JUnit output format

src/ChangesReporting/Output/JUnitOutputFormatter.php

@@ -0,0 +1,131 @@
+<?php
+
+/**
+ * JUnit specification:
+ * - https://github.com/junit-team/junit5/blob/main/platform-tests/src/test/resources/jenkins-junit.xsda
+ */
+
+declare(strict_types=1);
+
+namespace Rector\ChangesReporting\Output;
+
+use DOMDocument;
+use DOMElement;
+use Rector\ChangesReporting\Contract\Output\OutputFormatterInterface;
+use Rector\ValueObject\Configuration;
+use Rector\ValueObject\ProcessResult;
+use Symfony\Component\Console\Style\SymfonyStyle;
+
+final readonly class JUnitOutputFormatter implements OutputFormatterInterface
+{
+    public const NAME = 'junit';
+
+    private const XML_ATTRIBUTE_FILE = 'file';
+    private const XML_ATTRIBUTE_NAME = 'name';
+    private const XML_ATTRIBUTE_TYPE = 'type';
+
+    private const XML_ELEMENT_TESTSUITES = 'testsuites';
+    private const XML_ELEMENT_TESTSUITE = 'testsuite';
+    private const XML_ELEMENT_TESTCASE = 'testcase';
+    private const XML_ELEMENT_ERROR = 'error';
+
+    public function __construct(
+        private SymfonyStyle $symfonyStyle,
+    ) {
+
+    }
+
+    public function getName(): string
+    {
+        return self::NAME;
+    }
+
+    public function report(ProcessResult $processResult, Configuration $configuration): void
+    {
+        if (!extension_loaded('dom')) {
+            $this->symfonyStyle->warning(
+                'The "dom" extension is not loaded. The rector could not generate a response in the JUnit format',
+            );
+
+            return;
+        }
+
+        $domDocument = new DOMDocument('1.0', 'UTF-8');
+
+        $xmlTestSuite = $domDocument->createElement(self::XML_ELEMENT_TESTSUITE);
+        $xmlTestSuite->setAttribute(self::XML_ATTRIBUTE_NAME, 'rector');
+
+        $xmlTestSuites = $domDocument->createElement(self::XML_ELEMENT_TESTSUITES);
+        $xmlTestSuites->appendChild($xmlTestSuite);
+
+        $domDocument->appendChild($xmlTestSuites);
+
+        $this->appendSystemErrors($processResult, $configuration, $domDocument, $xmlTestSuite);
+        $this->appendFileDiffs($processResult, $configuration, $domDocument, $xmlTestSuite);
+
+        echo $domDocument->saveXML() . PHP_EOL;
+    }
+
+    private function appendSystemErrors(
+        ProcessResult $processResult,
+        Configuration $configuration,
+        DOMDocument $domDocument,
+        DOMElement $xmlTestSuite,
+    ): void
+    {
+        if (count($processResult->getSystemErrors()) === 0) {
+            return;
+        }
+
+        foreach ($processResult->getSystemErrors() as $error) {
+            $filePath = $configuration->isReportingWithRealPath()
+                ? ($error->getAbsoluteFilePath() ?? '')
+                : ($error->getRelativeFilePath() ?? '')
+            ;
+
+            $xmlError = $domDocument->createElement(self::XML_ELEMENT_ERROR, $error->getMessage());
+            $xmlError->setAttribute(self::XML_ATTRIBUTE_TYPE, 'Error');
+
+            $xmlTestCase = $domDocument->createElement(self::XML_ELEMENT_TESTCASE);
+            $xmlTestCase->setAttribute(self::XML_ATTRIBUTE_FILE, $filePath);
+            $xmlTestCase->setAttribute(self::XML_ATTRIBUTE_NAME, $filePath . ':' . $error->getLine());
+            $xmlTestCase->appendChild($xmlError);
+
+            $xmlTestSuite->appendChild($xmlTestCase);
+        }
+    }
+
+    private function appendFileDiffs(
+        ProcessResult $processResult,
+        Configuration $configuration,
+        DOMDocument $domDocument,
+        DOMElement $xmlTestSuite,
+    ): void
+    {
+        if (count($processResult->getFileDiffs()) === 0) {
+            return;
+        }
+
+        $fileDiffs = $processResult->getFileDiffs();
+        ksort($fileDiffs);
+
+        foreach ($fileDiffs as $fileDiff) {
+            $filePath = $configuration->isReportingWithRealPath()
+                ? ($fileDiff->getAbsoluteFilePath() ?? '')
+                : ($fileDiff->getRelativeFilePath() ?? '')
+            ;
+
+            $rectorClasses = implode(' / ', $fileDiff->getRectorShortClasses());
+
+            $xmlError = $domDocument->createElement(self::XML_ELEMENT_ERROR, $fileDiff->getDiff());
+            $xmlError->setAttribute(self::XML_ATTRIBUTE_TYPE, $rectorClasses);
+
+            $xmlTestCase = $domDocument->createElement(self::XML_ELEMENT_TESTCASE);
+            $xmlTestCase->setAttribute(self::XML_ATTRIBUTE_FILE, $filePath);
+            $xmlTestCase->setAttribute(self::XML_ATTRIBUTE_NAME, $filePath . ':' . $fileDiff->getFirstLineNumber());
+            $xmlTestCase->appendChild($xmlError);
+
+            $xmlTestSuite->appendChild($xmlTestCase);
+        }
+    }
+}

src/DependencyInjection/LazyContainerFactory.php

@@ -40,6 +40,7 @@
 use Rector\ChangesReporting\Output\ConsoleOutputFormatter;
 use Rector\ChangesReporting\Output\GitlabOutputFormatter;
 use Rector\ChangesReporting\Output\JsonOutputFormatter;
+use Rector\ChangesReporting\Output\JUnitOutputFormatter;
 use Rector\CodingStyle\ClassNameImport\ClassNameImportSkipper;
 use Rector\CodingStyle\ClassNameImport\ClassNameImportSkipVoter\AliasClassNameImportSkipVoter;
 use Rector\CodingStyle\ClassNameImport\ClassNameImportSkipVoter\ClassLikeNameClassNameImportSkipVoter;
@@ -334,6 +335,7 @@ final class LazyContainerFactory
         ConsoleOutputFormatter::class,
         JsonOutputFormatter::class,
         GitlabOutputFormatter::class,
+        JUnitOutputFormatter::class,
     ];
 
     /**