Re: [Qemu-devel] [PATCH v4 2/3] Acceptance tests: add make rule for running them

[Cleber Rosa <crosa@redhat.com>]

On 10/12/18 5:37 PM, Philippe Mathieu-Daudé wrote:
> On 12/10/2018 18:53, Cleber Rosa wrote:
>> The acceptance (aka functional, aka Avocado-based) tests are
>> Python files located in "tests/acceptance" that need to be run
>> with the Avocado libs and test runner.
>>
>> Let's provide a convenient way for QEMU developers to run them,
>> by making use of the tests-venv with the required setup.
>>
>> Also, while the Avocado test runner will take care of creating a
>> location to save test results to, it was understood that it's better
>> if the results are kept within the build tree.
>>
>> Signed-off-by: Cleber Rosa <crosa@redhat.com>
>> ---
>>  docs/devel/testing.rst      | 35 ++++++++++++++++++++++++++++++-----
>>  tests/Makefile.include      | 21 +++++++++++++++++++--
>>  tests/venv-requirements.txt |  1 +
>>  3 files changed, 50 insertions(+), 7 deletions(-)
>>
>> diff --git a/docs/devel/testing.rst b/docs/devel/testing.rst
>> index 727c4019b5..b992a2961d 100644
>> --- a/docs/devel/testing.rst
>> +++ b/docs/devel/testing.rst
>> @@ -545,10 +545,31 @@ Tests based on ``avocado_qemu.Test`` can easily:
>>     - http://avocado-framework.readthedocs.io/en/latest/api/test/avocado.html#avocado.Test
>>     - http://avocado-framework.readthedocs.io/en/latest/api/utils/avocado.utils.html
>>  
>> -Installation
>> -------------
>> +Running tests
>> +-------------
>>  
>> -To install Avocado and its dependencies, run:
>> +You can run the acceptance tests simply by executing:
>> +
>> +.. code::
>> +
>> +  make check-acceptance
>> +
>> +This involves the automatic creation of Python virtual environment
>> +within the build tree (at ``tests/venv``) which will have all the
>> +right dependencies, and will save tests results also within the
>> +build tree (at ``tests/results``).
> 
> Missing: how to activate the virtualenv.
> 

I think there's a clear difference in expectations here... the goal of
the venv is not be emphasized... IMO it's supposed to be as transparent
as possible.

>> +
>> +Note: the build environment must be using a Python 3 stack, and have
>> +the ``venv`` and ``pip`` packages installed.  If necessary, make sure
>> +``configure`` is called with ``--python=`` and that those modules are
>> +available.  On Debian and Ubuntu based systems, depending on the
>> +specific version, they may be on packages named ``python3-venv`` and
>> +``python3-pip``.
>> +
>> +Manual Installation
>> +-------------------
>> +
>> +To manually install Avocado and its dependencies, run:
>>  
>>  .. code::
>>  
>> @@ -689,11 +710,15 @@ The exact QEMU binary to be used on QEMUMachine.
>>  Uninstalling Avocado
>>  --------------------
>>  
>> -If you've followed the installation instructions above, you can easily
>> -uninstall Avocado.  Start by listing the packages you have installed::
>> +If you've followed the manual installation instructions above, you can
>> +easily uninstall Avocado.  Start by listing the packages you have
>> +installed::
>>  
>>    pip list --user
>>  
>>  And remove any package you want with::
>>  
>>    pip uninstall <package_name>
>> +
>> +If you've used ``make check-acceptance``, the Python virtual environment where
>> +Avocado is installed will be cleaned up as part of ``make check-clean``.
> 
> Add a line about deactivating the venv?
> 

Ditto here.  Anyway, I can change it if most people think the venv usage
should be explicit (I'm clearly against it, though).

- Cleber.

>> diff --git a/tests/Makefile.include b/tests/Makefile.include
>> index b66180efa1..75547fc947 100644
>> --- a/tests/Makefile.include
>> +++ b/tests/Makefile.include
>> @@ -11,6 +11,7 @@ check-help:
>>  	@echo " $(MAKE) check-qapi-schema    Run QAPI schema tests"
>>  	@echo " $(MAKE) check-block          Run block tests"
>>  	@echo " $(MAKE) check-tcg            Run TCG tests"
>> +	@echo " $(MAKE) check-acceptance     Run all acceptance (functional) tests"
>>  	@echo " $(MAKE) check-report.html    Generates an HTML test report"
>>  	@echo " $(MAKE) check-venv           Creates a Python venv for tests"
>>  	@echo " $(MAKE) check-clean          Clean the tests"
>> @@ -1020,10 +1021,15 @@ check-decodetree:
>>  
>>  # Python venv for running tests
>>  
>> -.PHONY: check-venv
>> +.PHONY: check-venv check-acceptance
>>  
>>  TESTS_VENV_DIR=$(BUILD_DIR)/tests/venv
>>  TESTS_VENV_REQ=$(SRC_PATH)/tests/venv-requirements.txt
>> +TESTS_RESULTS_DIR=$(BUILD_DIR)/tests/results
>> +# Controls the output generated by Avocado when running tests.
>> +# Any number of command separated loggers are accepted.  For more
>> +# information please refer to "avocado --help".
>> +AVOCADO_SHOW=none
>>  
>>  $(TESTS_VENV_DIR): $(TESTS_VENV_REQ)
>>  	$(call quiet-command, \
>> @@ -1034,8 +1040,19 @@ $(TESTS_VENV_DIR): $(TESTS_VENV_REQ)
>>              PIP, $(TESTS_VENV_REQ))
>>  	$(call quiet-command, touch $@)
>>  
>> +$(TESTS_RESULTS_DIR):
>> +	$(call quiet-command, mkdir -p $@, \
>> +            MKDIR, $@)
>> +
>>  check-venv: $(TESTS_VENV_DIR)
>>  
>> +check-acceptance: check-venv $(TESTS_RESULTS_DIR)
>> +	$(call quiet-command, \
>> +            $(TESTS_VENV_DIR)/bin/python -m avocado \
>> +            --show=$(AVOCADO_SHOW) run --job-results-dir=$(TESTS_RESULTS_DIR) \
>> +            --failfast=on $(SRC_PATH)/tests/acceptance, \
>> +            "AVOCADO", "tests/acceptance")
>> +
>>  # Consolidated targets
>>  
>>  .PHONY: check-qapi-schema check-qtest check-unit check check-clean
>> @@ -1049,7 +1066,7 @@ check-clean:
>>  	rm -rf $(check-unit-y) tests/*.o $(QEMU_IOTESTS_HELPERS-y)
>>  	rm -rf $(sort $(foreach target,$(SYSEMU_TARGET_LIST), $(check-qtest-$(target)-y)) $(check-qtest-generic-y))
>>  	rm -f tests/test-qapi-gen-timestamp
>> -	rm -rf $(TESTS_VENV_DIR)
>> +	rm -rf $(TESTS_VENV_DIR) $(TESTS_RESULTS_DIR)
>>  
>>  clean: check-clean
>>  
>> diff --git a/tests/venv-requirements.txt b/tests/venv-requirements.txt
>> index d39f9d1576..64c6e27a94 100644
>> --- a/tests/venv-requirements.txt
>> +++ b/tests/venv-requirements.txt
>> @@ -1,3 +1,4 @@
>>  # Add Python module requirements, one per line, to be installed
>>  # in the tests/venv Python virtual environment. For more info,
>>  # refer to: https://pip.pypa.io/en/stable/user_guide/#id1
>> +avocado-framework==65.0
>>
> 
> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
>