---
title: "Lasernet Module Tester"
slug: "lasernet-module-tester-10"
description: "An introduction to the module tester tool."
updated: 2026-10-07T10:24:21Z
published: 2026-10-07T10:24:21Z
canonical: "kb.lasernetgroup.com/lasernet-module-tester-10"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://kb.lasernetgroup.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Lasernet Module Tester

**Applies to:** Lasernet Core 10

Run and verify module settings.

Right click on any module in the configuration and select **Test…** to run the Lasernet Module Tester.

![](https://cdn.document360.io/c831ef63-c6b3-48ee-b443-3e33644e4e2e/Images/Setting/ln10-lasernet-module-tester-10-image-01.png)

The Lasernet Module Tester is a built-in application that can process incoming jobs and run the module similarly to the Lasernet Job Engine. Each action added to a module can be inspected one by one, and you can preview the contents of the output and all the log messages as you step through all the actions.

![](https://cdn.document360.io/c831ef63-c6b3-48ee-b443-3e33644e4e2e/Images/Setting/ln10-lasernet-module-tester-10-image-02.png)

## Menu Bar (1)

![](https://cdn.document360.io/c831ef63-c6b3-48ee-b443-3e33644e4e2e/Images/Setting/ln10-lasernet-module-tester-10-image-03.png)

From the **File** menu you can **Save** all the settings or **Close** the Lasernet Module Tester. From the **View** menu you can activate additional window views for JobInfos and Logger windows and customize the log events in the Logger window.

## Tool Bar (2)

![](https://cdn.document360.io/c831ef63-c6b3-48ee-b443-3e33644e4e2e/Images/Setting/ln10-lasernet-module-tester-10-image-04.png)

Select the **Test** button in the tool bar to show the contents of input- and output jobs, test buttons and action list. The **Setup**, **Scheduling**, **Combining** and **Connections** are standard buttons present in most modules and are used to configure job processing. The list of functions in the tool bar varies from module to module, depending on features and functions.

## Action Bar (3)

The Lasernet Module Tester has two different action bars depending on the type of module. An action bar for input modules, where the incoming test job(s) are retrieved, removed and processed directly from the input, which the input module is connected to. Job Processing is started when you click the **Start JobEngine** button.

![](https://cdn.document360.io/c831ef63-c6b3-48ee-b443-3e33644e4e2e/Images/Setting/ln10-lasernet-module-tester-10-image-05.png)

Another action bar is present for engines and output modules. Incoming test job(s) are selected from the **Select Grab File(s)** dialog and the **Run Module** button is used to process all settings and actions added to the module.

![](https://cdn.document360.io/c831ef63-c6b3-48ee-b443-3e33644e4e2e/Images/Setting/ln10-lasernet-module-tester-10-image-06.png)

Click the **Clear** button to clear the logger window (if it is active). Use **Previous** and **Next** to step through the modifier and JobInfo actions one by one. Click the **Full** button to see changes from all actions.

For output modules, the result of the test will be saved, posted or emailed depending on the module type, directly to the target defined in the settings of the module, similar to the Lasernet Core Service.

## Left Window (4)

![](https://cdn.document360.io/c831ef63-c6b3-48ee-b443-3e33644e4e2e/Images/Setting/ln10-lasernet-module-tester-10-image-07.png)

The left preview window shows the contents of the grab data used for the test. A wide range of known preview formats are supported. None of the supported formats can be previewed in HEX mode or as text. Only engines and output modules can open grab files.

## Right Window (5)

![](https://cdn.document360.io/c831ef63-c6b3-48ee-b443-3e33644e4e2e/Images/Setting/ln10-lasernet-module-tester-10-image-08.png)

The right preview window shows the results of the module test. The contents will change as you step through each action added to module.

For more detailed information about JobInfo values assigned to the job, select View > JobInfos.

## Actions (6)

![](https://cdn.document360.io/c831ef63-c6b3-48ee-b443-3e33644e4e2e/Images/Setting/ln10-lasernet-module-tester-10-image-09.png)

In the **Actions** list you can **Add** and **Edit** the modifiers and JobInfos assigned to the module or change the processing order by selecting an action and clicking the **Move up** and **Move down** buttons. Or you can click on any action in the list view, to inspect the result of all actions before the selected action.

Click the **Remove** button to remove one or more actions from the action list.

Click **View Pseudo code** for a quick review of all actions, including criteria in text mode. Pseudo code is for reading only and cannot be edited.

When you have successfully tested the module, click **File > Save** to store all settings and actions added to the module or **File > Close** to ignore the current settings.

Changes to actions will require a rerun of the test to see the results.

## Logger (7)

![](https://cdn.document360.io/c831ef63-c6b3-48ee-b443-3e33644e4e2e/Images/Setting/ln10-lasernet-module-tester-10-image-10.png)

If the **Log** pane is displayed, you can view the full list of logs created for the tested module. Select **View > Log Events** to select which types of log event you want to view in test mode.

## User rights

In **Test** mode you must start the Lasernet Developer, with similar user rights as the Lasernet Core Service, to access your database connections, file shares, and so on, which you have defined in the module or in actions added to the module.

To run the Web Server Input module, you must start the Lasernet Developer with **Admin** rights or you will receive a “HttpAddUrl failed with error code: 5”, when you click **Start JobEngine**.