Files
threshold/internal/db/sqltest
Johan Brandhorst-Satzkorn 38536f4eef internal/db: add deleted tables for all resources (#3885)
Creates a new foo_deleted table for each subtype of each
resource that needs to support pagination. The deleted
tables are used to track deletions of resources and return
them to users of the new pagination API. We track only the
ID and delete_time of the resource, so there's no way to
filter out resources that the user could not see before it
was deleted. This is intentional to keep the design simple
and is not considered a security issue.
2024-01-05 07:43:19 -08:00
..

SQL Tests

This test suite is used to test behavior of the database logic. In particular the data warehouse implementation is completely in sql via plpgsql, functions, and triggers. This test suite is also implemented directly in sql.

Organization

  • initdb.d: contains init scripts/sql that is run on the test database when it starts. It ensures the sql migrations are run and creates test helper functions.
  • tests: contains the tests. Each file can contain only a single test that runs in a transaction so it can rollback.

The tests leverage the pgTap postgres extension to make assertions and provide more readable test output.

Usage

To run the test run make or make test. This will:

  • Start a docker postgres container and initialize it.
  • Start a docker pgtap container to execute the tests.

When writing new tests it can be faster to keep the database up and just re-run the tests. This can be done by running:

# starts database docker image in the background
make database-up

# runs the tests, call this multiple times while implementing new tests.
make run-tests

# to clean up
make clean

You can also run individual tests:

# run a single test file
make TESTS=tests/setup/wtt_load.sql

# run a single test file with the database already created.
make run-tests TESTS=tests/setup/wtt_load.sql

# run a directory of tests
make TESTS=tests/setup/*.sql

You can pass through options to pg_prove. See the docs for available options, i.e:

# run tests in parallel with verbose output
make PROVE_OPTS='-j9 -v'

By default the database docker container does not use a host port. This can be changed using an environment variable:

$ export SQL_TEST_DB_PORT=5433
$ make database-up
$ make run-tests

Different versions of postgres can easily be tested:

make PG_DOCKER_TAG=latest
make PG_DOCKER_TAG=14-alpine
make PG_DOCKER_TAG=13-alpine
make PG_DOCKER_TAG=12-alpine