DataProviderDeclarationRule - report non-static dataProvider only with PHPUnit 10+

Author: ondrejmirtes

extension.neon

@@ -57,6 +57,9 @@ services:
 		class: PHPStan\Rules\PHPUnit\AnnotationHelper
 	-
 		class: PHPStan\Rules\PHPUnit\DataProviderHelper
+		factory: @PHPStan\Rules\PHPUnit\DataProviderHelperFactory::create()
+	-
+		class: PHPStan\Rules\PHPUnit\DataProviderHelperFactory
 
 conditionalTags:
 	PHPStan\PhpDoc\PHPUnit\MockObjectTypeNodeResolverExtension:

src/Rules/PHPUnit/DataProviderHelper.php

@@ -26,9 +26,13 @@ class DataProviderHelper
 	 */
 	private $reflectionProvider;
 
-	public function __construct(ReflectionProvider $reflectionProvider)
+	/** @var bool */
+	private $phpunit10OrNewer;
+
+	public function __construct(ReflectionProvider $reflectionProvider, bool $phpunit10OrNewer)
 	{
 		$this->reflectionProvider = $reflectionProvider;
+		$this->phpunit10OrNewer = $phpunit10OrNewer;
 	}
 
 	/**
@@ -108,9 +112,9 @@ public function processDataProvider(
 			))->build();
 		}
 
-		if ($deprecationRulesInstalled && !$dataProviderMethodReflection->isStatic()) {
+		if ($deprecationRulesInstalled && $this->phpunit10OrNewer && !$dataProviderMethodReflection->isStatic()) {
 			$errors[] = RuleErrorBuilder::message(sprintf(
-				'@dataProvider %s related method must be static.',
+				'@dataProvider %s related method must be static in PHPUnit 10 and newer.',
 				$dataProviderValue
 			))->build();
 		}

src/Rules/PHPUnit/DataProviderHelperFactory.php

@@ -0,0 +1,52 @@
+<?php declare(strict_types = 1);
+
+namespace PHPStan\Rules\PHPUnit;
+
+use PHPStan\Reflection\ReflectionProvider;
+use PHPUnit\Framework\TestCase;
+use function dirname;
+use function explode;
+use function file_get_contents;
+use function is_file;
+use function json_decode;
+
+class DataProviderHelperFactory
+{
+
+	/** @var ReflectionProvider */
+	private $reflectionProvider;
+
+	public function __construct(ReflectionProvider $reflectionProvider)
+	{
+		$this->reflectionProvider = $reflectionProvider;
+	}
+
+	public function create(): DataProviderHelper
+	{
+		$phpUnit10OrNewer = false;
+		if ($this->reflectionProvider->hasClass(TestCase::class)) {
+			$testCase = $this->reflectionProvider->getClass(TestCase::class);
+			$file = $testCase->getFileName();
+			if ($file !== null) {
+				$phpUnitRoot = dirname($file, 3);
+				$phpUnitComposer = $phpUnitRoot . '/composer.json';
+				if (is_file($phpUnitComposer)) {
+					$composerJson = @file_get_contents($phpUnitComposer);
+					if ($composerJson !== false) {
+						$json = json_decode($composerJson, true);
+						$version = $json['extra']['branch-alias']['dev-main'] ?? null;
+						if ($version !== null) {
+							$majorVersion = (int) explode('.', $version)[0];
+							if ($majorVersion >= 10) {
+								$phpUnit10OrNewer = true;
+							}
+						}
+					}
+				}
+			}
+		}
+
+		return new DataProviderHelper($this->reflectionProvider, $phpUnit10OrNewer);
+	}
+
+}

tests/Rules/PHPUnit/DataProviderDeclarationRuleTest.php

@@ -17,7 +17,7 @@ protected function getRule(): Rule
 		$reflection = $this->createReflectionProvider();
 
 		return new DataProviderDeclarationRule(
-			new DataProviderHelper($reflection),
+			new DataProviderHelper($reflection, true),
 			self::getContainer()->getByType(FileTypeMapper::class),
 			true,
 			true
@@ -32,7 +32,7 @@ public function testRule(): void
 				14,
 			],
 			[
-				'@dataProvider provideQux related method must be static.',
+				'@dataProvider provideQux related method must be static in PHPUnit 10 and newer.',
 				14,
 			],
 			[