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 structured 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 * `TEMPLATE_DB` - name of template database used as a skeleton for
82 the test databases (db tests)
83 * `TEST_DB` - name of test database (db tests)
84 * `API_TEST_DB` - name of the database containing the API test data (api tests)
85 * `API_TEST_FILE` - OSM file to be imported into the API test database (api tests)
86 * `API_ENGINE` - webframe to use for running search queries, same values as
87 `nominatim serve --engine` parameter
88 * `DB_HOST` - (optional) hostname of database host
89 * `DB_PORT` - (optional) port of database on host
90 * `DB_USER` - (optional) username of database login
91 * `DB_PASS` - (optional) password for database login
92 * `SERVER_MODULE_PATH` - (optional) path on the Postgres server to Nominatim
93 module shared library file (only needed for legacy tokenizer)
94 * `REMOVE_TEMPLATE` - if true, the template and API database will not be reused
95 during the next run. Reusing the base templates speeds
96 up tests considerably but might lead to outdated errors
97 for some changes in the database layout.
98 * `KEEP_TEST_DB` - if true, the test database will not be dropped after a test
99 is finished. Should only be used if one single scenario is
100 run, otherwise the result is undefined.
102 Logging can be defined through command line parameters of behave itself. Check
103 out `behave --help` for details. Also have a look at the 'work-in-progress'
104 feature of behave which comes in handy when writing new tests.
106 ### API Tests (`test/bdd/api`)
108 These tests are meant to test the different API endpoints and their parameters.
109 They require to import several datasets into a test database. This is normally
110 done automatically during setup of the test. The API test database is then
111 kept around and reused in subsequent runs of behave. Use `behave -DREMOVE_TEMPLATE`
112 to force a reimport of the database.
114 The official test dataset is saved in the file `test/testdb/apidb-test-data.pbf`
115 and compromises the following data:
117 * Geofabrik extract of Liechtenstein
118 * extract of Autauga country, Alabama, US (for tests against Tiger data)
119 * additional data from `test/testdb/additional_api_test.data.osm`
121 API tests should only be testing the functionality of the website PHP code.
122 Most tests should be formulated as BDD DB creation tests (see below) instead.
124 #### Code Coverage (PHP engine only)
126 The API tests also support code coverage tests. You need to install
127 [PHP_CodeCoverage](https://github.com/sebastianbergmann/php-code-coverage).
128 On Debian/Ubuntu run:
130 apt-get install php-codecoverage php-xdebug
132 Then run the API tests as follows:
134 behave api -DPHPCOV=<coverage output dir>
136 The output directory must be an absolute path. To generate reports, you can use
137 the [phpcov](https://github.com/sebastianbergmann/phpcov) tool:
139 phpcov merge --html=<report output dir> <coverage output dir>
141 ### DB Creation Tests (`test/bdd/db`)
143 These tests check the import and update of the Nominatim database. They do not
144 test the correctness of osm2pgsql. Each test will write some data into the `place`
145 table (and optionally the `planet_osm_*` tables if required) and then run
146 Nominatim's processing functions on that.
148 These tests need to create their own test databases. By default they will be
149 called `test_template_nominatim` and `test_nominatim`. Names can be changed with
150 the environment variables `TEMPLATE_DB` and `TEST_DB`. The user running the tests
151 needs superuser rights for postgres.
153 ### Import Tests (`test/bdd/osm2pgsql`)
155 These tests check that data is imported correctly into the place table. They
156 use the same template database as the DB Creation tests, so the same remarks apply.