The `test-only` flag designates the module contains test-only, not
production code. In order to generate code-coverage reports, we wanted
a way to filter out code (like java_library) that is test-only and
doesn't need to be in the report.
The XXX_test modules will have test-only set automatically.
For modules like `java_library`, users will be a able to set this in
the Android.bp file.
As a follow-up, I'll run some queries to find modules that are only
reachable from top level test targets and mark them test-only as
appropriate.
`test-only` is being added to the team.proto and will be written via the
`all_teams` target.
Currently, it is challenging to find "all top level test targets".
I'm adding another field to mark the target as a "top level test
target" if it is a XXX_test or XXX_test_host module. The goal is to
mark all modules the user intended to run as a test, either with
tradefed or directly as a native test.
I added 'module-type/kind' to the proto so I can do some queries:
gqui from "flatten(out/soong/ownership/all_teams.pb, teams)" proto team.proto:AllTeams 'select teams.kind, count(*) where teams.top_level_target = true group by teams.kind'
+--------------+----------+
| teams.kind | count(*) |
+--------------+----------+
| android_test | 1379 |
| art_cc_test | 56 |
| cc_benchmark | 68 |
| cc_fuzz | 515 |
| cc_test | 3519 |
| cc_test_host | 6 |
| java_fuzz | 5 |
| java_test | 773 |
+--------------+----------+
% gqui from "flatten(~/aosp-main-with-phones/out/soong/ownership/all_teams.pb, teams)" proto team.proto:AllTeams 'select teams.kind ,count(*) where teams.test_only = true group by teams.kind'
+--------------------------+----------+
| teams.kind | count(*) |
+--------------------------+----------+
| android_test | 1379 |
| android_test_helper_app | 1678 |
| art_cc_test | 56 |
| art_cc_test_library | 13 |
| cc_benchmark | 68 |
| cc_fuzz | 515 |
| cc_test | 3519 |
| cc_test_host | 6 |
| cc_test_library | 484 |
| java_library | 2 |
| java_test | 773 |
| java_test_helper_library | 29 |
+--------------------------+----------+
All modules can be seen here: https://docs.google.com/spreadsheets/d/1Zqbh7lDDdlI1xVmrN9fZ8bm8XD7EoORjjiPqbMvAKgQ/edit#gid=396553017
FOLLOW UP cls:
*) Add more top level tests, like sh_test and python_test
*) Add validation so that only modules currently marked test-only
can depend on modules marked test-only
*) Remove test_spec, code_metadata, TestModuleProviderKey: aosp/2928500
Test: go test ./java ./cc ./android
Test: m blueprint_tests
Test: m nothing --no-skip-soong-tests
!! android already failing on selects_test
Test: m all_teams && gqui from "flatten(out/soong/ownership/all_teams.pb, teams)"
Change-Id: Ib97dca60989aa9d7f000727c92af2e354926f072
Ronald Braunstein