kc3-lang/angle/src/tests/test_utils/runner

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  • Hash : acbe145c
    Author : Jamie Madill
    Date : 2020-07-02T14:59:55 

    Test Runner: Batch tests by config.

This CL sorts tests into subprocesses organized by a single config.
It will allow for the test runner to use a single EGL display per
process in most cases. It doesn't implement the display sharing right
now, that'll be in a forthcoming CL. It assumes test configs are split
between / and (optional ending) __ characters.

Bug: angleproject:3162
Change-Id: I28e8b4687640da6e501f08b8b9347185c99ce30f
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2280403
Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

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    Description

    A conformant OpenGL ES implementation for Windows, Mac, Linux, iOS and Android.

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  • README.md

  • ANGLE Test Harness

    The ANGLE test harness is a harness around GoogleTest that provides functionality similar to the Chromium test harness. It features:

    • splitting a test set into shards
    • catching and reporting crashes and timeouts
    • outputting to the Chromium JSON test results format
    • multi-process execution

    Command-Line Arguments

    The ANGLE test harness accepts all standard GoogleTest arguments. The harness also accepts the following additional command-line arguments:

    • --shard-count and --shard-index control the test sharding
    • --bot-mode enables multi-process execution and test batching
    • --batch-size limits the number of tests to run in each batch
    • --batch-timeout limits the amount of time spent in each batch
    • --max-processes limits the number of simuntaneous processes
    • --test-timeout limits the amount of time spent in each test
    • --results-file specifies a location for the JSON test result output
    • --results-directory specifies a directory to write test results to
    • --filter-file allows passing a larget gtest_filter via a file

    As well as the custom command-line arguments we support a few standard GoogleTest arguments:

    • gtest_filter works as it normally does with GoogleTest
    • gtest_also_run_disabled_tests works as it normally does as well

    Other GoogleTest arguments are not supported although they may work.

    Implementation Notes

    • The test harness only requires angle_common and angle_util.
    • It does not depend on any Chromium browser code. This allows us to compile on other non-Clang platforms.
    • It uses rapidjson to read and write JSON files.
    • Timeouts are detected via a watchdog thread.
    • Crashes are handled via ANGLE’s test crash handling code.
    • Currently it does not entirely support Android or Fuchsia.
    • Test execution is not currently deterministic in multi-process mode.
    • We capture stdout to output test failure reasons.

    See the source code for more details: TestSuite.h and TestSuite.cpp.

    Potential Areas of Improvement

    • Deterministic test execution.
    • Using sockets to communicate with test children. Similar to dEQP’s test harness.
    • Closer integration with ANGLE’s test expectations and system config libraries.
    • Supporting a GoogleTest-free integration.

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