thisisnic commented on a change in pull request #11827:
URL: https://github.com/apache/arrow/pull/11827#discussion_r763761061
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File path: docs/source/developers/guide/step_by_step/testing.rst
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@@ -29,3 +29,79 @@
***********
Testing 🧪
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+
+In Arrow we use unit tests to ensure code quality, to help
+others understand our code better and to make the process
+of review easier.
Review comment:
If we're going to lay out all the important reasons for unit tests here,
I think we should mention something about the fact that part of the reason for
testing is that we want to make sure that code works across different
platforms/operating systems etc.
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