Mule School: DataMapper Testing Mappings and POJO inputs

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One aspect of Mule DataMapper that makes it a grate data integration tool is its ability to do mappings involving complex and different data structures (XML, Json, POJOs, CSV, Excel files and more). One feature that is really attractive is the possibility to test your mappings without the need to launch your Mule application, so that you can provide sample input data and preview what the result of the DataMapper will be.