Provide a simple test

tests/end-to-end/tests-xml-dataprovider.phpt

@@ -0,0 +1,48 @@
+--TEST--
+phpunit --list-tests-xml ../../_files/DataProviderTest.php
+--FILE--
+<?php declare(strict_types=1);
+$xml = tempnam(sys_get_temp_dir(), __FILE__);
+file_put_contents($xml, <<<XML
+<?xml version="1.0"?>
+<tests>
+  <!-- This class exists -->
+  <testCaseClass name="PHPUnit\TestFixture\DataProviderTest">
+    <testCaseMethod name="testAdd" groups="default" dataSet="#0"/>
+    <!-- This method does not exist -->
+    <testCaseMethod name="methodDoesNotExist"/>
+    <!-- name attribute missing -->
+    <testCaseMethod />
+  </testCaseClass>
+
+  <!-- name attribute missing -->
+  <testCaseClass>
+    <testCaseMethod name="testAdd" groups="default" dataSet="#0"/>
+  </testCaseClass>
+
+  <ignoredTag/>
+
+  <testCaseClass name="Class\Does\Not\Exist">
+    <testCaseMethod name="methodAlsoDoesNotExist"/>
+  </testCaseClass>
+</tests>
+XML
+);
+
+$_SERVER['argv'][1] = '--no-configuration';
+$_SERVER['argv'][2] = '--tests-xml';
+$_SERVER['argv'][3] = $xml;
+$_SERVER['argv'][4] = __DIR__ . '/../_files/DataProviderTest.php';
+
+require __DIR__ . '/../bootstrap.php';
+PHPUnit\TextUI\Command::main(false);
+
+unlink($xml);
+--EXPECTF--
+PHPUnit %s by Sebastian Bergmann and contributors.
+
+.                                                                   1 / 1 (100%)
+
+Time: %s, Memory: %s
+
+OK (1 test, 1 assertion)