tests/cogl: Migrate atlas-migration test

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2555>

cogl/tests/conform/meson.build

@@ -1,6 +1,5 @@
 cogl_test_conformance_sources = [
   'test-conform-main.c',
-  'test-atlas-migration.c',
   'test-blend-strings.c',
   'test-blend.c',
   'test-depth-test.c',

cogl/tests/conform/test-conform-main.c

@@ -81,7 +81,6 @@ main (int argc, char **argv)
   ADD_TEST (test_wrap_modes, 0, 0);
   UNPORTED_TEST (test_texture_pixmap_x11);
   ADD_TEST (test_texture_get_set_data, 0, 0);
-  ADD_TEST (test_atlas_migration, 0, 0);
   ADD_TEST (test_read_texture_formats, 0, TEST_KNOWN_FAILURE);
   ADD_TEST (test_write_texture_formats, 0, 0);
   ADD_TEST (test_alpha_textures, 0, 0);

cogl/tests/conform/test-declarations.h

@@ -18,7 +18,6 @@ void test_pixel_buffer_set_data (void);
 void test_pixel_buffer_sub_region (void);
 void test_wrap_modes (void);
 void test_texture_get_set_data (void);
-void test_atlas_migration (void);
 void test_read_texture_formats (void);
 void test_write_texture_formats (void);
 void test_alpha_textures (void);

src/tests/cogl/conform/meson.build

@@ -1,4 +1,5 @@
 cogl_tests = [
+  'test-atlas-migration',
 ]
 
 cogl_test_conformance_includes = [

src/tests/cogl/conform/test-atlas-migration.c

@@ -1,7 +1,6 @@
 #include <cogl/cogl.h>
 
-#include "test-declarations.h"
-#include "test-utils.h"
+#include "tests/cogl-test-utils.h"
 
 #define N_TEXTURES 128
 
@@ -112,7 +111,7 @@ verify_texture (CoglTexture *texture, int size)
   g_free (data);
 }
 
-void
+static void
 test_atlas_migration (void)
 {
   CoglTexture *textures[N_TEXTURES];
@@ -144,3 +143,7 @@ test_atlas_migration (void)
   if (cogl_test_verbose ())
     g_print ("OK\n");
 }
+
+COGL_TEST_SUITE (
+  g_test_add_func ("/atlas-migration", test_atlas_migration);
+)