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 +- testdb Base data for generating API test database
26 +- testdata Additional test data used by unit tests
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
58 The name of the pytest binary depends on your installation.
60 ## BDD Functional Tests (`test/bdd`)
62 Functional tests are written as BDD instructions. For more information on
63 the philosophy of BDD testing, see the
64 [Behave manual](http://pythonhosted.org/behave/philosophy.html).
66 The following explanation assume that the reader is familiar with the BDD
67 notations of features, scenarios and steps.
69 All possible steps can be found in the `steps` directory and should ideally
74 To run the functional tests, do
79 The tests can be configured with a set of environment variables (`behave -D key=val`):
81 * `BUILDDIR` - build directory of Nominatim installation to test
82 * `TEMPLATE_DB` - name of template database used as a skeleton for
83 the test databases (db tests)
84 * `TEST_DB` - name of test database (db tests)
85 * `API_TEST_DB` - name of the database containing the API test data (api tests)
86 * `API_TEST_FILE` - OSM file to be imported into the API test database (api tests)
87 * `DB_HOST` - (optional) hostname of database host
88 * `DB_PORT` - (optional) port of database on host
89 * `DB_USER` - (optional) username of database login
90 * `DB_PASS` - (optional) password for database login
91 * `SERVER_MODULE_PATH` - (optional) path on the Postgres server to Nominatim
92 module shared library file
93 * `REMOVE_TEMPLATE` - if true, the template and API database will not be reused
94 during the next run. Reusing the base templates speeds
95 up tests considerably but might lead to outdated errors
96 for some changes in the database layout.
97 * `KEEP_TEST_DB` - if true, the test database will not be dropped after a test
98 is finished. Should only be used if one single scenario is
99 run, otherwise the result is undefined.
101 Logging can be defined through command line parameters of behave itself. Check
102 out `behave --help` for details. Also have a look at the 'work-in-progress'
103 feature of behave which comes in handy when writing new tests.
105 ### API Tests (`test/bdd/api`)
107 These tests are meant to test the different API endpoints and their parameters.
108 They require to import several datasets into a test database. This is normally
109 done automatically during setup of the test. The API test database is then
110 kept around and reused in subsequent runs of behave. Use `behave -DREMOVE_TEMPLATE`
111 to force a reimport of the database.
113 The official test dataset is saved in the file `test/testdb/apidb-test-data.pbf`
114 and compromises the following data:
116 * Geofabrik extract of Liechtenstein
117 * extract of Autauga country, Alabama, US (for tests against Tiger data)
118 * additional data from `test/testdb/additional_api_test.data.osm`
120 API tests should only be testing the functionality of the website PHP code.
121 Most tests should be formulated as BDD DB creation tests (see below) instead.
125 The API tests also support code coverage tests. You need to install
126 [PHP_CodeCoverage](https://github.com/sebastianbergmann/php-code-coverage).
127 On Debian/Ubuntu run:
129 apt-get install php-codecoverage php-xdebug
131 Then run the API tests as follows:
133 behave api -DPHPCOV=<coverage output dir>
135 The output directory must be an absolute path. To generate reports, you can use
136 the [phpcov](https://github.com/sebastianbergmann/phpcov) tool:
138 phpcov merge --html=<report output dir> <coverage output dir>
140 ### DB Creation Tests (`test/bdd/db`)
142 These tests check the import and update of the Nominatim database. They do not
143 test the correctness of osm2pgsql. Each test will write some data into the `place`
144 table (and optionally the `planet_osm_*` tables if required) and then run
145 Nominatim's processing functions on that.
147 These tests need to create their own test databases. By default they will be
148 called `test_template_nominatim` and `test_nominatim`. Names can be changed with
149 the environment variables `TEMPLATE_DB` and `TEST_DB`. The user running the tests
150 needs superuser rights for postgres.
152 ### Import Tests (`test/bdd/osm2pgsql`)
154 These tests check that data is imported correctly into the place table. They
155 use the same template database as the DB Creation tests, so the same remarks apply.
157 Note that most testing of the gazetteer output of osm2pgsql is done in the tests
158 of osm2pgsql itself. The BDD tests are just there to ensure compatibility of
159 the osm2pgsql and Nominatim code.