[gnome-photos/wip/rishi/tests-gegl-assert-bbox] test-gegl: Assert the bounding box when zooming GeglBuffers

[Debarshi Ray <debarshir src gnome org>]

commit 22f06b899bcc82923678f2c3690ffbf4071d280c
Author: Debarshi Ray <debarshir gnome org>
Date:   Tue Feb 19 16:04:44 2019 +0100

    test-gegl: Assert the bounding box when zooming GeglBuffers
    
    While the SHA256 checksum is the ultimate source of truth when
    comparing GeglBuffers, the checksum values provide very little insight
    into why the buffers are different. Therefore, it's better to assert
    the more human understandable properties of the GeglBuffer before
    looking at the checksum.
    
    https://gitlab.gnome.org/GNOME/gnome-photos/merge_requests/99

 tests/unit/photos-test-gegl.c | 43 +++++++++++++++++++++++++++++++++++++------
 1 file changed, 37 insertions(+), 6 deletions(-)
---
diff --git a/tests/unit/photos-test-gegl.c b/tests/unit/photos-test-gegl.c
index 9cfb04da..2d0431cc 100644
--- a/tests/unit/photos-test-gegl.c
+++ b/tests/unit/photos-test-gegl.c
@@ -400,7 +400,13 @@ photos_test_gegl_buffer_check_pixbuf (PhotosTestGeglFixture *fixture, gboolean h
 
 
 static void
-photos_test_gegl_buffer_check_zoom (PhotosTestGeglFixture *fixture, double zoom, const gchar *checksum)
+photos_test_gegl_buffer_check_zoom (PhotosTestGeglFixture *fixture,
+                                    double zoom,
+                                    const gchar *checksum,
+                                    gint height,
+                                    gint width,
+                                    gint x,
+                                    gint y)
 {
   const Babl *format_zoomed_converted;
   g_autoptr (GeglBuffer) buffer_zoomed = NULL;
@@ -421,6 +427,11 @@ photos_test_gegl_buffer_check_zoom (PhotosTestGeglFixture *fixture, double zoom,
   g_assert_true (GEGL_IS_BUFFER (buffer_zoomed));
 
   bbox = *gegl_buffer_get_extent (buffer_zoomed);
+  g_assert_cmpint (bbox.height, ==, height);
+  g_assert_cmpint (bbox.width, ==, width);
+  g_assert_cmpint (bbox.x, ==, x);
+  g_assert_cmpint (bbox.y, ==, y);
+
   format_zoomed_converted = babl_format ("R'G'B'A u8");
   buffer_zoomed_converted = gegl_buffer_new (&bbox, format_zoomed_converted);
   gegl_buffer_copy (buffer_zoomed, &bbox, GEGL_ABYSS_NONE, buffer_zoomed_converted, &bbox);
@@ -725,7 +736,11 @@ photos_test_gegl_buffer_zoom_in_0 (PhotosTestGeglFixture *fixture, gconstpointer
 {
   photos_test_gegl_buffer_check_zoom (fixture,
                                       1.4,
-                                      "12d60499ebbf9533040792debe28c8bcdebb5ac6b26e2864b26347f42fade116");
+                                      "12d60499ebbf9533040792debe28c8bcdebb5ac6b26e2864b26347f42fade116",
+                                      280,
+                                      280,
+                                      0,
+                                      0);
 }
 
 
@@ -734,7 +749,11 @@ photos_test_gegl_buffer_zoom_in_1 (PhotosTestGeglFixture *fixture, gconstpointer
 {
   photos_test_gegl_buffer_check_zoom (fixture,
                                       4.0,
-                                      "f8a0d6eb8c2fdc3f5592f39beaea9477aaf33760e5985a092c99bbb02e735c21");
+                                      "f8a0d6eb8c2fdc3f5592f39beaea9477aaf33760e5985a092c99bbb02e735c21",
+                                      800,
+                                      800,
+                                      0,
+                                      0);
 }
 
 
@@ -743,7 +762,11 @@ photos_test_gegl_buffer_zoom_nop (PhotosTestGeglFixture *fixture, gconstpointer
 {
   photos_test_gegl_buffer_check_zoom (fixture,
                                       1.0,
-                                      "2b759cc636f78ff70ef197b9b9495214f9e8de6b3743175f25186c24d9caed5f");
+                                      "2b759cc636f78ff70ef197b9b9495214f9e8de6b3743175f25186c24d9caed5f",
+                                      200,
+                                      200,
+                                      0,
+                                      0);
 }
 
 
@@ -752,7 +775,11 @@ photos_test_gegl_buffer_zoom_out_0 (PhotosTestGeglFixture *fixture, gconstpointe
 {
   photos_test_gegl_buffer_check_zoom (fixture,
                                       0.6,
-                                      "d8c9c2c09079e0064f0633a2e05ed3ddce4f00cda3991b87d8cd79cccf319f6d");
+                                      "d8c9c2c09079e0064f0633a2e05ed3ddce4f00cda3991b87d8cd79cccf319f6d",
+                                      120,
+                                      120,
+                                      0,
+                                      0);
 }
 
 
@@ -761,7 +788,11 @@ photos_test_gegl_buffer_zoom_out_1 (PhotosTestGeglFixture *fixture, gconstpointe
 {
   photos_test_gegl_buffer_check_zoom (fixture,
                                       0.25,
-                                      "82cfa8a533f8800bd213e47fd52593a8f3b78de2bcd4d9b28084cb7825e50e23");
+                                      "82cfa8a533f8800bd213e47fd52593a8f3b78de2bcd4d9b28084cb7825e50e23",
+                                      50,
+                                      50,
+                                      0,
+                                      0);
 }