---
lib/test/unittest.h | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 54 insertions(+)
diff --git a/lib/test/unittest.h b/lib/test/unittest.h
index d3ac116..2ba1796 100644
--- a/lib/test/unittest.h
+++ b/lib/test/unittest.h
@@ -59,4 +59,58 @@
} \
} while (false)
+/**
+ * @brief print (in hex) the contents of a region of memory to stderr
+ *
+ * @param[in] buf The location of the memory region to print.
+ * @param[in] len The size of the memory region at @p buf.
+ */
+static inline void
+test_dumpmem(
+ const void *buf,
+ size_t len)
+{
+ const unsigned char *ucbuf = buf;
+ size_t i;
+ for (i = 0; i < len; ++i)
+ {
+ if ((i % 16) == 0)
+ {
+ fprintf(stderr, "\n ");
+ }
+ else if ((i % 8) == 0)
+ {
+ fprintf(stderr, " ");
+ }
+ fprintf(stderr, " %02x", ucbuf[i]);
+ }
+}
+
+/**
+ * @brief compare two regions of memory
+ *
+ * Call like TEST_MEMCMP(ptr_a, ==, ptr_b, len);
+ */
+#define TEST_MEMCMP(value, condition, cmp_value, len) \
+ do { \
+ const void *TEST_value = (value); \
+ const void *TEST_cmp_value = (cmp_value); \
+ const size_t TEST_len = (len); \
+ if (!(memcmp(TEST_value, TEST_cmp_value, TEST_len) \
+ condition 0)) \
+ { \
+ fprintf(stderr, "Failed test in %s:%d.\n", \
+ __FILE__, __LINE__); \
+ fprintf(stderr, " Expected: %s %s %s (%s)\n", \
+ #value, #condition, #cmp_value, #len); \
+ fprintf(stderr, " Got LHS: %s =", #value); \
+ test_dumpmem(TEST_value, TEST_len); \
+ fprintf(stderr, "\n"); \
+ fprintf(stderr, " Got RHS: %s =", #cmp_value); \
+ test_dumpmem(TEST_cmp_value, TEST_len); \
+ fprintf(stderr, "\n"); \
+ return false; \
+ } \
+ } while (false)
+
#endif
--
2.4.3
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