More test suite infrastructure improvements:

- Remove cairo_test_expect_failure.  cairo-test.c now checks
  env var CAIRO_XFAIL_TESTS to see if the running test is
  expected to fail.  The reason for expected failure is
  appended to the test description.
- Test description is written out.
- Failed/crashed tests also write a line out to stderr (in red),
  so one can now redirect stdout to /dev/null to only see failures.
- cairo_test() has been changed to not take the draw function
  anymore, instead, draw function is now part of the test struct.
- "make check" doesn't allow limiting backends to test using env
  var anymore.  To limit backends to test, one should use the
  TARGETS variable on the make command line.
- "make check-valgrind" now writes its log to valgrind-log instead
  of valgrind.log, to not interfere with test log file processing.

1 files changed, 4 insertions, 3 deletions

diff --git a/test/trap-clip.c b/test/trap-clip.c
index 2e9cbc64c..3adeb344e 100644
--- a/test/trap-clip.c
+++ b/test/trap-clip.c
@@ -164,10 +164,11 @@ static void (*clip_funcs[])(cairo_t *cr, int x, int y) = {
 #define IMAGE_WIDTH (ARRAY_SIZE (pattern_funcs) * (WIDTH + PAD) + PAD)
 #define IMAGE_HEIGHT (ARRAY_SIZE (draw_funcs) * ARRAY_SIZE (clip_funcs) * (HEIGHT + PAD) + PAD)
 
-static cairo_test_t test = {
+cairo_test_t test = {
     "trap-clip",
     "Trapezoid clipping",
-    IMAGE_WIDTH, IMAGE_HEIGHT
+    IMAGE_WIDTH, IMAGE_HEIGHT,
+    draw
 };
 
 static cairo_test_status_t
@@ -204,5 +205,5 @@ draw (cairo_t *cr, int width, int height)
 int
 main (void)
 {
-    return cairo_test (&test, draw);
+    return cairo_test (&test);
 }