[Pixman] [PATCH 1/2] Extend blitters test to first check known failure cases

[Søren Sandmann]

From: Søren Sandmann Pedersen <ssp at redhat.com>

This serves to make sure we don't accidentally reintroduce old bugs.
---
 test/blitters-test.c |   43 +++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 43 insertions(+), 0 deletions(-)

diff --git a/test/blitters-test.c b/test/blitters-test.c
index 5e33031..25b3c7b 100644
--- a/test/blitters-test.c
+++ b/test/blitters-test.c
@@ -437,6 +437,46 @@ initialize_palette (void)
 	palette.ent[i] = lcg_rand() & 0xff;
 }
 
+typedef struct
+{
+    uint32_t nth;
+    uint32_t crc;
+} testcase_t;
+
+static testcase_t known_failures[] =
+{
+    { 592654, 0x06BF6ADE },
+};
+
+static int
+run_known_failures (void)
+{
+    int i;
+    
+    for (i = 0; i < sizeof (known_failures) / sizeof (known_failures[0]); ++i)
+    {
+	testcase_t *testcase = &(known_failures[i]);
+	uint32_t crc;
+	
+	crc = test_composite (0, testcase->nth, 0);
+
+	if (crc != testcase->crc)
+	{
+	    crc = test_composite (0, testcase->nth, 1);
+	    
+	    printf ("Test case %d failed\n"
+		    "CRC:      %08x\n"
+		    "Expected: %08x\n",
+		    testcase->nth,
+		    crc,
+		    testcase->crc);
+	    return 1;
+	}
+    }
+
+    return 0;
+}
+
 int
 main (int argc, char *argv[])
 {
@@ -446,6 +486,9 @@ main (int argc, char *argv[])
 
     initialize_palette();
 
+    if (run_known_failures ())
+	return 1;
+    
     if (argc >= 3)
     {
 	n1 = atoi (argv[1]);
-- 
1.7.0.1