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tools/telemetry/third_party/typ/README.rst

-typ (Test Your Program)
-=======================
-typ is a simple program for testing command line executables and Python code.
-
-When testing Python code, it is basically a wrapper around the standard
-unittest module, but it provides the following bits of additional
-functionality:
-
-* Parallel test execution.
-* Clean output in the style of the Ninja build tool.
-* A more flexible mechanism for discovering tests from the
-  command line and controlling how they are run:
-
-  * Support for importing tests by directory, filename, or module.
-  * Support for specifying tests to skip, tests to run in parallel,
-    and tests that need to be run by themselves
-
-* Support for producing traces of test times compatible with Chrome's
-  tracing infrastructure (trace_viewer).
-* Integrated test coverage reporting (including parallel coverage).
-* Integrated support for debugging tests.
-* Support for uploading test results automatically to a server
-  (useful for continuous integration monitoring of test results).
-* An abstraction of operating system functionality called the
-  Host class. This can be used by other python code to write more
-  portable and easily testable code by wrapping the multiprocessing,
-  os, subprocess, and time modules.
-* Simple libraries for integrating Ninja-style statistics and line
-  printing into your own code (the Stats and Printer classes).
-* Support for processing arbitrary arguments from calling code to
-  test cases.
-* Support for once-per-process setup and teardown hooks.
-
-(These last two bullet points allow one to write tests that do not require
-Python globals).
-
-History
--------
-
-typ originated out of work on the Blink and Chromium projects, as a way to
-provide a friendlier interface to the Python unittest modules.
-
-Work remaining
---------------
-
-typ is still a work in progress, but it's getting close to being done.
-Things remaining for 1.0, roughly in priority order:
-
-- Implement a non-python file format for testing command line interfaces
-- Write documentation
-
-Possible future work
---------------------
-
-- MainTestCase.check() improvements:
-
-  - check all arguments and show all errors at once?
-  - make multi-line regexp matches easier to follow?
-
-- --debugger improvements:
-
-  - make it skip the initial breakpoint?
-
-- Support testing javascript, java, c++/gtest-style binaries?
-- Support for test sharding in addition to parallel execution (so that
-  run-webkit-tests can re-use as much of the code as possible)?
-- Support for non-unittest runtest invocation (for run-webkit-tests,
-  other harnesses?)