diff --git a/extension.json b/extension.json
index aced163..b70684b 100644
--- a/extension.json
+++ b/extension.json
@@ -29,6 +29,7 @@
 		"InfoAction": "PageImages\\PageImages::onInfoAction",
 		"ParserAfterTidy": "PageImages\\Hooks\\ParserFileProcessingHookHandlers::onParserAfterTidy",
 		"ParserModifyImageHTML": "PageImages\\Hooks\\ParserFileProcessingHookHandlers::onParserModifyImageHTML",
+		"ParserTestGlobals": "PageImages\\Hooks\\ParserFileProcessingHookHandlers::onParserTestGlobals",
 		"SearchResultProvideThumbnail": "PageImages\\Hooks\\SearchResultProvideThumbnailHookHandler::onSearchResultProvideThumbnail",
 		"SpecialMobileEditWatchlist::images": "PageImages\\PageImages::onSpecialMobileEditWatchlistImages"
 	},
diff --git a/includes/Hooks/ParserFileProcessingHookHandlers.php b/includes/Hooks/ParserFileProcessingHookHandlers.php
index 57c938e..2e563c4 100644
--- a/includes/Hooks/ParserFileProcessingHookHandlers.php
+++ b/includes/Hooks/ParserFileProcessingHookHandlers.php
@@ -66,6 +66,24 @@ class ParserFileProcessingHookHandlers {
 		$handler->doParserAfterTidy( $parser, $text );
 	}
 
+	/**
+	 * @param array &$globals
+	 */
+	public static function onParserTestGlobals( &$globals ) {
+		$globals += [
+			'wgPageImagesScores' => [
+				'width' => [
+					200 => 10,
+					1000 => 20
+				],
+				'position' => [],
+				'ratio' => [],
+				'galleryImageWidth' => []
+			],
+			'wgPageImagesLeadSectionOnly' => true
+		];
+	}
+
 	/**
 	 * @param Parser $parser
 	 * @param File $file
diff --git a/tests/parser/pageImagesParserTests.txt b/tests/parser/pageImagesParserTests.txt
new file mode 100644
index 0000000..1e3b753
--- /dev/null
+++ b/tests/parser/pageImagesParserTests.txt
@@ -0,0 +1,46 @@
+!! Version 2
+
+!! test
+PageImages with one image
+!! options
+property=page_image_free
+!! wikitext
+[[File:Foobar.jpg]]
+!! html
+<p><a href="/wiki/File:Foobar.jpg" class="image"><img alt="Foobar.jpg" src="http://example.com/images/3/3a/Foobar.jpg" decoding="async" width="1941" height="220" /></a>
+</p>
+property[page_image_free]=Foobar.jpg
+!! end
+
+!! test
+PageImages with two images
+!! options
+property=page_image_free
+!! wikitext
+[[File:Thumb.png]]
+[[File:Foobar.jpg]]
+!! html
+<p><a href="/wiki/File:Thumb.png" class="image"><img alt="Thumb.png" src="http://example.com/images/e/ea/Thumb.png" decoding="async" width="135" height="135" /></a>
+<a href="/wiki/File:Foobar.jpg" class="image"><img alt="Foobar.jpg" src="http://example.com/images/3/3a/Foobar.jpg" decoding="async" width="1941" height="220" /></a>
+</p>
+property[page_image_free]=Foobar.jpg
+!! end
+
+!! test
+PageImages with best excluded by wgPageImagesLeadSectionOnly
+!! options
+property=page_image_free
+!! wikitext
+[[File:Thumb.png]]
+
+== Section ==
+
+[[File:Foobar.jpg]]
+!! html
+<p><a href="/wiki/File:Thumb.png" class="image"><img alt="Thumb.png" src="http://example.com/images/e/ea/Thumb.png" decoding="async" width="135" height="135" /></a>
+</p>
+<h2><span class="mw-headline" id="Section">Section</span><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/index.php?title=Parser_test&amp;action=edit&amp;section=1" title="Edit section: Section">edit</a><span class="mw-editsection-bracket">]</span></span></h2>
+<p><a href="/wiki/File:Foobar.jpg" class="image"><img alt="Foobar.jpg" src="http://example.com/images/3/3a/Foobar.jpg" decoding="async" width="1941" height="220" /></a>
+</p>
+property[page_image_free]=Thumb.png
+!! end