Testplan is overwritten if plugin is missing

If a testplan with installed plugin is transmitted to another computer with different installed plugins it may happen that the testplan gets overwritten.

Reproduce by:

Create new testplan

Insert teststeps Delay/Dialog/Delay/Dialog/Delay

Save testplan

Open testplan in notepad and replace “DialogStep” with “XXX” + Save

Reopen testplan in OpenTap Editor.

Now only the Delay teststeps are shown and the log says:

13:07:08.919 Serializer XML Line 11: Unable to locate type ‘OpenTap.Plugins.BasicSteps.LX’. Are you missing a plugin?

Problem: If user now accidently presses Save or the AutoSave is executed then all missing plugins are lost in the testplan.

Better: Still show the missing teststeps in the testplan list (greyed out) but do not delete them from testplan if user simply has to install the missing plugin.