[v3,00/10] dts: add hello world testcase

  Add code needed to run the HelloWorld testcase which just runs the hello
world dpdk application.

The patchset currently heavily refactors this original DTS code needed
to run the testcase:
* The whole architecture has been redone into more sensible class
  hierarchy
* DPDK build on the System under Test
* DPDK eal args construction, app running and shutting down
* SUT hugepage memory configuration
* Test runner
* Test results
* TestSuite class
* Test runner parts interfacing with TestSuite
* The HelloWorld testsuite itself

The code is divided into sub-packages, some of which are divided
further.

There patch may need to be divided into smaller chunks. If so, proposals
on where exactly to split it would be very helpful.

v3:
Finished refactoring everything in this patch, with test suite and test
results being the last parts.
Also changed the directory structure. It's now simplified and the
imports look much better.
I've also many many minor changes such as renaming variables here and
there.

Juraj Linkeš (10):
  dts: add node and os abstractions
  dts: add ssh command verification
  dts: add dpdk build on sut
  dts: add dpdk execution handling
  dts: add node memory setup
  dts: add test suite module
  dts: add hello world testplan
  dts: add hello world testsuite
  dts: add test suite config and runner
  dts: add test results module

 dts/conf.yaml                                 |  19 +-
 dts/framework/config/__init__.py              | 132 +++++++-
 dts/framework/config/arch.py                  |  57 ++++
 dts/framework/config/conf_yaml_schema.json    | 150 ++++++++-
 dts/framework/dts.py                          | 185 ++++++++--
 dts/framework/exception.py                    | 100 +++++-
 dts/framework/logger.py                       |  24 +-
 dts/framework/remote_session/__init__.py      |  30 +-
 dts/framework/remote_session/linux_session.py | 114 +++++++
 dts/framework/remote_session/os_session.py    | 177 ++++++++++
 dts/framework/remote_session/posix_session.py | 221 ++++++++++++
 .../remote_session/remote/__init__.py         |  16 +
 .../remote_session/remote/remote_session.py   | 155 +++++++++
 .../{ => remote}/ssh_session.py               |  91 ++++-
 .../remote_session/remote_session.py          |  95 ------
 dts/framework/settings.py                     |  79 ++++-
 dts/framework/test_result.py                  | 316 ++++++++++++++++++
 dts/framework/test_suite.py                   | 254 ++++++++++++++
 dts/framework/testbed_model/__init__.py       |  20 +-
 dts/framework/testbed_model/dpdk.py           |  78 +++++
 dts/framework/testbed_model/hw/__init__.py    |  27 ++
 dts/framework/testbed_model/hw/cpu.py         | 253 ++++++++++++++
 .../testbed_model/hw/virtual_device.py        |  16 +
 dts/framework/testbed_model/node.py           | 165 +++++++--
 dts/framework/testbed_model/sut_node.py       | 261 +++++++++++++++
 dts/framework/utils.py                        |  39 ++-
 dts/test_plans/hello_world_test_plan.rst      |  68 ++++
 dts/tests/TestSuite_hello_world.py            |  59 ++++
 28 files changed, 2998 insertions(+), 203 deletions(-)
 create mode 100644 dts/framework/config/arch.py
 create mode 100644 dts/framework/remote_session/linux_session.py
 create mode 100644 dts/framework/remote_session/os_session.py
 create mode 100644 dts/framework/remote_session/posix_session.py
 create mode 100644 dts/framework/remote_session/remote/__init__.py
 create mode 100644 dts/framework/remote_session/remote/remote_session.py
 rename dts/framework/remote_session/{ => remote}/ssh_session.py (65%)
 delete mode 100644 dts/framework/remote_session/remote_session.py
 create mode 100644 dts/framework/test_result.py
 create mode 100644 dts/framework/test_suite.py
 create mode 100644 dts/framework/testbed_model/dpdk.py
 create mode 100644 dts/framework/testbed_model/hw/__init__.py
 create mode 100644 dts/framework/testbed_model/hw/cpu.py
 create mode 100644 dts/framework/testbed_model/hw/virtual_device.py
 create mode 100644 dts/framework/testbed_model/sut_node.py
 create mode 100644 dts/test_plans/hello_world_test_plan.rst
 create mode 100644 dts/tests/TestSuite_hello_world.py