# Test Transforms

Test descriptions specify how to run a unittest or talos run. They aim to
describe this abstractly, although in many cases the unique nature of
invocation on different platforms leaves a lot of specific behavior in the test
description, divided by `by-test-platform`.

Test descriptions are validated to conform to the schema in
`taskcluster/gecko_taskgraph/transforms/test/__init__.py`. This schema is
extensively documented and is a the primary reference for anyone modifying
tests.

The output of `tests.py` is a task description. Test dependencies are
produced in the form of a dictionary mapping dependency name to task label.