packages/deriver/tests/Unit/Deriver/Lowerer/Graph/ObservationPhaseTest.php

1<?php
2
3declare (strict_types=1);
4
5namespace Tests\Unit\Deriver\Lowerer\Graph;
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\EvaluatorConfig as ExecutionEvaluatorConfig;
14use Deriver\Deriver\Evaluator\Request\StateQuery;
15use Deriver\Deriver\Evaluator\TargetProfile;
16use Deriver\Deriver\Evaluator\Term;
17use Deriver\Deriver\Execution\QueryExecution;
18use Deriver\Deriver\Lowerer\Declaration\Index;
19use Deriver\Deriver\Lowerer\Graph\ObservationPhase as Subject;
20use Deriver\Deriver\MicroEvaluatorConversion;
21use Deriver\Deriver\Parser\Node\File;
22use Deriver\Deriver\Parser\Parser;
23use Deriver\Deriver\Parser\ParserConfig;
24use Deriver\Deriver\Providers\ProviderExpansion;
25use Deriver\Deriver\Resolver\Resolver;
26use Deriver\Deriver\Selection\CallObservations;
27use Deriver\Deriver\SnapshotIdentity;
28use Deriver\Deriver\Sources\Path;
29use Deriver\Deriver\Sources\Source;
30use Deriver\Deriver\Sources\Sources;
31use PHPUnit\Framework\Attributes\CoversNothing;
32use PHPUnit\Framework\TestCase;
33
34#[CoversNothing]
35final class ObservationPhaseTest extends TestCase
36{
37    public function testPhaseSelectsStateBeforeOrAfterACall(): void
38    {
39        $input = new Sources([new Source('fixture.php', '<?php function target(){$x=1;change($x);}function change(&$v){$v=2;}')]);
40        $configuration = new DeriverConfig();
41        $contributions = new Contributions();
42        $target = new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision);
43        $providers = new ProviderExpansion($input, array_map(Term::fromNative(...), $configuration->environment), $contributions);
44        $contributions1 = $providers->contributions;
45        $evaluators = new Evaluators(new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision), new Registrations($contributions1->evaluators, $contributions1->providers, $contributions1->domains, $contributions1->intrinsics, $contributions1->stateSlots), $configuration->standardEvaluators);
46        $settings = new EvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators, array_map((new MicroEvaluatorConversion())->convert(...), $configuration->evaluators));
47        $identity = new SnapshotIdentity($providers->input, $settings, $evaluators, $providers->manifest);
48        $snapshotId = $identity->id;
49        $input1 = $providers->input;
50        $parser = new Parser(new ParserConfig($target->version));
51        $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));
52        $program = new Index($snapshotId, $trees);
53        $session = new QueryExecution($program, new ExecutionEvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators), $evaluators, $identity->snapshot(array_map(Frontier::fromDiagnostic(...), $program->diagnostics())));
54        $site = (new CallObservations($session->program, $session->evaluators))->find('change')[0];
55        $before = $session->derive(new StateQuery($site->beforeInvocation(), 'x'));
56        $after = $session->derive(new StateQuery($site->afterInvocation(), 'x'));
57        self::assertSame(Subject::Invocation, $site->beforeInvocation()->phase);
58        self::assertSame(Subject::After, $site->afterInvocation()->phase);
59        self::assertSame(1, $before->normalOutcomes[0]->values['state']->native());
60        self::assertSame(2, $after->normalOutcomes[0]->values['state']->native());
61    }
62}
63