Set or Assert an Empty String

Definition

This document describes how to

• set a String attribute value or microflow parameter to EMPTY (or null in Java terms)
• Assert that the String value is EMPTY.

MTA has the option to leave String Textboxes empty, but this results in a zero-length String (''), not in EMPTY.

Although the option to set a String to, or Assert EMPTY, will be added in a future MTA release, below is the current workaround.

Set empty String

• First, you need to import the MTA Commons module.
• Add a Microflow Teststep that calls MenditectMtaCommons.VAR_Integer
• Select Fixed value and leave the value empty. This microflow will return an Integer with value EMPTY.
• Add a Microflow Teststep that calls MenditectMtaCommons.VAR_String
• Select Teststep and select the previous Teststep. This microflow will return a String with value EMPTY.
• Add the Teststep where you want to set a String to EMPTY.
• When asked to fill the value or microflow parameter, select Teststep and select the previous Teststep.

Assert empty String

• First, you need to import the MTA Commons module.
• Add a Microflow Teststep that calls MenditectMtaCommons.VAR_Integer
• Select Fixed value and leave the value empty. This microflow will return an Integer with value EMPTY.
• Add a Microflow Teststep that calls MenditectMtaCommons.VAR_String
• Select Teststep and select the previous Teststep. This microflow will return a String with value EMPTY.
• Add a Microflow Teststep that calls MenditectMtaCommons.FTN_EqualsString
• For the first parameter, select Teststep and select the Teststep that provides the value that you want to check.
• For the second parameter, select Teststep and select the previous Teststep.
• Add an Assert that verifies that the return value is true.