test: main loop from blitters-test added as a new function to utils.c

This new generalized function can be reused in both blitters-test
and scaling-test. Final checksum calculation changed in order to make
it parallelizable (it is a sum of individual 32-bit values returned
by a callback function, which is now responsible for running test-specific
code). Return values may be crc32, some other hash or even just zero on
success and non-zero on error (in this case, the expected result of the
whole test run should be 0).

1 files changed, 9 insertions, 0 deletions

diff --git a/test/utils.h b/test/utils.h
index fb1ccec..161635f 100644
--- a/test/utils.h
+++ b/test/utils.h
@@ -43,3 +43,12 @@ image_endian_swap (pixman_image_t *img, int bpp);
 /* Generate n_bytes random bytes in malloced memory */
 uint8_t *
 make_random_bytes (int n_bytes);
+
+/* main body of the fuzzer test */
+int
+fuzzer_test_main (const char *test_name,
+		  int         default_number_of_iterations,
+		  uint32_t    expected_checksum,
+		  uint32_t    (*test_function)(int testnum, int verbose),
+		  int         argc,
+		  const char *argv[]);