view tests/test-mdiff.py @ 35991:04304b779df1

tests: raise a better error when patterns are wrongly formatted

It is fairly easy to make mistakes when merging conflict in the pattern file.
A common mistake is to forget adding an extra trailing comma changing the
length of the tuple.

We now detect such error and raise a better error message that helps to find
it.

from __future__ import absolute_import
from __future__ import print_function

import unittest

from mercurial import (
    mdiff,
)

class splitnewlinesTests(unittest.TestCase):

    def test_splitnewlines(self):
        cases = {'a\nb\nc\n': ['a\n', 'b\n', 'c\n'],
                 'a\nb\nc': ['a\n', 'b\n', 'c'],
                 'a\nb\nc\n\n': ['a\n', 'b\n', 'c\n', '\n'],
                 '': [],
                 'abcabc': ['abcabc'],
                 }
        for inp, want in cases.iteritems():
            self.assertEqual(mdiff.splitnewlines(inp), want)

if __name__ == '__main__':
    import silenttestrunner
    silenttestrunner.main(__name__)