Add the test for hydephp/framework#161

tests/Unit/HasDynamicTitleTest.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace Tests\Unit;
+
+use Hyde\Framework\Models\MarkdownDocument;
+use Tests\TestCase;
+
+/**
+ * Class HasDynamicTitleTest.
+ *
+ * @covers \Hyde\Framework\Models\HasDynamicTitle
+ */
+class HasDynamicTitleTest extends TestCase
+{
+    protected array $matter;
+
+    // Test it can find title from front matter.
+	public function testFindTitleFromFrontMatter()
+	{
+		$document = new MarkdownDocument([
+			'title' => 'My Title',
+		], body: '');
+
+        $this->assertEquals('My Title', $document->findTitleForDocument());
+	}
+
+	// Test it can find title from H1 tag.
+    public function testFindTitleFromH1Tag()
+    {
+        $document = new MarkdownDocument([], body: '# My Title');
+
+        $this->assertEquals('My Title', $document->findTitleForDocument());
+    }
+
+	// Test it can find title from slug.
+    public function testFindTitleFromSlug()
+    {
+        $document = new MarkdownDocument([], body: '', slug: 'my-title');
+        $this->assertEquals('My Title', $document->findTitleForDocument());
+    }
+
+}