mirror of
https://github.com/osm-search/Nominatim.git
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277 lines
8.7 KiB
Python
277 lines
8.7 KiB
Python
# SPDX-License-Identifier: GPL-2.0-only
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#
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# This file is part of Nominatim. (https://nominatim.org)
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#
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# Copyright (C) 2022 by the Nominatim developer community.
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# For a full list of authors see the git log.
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"""
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Tests for converting a config file to ICU rules.
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"""
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from textwrap import dedent
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import pytest
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import yaml
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from nominatim.tokenizer.icu_rule_loader import ICURuleLoader
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from nominatim.errors import UsageError
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from icu import Transliterator
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CONFIG_SECTIONS = ('normalization', 'transliteration', 'token-analysis')
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class TestIcuRuleLoader:
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@pytest.fixture(autouse=True)
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def init_env(self, project_env):
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self.project_env = project_env
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def write_config(self, content):
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(self.project_env.project_dir / 'icu_tokenizer.yaml').write_text(dedent(content))
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def config_rules(self, *variants):
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content = dedent("""\
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normalization:
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- ":: NFD ()"
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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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transliteration:
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- ":: Latin ()"
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- "[[:Punctuation:][:Space:]]+ > ' '"
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token-analysis:
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- analyzer: generic
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variants:
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- words:
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""")
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content += '\n'.join((" - " + s for s in variants)) + '\n'
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self.write_config(content)
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def get_replacements(self, *variants):
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self.config_rules(*variants)
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loader = ICURuleLoader(self.project_env)
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rules = loader.analysis[None].config['replacements']
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return sorted((k, sorted(v)) for k,v in rules)
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def test_empty_rule_set(self):
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self.write_config("""\
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normalization:
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transliteration:
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token-analysis:
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- analyzer: generic
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variants:
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""")
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rules = ICURuleLoader(self.project_env)
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assert rules.get_search_rules() == ''
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assert rules.get_normalization_rules() == ''
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assert rules.get_transliteration_rules() == ''
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@pytest.mark.parametrize("section", CONFIG_SECTIONS)
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def test_missing_section(self, section):
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rule_cfg = { s: [] for s in CONFIG_SECTIONS if s != section}
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self.write_config(yaml.dump(rule_cfg))
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with pytest.raises(UsageError):
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ICURuleLoader(self.project_env)
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def test_get_search_rules(self):
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self.config_rules()
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loader = ICURuleLoader(self.project_env)
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rules = loader.get_search_rules()
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trans = Transliterator.createFromRules("test", rules)
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assert trans.transliterate(" Baum straße ") == " baum straße "
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assert trans.transliterate(" Baumstraße ") == " baumstraße "
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assert trans.transliterate(" Baumstrasse ") == " baumstrasse "
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assert trans.transliterate(" Baumstr ") == " baumstr "
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assert trans.transliterate(" Baumwegstr ") == " baumwegstr "
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assert trans.transliterate(" Αθήνα ") == " athēna "
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assert trans.transliterate(" проспект ") == " prospekt "
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def test_get_normalization_rules(self):
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self.config_rules()
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loader = ICURuleLoader(self.project_env)
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rules = loader.get_normalization_rules()
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trans = Transliterator.createFromRules("test", rules)
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assert trans.transliterate(" проспект-Prospekt ") == " проспект prospekt "
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def test_get_transliteration_rules(self):
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self.config_rules()
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loader = ICURuleLoader(self.project_env)
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rules = loader.get_transliteration_rules()
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trans = Transliterator.createFromRules("test", rules)
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assert trans.transliterate(" проспект-Prospekt ") == " prospekt Prospekt "
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def test_transliteration_rules_from_file(self):
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self.write_config("""\
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normalization:
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transliteration:
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- "'ax' > 'b'"
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- !include transliteration.yaml
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token-analysis:
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- analyzer: generic
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variants:
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""")
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transpath = self.project_env.project_dir / ('transliteration.yaml')
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transpath.write_text('- "x > y"')
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loader = ICURuleLoader(self.project_env)
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rules = loader.get_transliteration_rules()
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trans = Transliterator.createFromRules("test", rules)
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assert trans.transliterate(" axxt ") == " byt "
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def test_search_rules(self):
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self.config_rules('~street => s,st', 'master => mstr')
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proc = ICURuleLoader(self.project_env).make_token_analysis()
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assert proc.search.transliterate('Master Street').strip() == 'master street'
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assert proc.search.transliterate('Earnes St').strip() == 'earnes st'
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assert proc.search.transliterate('Nostreet').strip() == 'nostreet'
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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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self.config_rules(variant)
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with pytest.raises(UsageError):
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ICURuleLoader(self.project_env)
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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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def test_add_multiple_suffix(self):
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repl = self.get_replacements("~berg,~burg -> bg")
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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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