test/bdd/environment.py

   1 from behave import *
   2 import logging
   3 import os
   4 import psycopg2
   5 import psycopg2.extras
   6 import subprocess
   7 import tempfile
   8 from nose.tools import * # for assert functions
   9 from sys import version_info as python_version
  10
  11 logger = logging.getLogger(__name__)
  12
  13 userconfig = {
  14     'BUILDDIR' : os.path.join(os.path.split(__file__)[0], "../../build"),
  15     'REMOVE_TEMPLATE' : False,
  16     'KEEP_TEST_DB' : False,
  17     'DB_HOST' : None,
  18     'DB_PORT' : None,
  19     'DB_USER' : None,
  20     'DB_PASS' : None,
  21     'TEMPLATE_DB' : 'test_template_nominatim',
  22     'TEST_DB' : 'test_nominatim',
  23     'API_TEST_DB' : 'test_api_nominatim',
  24     'TEST_SETTINGS_FILE' : '/tmp/nominatim_settings.php',
  25     'SERVER_MODULE_PATH' : None,
  26     'PHPCOV' : False, # set to output directory to enable code coverage
  27 }
  28
  29 use_step_matcher("re")
  30
  31 class NominatimEnvironment(object):
  32     """ Collects all functions for the execution of Nominatim functions.
  33     """
  34
  35     def __init__(self, config):
  36         self.build_dir = os.path.abspath(config['BUILDDIR'])
  37         self.src_dir = os.path.abspath(os.path.join(os.path.split(__file__)[0], "../.."))
  38         self.db_host = config['DB_HOST']
  39         self.db_port = config['DB_PORT']
  40         self.db_user = config['DB_USER']
  41         self.db_pass = config['DB_PASS']
  42         self.template_db = config['TEMPLATE_DB']
  43         self.test_db = config['TEST_DB']
  44         self.api_test_db = config['API_TEST_DB']
  45         self.server_module_path = config['SERVER_MODULE_PATH']
  46         self.local_settings_file = config['TEST_SETTINGS_FILE']
  47         self.reuse_template = not config['REMOVE_TEMPLATE']
  48         self.keep_scenario_db = config['KEEP_TEST_DB']
  49         self.code_coverage_path = config['PHPCOV']
  50         self.code_coverage_id = 1
  51         os.environ['NOMINATIM_SETTINGS'] = self.local_settings_file
  52
  53         self.template_db_done = False
  54
  55     def connect_database(self, dbname):
  56         dbargs = {'database': dbname}
  57         if self.db_host:
  58             dbargs['host'] = self.db_host
  59         if self.db_port:
  60             dbargs['port'] = self.db_port
  61         if self.db_user:
  62             dbargs['user'] = self.db_user
  63         if self.db_pass:
  64             dbargs['password'] = self.db_pass
  65         conn = psycopg2.connect(**dbargs)
  66         return conn
  67
  68     def next_code_coverage_file(self):
  69         fn = os.path.join(self.code_coverage_path, "%06d.cov" % self.code_coverage_id)
  70         self.code_coverage_id += 1
  71
  72         return fn
  73
  74     def write_nominatim_config(self, dbname):
  75         f = open(self.local_settings_file, 'w')
  76         f.write("<?php\n  @define('CONST_Database_DSN', 'pgsql://%s:%s@%s%s/%s');\n" %
  77                 (self.db_user if self.db_user else '',
  78                  self.db_pass if self.db_pass else '',
  79                  self.db_host if self.db_host else '',
  80                  (':' + self.db_port) if self.db_port else '',
  81                  dbname))
  82         f.write("@define('CONST_Osm2pgsql_Flatnode_File', null);\n")
  83         f.close()
  84
  85     def cleanup(self):
  86         try:
  87             os.remove(self.local_settings_file)
  88         except OSError:
  89             pass # ignore missing file
  90
  91     def db_drop_database(self, name):
  92         conn = self.connect_database('postgres')
  93         conn.set_isolation_level(0)
  94         cur = conn.cursor()
  95         cur.execute('DROP DATABASE IF EXISTS %s' % (name, ))
  96         conn.close()
  97
  98     def setup_template_db(self):
  99         if self.template_db_done:
 100             return
 101
 102         self.template_db_done = True
 103
 104         if self.reuse_template:
 105             # check that the template is there
 106             conn = self.connect_database('postgres')
 107             cur = conn.cursor()
 108             cur.execute('select count(*) from pg_database where datname = %s',
 109                         (self.template_db,))
 110             if cur.fetchone()[0] == 1:
 111                 return
 112             conn.close()
 113         else:
 114             # just in case... make sure a previous table has been dropped
 115             self.db_drop_database(self.template_db)
 116
 117         try:
 118             # call the first part of database setup
 119             self.write_nominatim_config(self.template_db)
 120             self.run_setup_script('create-db', 'setup-db')
 121             # remove external data to speed up indexing for tests
 122             conn = self.connect_database(self.template_db)
 123             cur = conn.cursor()
 124             cur.execute("""select tablename from pg_tables
 125                            where tablename in ('gb_postcode', 'us_postcode')""")
 126             for t in cur:
 127                 conn.cursor().execute('TRUNCATE TABLE %s' % (t[0],))
 128             conn.commit()
 129             conn.close()
 130
 131             # execute osm2pgsql import on an empty file to get the right tables
 132             with tempfile.NamedTemporaryFile(dir='/tmp', suffix='.xml') as fd:
 133                 fd.write(b'<osm version="0.6"></osm>')
 134                 fd.flush()
 135                 self.run_setup_script('import-data',
 136                                       'ignore-errors',
 137                                       'create-functions',
 138                                       'create-tables',
 139                                       'create-partition-tables',
 140                                       'create-partition-functions',
 141                                       'load-data',
 142                                       'create-search-indices',
 143                                       osm_file=fd.name,
 144                                       osm2pgsql_cache='200')
 145         except:
 146             self.db_drop_database(self.template_db)
 147             raise
 148
 149
 150     def setup_api_db(self, context):
 151         self.write_nominatim_config(self.api_test_db)
 152
 153     def setup_unknown_db(self, context):
 154         self.write_nominatim_config('UNKNOWN_DATABASE_NAME')
 155
 156     def setup_db(self, context):
 157         self.setup_template_db()
 158         self.write_nominatim_config(self.test_db)
 159         conn = self.connect_database(self.template_db)
 160         conn.set_isolation_level(0)
 161         cur = conn.cursor()
 162         cur.execute('DROP DATABASE IF EXISTS %s' % (self.test_db, ))
 163         cur.execute('CREATE DATABASE %s TEMPLATE = %s' % (self.test_db, self.template_db))
 164         conn.close()
 165         context.db = self.connect_database(self.test_db)
 166         if python_version[0] < 3:
 167             psycopg2.extras.register_hstore(context.db, globally=False, unicode=True)
 168         else:
 169             psycopg2.extras.register_hstore(context.db, globally=False)
 170
 171     def teardown_db(self, context):
 172         if 'db' in context:
 173             context.db.close()
 174
 175         if not self.keep_scenario_db:
 176             self.db_drop_database(self.test_db)
 177
 178     def run_setup_script(self, *args, **kwargs):
 179         if self.server_module_path:
 180             kwargs = dict(kwargs)
 181             kwargs['module_path'] = self.server_module_path
 182         self.run_nominatim_script('setup', *args, **kwargs)
 183
 184     def run_update_script(self, *args, **kwargs):
 185         self.run_nominatim_script('update', *args, **kwargs)
 186
 187     def run_nominatim_script(self, script, *args, **kwargs):
 188         cmd = ['/usr/bin/env', 'php', '-Cq']
 189         cmd.append(os.path.join(self.build_dir, 'utils', '%s.php' % script))
 190         cmd.extend(['--%s' % x for x in args])
 191         for k, v in kwargs.items():
 192             cmd.extend(('--' + k.replace('_', '-'), str(v)))
 193         proc = subprocess.Popen(cmd, cwd=self.build_dir,
 194                                 stdout=subprocess.PIPE, stderr=subprocess.PIPE)
 195         (outp, outerr) = proc.communicate()
 196         logger.debug("run_nominatim_script: %s\n%s\n%s" % (cmd, outp, outerr))
 197         assert (proc.returncode == 0), "Script '%s' failed:\n%s\n%s\n" % (script, outp, outerr)
 198
 199
 200 class OSMDataFactory(object):
 201
 202     def __init__(self):
 203         scriptpath = os.path.dirname(os.path.abspath(__file__))
 204         self.scene_path = os.environ.get('SCENE_PATH',
 205                            os.path.join(scriptpath, '..', 'scenes', 'data'))
 206         self.scene_cache = {}
 207         self.clear_grid()
 208
 209     def parse_geometry(self, geom, scene):
 210         if geom.find(':') >= 0:
 211             return "ST_SetSRID(%s, 4326)" % self.get_scene_geometry(scene, geom)
 212
 213         if geom.find(',') < 0:
 214             out = "POINT(%s)" % self.mk_wkt_point(geom)
 215         elif geom.find('(') < 0:
 216             line = ','.join([self.mk_wkt_point(x) for x in geom.split(',')])
 217             out = "LINESTRING(%s)" % line
 218         else:
 219             inner = geom.strip('() ')
 220             line = ','.join([self.mk_wkt_point(x) for x in inner.split(',')])
 221             out = "POLYGON((%s))" % line
 222
 223         return "ST_SetSRID('%s'::geometry, 4326)" % out
 224
 225     def mk_wkt_point(self, point):
 226         geom = point.strip()
 227         if geom.find(' ') >= 0:
 228             return geom
 229         else:
 230             pt = self.grid_node(int(geom))
 231             assert_is_not_none(pt, "Point not found in grid")
 232             return "%f %f" % pt
 233
 234     def get_scene_geometry(self, default_scene, name):
 235         geoms = []
 236         for obj in name.split('+'):
 237             oname = obj.strip()
 238             if oname.startswith(':'):
 239                 assert_is_not_none(default_scene, "You need to set a scene")
 240                 defscene = self.load_scene(default_scene)
 241                 wkt = defscene[oname[1:]]
 242             else:
 243                 scene, obj = oname.split(':', 2)
 244                 scene_geoms = self.load_scene(scene)
 245                 wkt = scene_geoms[obj]
 246
 247             geoms.append("'%s'::geometry" % wkt)
 248
 249         if len(geoms) == 1:
 250             return geoms[0]
 251         else:
 252             return 'ST_LineMerge(ST_Collect(ARRAY[%s]))' % ','.join(geoms)
 253
 254     def load_scene(self, name):
 255         if name in self.scene_cache:
 256             return self.scene_cache[name]
 257
 258         scene = {}
 259         with open(os.path.join(self.scene_path, "%s.wkt" % name), 'r') as fd:
 260             for line in fd:
 261                 if line.strip():
 262                     obj, wkt = line.split('|', 2)
 263                     scene[obj.strip()] = wkt.strip()
 264             self.scene_cache[name] = scene
 265
 266         return scene
 267
 268     def clear_grid(self):
 269         self.grid = {}
 270
 271     def add_grid_node(self, nodeid, x, y):
 272         self.grid[nodeid] = (x, y)
 273
 274     def grid_node(self, nodeid):
 275         return self.grid.get(nodeid)
 276
 277
 278 def before_all(context):
 279     # logging setup
 280     context.config.setup_logging()
 281     # set up -D options
 282     for k,v in userconfig.items():
 283         context.config.userdata.setdefault(k, v)
 284     logging.debug('User config: %s' %(str(context.config.userdata)))
 285     # Nominatim test setup
 286     context.nominatim = NominatimEnvironment(context.config.userdata)
 287     context.osm = OSMDataFactory()
 288
 289 def after_all(context):
 290     context.nominatim.cleanup()
 291
 292
 293 def before_scenario(context, scenario):
 294     if 'DB' in context.tags:
 295         context.nominatim.setup_db(context)
 296     elif 'APIDB' in context.tags:
 297         context.nominatim.setup_api_db(context)
 298     elif 'UNKNOWNDB' in context.tags:
 299         context.nominatim.setup_unknown_db(context)
 300     context.scene = None
 301
 302 def after_scenario(context, scenario):
 303     if 'DB' in context.tags:
 304         context.nominatim.teardown_db(context)