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backend/native: Add tests for refresh rate calculation
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1737>
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@ -24,11 +24,14 @@
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#include <stdint.h>
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#include <xf86drmMode.h>
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#include "core/util-private.h"
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typedef struct _MetaDrmFormatBuf
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{
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char s[5];
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} MetaDrmFormatBuf;
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META_EXPORT_TEST
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float meta_calculate_drm_mode_refresh_rate (const drmModeModeInfo *drm_mode);
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const char * meta_drm_format_to_string (MetaDrmFormatBuf *tmp,
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145
src/tests/kms-utils-unit-tests.c
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145
src/tests/kms-utils-unit-tests.c
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@ -0,0 +1,145 @@
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/*
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* Copyright (C) 2021 Akihiko Odaki <akihiko.odaki@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "tests/kms-utils-unit-tests.h"
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#include "tests/test-utils.h"
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#include "backends/native/meta-kms-utils.h"
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typedef struct {
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drmModeModeInfo drm_mode;
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float expected_refresh_rate;
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} ModeInfoTestCase;
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static const ModeInfoTestCase test_cases[] = {
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/* "cvt 640 480" */
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{
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.drm_mode = {
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.clock = 23975,
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.hdisplay = 640,
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.hsync_start = 664,
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.hsync_end = 720,
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.htotal = 800,
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.vdisplay = 480,
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.vsync_start = 483,
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.vsync_end = 487,
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.vtotal = 500,
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.vscan = 0,
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.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC,
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},
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.expected_refresh_rate = 59.9375,
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},
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/* "cvt 640 480" with htotal 0 */
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{
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.drm_mode = {
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.clock = 23975,
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.hdisplay = 640,
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.hsync_start = 664,
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.hsync_end = 720,
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.htotal = 0,
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.vdisplay = 480,
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.vsync_start = 483,
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.vsync_end = 487,
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.vtotal = 500,
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.vscan = 0,
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.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC,
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},
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.expected_refresh_rate = 0.0,
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},
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/* "cvt 640 480" with vtotal 0 */
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{
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.drm_mode = {
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.clock = 23975,
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.hdisplay = 640,
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.hsync_start = 664,
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.hsync_end = 720,
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.htotal = 800,
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.vdisplay = 480,
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.vsync_start = 483,
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.vsync_end = 487,
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.vtotal = 0,
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.vscan = 0,
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.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC,
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},
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.expected_refresh_rate = 0.0,
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},
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/* "cvt 320 240" with doubled clock and vscan 2 */
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{
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.drm_mode = {
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.clock = 12062,
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.hdisplay = 320,
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.hsync_start = 336,
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.hsync_end = 360,
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.htotal = 400,
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.vdisplay = 240,
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.vsync_start = 243,
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.vsync_end = 247,
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.vtotal = 252,
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.vscan = 2,
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.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC,
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},
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.expected_refresh_rate = 59.8313,
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},
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/* "cvt 15360 8640 180" */
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{
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.drm_mode = {
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.clock = 37793603,
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.hdisplay = 15360,
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.hsync_start = 16880,
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.hsync_end = 18624,
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.htotal = 21888,
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.vdisplay = 8640,
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.vsync_start = 8643,
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.vsync_end = 8648,
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.vtotal = 9593,
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.vscan = 0,
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.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC,
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},
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.expected_refresh_rate = 179.9939,
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},
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};
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static void
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refresh_rate (void)
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{
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size_t index;
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for (index = 0; index < G_N_ELEMENTS(test_cases); index++)
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{
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const ModeInfoTestCase *test_case = test_cases + index;
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float refresh_rate;
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refresh_rate =
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meta_calculate_drm_mode_refresh_rate (&test_case->drm_mode);
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g_assert_cmpfloat_with_epsilon (refresh_rate,
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test_case->expected_refresh_rate,
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0.0001);
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}
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}
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void
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init_kms_utils_tests (void)
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{
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g_test_add_func ("/kms-utils/refresh-rate", refresh_rate);
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}
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23
src/tests/kms-utils-unit-tests.h
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23
src/tests/kms-utils-unit-tests.h
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@ -0,0 +1,23 @@
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/*
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* Copyright (C) 2021 Akihiko Odaki <akihiko.odaki@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef KMS_UTILS_UNIT_TESTS_H
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#define KMS_UTILS_UNIT_TESTS_H
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void init_kms_utils_tests (void);
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#endif /* KMS_UTILS_UNIT_TESTS_H */
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@ -76,6 +76,8 @@ unit_tests = executable('mutter-test-unit-tests',
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'unit-tests.c',
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'boxes-tests.c',
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'boxes-tests.h',
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'kms-utils-unit-tests.c',
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'kms-utils-unit-tests.h',
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'meta-backend-test.c',
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'meta-backend-test.h',
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'meta-gpu-test.c',
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@ -29,6 +29,7 @@
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#include "core/boxes-private.h"
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#include "core/main-private.h"
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#include "tests/boxes-tests.h"
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#include "tests/kms-utils-unit-tests.h"
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#include "tests/meta-backend-test.h"
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#include "tests/monitor-config-migration-unit-tests.h"
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#include "tests/monitor-unit-tests.h"
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@ -250,6 +251,7 @@ init_tests (int argc, char **argv)
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g_test_add_func ("/core/boxes/adjacent-to", meta_test_adjacent_to);
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init_kms_utils_tests ();
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init_monitor_store_tests ();
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init_monitor_config_migration_tests ();
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init_monitor_tests ();
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