[gnome-photos/wip/rishi/tests-gegl-zoom-in: 4/5] test-gegl: Support multiple reference checksums in /gegl/buffer/zoom/*

[Debarshi Ray <debarshir src gnome org>]

commit 414ee74ec664dfad4e9f21fce5a93a119f122974
Author: Debarshi Ray <debarshir gnome org>
Date:   Wed Apr 1 14:05:40 2020 +0200

    test-gegl: Support multiple reference checksums in /gegl/buffer/zoom/*
    
    The SHA256 checksum of a GeglBuffer can be affected by changes in Babl
    that alter the accuracy of the values generated by GEGL. Babl 0.1.67
    added some AVX2 fast paths [1] that might occasionally affect the
    checksum of GeglBuffers output by gegl:scale-ratio. The difference in
    the accuracy of the values is too small to be perceived by the human
    eye, while the performace benefits are significant.
    
    Therefore, to avoid spurious failures, the test suite needs to support
    multiple reference checksum strings.
    
    [1] Babl commit 41a31deeb36a72bb

 tests/unit/photos-test-gegl.c | 75 ++++++++++++++++++++++---------------------
 1 file changed, 38 insertions(+), 37 deletions(-)
---
diff --git a/tests/unit/photos-test-gegl.c b/tests/unit/photos-test-gegl.c
index 9a6807c3..92175277 100644
--- a/tests/unit/photos-test-gegl.c
+++ b/tests/unit/photos-test-gegl.c
@@ -26,6 +26,7 @@
 
 #include "photos-debug.h"
 #include "photos-gegl.h"
+#include "photos-glib.h"
 #include "photos-quarks.h"
 
 
@@ -402,7 +403,7 @@ 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,
+                                    const gchar *const *checksums,
                                     gint height,
                                     gint width,
                                     gint x,
@@ -437,7 +438,7 @@ photos_test_gegl_buffer_check_zoom (PhotosTestGeglFixture *fixture,
   photos_test_gegl_buffer_save_to_file (buffer_zoomed_converted, fixture->destination_0);
 
   checksum_zoomed_converted = photos_gegl_compute_checksum_for_buffer (G_CHECKSUM_SHA256, 
buffer_zoomed_converted);
-  g_assert_cmpstr (checksum_zoomed_converted, ==, checksum);
+  photos_glib_assert_strv_contains (checksums, checksum_zoomed_converted);
 }
 
 
@@ -732,65 +733,65 @@ photos_test_gegl_buffer_apply_orientation_top_mirror_3 (PhotosTestGeglFixture *f
 static void
 photos_test_gegl_buffer_zoom_in_0 (PhotosTestGeglFixture *fixture, gconstpointer user_data)
 {
-  photos_test_gegl_buffer_check_zoom (fixture,
-                                      1.4,
-                                      "12d60499ebbf9533040792debe28c8bcdebb5ac6b26e2864b26347f42fade116",
-                                      280,
-                                      280,
-                                      0,
-                                      0);
+  const gchar *const checksums[] =
+    {
+      "12d60499ebbf9533040792debe28c8bcdebb5ac6b26e2864b26347f42fade116",
+      NULL
+    };
+
+  photos_test_gegl_buffer_check_zoom (fixture, 1.4, checksums, 280, 280, 0, 0);
 }
 
 
 static void
 photos_test_gegl_buffer_zoom_in_1 (PhotosTestGeglFixture *fixture, gconstpointer user_data)
 {
-  photos_test_gegl_buffer_check_zoom (fixture,
-                                      4.0,
-                                      "f8a0d6eb8c2fdc3f5592f39beaea9477aaf33760e5985a092c99bbb02e735c21",
-                                      800,
-                                      800,
-                                      0,
-                                      0);
+  const gchar *const checksums[] =
+    {
+      "f8a0d6eb8c2fdc3f5592f39beaea9477aaf33760e5985a092c99bbb02e735c21",
+      NULL
+    };
+
+  photos_test_gegl_buffer_check_zoom (fixture, 4.0, checksums, 800, 800, 0, 0);
 }
 
 
 static void
 photos_test_gegl_buffer_zoom_nop (PhotosTestGeglFixture *fixture, gconstpointer user_data)
 {
-  photos_test_gegl_buffer_check_zoom (fixture,
-                                      1.0,
-                                      "2b759cc636f78ff70ef197b9b9495214f9e8de6b3743175f25186c24d9caed5f",
-                                      200,
-                                      200,
-                                      0,
-                                      0);
+  const gchar *const checksums[] =
+    {
+      "2b759cc636f78ff70ef197b9b9495214f9e8de6b3743175f25186c24d9caed5f",
+      NULL
+    };
+
+  photos_test_gegl_buffer_check_zoom (fixture, 1.0, checksums, 200, 200, 0, 0);
 }
 
 
 static void
 photos_test_gegl_buffer_zoom_out_0 (PhotosTestGeglFixture *fixture, gconstpointer user_data)
 {
-  photos_test_gegl_buffer_check_zoom (fixture,
-                                      0.6,
-                                      "d8c9c2c09079e0064f0633a2e05ed3ddce4f00cda3991b87d8cd79cccf319f6d",
-                                      120,
-                                      120,
-                                      0,
-                                      0);
+  const gchar *const checksums[] =
+    {
+      "d8c9c2c09079e0064f0633a2e05ed3ddce4f00cda3991b87d8cd79cccf319f6d",
+      NULL
+    };
+
+  photos_test_gegl_buffer_check_zoom (fixture, 0.6, checksums, 120, 120, 0, 0);
 }
 
 
 static void
 photos_test_gegl_buffer_zoom_out_1 (PhotosTestGeglFixture *fixture, gconstpointer user_data)
 {
-  photos_test_gegl_buffer_check_zoom (fixture,
-                                      0.25,
-                                      "82cfa8a533f8800bd213e47fd52593a8f3b78de2bcd4d9b28084cb7825e50e23",
-                                      50,
-                                      50,
-                                      0,
-                                      0);
+  const gchar *const checksums[] =
+    {
+      "82cfa8a533f8800bd213e47fd52593a8f3b78de2bcd4d9b28084cb7825e50e23",
+      NULL
+    };
+
+  photos_test_gegl_buffer_check_zoom (fixture, 0.25, checksums, 50, 50, 0, 0);
 }