fix: avoid internal error on higher-order expectations over magic properties

src/Type/Pest/HigherOrderExpectationTypeExtension.php

@@ -13,6 +13,7 @@
 use PhpParser\Node\Expr\PropertyFetch;
 use PhpParser\Node\Identifier;
 use PHPStan\Analyser\Scope;
+use PHPStan\Reflection\MissingPropertyFromReflectionException;
 use PHPStan\Reflection\ReflectionProvider;
 use PHPStan\Type\ExpressionTypeResolverExtension;
 use PHPStan\Type\Generic\GenericObjectType;
@@ -187,7 +188,11 @@ private function resolvePropertyType(Type $objectType, string $propertyName, Sco
             return null;
         }
 
-        return $objectType->getProperty($propertyName, $scope)->getReadableType();
+        try {
+            return $objectType->getProperty($propertyName, $scope)->getReadableType();
+        } catch (MissingPropertyFromReflectionException) {
+            return new MixedType;
+        }
     }
 
     private function isNativeExpectationProperty(string $propertyName): bool

tests/Type/Fixtures/MagicPropertyObject.php

@@ -0,0 +1,13 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Type\Fixtures;
+
+final class MagicPropertyObject
+{
+    public function __get(string $name): mixed
+    {
+        return null;
+    }
+}

tests/Type/data/higher-order-expectations.php

@@ -4,6 +4,7 @@
 
 namespace HigherOrderExpectations;
 
+use Tests\Type\Fixtures\MagicPropertyObject;
 use Tests\Type\Fixtures\Post;
 
 use function PHPStan\Testing\assertType;
@@ -107,3 +108,25 @@ function testPropertyChainAfterAssertionReset(): void
         ->author;
     assertType('Pest\Expectations\HigherOrderExpectation<Pest\Expectation<Tests\Type\Fixtures\Post>, Tests\Type\Fixtures\Author>', $result);
 }
+
+function testMagicPropertyDoesNotCrash(): void
+{
+    $object = new MagicPropertyObject;
+    $result = expect($object)->name;
+    assertType('Pest\Expectations\HigherOrderExpectation<Pest\Expectation<Tests\Type\Fixtures\MagicPropertyObject>, mixed>', $result);
+}
+
+function testMagicPropertyChainDoesNotCrash(): void
+{
+    $object = new MagicPropertyObject;
+    $result = expect($object)->name->toBe('Nuno');
+    assertType('Pest\Expectations\HigherOrderExpectation<Pest\Expectation<Tests\Type\Fixtures\MagicPropertyObject>, Tests\Type\Fixtures\MagicPropertyObject>', $result);
+}
+
+function testUnionWithoutClassPropertyDoesNotCrash(): void
+{
+    /** @var array<string, mixed>|object|null $payload */
+    $payload = null;
+    $result = expect($payload)->currentUser;
+    assertType('Pest\Expectations\HigherOrderExpectation<Pest\Expectation<array<string, mixed>|object|null>, mixed>', $result);
+}