X-Git-Url: http://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Ftdb2%2Ftest%2Frun-001-encode.c;fp=ccan%2Ftdb2%2Ftest%2Frun-001-encode.c;h=d1b124ef034d44274d7f19fd5576a7340743defa;hb=1a24a8708494668c07e5c02284bfc2ef3b09603b;hp=0000000000000000000000000000000000000000;hpb=95458bafc9dc99ac8fcd68aa8f48a9fc564e6a31;p=ccan

diff --git a/ccan/tdb2/test/run-001-encode.c b/ccan/tdb2/test/run-001-encode.c
new file mode 100644
index 00000000..d1b124ef
--- /dev/null
+++ b/ccan/tdb2/test/run-001-encode.c
@@ -0,0 +1,47 @@
+#include <ccan/tdb2/tdb.c>
+#include <ccan/tdb2/free.c>
+#include <ccan/tdb2/lock.c>
+#include <ccan/tdb2/io.c>
+#include <ccan/tap/tap.h>
+#include "logging.h"
+
+int main(int argc, char *argv[])
+{
+	unsigned int i;
+	struct tdb_used_record rec;
+	struct tdb_context tdb = { .log = tap_log_fn, .log_priv = NULL };
+
+	plan_tests(64 + 32 + 48*7 + 1);
+
+	/* We should be able to encode any data value. */
+	for (i = 0; i < 64; i++)
+		ok1(set_header(&tdb, &rec, 0, 1ULL << i, 1ULL << i, 0, 0)
+		    == 0);
+
+	/* And any key and data with < 64 bits between them. */
+	for (i = 0; i < 32; i++) {
+		tdb_len_t dlen = 1ULL >> (63 - i), klen = 1ULL << i;
+		ok1(set_header(&tdb, &rec, klen, dlen, klen + dlen, 0, 0)
+		    == 0);
+	}
+
+	/* We should neatly encode all values. */
+	for (i = 0; i < 48; i++) {
+		uint64_t h = 1ULL << (i < 5 ? 63 - i : 63 - 4);
+		uint64_t klen = 1ULL << (i < 16 ? i : 15);
+		uint64_t dlen = 1ULL << i;
+		uint64_t xlen = 1ULL << (i < 32 ? i : 31);
+		uint64_t zbits = 1ULL << (i < 6 ? i : 5);
+		ok1(set_header(&tdb, &rec, klen, dlen, klen + dlen + xlen, h,
+			       zbits)
+		    == 0);
+		ok1(rec_key_length(&rec) == klen);
+		ok1(rec_data_length(&rec) == dlen);
+		ok1(rec_extra_padding(&rec) == xlen);
+		ok1((uint64_t)rec_hash(&rec) << (64 - 5) == h);
+		ok1(rec_zone_bits(&rec) == zbits);
+		ok1(rec_magic(&rec) == TDB_MAGIC);
+	}
+	ok1(tap_log_messages == 0);
+	return exit_status();
+}