added full test suite for:

* code blocks
* paragraphs
* horizontal rules
* references
* tables

tests/CodeBlocksTest.php

@@ -0,0 +1,46 @@
+<?php declare(strict_types=1);
+
+use PHPUnit\Framework\TestCase;
+
+final class CodeBlocksTest extends TestCase {
+	public function testCodeblocksParseCorrectly() : void {
+		$source = "
+```
+	this is a code block
+```
+		";
+		$target = "
+<pre>
+	<code>
+		this is a code block
+	</code>
+</pre>
+		";
+
+		[$source, $result] = createTest($source, $target);
+		$this->assertEquals($source, $result);
+	}
+	
+	public function testLanguageAnnotationParsesCorrectly() : void {
+		$source = "
+```php
+	public function testLanguageAnnotationParsesCorrectly() : bool {
+		return true;
+	}
+	
+```
+		";
+		$target = "
+<pre data-lang=\"php\">
+	<code>
+		public function testLanguageAnnotationParsesCorrectly() : bool {
+			return true;
+		}
+	</code>
+</pre>
+		";
+
+		[$source, $result] = createTest($source, $target);
+		$this->assertEquals($source, $result);
+	}
+}

tests/GenericBlocksTest.php

@@ -0,0 +1,47 @@
+<?php declare(strict_types=1);
+
+use PHPUnit\Framework\TestCase;
+
+final class GenericBlocksTest extends TestCase {
+	public function testParagraphParsesCorrectly() : void {
+		$source = "
+this is a paragraph
+		";
+		$target = "
+<p>
+	this is a paragraph
+</p>
+		";
+
+		[$source, $result] = createTest($source, $target);
+		$this->assertEquals($source, $result);
+	}
+
+	public function testBlockquotesParseCorrectly() : void {
+		$source = "
+> this is
+>
+> a blockquote
+
+";
+		$target = "
+<blockquote>
+	this is <br><br>
+	a blockquote<br>
+</blockquote>
+		";
+
+		[$source, $result] = createTest($source, $target);
+		$this->assertEquals($source, $result);
+	}
+
+	public function testHorizontalRuleParsesCorrectly() : void {
+		$source = "
+---
+		";
+		$target = "<hr>";
+
+		[$source, $result] = createTest($source, $target);
+		$this->assertEquals($source, $result);
+	}
+}

tests/ReferencesTest.php

@@ -0,0 +1,38 @@
+<?php declare(strict_types=1);
+
+use PHPUnit\Framework\TestCase;
+
+final class ReferencesTest extends TestCase {
+	public function testSimpleReferencesAreResolvedCorrectly() : void {
+		$source = "
+this text uses [a simple reference][1]
+
+[1]: https://massivedynamic.eu
+		";
+		$target = "
+<p>
+	this text uses <a href=\"https://massivedynamic.eu\">a simple reference</a>
+</p>
+		";
+
+		[$source, $result] = createTest($source, $target);
+		$this->assertEquals($source, $result);
+	}
+	
+	public function testNamedReferencesAreResolvedCorrectly() : void {
+		$source = "
+this text uses [a simple reference][REF] and does it [twice][REF]
+
+[REF]: https://massivedynamic.eu
+		";
+		$target = "
+<p>
+	this text uses <a href=\"https://massivedynamic.eu\">a simple reference</a>
+	and does it <a href=\"https://massivedynamic.eu\">twice</a>
+</p>
+		";
+
+		[$source, $result] = createTest($source, $target);
+		$this->assertEquals($source, $result);
+	}
+}

tests/TablesTest.php

@@ -0,0 +1,37 @@
+<?php declare(strict_types=1);
+
+use PHPUnit\Framework\TestCase;
+
+final class TablesTest extends TestCase {
+	public function testTableParsesCorrectly() : void {
+		$source = "
+| Product | Amount | Price  |
+|:--------|:------:|-------:|
+| Part A  | 5      | 20,00€ |
+| Editor  | 100    | 39,99€ |
+
+		";
+		$target = "
+<table>
+			<tr>
+				<th style=\"text-align: left\">Product</th>
+				<th style=\"text-align: center\">Amount</th>
+				<th style=\"text-align: right\">Price</th>
+			</tr>
+			<tr>
+				<td style=\"text-align: left\">Part A</td>
+				<td style=\"text-align: center\">5</td>
+				<td style=\"text-align: right\">20,00&euro;</td>
+			</tr>
+			<tr>
+				<td style=\"text-align: left\">Editor</td>
+				<td style=\"text-align: center\">100</td>
+				<td style=\"text-align: right\">39,99&euro;</td>
+			</tr>
+</table>		
+		";
+
+		[$source, $result] = createTest($source, $target);
+		$this->assertEquals($source, $result);
+	}
+}