The Test window gives you a quick view of the records retrieved from your source data when your job runs. You can step through the records.
By default, the data in the view is sorted by source reference number. This number always starts with an "S," defines the default sort or order, and is used in formulas in place of the field name. Sorting field values helps considerably when there are many source data/user variables.
To sort a column in the source or target view, double-click the column header.
If your source data changes while using the running a test, you can refresh the view by clicking the Refresh button.
To Display the Test window
The Test Window displays a preview of the results of your job, row by row, without actually committing any rows to the target database.
To copy data from the Test window to the clipboard
Note: To copy data from another column, click the column header to highlight the entire column and press CTRL+C.
See also
Selecting a single data object
Tips and Techniques for testing