SignatureMapParserTest - check for ErrorType

Author: ondrejmirtes

tests/PHPStan/Reflection/SignatureMap/SignatureMapParserTest.php

@@ -6,6 +6,7 @@
 use PHPStan\Type\ArrayType;
 use PHPStan\Type\BooleanType;
 use PHPStan\Type\CallableType;
+use PHPStan\Type\ErrorType;
 use PHPStan\Type\IntegerType;
 use PHPStan\Type\MixedType;
 use PHPStan\Type\NullType;
@@ -395,11 +396,16 @@ public function testParseAll(): void
 			}
 
 			try {
-				$parser->getFunctionSignature($map, $className);
+				$signature = $parser->getFunctionSignature($map, $className);
 				$count++;
 			} catch (\PHPStan\PhpDocParser\Parser\ParserException $e) {
 				$this->fail(sprintf('Could not parse %s.', $functionName));
 			}
+
+			self::assertNotInstanceOf(ErrorType::class, $signature->getReturnType(), $functionName);
+			foreach ($signature->getParameters() as $parameter) {
+				self::assertNotInstanceOf(ErrorType::class, $parameter->getType(), sprintf('%s (parameter %s)', $functionName, $parameter->getName()));
+			}
 		}
 
 		$this->assertGreaterThan(0, $count);