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tests/drm-mock: Add filter mocking

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This new filter allows test cases to manipulate what the kernel reports,
e.g. mark connected connectors as disconnected to emulate monitors
connecting and disconnecting.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2821>
This commit is contained in:
Jonas Ådahl 2023-02-01 12:20:28 +01:00 committed by Marge Bot
parent 671efb9937
commit 17623189e8
3 changed files with 81 additions and 2 deletions
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62
src/tests/drm-mock/drm-mock.c
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@ -26,12 +26,17 @@
#include "drm-mock.h"
#include <dlfcn.h>
#include <glib.h>
#include <stdint.h>
#include <stdio.h>
#include <xf86drmMode.h>
typedef struct _DrmMockResourceFilter
{
DrmMockResourceFilterFunc filter_func;
gpointer user_data;
} DrmMockResourceFilter;
static GList *queued_errors[DRM_MOCK_N_CALLS];
static DrmMockResourceFilter *resource_filters[DRM_MOCK_N_CALL_FILTERS];
static int
maybe_mock_error (DrmMockCall call)
@ -69,6 +74,27 @@ FunctionName args_type \
return real_function args; \
}
#define MOCK_FILTER_FUNCTION(FunctionName, CALL_FILTER_TYPE, return_type, args_type, args) \
\
DRM_MOCK_EXPORT return_type \
FunctionName args_type \
{ \
static return_type (* real_function) args_type; \
return_type ret; \
DrmMockResourceFilter *filter; \
\
if (G_UNLIKELY (!real_function)) \
real_function = dlsym (RTLD_NEXT, #FunctionName); \
\
ret = real_function args; \
\
filter = resource_filters[CALL_FILTER_TYPE]; \
if (filter) \
filter->filter_func (ret, filter->user_data); \
\
return ret; \
}
MOCK_FUNCTION (drmModeAtomicCommit,
DRM_MOCK_CALL_ATOMIC_COMMIT,
(int fd,
@ -98,6 +124,13 @@ MOCK_FUNCTION (drmModeSetCrtc,
drmModeModeInfoPtr mode),
(fd, crtc_id, fb_id, x, y, connectors, count, mode))
MOCK_FILTER_FUNCTION (drmModeGetConnector,
DRM_MOCK_CALL_FILTER_GET_CONNECTOR,
drmModeConnectorPtr,
(int fd,
uint32_t connector_id),
(fd, connector_id))
void
drm_mock_queue_error (DrmMockCall call,
int error_number)
@ -107,3 +140,28 @@ drm_mock_queue_error (DrmMockCall call,
queued_errors[call] = g_list_append (queued_errors[call],
GINT_TO_POINTER (error_number));
}
void
drm_mock_set_resource_filter (DrmMockCallFilter call_filter,
DrmMockResourceFilterFunc filter_func,
gpointer user_data)
{
DrmMockResourceFilter *new_filter;
g_autofree DrmMockResourceFilter *old_filter = NULL;
new_filter = g_new0 (DrmMockResourceFilter, 1);
new_filter->filter_func = filter_func;
new_filter->user_data = user_data;
old_filter = resource_filters[call_filter];
g_atomic_pointer_set (&resource_filters[call_filter], new_filter);
}
void
drm_mock_unset_resource_filter (DrmMockCallFilter call_filter)
{
g_autofree DrmMockResourceFilter *old_filter = NULL;
old_filter = resource_filters[call_filter];
g_atomic_pointer_set (&resource_filters[call_filter], NULL);
}

21
src/tests/drm-mock/drm-mock.h
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@ -26,6 +26,9 @@
#ifndef DRM_MOCK_H
#define DRM_MOCK_H
#include <glib.h>
#include <xf86drmMode.h>
#define DRM_MOCK_EXPORT __attribute__((visibility("default"))) extern
typedef enum _DrmMockCall
@ -37,8 +40,26 @@ typedef enum _DrmMockCall
DRM_MOCK_N_CALLS
} DrmMockCall;
typedef enum _DrmMockCallFilter
{
DRM_MOCK_CALL_FILTER_GET_CONNECTOR,
DRM_MOCK_N_CALL_FILTERS
} DrmMockCallFilter;
typedef void (* DrmMockResourceFilterFunc) (gpointer resource,
gpointer user_data);
DRM_MOCK_EXPORT
void drm_mock_queue_error (DrmMockCall call,
int error_number);
DRM_MOCK_EXPORT
void drm_mock_set_resource_filter (DrmMockCallFilter call_filter,
DrmMockResourceFilterFunc filter_func,
gpointer user_data);
DRM_MOCK_EXPORT
void drm_mock_unset_resource_filter (DrmMockCallFilter call_filter);
#endif /* DRM_MOCK_H */

0
src/tests/headless-start-test.c → src/tests/native-kms-headless-start.c
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