Jul 30, 2010 · The free Python book Dive Into Python has a chapter on unit testing that you might find useful. If you follow modern practices you should probably write the tests while you are …

Nov 12, 2008 · 145 If I'm writing unit tests in Python (using the unittest module), is it possible to output data from a failed test, so I can examine it to help deduce what caused the error?

How does one go about testing queries in SQLAlchemy? For example suppose we have this models.py from sqlalchemy import ( Column, Integer, String, ) from sqlalchemy.ext.

Jan 25, 2017 · How do I unit test Python dataframes? I have functions that have an input and output as dataframes. Almost every function I have does this. Now if I want to unit test this …

Sep 25, 2008 · Unit testing with unittest would be preferred, but if you would like a quick fix, we can catch the exception, assign it to a variable, and see if that variable is an instance of that …

testscenarios provides clean dependency injection for python unittest style tests. This can be used for interface testing (testing many implementations via a single test suite) or for classic …

Learn how to mock functions in Python using the unittest.mock library for effective unit testing on Stack Overflow.

Jul 9, 2012 · Python being a dynamic language, mocking and monkey pathing are easy and powerful tools for writing unit test. In particular, have a look at the excellent Mock module.

My current Java/Spark Unit Test approach works (detailed here) by instantiating a SparkContext using "local" and running unit tests using JUnit. The code has to be organized to do I/O in one …

41 I heard Unit Testing is a great method to keep code working correctly. The unit testing usually puts a simple input to a function, and check its simple output. But how do I test a UI? My …