$this->checkSolverResult(array(
array('job' => 'install', 'package' => $packageQ),
array('job' => 'install', 'package' => $packageA),
));
}
public function testPickOlderIfNewerConflicts()
{
$this->repo->addPackage($packageX = $this->getPackage('X', '1.0'));
$packageX->setRequires(array(
'a' => new Link('X', 'A', $this->getVersionConstraint('>=', '2.0.0.0'), Link::TYPE_REQUIRE),
'b' => new Link('X', 'B', $this->getVersionConstraint('>=', '2.0.0.0'), Link::TYPE_REQUIRE),
));
$this->repo->addPackage($packageA = $this->getPackage('A', '2.0.0'));
$this->repo->addPackage($newPackageA = $this->getPackage('A', '2.1.0'));
$this->repo->addPackage($newPackageB = $this->getPackage('B', '2.1.0'));
$packageA->setRequires(array('b' => new Link('A', 'B', $this->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(array('b' => new Link('A', 'B', $this->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 = $this->getPackage('S', '2.0.0'));
$packageS->setReplaces(array(
'a' => new Link('S', 'A', $this->getVersionConstraint('>=', '2.0.0.0'), Link::TYPE_REPLACE),
'b' => new Link('S', 'B', $this->getVersionConstraint('>=', '2.0.0.0'), Link::TYPE_REPLACE),
));
$this->reposComplete();
$this->request->requireName('X');
$this->checkSolverResult(array(
array('job' => 'install', 'package' => $newPackageB),
array('job' => 'install', 'package' => $packageA),
array('job' => 'install', 'package' => $packageX),
));
}
public function testInstallCircularRequire()
{
$this->repo->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($packageB1 = $this->getPackage('B', '0.9'));
$this->repo->addPackage($packageB2 = $this->getPackage('B', '1.1'));
$packageA->setRequires(array('b' => new Link('A', 'B', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE)));
$packageB2->setRequires(array('a' => new Link('B', 'A', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE)));
$this->reposComplete();
$this->request->requireName('A');
$this->checkSolverResult(array(
array('job' => 'install', 'package' => $packageB2),
array('job' => 'install', 'package' => $packageA),
));
}
public function testInstallAlternativeWithCircularRequire()
{
$this->repo->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($packageB = $this->getPackage('B', '1.0'));
$this->repo->addPackage($packageC = $this->getPackage('C', '1.0'));
$this->repo->addPackage($packageD = $this->getPackage('D', '1.0'));
$packageA->setRequires(array('b' => new Link('A', 'B', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE)));
$packageB->setRequires(array('virtual' => new Link('B', 'Virtual', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE)));
$packageC->setProvides(array('virtual' => new Link('C', 'Virtual', $this->getVersionConstraint('==', '1.0'), Link::TYPE_PROVIDE)));
$packageD->setProvides(array('virtual' => new Link('D', 'Virtual', $this->getVersionConstraint('==', '1.0'), Link::TYPE_PROVIDE)));
$packageC->setRequires(array('a' => new Link('C', 'A', $this->getVersionConstraint('==', '1.0'), Link::TYPE_REQUIRE)));
$packageD->setRequires(array('a' => new Link('D', 'A', $this->getVersionConstraint('==', '1.0'), Link::TYPE_REQUIRE)));
$this->reposComplete();
$this->request->requireName('A');
$this->request->requireName('C');
$this->checkSolverResult(array(
array('job' => 'install', 'package' => $packageB),
array('job' => 'install', 'package' => $packageA),
array('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()
{
$this->repo->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($packageB = $this->getPackage('B', '1.0'));
$this->repo->addPackage($packageD = $this->getPackage('D', '1.0'));
$this->repo->addPackage($packageD2 = $this->getPackage('D', '1.1'));
$packageA->setRequires(array(
'b' => new Link('A', 'B', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
'c' => new Link('A', 'C', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
));
$packageD->setReplaces(array(
'b' => new Link('D', 'B', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REPLACE),
'c' => new Link('D', 'C', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REPLACE),
));
$packageD2->setReplaces(array(
'b' => new Link('D', 'B', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REPLACE),
'c' => new Link('D', 'C', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REPLACE),
));
$this->reposComplete();
$this->request->requireName('A');
$this->request->requireName('D');
$this->checkSolverResult(array(
array('job' => 'install', 'package' => $packageD2),
array('job' => 'install', 'package' => $packageA),
));
}
public function testIssue265()
{
$this->repo->addPackage($packageA1 = $this->getPackage('A', '2.0.999999-dev'));
$this->repo->addPackage($packageA2 = $this->getPackage('A', '2.1-dev'));
$this->repo->addPackage($packageA3 = $this->getPackage('A', '2.2-dev'));
$this->repo->addPackage($packageB1 = $this->getPackage('B', '2.0.10'));
$this->repo->addPackage($packageB2 = $this->getPackage('B', '2.0.9'));
$this->repo->addPackage($packageC = $this->getPackage('C', '2.0-dev'));
$this->repo->addPackage($packageD = $this->getPackage('D', '2.0.9'));
$packageC->setRequires(array(
'a' => new Link('C', 'A', $this->getVersionConstraint('>=', '2.0'), Link::TYPE_REQUIRE),
'd' => new Link('C', 'D', $this->getVersionConstraint('>=', '2.0'), Link::TYPE_REQUIRE),
));
$packageD->setRequires(array(
'a' => new Link('D', 'A', $this->getVersionConstraint('>=', '2.1'), Link::TYPE_REQUIRE),
'b' => new Link('D', 'B', $this->getVersionConstraint('>=', '2.0-dev'), Link::TYPE_REQUIRE),
));
$packageB1->setRequires(array('a' => new Link('B', 'A', $this->getVersionConstraint('==', '2.1.0.0-dev'), Link::TYPE_REQUIRE)));
$packageB2->setRequires(array('a' => new Link('B', 'A', $this->getVersionConstraint('==', '2.1.0.0-dev'), Link::TYPE_REQUIRE)));
$packageB2->setReplaces(array('d' => new Link('B', 'D', $this->getVersionConstraint('==', '2.0.9.0'), Link::TYPE_REPLACE)));
$this->reposComplete();
$this->request->requireName('C', $this->getVersionConstraint('==', '2.0.0.0-dev'));
$this->setExpectedException('Composer\DependencyResolver\SolverProblemsException');
$this->createSolver();
$this->solver->solve($this->request);
}
public function testConflictResultEmpty()
{
$this->repo->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($packageB = $this->getPackage('B', '1.0'));
$packageA->setConflicts(array(
'b' => new Link('A', 'B', $this->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()
{
$this->repo->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($packageB = $this->getPackage('B', '1.0'));
$packageA->setRequires(array(
'b' => new Link('A', 'B', $this->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()
{
$this->repo->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($packageB = $this->getPackage('B', '1.0'));
$this->repo->addPackage($packageB2 = $this->getPackage('B', '0.9'));
$this->repo->addPackage($packageC = $this->getPackage('C', '1.0'));
$this->repo->addPackage($packageD = $this->getPackage('D', '1.0'));
$packageA->setRequires(array(
'b' => new Link('A', 'B', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
));
$packageB->setRequires(array(
'c' => new Link('B', 'C', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
));
$packageC->setRequires(array(
'd' => new Link('C', 'D', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
));
$packageD->setRequires(array(
'b' => new Link('D', 'B', $this->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()
{
$this->repo->addPackage($packageTwig2 = $this->getPackage('twig/twig', '2.0'));
$this->repo->addPackage($packageTwig16 = $this->getPackage('twig/twig', '1.6'));
$this->repo->addPackage($packageTwig15 = $this->getPackage('twig/twig', '1.5'));
$this->repo->addPackage($packageSymfony = $this->getPackage('symfony/symfony', '2.0'));
$this->repo->addPackage($packageTwigBridge = $this->getPackage('symfony/twig-bridge', '2.0'));
$packageTwigBridge->setRequires(array(
'twig/twig' => new Link('symfony/twig-bridge', 'twig/twig', $this->getVersionConstraint('<', '2.0'), Link::TYPE_REQUIRE),
));
$packageSymfony->setReplaces(array(
'symfony/twig-bridge' => new Link('symfony/symfony', 'symfony/twig-bridge', $this->getVersionConstraint('==', '2.0'), Link::TYPE_REPLACE),
));
$this->reposComplete();
$this->request->requireName('symfony/twig-bridge');
$this->request->requireName('twig/twig');
$this->checkSolverResult(array(
array('job' => 'install', 'package' => $packageTwig16),
array('job' => 'install', 'package' => $packageTwigBridge),
));
}
public function testInstallRecursiveAliasDependencies()
{
$this->repo->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($packageB = $this->getPackage('B', '2.0'));
$this->repo->addPackage($packageA2 = $this->getPackage('A', '2.0'));
$packageA2->setRequires(array(
'b' => new Link('A', 'B', $this->getVersionConstraint('==', '2.0'), Link::TYPE_REQUIRE, '== 2.0'),
));
$packageB->setRequires(array(
'a' => new Link('B', 'A', $this->getVersionConstraint('>=', '2.0'), Link::TYPE_REQUIRE),
));
$this->repo->addPackage($packageA2Alias = $this->getAliasPackage($packageA2, '1.1'));
$this->reposComplete();
$this->request->requireName('A', $this->getVersionConstraint('==', '1.1.0.0'));
$this->checkSolverResult(array(
array('job' => 'install', 'package' => $packageB),
array('job' => 'install', 'package' => $packageA2),
array('job' => 'markAliasInstalled', 'package' => $packageA2Alias),
));
}
public function testInstallDevAlias()
{
$this->repo->addPackage($packageA = $this->getPackage('A', '2.0'));
$this->repo->addPackage($packageB = $this->getPackage('B', '1.0'));
$packageB->setRequires(array(
'a' => new Link('B', 'A', $this->getVersionConstraint('<', '2.0'), Link::TYPE_REQUIRE),
));
$this->repo->addPackage($packageAAlias = $this->getAliasPackage($packageA, '1.1'));
$this->reposComplete();
$this->request->requireName('A', $this->getVersionConstraint('==', '2.0'));
$this->request->requireName('B');
$this->checkSolverResult(array(
array('job' => 'install', 'package' => $packageA),
array('job' => 'markAliasInstalled', 'package' => $packageAAlias),
array('job' => 'install', 'package' => $packageB),
));
}
public function testInstallRootAliasesIfAliasOfIsInstalled()
{
// root aliased, required
$this->repo->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($packageAAlias = $this->getAliasPackage($packageA, '1.1'));
$packageAAlias->setRootPackageAlias(true);
// root aliased, not required, should still be installed as it is root alias
$this->repo->addPackage($packageB = $this->getPackage('B', '1.0'));
$this->repo->addPackage($packageBAlias = $this->getAliasPackage($packageB, '1.1'));
$packageBAlias->setRootPackageAlias(true);
// regular alias, not required, alias should not be installed
$this->repo->addPackage($packageC = $this->getPackage('C', '1.0'));
$this->repo->addPackage($packageCAlias = $this->getAliasPackage($packageC, '1.1'));
$this->reposComplete();
$this->request->requireName('A', $this->getVersionConstraint('==', '1.1'));
$this->request->requireName('B', $this->getVersionConstraint('==', '1.0'));
$this->request->requireName('C', $this->getVersionConstraint('==', '1.0'));
$this->checkSolverResult(array(
array('job' => 'install', 'package' => $packageA),
array('job' => 'markAliasInstalled', 'package' => $packageAAlias),
array('job' => 'install', 'package' => $packageB),
array('job' => 'markAliasInstalled', 'package' => $packageBAlias),
array('job' => 'install', 'package' => $packageC),
array('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()
{
$this->repo->addPackage($packageA = $this->getPackage('A', '1.0'));
$this->repo->addPackage($packageB = $this->getPackage('B', '1.0'));
$this->repo->addPackage($packageC1 = $this->getPackage('C', '1.0'));
$this->repo->addPackage($packageC2 = $this->getPackage('C', '2.0'));
$this->repo->addPackage($packageD = $this->getPackage('D', '1.0'));
$this->repo->addPackage($packageE = $this->getPackage('E', '1.0'));
$this->repo->addPackage($packageF1 = $this->getPackage('F', '1.0'));
$this->repo->addPackage($packageF2 = $this->getPackage('F', '2.0'));
$this->repo->addPackage($packageG1 = $this->getPackage('G', '1.0'));
$this->repo->addPackage($packageG2 = $this->getPackage('G', '2.0'));
$this->repo->addPackage($packageG3 = $this->getPackage('G', '3.0'));
$packageA->setRequires(array(
'b' => new Link('A', 'B', $this->getVersionConstraint('==', '1.0'), Link::TYPE_REQUIRE),
'c' => new Link('A', 'C', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
'd' => new Link('A', 'D', $this->getVersionConstraint('==', '1.0'), Link::TYPE_REQUIRE),
));
$packageB->setRequires(array(
'e' => new Link('B', 'E', $this->getVersionConstraint('==', '1.0'), Link::TYPE_REQUIRE),
));
$packageC1->setRequires(array(
'f' => new Link('C', 'F', $this->getVersionConstraint('==', '1.0'), Link::TYPE_REQUIRE),
));
$packageC2->setRequires(array(
'f' => new Link('C', 'F', $this->getVersionConstraint('==', '1.0'), Link::TYPE_REQUIRE),
'g' => new Link('C', 'G', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
));
$packageD->setRequires(array(
'f' => new Link('D', 'F', $this->getVersionConstraint('>=', '1.0'), Link::TYPE_REQUIRE),
));
$packageE->setRequires(array(
'g' => new Link('E', 'G', $this->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(array(
array('job' => 'install', 'package' => $packageF1),
array('job' => 'install', 'package' => $packageD),
array('job' => 'install', 'package' => $packageG2),
array('job' => 'install', 'package' => $packageC2),
array('job' => 'install', 'package' => $packageE),
array('job' => 'install', 'package' => $packageB),
array('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()
{
$this->repoSet->addRepository($this->repo);
$this->repoSet->addRepository($this->repoLocked);
}
protected function createSolver()
{
$io = new NullIO();
$this->pool = $this->repoSet->createPool($this->request, $io);
$this->solver = new Solver($this->policy, $this->pool, $io);
}
protected function checkSolverResult(array $expected)
{
$this->createSolver();
$transaction = $this->solver->solve($this->request);
$result = array();
foreach ($transaction->getOperations() as $operation) {
if ('update' === $operation->getOperationType()) {
$result[] = array(
'job' => 'update',
'from' => $operation->getInitialPackage(),
'to' => $operation->getTargetPackage(),
);
} elseif (in_array($operation->getOperationType(), array('markAliasInstalled', 'markAliasUninstalled'))) {
$result[] = array(
'job' => $operation->getOperationType(),
'package' => $operation->getPackage(),
);
} else {
$job = ('uninstall' === $operation->getOperationType() ? 'remove' : 'install');
$result[] = array(
'job' => $job,
'package' => $operation->getPackage(),
);
}
}
$expectedReadable = array();
foreach ($expected as $op) {
$expectedReadable[] = array_map('strval', $op);
}
$resultReadable = array();
foreach ($result as $op) {
$resultReadable[] = array_map('strval', $op);
}
$this->assertEquals($expectedReadable, $resultReadable);
$this->assertEquals($expected, $result);
}
}