mirror of
https://github.com/osm-search/Nominatim.git
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266 lines
8.9 KiB
Python
266 lines
8.9 KiB
Python
"""
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Tests for import name normalisation and variant generation.
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"""
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import pytest
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from icu import Transliterator
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import nominatim.tokenizer.token_analysis.generic as module
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from nominatim.errors import UsageError
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DEFAULT_NORMALIZATION = """ :: NFD ();
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'🜳' > ' ';
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[[:Nonspacing Mark:] [:Cf:]] >;
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:: lower ();
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[[:Punctuation:][:Space:]]+ > ' ';
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:: NFC ();
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"""
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DEFAULT_TRANSLITERATION = """ :: Latin ();
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'🜵' > ' ';
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"""
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def make_analyser(*variants, variant_only=False):
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rules = { 'analyzer': 'generic', 'variants': [{'words': variants}]}
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if variant_only:
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rules['mode'] = 'variant-only'
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config = module.configure(rules, DEFAULT_NORMALIZATION)
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trans = Transliterator.createFromRules("test_trans", DEFAULT_TRANSLITERATION)
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return module.create(trans, config)
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def get_normalized_variants(proc, name):
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norm = Transliterator.createFromRules("test_norm", DEFAULT_NORMALIZATION)
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return proc.get_variants_ascii(norm.transliterate(name).strip())
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def test_no_variants():
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rules = { 'analyzer': 'generic' }
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config = module.configure(rules, DEFAULT_NORMALIZATION)
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trans = Transliterator.createFromRules("test_trans", DEFAULT_TRANSLITERATION)
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proc = module.create(trans, config)
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assert get_normalized_variants(proc, '大德!') == ['dà dé']
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def test_variants_empty():
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proc = make_analyser('saint -> 🜵', 'street -> st')
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assert get_normalized_variants(proc, '🜵') == []
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assert get_normalized_variants(proc, '🜳') == []
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assert get_normalized_variants(proc, 'saint') == ['saint']
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VARIANT_TESTS = [
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(('~strasse,~straße -> str', '~weg => weg'), "hallo", {'hallo'}),
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(('weg => wg',), "holzweg", {'holzweg'}),
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(('weg -> wg',), "holzweg", {'holzweg'}),
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(('~weg => weg',), "holzweg", {'holz weg', 'holzweg'}),
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(('~weg -> weg',), "holzweg", {'holz weg', 'holzweg'}),
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(('~weg => w',), "holzweg", {'holz w', 'holzw'}),
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(('~weg -> w',), "holzweg", {'holz weg', 'holzweg', 'holz w', 'holzw'}),
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(('~weg => weg',), "Meier Weg", {'meier weg', 'meierweg'}),
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(('~weg -> weg',), "Meier Weg", {'meier weg', 'meierweg'}),
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(('~weg => w',), "Meier Weg", {'meier w', 'meierw'}),
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(('~weg -> w',), "Meier Weg", {'meier weg', 'meierweg', 'meier w', 'meierw'}),
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(('weg => wg',), "Meier Weg", {'meier wg'}),
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(('weg -> wg',), "Meier Weg", {'meier weg', 'meier wg'}),
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(('~strasse,~straße -> str', '~weg => weg'), "Bauwegstraße",
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{'bauweg straße', 'bauweg str', 'bauwegstraße', 'bauwegstr'}),
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(('am => a', 'bach => b'), "am bach", {'a b'}),
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(('am => a', '~bach => b'), "am bach", {'a b'}),
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(('am -> a', '~bach -> b'), "am bach", {'am bach', 'a bach', 'am b', 'a b'}),
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(('am -> a', '~bach -> b'), "ambach", {'ambach', 'am bach', 'amb', 'am b'}),
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(('saint -> s,st', 'street -> st'), "Saint Johns Street",
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{'saint johns street', 's johns street', 'st johns street',
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'saint johns st', 's johns st', 'st johns st'}),
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(('river$ -> r',), "River Bend Road", {'river bend road'}),
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(('river$ -> r',), "Bent River", {'bent river', 'bent r'}),
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(('^north => n',), "North 2nd Street", {'n 2nd street'}),
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(('^north => n',), "Airport North", {'airport north'}),
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(('am -> a',), "am am am am am am am am", {'am am am am am am am am'}),
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(('am => a',), "am am am am am am am am", {'a a a a a a a a'})
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]
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@pytest.mark.parametrize("rules,name,variants", VARIANT_TESTS)
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def test_variants(rules, name, variants):
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proc = make_analyser(*rules)
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result = get_normalized_variants(proc, name)
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assert len(result) == len(set(result))
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assert set(get_normalized_variants(proc, name)) == variants
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VARIANT_ONLY_TESTS = [
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(('weg => wg',), "hallo", set()),
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(('weg => wg',), "Meier Weg", {'meier wg'}),
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(('weg -> wg',), "Meier Weg", {'meier wg'}),
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]
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@pytest.mark.parametrize("rules,name,variants", VARIANT_ONLY_TESTS)
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def test_variants_only(rules, name, variants):
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proc = make_analyser(*rules, variant_only=True)
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result = get_normalized_variants(proc, name)
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assert len(result) == len(set(result))
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assert set(get_normalized_variants(proc, name)) == variants
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class TestGetReplacements:
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@staticmethod
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def configure_rules(*variants):
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rules = { 'analyzer': 'generic', 'variants': [{'words': variants}]}
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return module.configure(rules, DEFAULT_NORMALIZATION)
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def get_replacements(self, *variants):
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config = self.configure_rules(*variants)
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return sorted((k, sorted(v)) for k,v in config['replacements'])
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@pytest.mark.parametrize("variant", ['foo > bar', 'foo -> bar -> bar',
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'~foo~ -> bar', 'fo~ o -> bar'])
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def test_invalid_variant_description(self, variant):
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with pytest.raises(UsageError):
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self.configure_rules(variant)
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@pytest.mark.parametrize("rule", ["!!! -> bar", "bar => !!!"])
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def test_ignore_unnormalizable_terms(self, rule):
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repl = self.get_replacements(rule)
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assert repl == []
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def test_add_full(self):
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repl = self.get_replacements("foo -> bar")
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assert repl == [(' foo ', [' bar', ' foo'])]
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def test_replace_full(self):
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repl = self.get_replacements("foo => bar")
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assert repl == [(' foo ', [' bar'])]
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def test_add_suffix_no_decompose(self):
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repl = self.get_replacements("~berg |-> bg")
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assert repl == [(' berg ', [' berg', ' bg']),
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('berg ', ['berg', 'bg'])]
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def test_replace_suffix_no_decompose(self):
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repl = self.get_replacements("~berg |=> bg")
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assert repl == [(' berg ', [' bg']),('berg ', ['bg'])]
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def test_add_suffix_decompose(self):
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repl = self.get_replacements("~berg -> bg")
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assert repl == [(' berg ', [' berg', ' bg', 'berg', 'bg']),
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('berg ', [' berg', ' bg', 'berg', 'bg'])]
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def test_replace_suffix_decompose(self):
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repl = self.get_replacements("~berg => bg")
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assert repl == [(' berg ', [' bg', 'bg']),
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('berg ', [' bg', 'bg'])]
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def test_add_prefix_no_compose(self):
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repl = self.get_replacements("hinter~ |-> hnt")
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assert repl == [(' hinter', [' hinter', ' hnt']),
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(' hinter ', [' hinter', ' hnt'])]
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def test_replace_prefix_no_compose(self):
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repl = self.get_replacements("hinter~ |=> hnt")
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assert repl == [(' hinter', [' hnt']), (' hinter ', [' hnt'])]
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def test_add_prefix_compose(self):
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repl = self.get_replacements("hinter~-> h")
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assert repl == [(' hinter', [' h', ' h ', ' hinter', ' hinter ']),
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(' hinter ', [' h', ' h', ' hinter', ' hinter'])]
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def test_replace_prefix_compose(self):
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repl = self.get_replacements("hinter~=> h")
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assert repl == [(' hinter', [' h', ' h ']),
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(' hinter ', [' h', ' h'])]
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def test_add_beginning_only(self):
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repl = self.get_replacements("^Premier -> Pr")
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assert repl == [('^ premier ', ['^ pr', '^ premier'])]
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def test_replace_beginning_only(self):
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repl = self.get_replacements("^Premier => Pr")
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assert repl == [('^ premier ', ['^ pr'])]
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def test_add_final_only(self):
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repl = self.get_replacements("road$ -> rd")
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assert repl == [(' road ^', [' rd ^', ' road ^'])]
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def test_replace_final_only(self):
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repl = self.get_replacements("road$ => rd")
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assert repl == [(' road ^', [' rd ^'])]
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def test_decompose_only(self):
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repl = self.get_replacements("~foo -> foo")
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assert repl == [(' foo ', [' foo', 'foo']),
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('foo ', [' foo', 'foo'])]
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def test_add_suffix_decompose_end_only(self):
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repl = self.get_replacements("~berg |-> bg", "~berg$ -> bg")
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assert repl == [(' berg ', [' berg', ' bg']),
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(' berg ^', [' berg ^', ' bg ^', 'berg ^', 'bg ^']),
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('berg ', ['berg', 'bg']),
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('berg ^', [' berg ^', ' bg ^', 'berg ^', 'bg ^'])]
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def test_replace_suffix_decompose_end_only(self):
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repl = self.get_replacements("~berg |=> bg", "~berg$ => bg")
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assert repl == [(' berg ', [' bg']),
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(' berg ^', [' bg ^', 'bg ^']),
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('berg ', ['bg']),
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('berg ^', [' bg ^', 'bg ^'])]
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@pytest.mark.parametrize('rule', ["~berg,~burg -> bg",
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"~berg, ~burg -> bg",
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"~berg,,~burg -> bg"])
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def test_add_multiple_suffix(self, rule):
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repl = self.get_replacements(rule)
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assert repl == [(' berg ', [' berg', ' bg', 'berg', 'bg']),
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(' burg ', [' bg', ' burg', 'bg', 'burg']),
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('berg ', [' berg', ' bg', 'berg', 'bg']),
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('burg ', [' bg', ' burg', 'bg', 'burg'])]
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