diff --git a/api/src/Etemplate/Widget/test/TextboxTest.php b/api/src/Etemplate/Widget/test/TextboxTest.php
new file mode 100644
index 0000000000..eea83987a7
--- /dev/null
+++ b/api/src/Etemplate/Widget/test/TextboxTest.php
@@ -0,0 +1,120 @@
+<?php
+
+/**
+ * Test for textbox
+ *
+ * @link http://www.egroupware.org
+ * @author Nathan Gray
+ * @package api
+ * @subpackage etemplate
+ * @copyright (c) 2017  Nathan Gray
+ * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+ */
+
+namespace EGroupware\Api\Etemplate\Widget;
+
+require_once realpath(__DIR__.'/../../test/WidgetBaseTest.php');
+
+use EGroupware\Api\Etemplate;
+
+/**
+ * Description of TextboxTest
+ *
+ * @author nathan
+ */
+class TextboxTest extends \EGroupware\Api\Etemplate\WidgetBaseTest
+{
+
+	const TEST_TEMPLATE = 'api.textbox_test';
+	
+	/**
+	 * Test the widget's basic functionallity - we put data in, it comes back
+	 */
+	public function testBasic()
+	{
+		// Instanciate the template
+		$etemplate = new Etemplate();
+		$etemplate->read(static::TEST_TEMPLATE, 'test');
+
+		// Exec
+		$content = array(
+			'widget'            =>	'',
+			'widget_readonly'   =>	''
+		);
+		$result = $this->mockedRoundTrip($etemplate, $content, array(), array());
+
+		// Check
+		$this->assertEquals(array('widget' => ''), $result);
+
+		$content = array(
+			'widget'            =>	'Hello',
+			'widget_readonly'   =>	'World'
+		);
+		$result = $this->mockedRoundTrip($etemplate, $content, array(), array());
+
+		// Check only the editable widget gives a value
+		$this->assertEquals(array('widget' => 'Hello'), $result);
+	}
+
+	/**
+	 * Test that the widget does not return a value if readonly
+	 */
+	public function testReadonly()
+	{
+		// Instanciate the template
+		$etemplate = new Etemplate();
+		$etemplate->read(static::TEST_TEMPLATE, 'test');
+
+		// Exec
+		$content = array(
+			'widget'            =>	'Hello',
+			'widget_readonly'   =>	'World'
+		);
+		$result = $this->mockedRoundTrip($etemplate, $content, array(), array('widget' => true));
+
+		// Check
+		$this->assertEquals(array(), $result);
+	}
+
+	/**
+	 * Test that an edited read-only widget does not return a value, even if the
+	 * client side gives one, which should be an unusual occurrence.
+	 */
+	public function testEditedReadonly()
+	{
+		// Instanciate the template
+		$etemplate = new Etemplate();
+		$etemplate->read(static::TEST_TEMPLATE, 'test');
+
+		// Exec
+		$content = array(
+			'widget'            =>	'Hello',
+			'widget_readonly'   =>	'World'
+		);
+		$result = $this->mockedExec($etemplate, $content, array(), array('widget' => true), array());
+
+		// Check for the load
+		$data = array();
+		foreach($result as $command)
+		{
+			if($command['type'] == 'et2_load')
+			{
+				$data = $command['data'];
+				break;
+			}
+		}
+
+		// 'Edit' the data client side
+		$data['data']['content'] = array(
+			'widget' => 'Goodnight',
+			'widget_readonly' => 'Moon'
+		);
+
+		Etemplate::ajax_process_content($data['data']['etemplate_exec_id'], $data['data']['content'], false);
+
+		$content = static::$mocked_exec_result;
+		static::$mocked_exec_result = array();
+
+		$this->assertEquals(array(), $content);
+	}
+}
diff --git a/api/templates/test/textbox_test.xet b/api/templates/test/textbox_test.xet
new file mode 100644
index 0000000000..9dc327fb9c
--- /dev/null
+++ b/api/templates/test/textbox_test.xet
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE overlay PUBLIC "-//EGroupware GmbH//eTemplate 2//EN" "http://www.egroupware.org/etemplate2.dtd">
+<!-- This template is used in automated testing -->
+<overlay>
+	<template id="api.textbox_test" template="" lang="" group="0" version="16.1">
+		<textbox id="widget"/>
+		<textbox id="widget_readonly" readonly="true"/>
+	</template>
+</overlay>
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