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I have a program where the input is a complex file and the output is a changed file but in the same format. These files are of points and connections in 3D models. I need to be able to unit test this program without checking files line by line myself for equality. Something like a version control 'diff' would be ideal in terms of viewing differences but I don't know of a program or framework that could automate this process. Any suggestions?

razlebe
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Mark
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2 Answers2

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If you're a Perl person you might want to take a look at Test::Files that does file comparisons with a diff-style diagnostic output.

adrianh
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You can use difflib http://docs.python.org/library/difflib.html

Related: Comparing two .txt files using difflib in Python

Community
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Unapiedra
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