Add tests

Author: sebastianbergmann

tests/unit/Util/PHP/ResultTest.php

@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of PHPUnit.
+ *
+ * (c) Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PHPUnit\Util\PHP;
+
+use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\Attributes\Small;
+use PHPUnit\Framework\TestCase;
+
+#[CoversClass(Result::class)]
+#[Small]
+final class ResultTest extends TestCase
+{
+    public function testHasOutputFromStdout(): void
+    {
+        $this->assertSame('stdout', $this->fixture()->stdout());
+    }
+
+    public function testHasOutputFromStderr(): void
+    {
+        $this->assertSame('stderr', $this->fixture()->stderr());
+    }
+
+    private function fixture(): Result
+    {
+        return new Result('stdout', 'stderr');
+    }
+}