kwin/autotests/drm/mock_drm.cpp
Martin Flöser d4ba05a22f [autotests] Add tests for DRM platform plugin
Summary:
The addition of the test infrastructure is motivated by the regressions
caused by adding mode switching and transformation support.
A contributing factor to these regression is the fact that the DRM
platform does not have any tests. It is difficult to test this code as
it needs to work with hardware, thus we cannot use the real DRM library.
Instead we need to use mocking.

This change sets up some first basic tests with the help of a mockDrm
library. In order to better test the code as units the Drm classes are
slightly refactored. Most importantly the dependency to DrmBackend is
removed wherever possible and replaced by a simple int fd which is mostly
the only element used by the classes.

This first test introduces basic testing of a DrmObject. It is intended
to extend this to at least also test DrmPlane as a central piece of our
Drm platform plugin. This will also extend the tests of DrmObject.

Reviewers: #kwin, #plasma

Subscribers: plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D8776
2017-11-21 19:27:33 +01:00

78 lines
2.2 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2017 Martin Flöser <mgraesslin@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#include "mock_drm.h"
#include <QMap>
#include <QVector>
static QMap<int, QVector<_drmModeProperty>> s_drmProperties{};
namespace MockDrm
{
void addDrmModeProperties(int fd, const QVector<_drmModeProperty> &properties)
{
s_drmProperties.insert(fd, properties);
}
}
int drmModeAtomicAddProperty(drmModeAtomicReqPtr req, uint32_t object_id, uint32_t property_id, uint64_t value)
{
Q_UNUSED(req)
Q_UNUSED(object_id)
Q_UNUSED(property_id)
Q_UNUSED(value)
return 0;
}
drmModePropertyPtr drmModeGetProperty(int fd, uint32_t propertyId)
{
auto it = s_drmProperties.find(fd);
if (it == s_drmProperties.end()) {
return nullptr;
}
auto it2 = std::find_if(it->constBegin(), it->constEnd(),
[propertyId] (const auto &property) {
return property.prop_id == propertyId;
}
);
if (it2 == it->constEnd()) {
return nullptr;
}
auto *property = new _drmModeProperty;
property->prop_id = it2->prop_id;
property->flags = it2->flags;
strcpy(property->name, it2->name);
property->count_values = it2->count_values;
property->values = it2->values;
property->count_enums = it2->count_enums;
property->enums = it2->enums;
property->count_blobs = it2->count_blobs;
property->blob_ids = it2->blob_ids;
return property;
}
void drmModeFreeProperty(drmModePropertyPtr ptr)
{
delete ptr;
}