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add option to set default replacement field value

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Missing or undefined keywords will now be replaced with the value
set for 'keywords-default'. The default is Python's 'None', which
is equivalent to setting this option to JSON's 'null'.
This commit is contained in:
Mike Fährmann
2018-02-21 23:18:21 +01:00
parent ac3da8115e
commit e1e0668ca8
3 changed files with 27 additions and 8 deletions
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13
test/test_util.py
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@@ -186,10 +186,17 @@ class TestFormatter(unittest.TestCase):
self._run_test("{missing}", replacement)
self._run_test("{missing.attr}", replacement)
self._run_test("{missing[key]}", replacement)
self._run_test("{missing?a/b/}", replacement)
self._run_test("{missing:?a//}", "")
def _run_test(self, format_string, result):
formatter = util.Formatter()
def test_missing_custom_default(self):
replacement = default = "foobar"
self._run_test("{missing}" , replacement, default)
self._run_test("{missing.attr}", replacement, default)
self._run_test("{missing[key]}", replacement, default)
self._run_test("{missing:?a//}", "a" + default, default)
def _run_test(self, format_string, result, default=None):
formatter = util.Formatter(default)
output = formatter.vformat(format_string, self.kwdict)
self.assertEqual(output, result, format_string)