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 +- scenes Geometry test data
25 +- testdb Base data for generating API test database
28 ## PHP Unit Tests (`test/php`)
30 Unit tests can be found in the php/ directory. They test selected php functions.
33 To execute the test suite run
36 UNIT_TEST_DSN='pgsql:dbname=nominatim_unit_tests' phpunit ../
38 It will read phpunit.xml which points to the library, test path, bootstrap
39 strip and set other parameters.
41 It will use (and destroy) a local database 'nominatim_unit_tests'. You can set
42 a different connection string with e.g. UNIT_TEST_DSN='pgsql:dbname=foo_unit_tests'.
44 ## BDD Functional Tests (`test/bdd`)
46 Functional tests are written as BDD instructions. For more information on
47 the philosophy of BDD testing, see the
48 [Behave manual](http://pythonhosted.org/behave/philosophy.html).
50 The following explanation assume that the reader is familiar with the BDD
51 notations of features, scenarios and steps.
53 All possible steps can be found in the `steps` directory and should ideally
58 To run the functional tests, do
63 The tests can be configured with a set of environment variables (`behave -D key=val`):
65 * `BUILDDIR` - build directory of Nominatim installation to test
66 * `TEMPLATE_DB` - name of template database used as a skeleton for
67 the test databases (db tests)
68 * `TEST_DB` - name of test database (db tests)
69 * `API_TEST_DB` - name of the database containing the API test data (api tests)
70 * `API_TEST_FILE` - OSM file to be imported into the API test database (api tests)
71 * `DB_HOST` - (optional) hostname of database host
72 * `DB_PORT` - (optional) port of database on host
73 * `DB_USER` - (optional) username of database login
74 * `DB_PASS` - (optional) password for database login
75 * `SERVER_MODULE_PATH` - (optional) path on the Postgres server to Nominatim
76 module shared library file
77 * `REMOVE_TEMPLATE` - if true, the template and API database will not be reused
78 during the next run. Reusing the base templates speeds
79 up tests considerably but might lead to outdated errors
80 for some changes in the database layout.
81 * `KEEP_TEST_DB` - if true, the test database will not be dropped after a test
82 is finished. Should only be used if one single scenario is
83 run, otherwise the result is undefined.
85 Logging can be defined through command line parameters of behave itself. Check
86 out `behave --help` for details. Also have a look at the 'work-in-progress'
87 feature of behave which comes in handy when writing new tests.
89 ### API Tests (`test/bdd/api`)
91 These tests are meant to test the different API endpoints and their parameters.
92 They require to import several datasets into a test database. This is normally
93 done automatically during setup of the test. The API test database is then
94 kept around and reused in subsequent runs of behave. Use `behave -DREMOVE_TEMPLATE`
95 to force a reimport of the database.
97 The official test dataset is saved in the file `test/testdb/apidb-test-data.pbf`
98 and compromises the following data:
100 * Geofabrik extract of Liechtenstein
101 * extract of Autauga country, Alabama, US (for tests against Tiger data)
102 * additional data from `test/testdb/additional_api_test.data.osm`
104 API tests should only be testing the functionality of the website PHP code.
105 Most tests should be formulated as BDD DB creation tests (see below) instead.
109 The API tests also support code coverage tests. You need to install
110 [PHP_CodeCoverage](https://github.com/sebastianbergmann/php-code-coverage).
111 On Debian/Ubuntu run:
113 apt-get install php-codecoverage php-xdebug
115 Then run the API tests as follows:
117 behave api -DPHPCOV=<coverage output dir>
119 The output directory must be an absolute path. To generate reports, you can use
120 the [phpcov](https://github.com/sebastianbergmann/phpcov) tool:
122 phpcov merge --html=<report output dir> <coverage output dir>
124 ### DB Creation Tests (`test/bdd/db`)
126 These tests check the import and update of the Nominatim database. They do not
127 test the correctness of osm2pgsql. Each test will write some data into the `place`
128 table (and optionally the `planet_osm_*` tables if required) and then run
129 Nominatim's processing functions on that.
131 These tests need to create their own test databases. By default they will be
132 called `test_template_nominatim` and `test_nominatim`. Names can be changed with
133 the environment variables `TEMPLATE_DB` and `TEST_DB`. The user running the tests
134 needs superuser rights for postgres.
136 ### Import Tests (`test/bdd/osm2pgsql`)
138 These tests check that data is imported correctly into the place table. They
139 use the same template database as the DB Creation tests, so the same remarks apply.
141 Note that most testing of the gazetteer output of osm2pgsql is done in the tests
142 of osm2pgsql itself. The BDD tests are just there to ensure compatibility of
143 the osm2pgsql and Nominatim code.