1 # SPDX-License-Identifier: GPL-2.0-only
3 # This file is part of Nominatim. (https://nominatim.org)
5 # Copyright (C) 2025 by the Nominatim developer community.
6 # For a full list of authors see the git log.
8 Helper functions to compare expected values.
14 from psycopg import sql as pysql
15 from psycopg.rows import dict_row
16 from .geometry_alias import ALIASES
20 'exactly': lambda exp, act: exp == act,
21 'more than': lambda exp, act: act > exp,
22 'less than': lambda exp, act: act < exp,
27 return json.dumps(obj, sort_keys=True, indent=2)
30 def _pt_close(p1, p2):
31 return math.isclose(p1[0], p2[0], abs_tol=1e-07) \
32 and math.isclose(p1[1], p2[1], abs_tol=1e-07)
35 def within_box(value, expect):
36 coord = [float(x) for x in expect.split(',')]
38 if isinstance(value, str):
39 if value.startswith('POINT'):
40 value = value[6:-1].split(' ')
42 value = value.split(',')
43 value = list(map(float, value))
46 return coord[0] <= value[0] <= coord[2] \
47 and coord[1] <= value[1] <= coord[3]
50 return value[0] >= coord[0] and value[1] <= coord[1] \
51 and value[2] >= coord[2] and value[3] <= coord[3]
53 raise ValueError("Not a coordinate or bbox.")
57 None: lambda val, exp: str(val) == exp,
58 'i': lambda val, exp: str(val).lower() == exp.lower(),
59 'fm': lambda val, exp: re.fullmatch(exp, val) is not None,
60 'dict': lambda val, exp: val is None if exp == '-' else (val == eval('{' + exp + '}')),
64 OSM_TYPE = {'node': 'n', 'way': 'w', 'relation': 'r',
65 'N': 'n', 'W': 'w', 'R': 'r'}
69 """ Returns the given attribute as a string.
71 The key parameter determines how the value is formatted before
72 returning. To refer to sub attributes, use '+' to add more keys
73 (e.g. 'name+ref' will access obj['name']['ref']). A '!' introduces
74 a formatting suffix. If no suffix is given, the value will be
75 converted using the str() function.
79 !:... - use a formatting expression according to Python Mini Format Spec
80 !i - make case-insensitive comparison
81 !fm - consider comparison string a regular expression and match full value
82 !wkt - convert the expected value to a WKT string before comparing
83 !in_box - the expected value is a comma-separated bbox description
86 def __init__(self, obj, key, grid=None):
90 self.key, self.fmt = key.rsplit('!', 1)
95 if self.key == 'object':
96 assert 'osm_id' in obj
97 assert 'osm_type' in obj
98 self.subobj = OSM_TYPE[obj['osm_type']] + str(obj['osm_id'])
102 self.subobj = self.obj
103 for sub in self.key.split('+'):
105 assert sub in self.subobj, \
106 f"Missing attribute {done}. Full object:\n{_pretty(self.obj)}"
107 self.subobj = self.subobj[sub]
109 def __eq__(self, other):
110 # work around bad quoting by pytest-bdd
111 if not isinstance(other, str):
112 return self.subobj == other
114 other = other.replace(r'\\', '\\')
116 if self.fmt in COMPARISON_FUNCS:
117 return COMPARISON_FUNCS[self.fmt](self.subobj, other)
119 if self.fmt.startswith(':'):
120 return other == f"{{{self.fmt}}}".format(self.subobj)
122 if self.fmt == 'wkt':
123 return self.compare_wkt(self.subobj, other)
125 raise RuntimeError(f"Unknown format string '{self.fmt}'.")
128 k = self.key.replace('+', '][')
131 return f"result[{k}]({self.subobj})"
133 def compare_wkt(self, value, expected):
134 """ Compare a WKT value against a compact geometry format.
135 The function understands the following formats:
137 country:<country code>
138 Point geometry guaranteed to be in the given country
146 <P> may either be a coordinate of the form '<x> <y>' or a single
147 number. In the latter case it must refer to a point in
148 a previously defined grid.
150 m = re.fullmatch(r'(POINT)\(([0-9. -]*)\)', value) \
151 or re.fullmatch(r'(LINESTRING)\(([0-9,. -]*)\)', value) \
152 or re.fullmatch(r'(POLYGON)\(\(([0-9,. -]*)\)\)', value)
156 converted = [list(map(float, pt.split(' ', 1)))
157 for pt in map(str.strip, m[2].split(','))]
159 if expected.startswith('country:'):
160 ccode = expected[8:].upper()
161 assert ccode in ALIASES, f"Geometry error: unknown country {ccode}"
162 return m[1] == 'POINT' and _pt_close(converted[0], ALIASES[ccode])
164 if ',' not in expected:
165 return m[1] == 'POINT' and _pt_close(converted[0], self.get_point(expected))
167 if '(' not in expected:
168 return m[1] == 'LINESTRING' and \
169 all(_pt_close(p1, p2) for p1, p2 in
170 zip(converted, (self.get_point(p) for p in expected.split(','))))
172 if m[1] != 'POLYGON':
175 # Polygon comparison is tricky because the polygons don't necessarily
176 # end at the same point or have the same winding order.
177 # Brute force all possible variants of the expected polygon
178 exp_coords = [self.get_point(p) for p in expected[1:-1].split(',')]
179 if exp_coords[0] != exp_coords[-1]:
180 raise RuntimeError(f"Invalid polygon {expected}. "
181 "First and last point need to be the same")
182 for line in (exp_coords[:-1], exp_coords[-1:0:-1]):
183 for i in range(len(line)):
184 if all(_pt_close(p1, p2) for p1, p2 in
185 zip(converted, line[i:] + line[:i])):
190 def get_point(self, pt):
193 return list(map(float, pt.split(' ', 1)))
197 return self.grid.get(pt)
200 def check_table_content(conn, tablename, data, grid=None, exact=False):
201 lines = set(range(1, len(data)))
206 cols.extend(('osm_id', 'osm_type'))
208 name, fmt = col.rsplit('!', 1)
209 if fmt in ('wkt', 'in_box'):
210 cols.append(f"ST_AsText({name}) as {name}")
212 cols.append(name.split('+')[0])
214 cols.append(col.split('+')[0])
216 with conn.cursor(row_factory=dict_row) as cur:
217 cur.execute(pysql.SQL(f"SELECT {','.join(cols)} FROM")
218 + pysql.Identifier(tablename))
222 table_content += '\n' + str(row)
224 for col, value in zip(data[0], data[i]):
225 if ResultAttr(row, col, grid=grid) != (None if value == '-' else value):
231 assert not exact, f"Unexpected row in table {tablename}: {row}"
234 "Rows not found:\n" \
235 + '\n'.join(str(data[i]) for i in lines) \
236 + "\nTable content:\n" \