packages/deriver/tests/Unit/Deriver/Evaluator/Execution/Completion/ReachabilityTest.php

1<?php
2
3declare (strict_types=1);
4
5namespace Tests\Unit\Deriver\Evaluator\Execution\Completion;
6
7use Deriver\Deriver\Contributions;
8use Deriver\Deriver\DeriverConfig;
9use Deriver\Deriver\Evaluator\Call\Evaluators;
10use Deriver\Deriver\Evaluator\Call\Registrations;
11use Deriver\Deriver\Evaluator\EvaluatorConfig;
12use Deriver\Deriver\Evaluator\Evidence\Frontier;
13use Deriver\Deriver\Evaluator\Execution\Completion\Reachability as Subject;
14use Deriver\Deriver\Evaluator\Execution\EvaluatorConfig as ExecutionEvaluatorConfig;
15use Deriver\Deriver\Evaluator\Request\EntryPoint;
16use Deriver\Deriver\Evaluator\Request\QueryScope;
17use Deriver\Deriver\Evaluator\Request\ReturnQuery;
18use Deriver\Deriver\Evaluator\TargetProfile;
19use Deriver\Deriver\Evaluator\Term;
20use Deriver\Deriver\Execution\QueryExecution;
21use Deriver\Deriver\Lowerer\Declaration\Index;
22use Deriver\Deriver\MicroEvaluatorConversion;
23use Deriver\Deriver\Parser\Node\File;
24use Deriver\Deriver\Parser\Parser;
25use Deriver\Deriver\Parser\ParserConfig;
26use Deriver\Deriver\Providers\ProviderExpansion;
27use Deriver\Deriver\Resolver\Resolver;
28use Deriver\Deriver\SnapshotIdentity;
29use Deriver\Deriver\Sources\Path;
30use Deriver\Deriver\Sources\Source;
31use Deriver\Deriver\Sources\Sources;
32use PHPUnit\Framework\Attributes\CoversNothing;
33use PHPUnit\Framework\TestCase;
34
35#[CoversNothing]
36final class ReachabilityTest extends TestCase
37{
38    public function testEntrypointScopeCanProveAnObservationUnreachable(): void
39    {
40        $input = new Sources([new Source('fixture.php', '<?php function entry(){}function target(){return 42;}')]);
41        $configuration = new DeriverConfig();
42        $contributions = new Contributions();
43        $target = new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision);
44        $providers = new ProviderExpansion($input, array_map(Term::fromNative(...), $configuration->environment), $contributions);
45        $contributions1 = $providers->contributions;
46        $evaluators = new Evaluators(new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision), new Registrations($contributions1->evaluators, $contributions1->providers, $contributions1->domains, $contributions1->intrinsics, $contributions1->stateSlots), $configuration->standardEvaluators);
47        $settings = new EvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators, array_map((new MicroEvaluatorConversion())->convert(...), $configuration->evaluators));
48        $identity = new SnapshotIdentity($providers->input, $settings, $evaluators, $providers->manifest);
49        $snapshotId = $identity->id;
50        $input1 = $providers->input;
51        $parser = new Parser(new ParserConfig($target->version));
52        $trees = array_map(static fn (Source $source): File => (new Resolver())->resolve($parser->parse(new Source(Path::normalize($source->path), $source->contents, $source->declarationsOnly))), iterator_to_array($input1, false));
53        $program = new Index($snapshotId, $trees);
54        $session = new QueryExecution($program, new ExecutionEvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators), $evaluators, $identity->snapshot(array_map(Frontier::fromDiagnostic(...), $program->diagnostics())));
55        $result = $session->derive(new ReturnQuery('target', QueryScope::fromEntrypoints([new EntryPoint('entry')])));
56        self::assertSame(Subject::Unreachable, $result->reachability);
57        self::assertSame([], $result->normalOutcomes);
58        self::assertSame(Subject::MayReach, $session->derive(new ReturnQuery('target'))->reachability);
59    }
60}
61