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155 lines
7.8 KiB
Markdown
155 lines
7.8 KiB
Markdown
---
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layout: doc
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title: Automated Tests
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permalink: /doc/automated-tests/
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redirect_from:
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- /en/doc/automated-tests/
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- /doc/AutomatedTests/
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---
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Automated Tests
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===============
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Unit and Integration Tests
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--------------------------
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Starting with Qubes R3 we use [python unittest][unittest] to perform automatic tests of Qubes OS.
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Despite the name, we use it for both [unit tests](https://en.wikipedia.org/wiki/Unit_tests) and [integration tests](https://en.wikipedia.org/wiki/Integration_tests).
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The main purpose is, of course, to deliver much more stable releases.
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Integration tests are written with the assumption that they will be called on dedicated hardware.
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**Do not run these tests on installations with important data, because you might lose it.**
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Since these tests were written with this expectation, all the VMs with a name starting with `test-` on the installation are removed during the process, and all the tests are recklessly started from dom0, even when testing VM components.
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Most of the tests are stored in the [core-admin repository](https://github.com/QubesOS/qubes-core-admin/tree/master/tests) in the `tests` directory.
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To start them you can use standard python unittest runner:
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python -m unittest -v qubes.tests
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Or our custom one:
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python -m qubes.tests.run -v
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Our test runner runs mostly the same as the standard one, but it has some nice additional features like color output and not needing the "qubes.test" prefix.
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It also has the ability to run lone selected template tests.
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You can use `python -m qubes.tests.run -h` to get usage information:
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[user@dom0 ~]$ python -m qubes.tests.run -h
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usage: run.py [-h] [--verbose] [--quiet] [--list] [--failfast] [--no-failfast]
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[--do-not-clean] [--do-clean] [--loglevel LEVEL]
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[--logfile FILE] [--syslog] [--no-syslog] [--kmsg] [--no-kmsg]
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[TESTNAME [TESTNAME ...]]
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positional arguments:
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TESTNAME list of tests to run named like in description
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(default: run all tests)
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optional arguments:
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-h, --help show this help message and exit
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--verbose, -v increase console verbosity level
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--quiet, -q decrease console verbosity level
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--list, -l list all available tests and exit
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--failfast, -f stop on the first fail, error or unexpected success
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--no-failfast disable --failfast
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--do-not-clean, --dnc, -D
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do not execute tearDown on failed tests. Implies
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--failfast.
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--do-clean, -C do execute tearDown even on failed tests.
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--loglevel LEVEL, -L LEVEL
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logging level for file and syslog forwarding (one of:
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NOTSET, DEBUG, INFO, WARN, WARNING, ERROR, CRITICAL;
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default: DEBUG)
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--logfile FILE, -o FILE
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if set, test run will be also logged to file
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--syslog reenable logging to syslog
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--no-syslog disable logging to syslog
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--kmsg, --very-brave-or-very-stupid
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log most important things to kernel ring-buffer
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--no-kmsg, --i-am-smarter-than-kay-sievers
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do not abuse kernel ring-buffer
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When running only specific tests, write their names like in log, in format:
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MODULE+"/"+CLASS+"/"+FUNCTION. MODULE should omit initial "qubes.tests.".
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Example: basic/TC_00_Basic/test_000_create
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For instance, to run only the tests for the fedora-21 template, you can use the `-l` option, then filter the list:
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[user@dom0 ~]$ python -m qubes.tests.run -l | grep fedora-21
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network/VmNetworking_fedora-21/test_000_simple_networking
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network/VmNetworking_fedora-21/test_010_simple_proxyvm
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network/VmNetworking_fedora-21/test_020_simple_proxyvm_nm
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network/VmNetworking_fedora-21/test_030_firewallvm_firewall
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network/VmNetworking_fedora-21/test_040_inter_vm
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vm_qrexec_gui/TC_00_AppVM_fedora-21/test_000_start_shutdown
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vm_qrexec_gui/TC_00_AppVM_fedora-21/test_010_run_gui_app
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vm_qrexec_gui/TC_00_AppVM_fedora-21/test_050_qrexec_simple_eof
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vm_qrexec_gui/TC_00_AppVM_fedora-21/test_051_qrexec_simple_eof_reverse
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vm_qrexec_gui/TC_00_AppVM_fedora-21/test_052_qrexec_vm_service_eof
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vm_qrexec_gui/TC_00_AppVM_fedora-21/test_053_qrexec_vm_service_eof_reverse
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vm_qrexec_gui/TC_00_AppVM_fedora-21/test_060_qrexec_exit_code_dom0
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vm_qrexec_gui/TC_00_AppVM_fedora-21/test_065_qrexec_exit_code_vm
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vm_qrexec_gui/TC_00_AppVM_fedora-21/test_100_qrexec_filecopy
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vm_qrexec_gui/TC_00_AppVM_fedora-21/test_110_qrexec_filecopy_deny
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vm_qrexec_gui/TC_00_AppVM_fedora-21/test_120_qrexec_filecopy_self
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vm_qrexec_gui/TC_20_DispVM_fedora-21/test_000_prepare_dvm
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vm_qrexec_gui/TC_20_DispVM_fedora-21/test_010_simple_dvm_run
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vm_qrexec_gui/TC_20_DispVM_fedora-21/test_020_gui_app
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vm_qrexec_gui/TC_20_DispVM_fedora-21/test_030_edit_file
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[user@dom0 ~]$ python -m qubes.tests.run -v `python -m qubes.tests.run -l | grep fedora-21`
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Example test run:
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### Adding a new test to core-admin
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After adding a new unit test to [core-admin/tests](https://github.com/QubesOS/qubes-core-admin/tree/master/tests) you'll have to make sure of two things:
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1. That the test will be added to the RPM file created by [QubesBuilder](/doc/qubes-builder/). For this you need to edit the [core-admin/tests/Makefile](https://github.com/QubesOS/qubes-core-admin/tree/master/tests/Makefile)
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2. That the test will be loaded by [core-admin/tests/\_\_init\_\_.py](https://github.com/QubesOS/qubes-core-admin/tree/master/tests/__init__.py)
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#### Editing the Makefile
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To add your tests, you must append these two lines to the end of the makefile, which will copy your test and its compiled version to the right directory in the RPM file.
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If your test is `example.py`, the appended lines would be:
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cp example.py $(DESTDIR)$(PYTHON_TESTSPATH)
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cp example.py[co] $(DESTDIR)$(PYTHON_TESTSPATH)
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#### Editing `__init__.py`
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You'll also need to add your test at the bottom of the `__init__.py` file, in the method `def load_tests`, in the for loop with `modname`.
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Again, given the hypothetical `example.py` test:
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~~~python
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for modname in (
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'qubes.tests.basic',
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'qubes.tests.dom0_update',
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'qubes.tests.network',
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'qubes.tests.vm_qrexec_gui',
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'qubes.tests.backup',
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'qubes.tests.backupcompatibility',
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'qubes.tests.regressions',
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'qubes.tests.example', # This is our newly added test
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):
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~~~
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Installation Tests with openQA
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------------------------------
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**URL:** <https://openqa.qubes-os.org/>
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**Tests:** <https://github.com/marmarek/openqa-tests-qubesos>
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Manually testing the installation of Qubes OS is a time-consuming process.
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We use [openQA] to automate this process.
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It works by installing Qubes in KVM and interacting with it as a user would, including simulating mouse clicks and keyboard presses.
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Then, it checks the output to see whether various tests were passed, e.g., by comparing the virtual screen output to screenshots of a successful installation.
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Using openQA to automatically test the Qubes installation process works as of Qubes 4.0-rc4 on 2018-01-26, provided that the versions of KVM and QEMU are new enough and the hardware has VT-x and EPT.
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KVM also supports nested virtualization, so HVM should theoretically work.
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In practice, however, either Xen or QEMU crashes when this is attempted.
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Nonetheless, PV works well, which is sufficient for automated installation testing.
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Thanks to an anonymous donor, our openQA system is hosted in a datacenter on hardware that meets these requirements.
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[unittest]: https://docs.python.org/2/library/unittest.html
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[OpenQA]: http://open.qa/
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