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One of the biggest and most impactful changes would be support for detailed unit testing for a canvas - this could work much like it does in Visual Studio:
In order to fully test a workflow - you need 3 things:
Ability to replace the inputs with test data
Ability to inspect any exceptions or errors thrown by the canvas
Ability to compare the results to expectation
To do this:
Create a second tab behind a canvas which is a Testing view of the canvas which allows you to define tests. Each test contains values for one or more of the inputs; expected exceptions / errors; and expected outputs
Alteryx then needs to run each of these tests one by 1 - and for each test:
Replace the data inputs with the defined test input.
Check for, and trap errors generated by Alteryx
Compare the output
Generate a test score (pass or fail against each test case)
This would allow:
Each workflow / canvas to carry its own test cases
Automated regression testing overnight for every tool and canvas
For this canvas - there are 2 inputs; and one output.
Each test case would define:
Test rows to push into input 1
Test rows to push into input 2
any errors we're expecting
The expected output of the browse tool
This would make Alteryx SUPER robust and allow people to really test every canvas in an incredibly tight way!