1 # SPDX-License-Identifier: GPL-2.0-only
3 # This file is part of Nominatim. (https://nominatim.org)
5 # Copyright (C) 2026 by the Nominatim developer community.
6 # For a full list of authors see the git log.
8 Helper functions to compare expected values.
11 import collections.abc
16 from psycopg import sql as pysql
17 from psycopg.rows import dict_row
18 from .geometry_alias import ALIASES
22 'exactly': lambda exp, act: exp == act,
23 'more than': lambda exp, act: act > exp,
24 'less than': lambda exp, act: act < exp,
29 return json.dumps(obj, sort_keys=True, indent=2)
32 def _pt_close(p1, p2):
33 return math.isclose(p1[0], p2[0], abs_tol=1e-07) \
34 and math.isclose(p1[1], p2[1], abs_tol=1e-07)
37 def within_box(value, expect):
38 coord = [float(x) for x in expect.split(',')]
40 if isinstance(value, str):
41 if value.startswith('POINT'):
42 value = value[6:-1].split(' ')
44 value = value.split(',')
45 value = list(map(float, value))
48 return coord[0] <= value[0] <= coord[2] \
49 and coord[1] <= value[1] <= coord[3]
52 return value[0] >= coord[0] and value[1] <= coord[1] \
53 and value[2] >= coord[2] and value[3] <= coord[3]
55 raise ValueError("Not a coordinate or bbox.")
59 None: lambda val, exp: str(val) == exp,
60 'i': lambda val, exp: str(val).lower() == exp.lower(),
61 'fm': lambda val, exp: re.fullmatch(exp, val) is not None,
62 'dict': lambda val, exp: (val is None if exp == '-'
63 else (val == ast.literal_eval('{' + exp + '}'))),
64 'ints': lambda val, exp: (val is None if exp == '-'
65 else (val == [int(i) for i in exp.split(',')])),
66 'set': lambda val, exp: (val is None if exp == '-'
67 else _compare_set(val, exp)),
72 def _compare_set(val, exp):
76 if isinstance(val, str) and val.startswith('{'):
77 val = [v.strip() for v in val[1:-1].split(',')]
79 expected = set(s.strip().strip("'\"") for s in exp.split(','))
80 return set(val) == expected
83 OSM_TYPE = {'node': 'n', 'way': 'w', 'relation': 'r',
84 'N': 'n', 'W': 'w', 'R': 'r'}
88 """ Returns the given attribute as a string.
90 The key parameter determines how the value is formatted before
91 returning. To refer to sub attributes, use '+' to add more keys
92 (e.g. 'name+ref' will access obj['name']['ref']). A '!' introduces
93 a formatting suffix. If no suffix is given, the value will be
94 converted using the str() function.
98 !:... - use a formatting expression according to Python Mini Format Spec
99 !i - make case-insensitive comparison
100 !fm - consider comparison string a regular expression and match full value
101 !wkt - convert the expected value to a WKT string before comparing
102 !in_box - the expected value is a comma-separated bbox description
103 !dict - compare as a dictitionary, member order does not matter
104 !ints - compare as integer array
107 def __init__(self, obj, key, grid=None):
111 self.key, self.fmt = key.rsplit('!', 1)
116 if self.key == 'object':
117 assert 'osm_id' in obj
118 assert 'osm_type' in obj
119 self.subobj = OSM_TYPE[obj['osm_type']] + str(obj['osm_id'])
123 self.subobj = self.obj
124 for sub in self.key.split('+'):
126 if isinstance(self.subobj, collections.abc.Sequence) and sub.isdigit():
128 assert sub < len(self.subobj), \
129 f"Out of bound index {done}. Full object:\n{_pretty(self.obj)}"
131 assert sub in self.subobj, \
132 f"Missing attribute {done}. Full object:\n{_pretty(self.obj)}"
133 self.subobj = self.subobj[sub]
135 def __eq__(self, other):
136 # work around bad quoting by pytest-bdd
137 if not isinstance(other, str):
138 return self.subobj == other
140 other = other.replace(r'\\', '\\')
141 if self.key == 'categories' and self.fmt is None \
142 and isinstance(self.subobj, str) and self.subobj.startswith('{'):
143 val = {v.strip() for v in self.subobj[1:-1].split(',')}
144 exp = {s.strip().strip("'\"") for s in other.split(',')}
147 if self.fmt in COMPARISON_FUNCS:
148 return COMPARISON_FUNCS[self.fmt](self.subobj, other)
149 if self.fmt.startswith(':'):
150 return other == f"{{{self.fmt}}}".format(self.subobj)
152 if self.fmt == 'wkt':
153 return self.compare_wkt(self.subobj, other)
155 raise RuntimeError(f"Unknown format string '{self.fmt}'.")
158 k = self.key.replace('+', '][')
161 return f"result[{k}]({self.subobj})"
163 def compare_wkt(self, value, expected):
164 """ Compare a WKT value against a compact geometry format.
165 The function understands the following formats:
167 country:<country code>
168 Point geometry guaranteed to be in the given country
176 <P> may either be a coordinate of the form '<x> <y>' or a single
177 number. In the latter case it must refer to a point in
178 a previously defined grid.
180 m = re.fullmatch(r'(POINT)\(([0-9. -]*)\)', value) \
181 or re.fullmatch(r'(LINESTRING)\(([0-9,. -]*)\)', value) \
182 or re.fullmatch(r'(POLYGON)\(\(([0-9,. -]*)\)\)', value)
186 converted = [list(map(float, pt.split(' ', 1)))
187 for pt in map(str.strip, m[2].split(','))]
189 if expected.startswith('country:'):
190 ccode = expected[8:].upper()
191 assert ccode in ALIASES, f"Geometry error: unknown country {ccode}"
192 return m[1] == 'POINT' and _pt_close(converted[0], ALIASES[ccode])
194 if ',' not in expected:
195 return m[1] == 'POINT' and _pt_close(converted[0], self.get_point(expected))
197 if '(' not in expected:
198 return m[1] == 'LINESTRING' and \
199 all(_pt_close(p1, p2) for p1, p2 in
200 zip(converted, (self.get_point(p) for p in expected.split(','))))
202 if m[1] != 'POLYGON':
205 # Polygon comparison is tricky because the polygons don't necessarily
206 # end at the same point or have the same winding order.
207 # Brute force all possible variants of the expected polygon
208 exp_coords = [self.get_point(p) for p in expected[1:-1].split(',')]
209 if exp_coords[0] != exp_coords[-1]:
210 raise RuntimeError(f"Invalid polygon {expected}. "
211 "First and last point need to be the same")
212 for line in (exp_coords[:-1], exp_coords[-1:0:-1]):
213 for i in range(len(line)):
214 if all(_pt_close(p1, p2) for p1, p2 in
215 zip(converted, line[i:] + line[:i])):
220 def get_point(self, pt):
223 return list(map(float, pt.split(' ', 1)))
227 return self.grid.get(pt)
230 def check_table_content(conn, tablename, data, grid=None, exact=False):
231 lines = set(range(1, len(data)))
236 cols.extend(('osm_id', 'osm_type'))
238 name, fmt = col.rsplit('!', 1)
239 if fmt in ('wkt', 'in_box'):
240 cols.append(f"ST_AsText({name}) as {name}")
242 cols.append(name.split('+')[0])
244 cols.append(col.split('+')[0])
246 with conn.cursor(row_factory=dict_row) as cur:
247 cur.execute(pysql.SQL(f"SELECT {','.join(cols)} FROM")
248 + pysql.Identifier(tablename))
252 table_content += '\n' + str(row)
254 for col, value in zip(data[0], data[i]):
255 if ResultAttr(row, col, grid=grid) != (None if value == '-' else value):
261 assert not exact, f"Unexpected row in table {tablename}: {row}"
264 "Rows not found:\n" \
265 + '\n'.join(str(data[i]) for i in lines) \
266 + "\nTable content:\n" \