Ignore I/O error paths

Author: sebastianbergmann

src/Report/Html/Facade.php

@@ -129,12 +129,14 @@ private function renderCss(string $target): void
 
         try {
             $template->renderTo($this->directory($target . '_css') . 'style.css');
+            // @codeCoverageIgnoreStart
         } catch (Exception $e) {
             throw new FileCouldNotBeWrittenException(
                 $e->getMessage(),
                 $e->getCode(),
                 $e,
             );
+            // @codeCoverageIgnoreEnd
         }
     }
 

src/Report/Xml/Coverage.php

@@ -38,7 +38,9 @@ public function __construct(DOMElement $context, string $line)
     public function addTest(string $test): void
     {
         if ($this->finalized) {
+            // @codeCoverageIgnoreStart
             throw new ReportAlreadyFinalizedException;
+            // @codeCoverageIgnoreEnd
         }
 
         $this->writer->startElement('covered');

src/Report/Xml/Facade.php

@@ -96,13 +96,15 @@ private function setBuildInformation(): void
     private function initTargetDirectory(string $directory): void
     {
         if (is_file($directory)) {
+            // @codeCoverageIgnoreStart
             if (!is_dir($directory)) {
                 throw new PathExistsButIsNotDirectoryException($directory);
             }
 
             if (!is_writable($directory)) {
                 throw new WriteOperationFailedException($directory);
             }
+            // @codeCoverageIgnoreEnd
         }
 
         DirectoryUtil::createDirectory($directory);
@@ -303,13 +305,15 @@ private function documentAsString(DOMDocument $document): string
         $xml              = $document->saveXML();
 
         if ($xml === false) {
+            // @codeCoverageIgnoreStart
             $message = 'Unable to generate the XML';
 
             foreach (libxml_get_errors() as $error) {
                 $message .= PHP_EOL . $error->message;
             }
 
             throw new XmlException($message);
+            // @codeCoverageIgnoreEnd
         }
 
         libxml_clear_errors();