Improvements to code

tests/unit/DocBlock/StandardTagFactoryTest.php

@@ -332,7 +332,7 @@ class StandardTagFactoryTest extends TestCase
         $this->assertSame('return', $tag->getName());
     }
 
-    public function testInvalidTagIsReturnedOnFailure()
+    public function testInvalidTagIsReturnedOnFailure() : void
     {
         $tagFactory = new StandardTagFactory(m::mock(FqsenResolver::class));
 

tests/unit/DocBlock/Tags/InvalidTagTest.php

@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+namespace phpDocumentor\Reflection\DocBlock\Tags;
+
+use Exception;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @coversDefaultClass \phpDocumentor\Reflection\DocBlock\Tags\InvalidTag
+ * @covers ::<private>
+ * @covers ::getName
+ * @covers ::render
+ * @covers ::getException
+ * @covers ::create
+ */
+final class InvalidTagTest extends TestCase
+{
+    public function testCreationWithoutError() : void
+    {
+        $tag = InvalidTag::create('Body', 'name');
+
+        self::assertSame('name', $tag->getName());
+        self::assertSame('@name Body', $tag->render());
+        self::assertNull($tag->getException());
+    }
+
+    /**
+     * @covers ::withError
+     */
+    public function testCreationWithError() : void
+    {
+        $exception = new Exception();
+        $tag       = InvalidTag::create('Body', 'name')->withError($exception);
+
+        self::assertSame('name', $tag->getName());
+        self::assertSame('@name Body', $tag->render());
+        self::assertSame($exception, $tag->getException());
+    }
+}