Try

Author: VincentLanglet

src/Rules/PHPUnit/MockMethodCallRule.php

@@ -52,6 +52,12 @@ public function processNode(Node $node, Scope $scope): array
 				return $class !== MockObject::class;
 			});
 
+			// `MockBuilder::setMethods` and `MockBuilder::addMethods` are not supported by this rule
+			// so since a lot of the usage are with `stdClass`, we silent the error
+			if (\implode('&', $mockClass) === 'stdClass') {
+				return [];
+			}
+
 			return [
 				sprintf(
 					'Trying to mock an undefined method %s() on class %s.',

tests/Rules/PHPUnit/data/mock-method-call.php

@@ -31,9 +31,9 @@ public function testWithMockBuilder()
 		$this->getMockBuilder(Bar::class)->getMock()->method('doBadThing');
 	}
 
-	public function testWhenAddingMethod()
+	public function testWhenAddingMethodToStdClass()
 	{
-		$this->getMockBuilder(Bar::class)->setMethods(['doBadThing'])->getMock()->method('doBadThing');
+		$this->getMockBuilder(\stdClass::class)->setMethods(['doBadThing'])->getMock()->method('doBadThing');
 	}
 
 }