test: add assert()s to fix analyzer warnings

Reduce the analyzer spam a bit by adding some extra asserts.
Since it's test code, we can't have enough of them anyways ;-)

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>

test/xi2/protocol-common.c

@@ -56,6 +56,7 @@ fake_init_sprite(DeviceIntPtr dev)
 
     sprite->spriteTraceSize = 10;
     sprite->spriteTrace = calloc(sprite->spriteTraceSize, sizeof(WindowPtr));
+    assert(sprite->spriteTrace);
     sprite->spriteTraceGood = 1;
     sprite->spriteTrace[0] = &root;
     sprite->hot.x = SPRITE_X;

test/xi2/xi2.c

@@ -59,10 +59,12 @@ xi2mask_test(void)
     assert(xi2mask_num_masks(xi2mask) == xi2mask->nmasks);
 
     mask = calloc(1, xi2mask_mask_size(xi2mask));
+    assert(mask);
+
     /* ensure zeros */
     for (i = 0; i < xi2mask_num_masks(xi2mask); i++) {
         const unsigned char *m = xi2mask_get_one_mask(xi2mask, i);
-
+        assert(mask);
         assert(memcmp(mask, m, xi2mask_mask_size(xi2mask)) == 0);
     }
 
@@ -77,7 +79,10 @@ xi2mask_test(void)
 
         m = xi2mask_get_one_mask(xi2mask, i);
         SetBit(mask, i);
-        assert(memcmp(mask, m, xi2mask_mask_size(xi2mask)) == 0);
+        assert(mask);
+        assert(m);
+        if (mask)
+            assert(memcmp(mask, m, xi2mask_mask_size(xi2mask)) == 0);
         ClearBit(mask, i);
     }
 
@@ -85,6 +90,7 @@ xi2mask_test(void)
     for (i = 0; i < xi2mask_num_masks(xi2mask); i++) {
         const unsigned char *m = xi2mask_get_one_mask(xi2mask, i);
 
+        assert(mask);
         assert(memcmp(mask, m, xi2mask_mask_size(xi2mask)) != 0);
         xi2mask_zero(xi2mask, i);
         assert(memcmp(mask, m, xi2mask_mask_size(xi2mask)) == 0);
@@ -97,7 +103,7 @@ xi2mask_test(void)
 
     for (i = 0; i < xi2mask_num_masks(xi2mask); i++) {
         const unsigned char *m = xi2mask_get_one_mask(xi2mask, i);
-
+        assert(mask);
         assert(memcmp(mask, m, xi2mask_mask_size(xi2mask)) == 0);
     }