[cogl] test-gles2-context: Use test_utils_compare_pixel instead of g_asserts

[Neil Roberts <nroberts src gnome org>]

commit a094ac9688a5e6b53be1cd379dc045973aab2fae
Author: Neil Roberts <neil linux intel com>
Date:   Wed Feb 6 12:13:33 2013 +0000

    test-gles2-context: Use test_utils_compare_pixel instead of g_asserts
    
    test_utils_compare_pixel makes the error report slightly easier to
    read because it displays the values for the whole pixel instead of
    reporting that there was a difference somewhere.
    
    Reviewed-by: Robert Bragg <robert linux intel com>

 tests/conform/test-gles2-context.c |   20 +++++---------------
 1 files changed, 5 insertions(+), 15 deletions(-)
---
diff --git a/tests/conform/test-gles2-context.c b/tests/conform/test-gles2-context.c
index 3f22538..e9f6e3a 100644
--- a/tests/conform/test-gles2-context.c
+++ b/tests/conform/test-gles2-context.c
@@ -301,9 +301,7 @@ test_gles2_read_pixels (void)
   gles2->glClear (GL_COLOR_BUFFER_BIT);
   gles2->glReadPixels (0, 0, 1, 1, GL_RGB, GL_UNSIGNED_BYTE, &pixel);
 
-  g_assert (pixel[0] == 0xff);
-  g_assert (pixel[1] == 0);
-  g_assert (pixel[2] == 0);
+  test_utils_compare_pixel (pixel, 0xff0000ff);
 
   fbo_handle = create_gles2_framebuffer (gles2, 256, 256);
 
@@ -313,9 +311,7 @@ test_gles2_read_pixels (void)
   gles2->glClear (GL_COLOR_BUFFER_BIT);
   gles2->glReadPixels (0, 0, 1, 1, GL_RGB, GL_UNSIGNED_BYTE, &pixel);
 
-  g_assert (pixel[0] == 0);
-  g_assert (pixel[1] == 0xff);
-  g_assert (pixel[2] == 0);
+  test_utils_compare_pixel (pixel, 0x00ff00ff);
 
   gles2->glBindFramebuffer (GL_FRAMEBUFFER, 0);
 
@@ -323,9 +319,7 @@ test_gles2_read_pixels (void)
   gles2->glClear (GL_COLOR_BUFFER_BIT);
   gles2->glReadPixels (0, 0, 1, 1, GL_RGB, GL_UNSIGNED_BYTE, &pixel);
 
-  g_assert (pixel[0] == 0);
-  g_assert (pixel[1] == 0xff);
-  g_assert (pixel[2] == 0xff);
+  test_utils_compare_pixel (pixel, 0x00ffffff);
 
   cogl_pop_gles2_context (test_ctx);
 
@@ -343,9 +337,7 @@ test_gles2_read_pixels (void)
 
   gles2->glReadPixels (0, 0, 1, 1, GL_RGB, GL_UNSIGNED_BYTE, &pixel);
 
-  g_assert (pixel[0] == 0);
-  g_assert (pixel[1] == 0xff);
-  g_assert (pixel[2] == 0xff);
+  test_utils_compare_pixel (pixel, 0x00ffffff);
 
   cogl_pop_gles2_context (test_ctx);
 
@@ -365,9 +357,7 @@ test_gles2_read_pixels (void)
 
   gles2->glReadPixels (0, 0, 1, 1, GL_RGB, GL_UNSIGNED_BYTE, &pixel);
 
-  g_assert (pixel[0] == 0xff);
-  g_assert (pixel[1] == 0xff);
-  g_assert (pixel[2] == 0xff);
+  test_utils_compare_pixel (pixel, 0xffffffff);
 
   cogl_pop_gles2_context (test_ctx);
 }