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Add some more transform tests

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Test that gsk_transform_to_affine works.
This commit is contained in:
Matthias Clasen 2021-05-13 06:47:46 -04:00
parent c391cf38e2
commit 809299f9e4
1 changed files with 44 additions and 0 deletions
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44
testsuite/gsk/transform.c
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@ -524,6 +524,49 @@ test_axis_aligned (void)
gsk_transform_unref (transform);
}
static void
test_to_affine (void)
{
GskTransform *transform;
float sx, sy, dx, dy;
transform = gsk_transform_scale (NULL, 10.0, 5.0);
gsk_transform_to_affine (transform, &sx, &sy, &dx, &dy);
gsk_transform_unref (transform);
g_assert_cmpfloat (sx, ==, 10.0);
g_assert_cmpfloat (sy, ==, 5.0);
g_assert_cmpfloat (dx, ==, 0.0);
g_assert_cmpfloat (dy, ==, 0.0);
transform = gsk_transform_translate (NULL, &GRAPHENE_POINT_INIT (10.0, 5.0));
gsk_transform_to_affine (transform, &sx, &sy, &dx, &dy);
gsk_transform_unref (transform);
g_assert_cmpfloat (sx, ==, 1.0);
g_assert_cmpfloat (sy, ==, 1.0);
g_assert_cmpfloat (dx, ==, 10.0);
g_assert_cmpfloat (dy, ==, 5.0);
transform = gsk_transform_translate (gsk_transform_scale (NULL, 2.0, 3.0), &GRAPHENE_POINT_INIT (10.0, 5.0));
gsk_transform_to_affine (transform, &sx, &sy, &dx, &dy);
gsk_transform_unref (transform);
g_assert_cmpfloat (sx, ==, 2.0);
g_assert_cmpfloat (sy, ==, 3.0);
g_assert_cmpfloat (dx, ==, 2.0 * 10.0);
g_assert_cmpfloat (dy, ==, 3.0 * 5.0);
transform = gsk_transform_scale (gsk_transform_translate (NULL, &GRAPHENE_POINT_INIT (10.0, 5.0)), 2.0, 3.0);
gsk_transform_to_affine (transform, &sx, &sy, &dx, &dy);
gsk_transform_unref (transform);
g_assert_cmpfloat (sx, ==, 2.0);
g_assert_cmpfloat (sy, ==, 3.0);
g_assert_cmpfloat (dx, ==, 10.0);
g_assert_cmpfloat (dy, ==, 5.0);
}
int
main (int argc,
char *argv[])
@ -537,6 +580,7 @@ main (int argc,
g_test_add_func ("/transform/invert", test_invert);
g_test_add_func ("/transform/print-parse", test_print_parse);
g_test_add_func ("/transform/check-axis-aligneness", test_axis_aligned);
g_test_add_func ("/transform/to-affine", test_to_affine);
return g_test_run ();
}