Merge pull request #16 from 8fold/custom-properties-in-doctype

Feature: Concatenate

Author: joshbruce

src/Concatenate.php

@@ -0,0 +1,35 @@
+<?php
+declare(strict_types=1);
+
+namespace Eightfold\XMLBuilder;
+
+use Eightfold\XMLBuilder\Contracts\Buildable;
+
+use Stringable;
+
+use Eightfold\XMLBuilder\Implementations\Buildable as BuildableImp;
+
+class Concatenate implements Buildable
+{
+    use BuildableImp;
+
+    /**
+     * @var array<string|Stringable>
+     */
+    private array $content = [];
+
+    public static function create(string|Stringable ...$content): self
+    {
+        return new self(...$content);
+    }
+
+    final private function __construct(string|Stringable ...$content)
+    {
+        $this->content = $content;
+    }
+
+    public function __toString(): string
+    {
+        return implode('', $this->content);
+    }
+}

src/Implementations/Contentable.php

@@ -14,7 +14,7 @@ trait Contentable
     private array $content = [];
 
     /**
-     * @param array<string|String> $content
+     * @param array<string|Stringable> $content
      */
     public static function __callStatic(
         string $name,

tests/ConcatenateBaselineTest.php

@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Eightfold\XMLBuilder\Tests;
+
+use PHPUnit\Framework\TestCase;
+
+use Eightfold\XMLBuilder\Concatenate;
+
+use Eightfold\XMLBuilder\Element;
+
+class ConcatenateBaselineTest extends TestCase
+{
+    /**
+     * @test
+     */
+    public function concatenate_expected_content(): void
+    {
+        $expected = '<p>Hello, World!</p> Testing additional string.';
+
+        $result = (string) Concatenate::create(
+            Element::p('Hello, World!'),
+            ' Testing additional string.'
+        );
+
+        $this->assertSame(
+            $expected,
+            $result
+        );
+    }
+}