tests/test-dicthelpers.py

run-tests: report tests as failed when run-test raises an error

Before no message was returned to the main thread. No result was registered
and no new thread was started.
This does not happen when running normal. But when fiddling around with
the test infrastructure, this helps a lot.

from mercurial.dicthelpers import diff, join
import unittest
import silenttestrunner

class testdicthelpers(unittest.TestCase):
    def test_dicthelpers(self):
        # empty dicts
        self.assertEqual(diff({}, {}), {})
        self.assertEqual(join({}, {}), {})

        d1 = {}
        d1['a'] = 'foo'
        d1['b'] = 'bar'
        d1['c'] = 'baz'

        # same identity
        self.assertEqual(diff(d1, d1), {})
        self.assertEqual(join(d1, d1), {'a': ('foo', 'foo'),
                                        'b': ('bar', 'bar'),
                                        'c': ('baz', 'baz')})

        # vs empty
        self.assertEqual(diff(d1, {}), {'a': ('foo', None),
                                        'b': ('bar', None),
                                        'c': ('baz', None)})
        self.assertEqual(diff(d1, {}), {'a': ('foo', None),
                                        'b': ('bar', None),
                                        'c': ('baz', None)})

        d2 = {}
        d2['a'] = 'foo2'
        d2['b'] = 'bar'
        d2['d'] = 'quux'

        self.assertEqual(diff(d1, d2), {'a': ('foo', 'foo2'),
                                        'c': ('baz', None),
                                        'd': (None, 'quux')})
        self.assertEqual(join(d1, d2), {'a': ('foo', 'foo2'),
                                        'b': ('bar', 'bar'),
                                        'c': ('baz', None),
                                        'd': (None, 'quux')})

        # with default argument
        self.assertEqual(diff(d1, d2, 123), {'a': ('foo', 'foo2'),
                                             'c': ('baz', 123),
                                             'd': (123, 'quux')})
        self.assertEqual(join(d1, d2, 456), {'a': ('foo', 'foo2'),
                                             'b': ('bar', 'bar'),
                                             'c': ('baz', 456),
                                             'd': (456, 'quux')})

        # check that we compare against default
        self.assertEqual(diff(d1, d2, 'baz'), {'a': ('foo', 'foo2'),
                                               'd': ('baz', 'quux')})
        self.assertEqual(diff(d1, d2, 'quux'), {'a': ('foo', 'foo2'),
                                                'c': ('baz', 'quux')})

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