Initial work on #4321

.psalm/baseline.xml

@@ -720,6 +720,8 @@
                 )]]></code>
       <code><![CDATA[OutputFacade::printerFor($configuration->logfileJunit())]]></code>
       <code><![CDATA[OutputFacade::printerFor($configuration->logfileJunit())]]></code>
+      <code><![CDATA[OutputFacade::printerFor($configuration->logfileXml())]]></code>
+      <code><![CDATA[OutputFacade::printerFor($configuration->logfileXml())]]></code>
       <code>atLeastVersion</code>
       <code>build</code>
       <code>configurationFile</code>
@@ -732,6 +734,7 @@
       <code>logEventsVerboseText</code>
       <code>logfileJunit</code>
       <code>logfileTeamcity</code>
+      <code>logfileXml</code>
     </MissingThrowsDocblock>
     <UnresolvableInclude>
       <code>include_once $filename</code>

phpunit.xsd

@@ -287,6 +287,7 @@
     </xs:group>
     <xs:group name="loggingGroup">
         <xs:all>
+            <xs:element name="xml" type="logToFileType" minOccurs="0" />
             <xs:element name="junit" type="logToFileType" minOccurs="0" />
             <xs:element name="teamcity" type="logToFileType" minOccurs="0" />
             <xs:element name="testdoxHtml" type="logToFileType" minOccurs="0" />

src/Logging/Xml/Subscriber/Subscriber.php

@@ -0,0 +1,28 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of PHPUnit.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PHPUnit\Logging\Xml;
+
+/**
+ * @internal This class is not covered by the backward compatibility promise for PHPUnit
+ */
+abstract class Subscriber
+{
+    private readonly XmlLogger $logger;
+
+    public function __construct(XmlLogger $logger)
+    {
+        $this->logger = $logger;
+    }
+
+    protected function logger(): XmlLogger
+    {
+        return $this->logger;
+    }
+}

src/Logging/Xml/Subscriber/TestRunnerExecutionFinishedSubscriber.php

@@ -0,0 +1,24 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of PHPUnit.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PHPUnit\Logging\Xml;
+
+use PHPUnit\Event\TestRunner\ExecutionFinished;
+use PHPUnit\Event\TestRunner\ExecutionFinishedSubscriber;
+
+/**
+ * @internal This class is not covered by the backward compatibility promise for PHPUnit
+ */
+final class TestRunnerExecutionFinishedSubscriber extends Subscriber implements ExecutionFinishedSubscriber
+{
+    public function notify(ExecutionFinished $event): void
+    {
+        $this->logger()->flush();
+    }
+}

src/Logging/Xml/XmlLogger.php

@@ -0,0 +1,52 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of PHPUnit.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PHPUnit\Logging\Xml;
+
+use PHPUnit\Event\EventFacadeIsSealedException;
+use PHPUnit\Event\Facade;
+use PHPUnit\Event\UnknownSubscriberTypeException;
+use PHPUnit\TextUI\Output\Printer;
+
+/**
+ * @internal This class is not covered by the backward compatibility promise for PHPUnit
+ */
+final class XmlLogger
+{
+    private readonly Printer $printer;
+
+    /**
+     * @throws EventFacadeIsSealedException
+     * @throws UnknownSubscriberTypeException
+     */
+    public function __construct(Printer $printer, Facade $facade)
+    {
+        $this->printer = $printer;
+
+        $this->registerSubscribers($facade);
+    }
+
+    public function flush(): void
+    {
+        $this->printer->print('todo');
+
+        $this->printer->flush();
+    }
+
+    /**
+     * @throws EventFacadeIsSealedException
+     * @throws UnknownSubscriberTypeException
+     */
+    private function registerSubscribers(Facade $facade): void
+    {
+        $facade->registerSubscribers(
+            new TestRunnerExecutionFinishedSubscriber($this),
+        );
+    }
+}

src/TextUI/Application.php

@@ -27,6 +27,7 @@
 use PHPUnit\Logging\TestDox\HtmlRenderer as TestDoxHtmlRenderer;
 use PHPUnit\Logging\TestDox\PlainTextRenderer as TestDoxTextRenderer;
 use PHPUnit\Logging\TestDox\TestResultCollector as TestDoxResultCollector;
+use PHPUnit\Logging\Xml\XmlLogger;
 use PHPUnit\Runner\Baseline\CannotLoadBaselineException;
 use PHPUnit\Runner\Baseline\Generator as BaselineGenerator;
 use PHPUnit\Runner\Baseline\Reader;
@@ -528,6 +529,13 @@ private function registerLogfileWriters(Configuration $configuration): void
             EventFacade::emitter()->exportObjects();
         }
 
+        if ($configuration->hasLogfileXml()) {
+            new XmlLogger(
+                OutputFacade::printerFor($configuration->logfileXml()),
+                EventFacade::instance(),
+            );
+        }
+
         if ($configuration->hasLogfileJunit()) {
             new JunitXmlLogger(
                 OutputFacade::printerFor($configuration->logfileJunit()),

src/TextUI/Configuration/Cli/Builder.php

@@ -74,6 +74,7 @@ final class Builder
         'list-tests-xml=',
         'log-junit=',
         'log-teamcity=',
+        'log-xml=',
         'migrate-configuration',
         'no-configuration',
         'no-coverage',
@@ -207,6 +208,7 @@ public function fromParameters(array $parameters): Configuration
         $includePath                       = null;
         $iniSettings                       = [];
         $junitLogfile                      = null;
+        $xmlLogfile                        = null;
         $listGroups                        = false;
         $listSuites                        = false;
         $listTests                         = false;
@@ -457,6 +459,11 @@ public function fromParameters(array $parameters): Configuration
 
                     break;
 
+                case '--log-xml':
+                    $xmlLogfile = $option[1];
+
+                    break;
+
                 case '--order-by':
                     foreach (explode(',', $option[1]) as $order) {
                         switch ($order) {
@@ -867,6 +874,7 @@ public function fromParameters(array $parameters): Configuration
             $help,
             $includePath,
             $iniSettings,
+            $xmlLogfile,
             $junitLogfile,
             $listGroups,
             $listSuites,

src/TextUI/Configuration/Cli/Configuration.php

@@ -78,6 +78,7 @@
     private bool $help;
     private ?string $includePath;
     private ?array $iniSettings;
+    private ?string $xmlLogfile;
     private ?string $junitLogfile;
     private bool $listGroups;
     private bool $listSuites;
@@ -123,7 +124,7 @@
      * @psalm-param list<non-empty-string> $arguments
      * @psalm-param ?non-empty-list<non-empty-string> $testSuffixes
      */
-    public function __construct(array $arguments, ?string $atLeastVersion, ?bool $backupGlobals, ?bool $backupStaticProperties, ?bool $beStrictAboutChangesToGlobalState, ?string $bootstrap, ?string $cacheDirectory, ?bool $cacheResult, bool $checkVersion, ?string $colors, null|int|string $columns, ?string $configurationFile, ?string $coverageClover, ?string $coverageCobertura, ?string $coverageCrap4J, ?string $coverageHtml, ?string $coveragePhp, ?string $coverageText, ?bool $coverageTextShowUncoveredFiles, ?bool $coverageTextShowOnlySummary, ?string $coverageXml, ?bool $pathCoverage, bool $warmCoverageCache, ?int $defaultTimeLimit, ?bool $disableCodeCoverageIgnore, ?bool $disallowTestOutput, ?bool $enforceTimeLimit, ?array $excludeGroups, ?int $executionOrder, ?int $executionOrderDefects, ?bool $failOnDeprecation, ?bool $failOnEmptyTestSuite, ?bool $failOnIncomplete, ?bool $failOnNotice, ?bool $failOnRisky, ?bool $failOnSkipped, ?bool $failOnWarning, ?bool $stopOnDefect, ?bool $stopOnDeprecation, ?bool $stopOnError, ?bool $stopOnFailure, ?bool $stopOnIncomplete, ?bool $stopOnNotice, ?bool $stopOnRisky, ?bool $stopOnSkipped, ?bool $stopOnWarning, ?string $filter, ?string $generateBaseline, ?string $useBaseline, bool $ignoreBaseline, bool $generateConfiguration, bool $migrateConfiguration, ?array $groups, ?array $testsCovering, ?array $testsUsing, bool $help, ?string $includePath, ?array $iniSettings, ?string $junitLogfile, bool $listGroups, bool $listSuites, bool $listTests, ?string $listTestsXml, ?bool $noCoverage, ?bool $noExtensions, ?bool $noOutput, ?bool $noProgress, ?bool $noResults, ?bool $noLogging, ?bool $processIsolation, ?int $randomOrderSeed, ?bool $reportUselessTests, ?bool $resolveDependencies, ?bool $reverseList, ?bool $stderr, ?bool $strictCoverage, ?string $teamcityLogfile, ?string $testdoxHtmlFile, ?string $testdoxTextFile, ?array $testSuffixes, ?string $testSuite, ?string $excludeTestSuite, bool $useDefaultConfiguration, ?bool $displayDetailsOnIncompleteTests, ?bool $displayDetailsOnSkippedTests, ?bool $displayDetailsOnTestsThatTriggerDeprecations, ?bool $displayDetailsOnTestsThatTriggerErrors, ?bool $displayDetailsOnTestsThatTriggerNotices, ?bool $displayDetailsOnTestsThatTriggerWarnings, bool $version, ?array $coverageFilter, ?string $logEventsText, ?string $logEventsVerboseText, ?bool $printerTeamCity, ?bool $printerTestDox)
+    public function __construct(array $arguments, ?string $atLeastVersion, ?bool $backupGlobals, ?bool $backupStaticProperties, ?bool $beStrictAboutChangesToGlobalState, ?string $bootstrap, ?string $cacheDirectory, ?bool $cacheResult, bool $checkVersion, ?string $colors, null|int|string $columns, ?string $configurationFile, ?string $coverageClover, ?string $coverageCobertura, ?string $coverageCrap4J, ?string $coverageHtml, ?string $coveragePhp, ?string $coverageText, ?bool $coverageTextShowUncoveredFiles, ?bool $coverageTextShowOnlySummary, ?string $coverageXml, ?bool $pathCoverage, bool $warmCoverageCache, ?int $defaultTimeLimit, ?bool $disableCodeCoverageIgnore, ?bool $disallowTestOutput, ?bool $enforceTimeLimit, ?array $excludeGroups, ?int $executionOrder, ?int $executionOrderDefects, ?bool $failOnDeprecation, ?bool $failOnEmptyTestSuite, ?bool $failOnIncomplete, ?bool $failOnNotice, ?bool $failOnRisky, ?bool $failOnSkipped, ?bool $failOnWarning, ?bool $stopOnDefect, ?bool $stopOnDeprecation, ?bool $stopOnError, ?bool $stopOnFailure, ?bool $stopOnIncomplete, ?bool $stopOnNotice, ?bool $stopOnRisky, ?bool $stopOnSkipped, ?bool $stopOnWarning, ?string $filter, ?string $generateBaseline, ?string $useBaseline, bool $ignoreBaseline, bool $generateConfiguration, bool $migrateConfiguration, ?array $groups, ?array $testsCovering, ?array $testsUsing, bool $help, ?string $includePath, ?array $iniSettings, ?string $xmlLogfile, ?string $junitLogfile, bool $listGroups, bool $listSuites, bool $listTests, ?string $listTestsXml, ?bool $noCoverage, ?bool $noExtensions, ?bool $noOutput, ?bool $noProgress, ?bool $noResults, ?bool $noLogging, ?bool $processIsolation, ?int $randomOrderSeed, ?bool $reportUselessTests, ?bool $resolveDependencies, ?bool $reverseList, ?bool $stderr, ?bool $strictCoverage, ?string $teamcityLogfile, ?string $testdoxHtmlFile, ?string $testdoxTextFile, ?array $testSuffixes, ?string $testSuite, ?string $excludeTestSuite, bool $useDefaultConfiguration, ?bool $displayDetailsOnIncompleteTests, ?bool $displayDetailsOnSkippedTests, ?bool $displayDetailsOnTestsThatTriggerDeprecations, ?bool $displayDetailsOnTestsThatTriggerErrors, ?bool $displayDetailsOnTestsThatTriggerNotices, ?bool $displayDetailsOnTestsThatTriggerWarnings, bool $version, ?array $coverageFilter, ?string $logEventsText, ?string $logEventsVerboseText, ?bool $printerTeamCity, ?bool $printerTestDox)
     {
         $this->arguments                                    = $arguments;
         $this->atLeastVersion                               = $atLeastVersion;
@@ -184,6 +185,7 @@ public function __construct(array $arguments, ?string $atLeastVersion, ?bool $ba
         $this->help                                         = $help;
         $this->includePath                                  = $includePath;
         $this->iniSettings                                  = $iniSettings;
+        $this->xmlLogfile                                   = $xmlLogfile;
         $this->junitLogfile                                 = $junitLogfile;
         $this->listGroups                                   = $listGroups;
         $this->listSuites                                   = $listSuites;
@@ -1300,6 +1302,26 @@ public function iniSettings(): array
         return $this->iniSettings;
     }
 
+    /**
+     * @psalm-assert-if-true !null $this->xmlLogfile
+     */
+    public function hasXmlLogfile(): bool
+    {
+        return $this->xmlLogfile !== null;
+    }
+
+    /**
+     * @throws Exception
+     */
+    public function xmlLogfile(): string
+    {
+        if (!$this->hasXmlLogfile()) {
+            throw new Exception;
+        }
+
+        return $this->xmlLogfile;
+    }
+
     /**
      * @psalm-assert-if-true !null $this->junitLogfile
      */