3 This chapter describes the tests in the `/test` directory, how they are
4 structured and how to extend them. For a quick introduction on how to run
5 the tests, see the [Development setup chapter](Development-Environment.md).
9 There are two kind of tests in this test suite. There are functional tests
10 which test the API interface using a BDD test framework and there are unit
11 tests for specific PHP functions.
13 This test directory is sturctured as follows:
16 -+- bdd Functional API tests
18 | +- steps Step implementations for test descriptions
19 | +- osm2pgsql Tests for data import via osm2pgsql
20 | +- db Tests for internal data processing on import and update
21 | +- api Tests for API endpoints (search, reverse, etc.)
24 +- python Python unit tests
25 +- scenes Geometry test data
26 +- testdb Base data for generating API test database
29 ## PHP Unit Tests (`test/php`)
31 Unit tests for PHP code can be found in the `php/` directory. They test selected
32 PHP functions. Very low coverage.
34 To execute the test suite run
37 UNIT_TEST_DSN='pgsql:dbname=nominatim_unit_tests' phpunit ../
39 It will read phpunit.xml which points to the library, test path, bootstrap
40 strip and sets other parameters.
42 It will use (and destroy) a local database 'nominatim_unit_tests'. You can set
43 a different connection string with e.g. UNIT_TEST_DSN='pgsql:dbname=foo_unit_tests'.
45 ## Python Unit Tests (`test/python`)
47 Unit tests for Python code can be found in the `python/` directory. The goal is
48 to have complete coverage of the Python library in `nominatim`.
50 To execute the tests run
54 ## BDD Functional Tests (`test/bdd`)
56 Functional tests are written as BDD instructions. For more information on
57 the philosophy of BDD testing, see the
58 [Behave manual](http://pythonhosted.org/behave/philosophy.html).
60 The following explanation assume that the reader is familiar with the BDD
61 notations of features, scenarios and steps.
63 All possible steps can be found in the `steps` directory and should ideally
68 To run the functional tests, do
73 The tests can be configured with a set of environment variables (`behave -D key=val`):
75 * `BUILDDIR` - build directory of Nominatim installation to test
76 * `TEMPLATE_DB` - name of template database used as a skeleton for
77 the test databases (db tests)
78 * `TEST_DB` - name of test database (db tests)
79 * `API_TEST_DB` - name of the database containing the API test data (api tests)
80 * `API_TEST_FILE` - OSM file to be imported into the API test database (api tests)
81 * `DB_HOST` - (optional) hostname of database host
82 * `DB_PORT` - (optional) port of database on host
83 * `DB_USER` - (optional) username of database login
84 * `DB_PASS` - (optional) password for database login
85 * `SERVER_MODULE_PATH` - (optional) path on the Postgres server to Nominatim
86 module shared library file
87 * `REMOVE_TEMPLATE` - if true, the template and API database will not be reused
88 during the next run. Reusing the base templates speeds
89 up tests considerably but might lead to outdated errors
90 for some changes in the database layout.
91 * `KEEP_TEST_DB` - if true, the test database will not be dropped after a test
92 is finished. Should only be used if one single scenario is
93 run, otherwise the result is undefined.
95 Logging can be defined through command line parameters of behave itself. Check
96 out `behave --help` for details. Also have a look at the 'work-in-progress'
97 feature of behave which comes in handy when writing new tests.
99 ### API Tests (`test/bdd/api`)
101 These tests are meant to test the different API endpoints and their parameters.
102 They require to import several datasets into a test database. This is normally
103 done automatically during setup of the test. The API test database is then
104 kept around and reused in subsequent runs of behave. Use `behave -DREMOVE_TEMPLATE`
105 to force a reimport of the database.
107 The official test dataset is saved in the file `test/testdb/apidb-test-data.pbf`
108 and compromises the following data:
110 * Geofabrik extract of Liechtenstein
111 * extract of Autauga country, Alabama, US (for tests against Tiger data)
112 * additional data from `test/testdb/additional_api_test.data.osm`
114 API tests should only be testing the functionality of the website PHP code.
115 Most tests should be formulated as BDD DB creation tests (see below) instead.
119 The API tests also support code coverage tests. You need to install
120 [PHP_CodeCoverage](https://github.com/sebastianbergmann/php-code-coverage).
121 On Debian/Ubuntu run:
123 apt-get install php-codecoverage php-xdebug
125 Then run the API tests as follows:
127 behave api -DPHPCOV=<coverage output dir>
129 The output directory must be an absolute path. To generate reports, you can use
130 the [phpcov](https://github.com/sebastianbergmann/phpcov) tool:
132 phpcov merge --html=<report output dir> <coverage output dir>
134 ### DB Creation Tests (`test/bdd/db`)
136 These tests check the import and update of the Nominatim database. They do not
137 test the correctness of osm2pgsql. Each test will write some data into the `place`
138 table (and optionally the `planet_osm_*` tables if required) and then run
139 Nominatim's processing functions on that.
141 These tests need to create their own test databases. By default they will be
142 called `test_template_nominatim` and `test_nominatim`. Names can be changed with
143 the environment variables `TEMPLATE_DB` and `TEST_DB`. The user running the tests
144 needs superuser rights for postgres.
146 ### Import Tests (`test/bdd/osm2pgsql`)
148 These tests check that data is imported correctly into the place table. They
149 use the same template database as the DB Creation tests, so the same remarks apply.
151 Note that most testing of the gazetteer output of osm2pgsql is done in the tests
152 of osm2pgsql itself. The BDD tests are just there to ensure compatibility of
153 the osm2pgsql and Nominatim code.