diff --git a/_test/tests/inc/FulltextPageLookupTest.php b/_test/tests/inc/FulltextPageLookupTest.php
new file mode 100644
index 000000000..b0c98500b
--- /dev/null
+++ b/_test/tests/inc/FulltextPageLookupTest.php
@@ -0,0 +1,22 @@
+<?php
+
+// must be run within Dokuwiki
+if (!defined('DOKU_INC')) die();
+
+/**
+ * Test cases search only in a namespace or exclude a namespace
+ */
+class FulltextPageLookupTest extends DokuWikiTest {
+
+    public function test_inoutns() {
+        saveWikiText('test:page1', 'Some text', 'Test initialization');
+        idx_addPage('test:page1');
+        saveWikiText('ns:page2', 'Other text', 'Test initialization');
+        idx_addPage('ns:page2');
+
+        $this->assertEquals(['test:page1' => null, 'ns:page2' => null], ft_pageLookup('page'));
+        $this->assertEquals(['test:page1' => null], ft_pageLookup('page @test'));
+        $this->assertEquals(['ns:page2' => null], ft_pageLookup('page ^test'));
+    }
+
+}