tdb: import unit tests from CCAN into tdb/test/

I pulled tdb into CCAN as an experiment a while ago; it doesn't belong
there, but it has accumulated some important unit tests.

These are copied from CCAN version init-1486-gc438ec1 with #include "../"
changed to #include "../common/".

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

1 files changed, 47 insertions, 0 deletions

diff --git a/lib/tdb/test/run-rwlock-check.c b/lib/tdb/test/run-rwlock-check.c
new file mode 100644
index 0000000000..ca4bf757aa
--- /dev/null
+++ b/lib/tdb/test/run-rwlock-check.c
@@ -0,0 +1,47 @@
+#define _XOPEN_SOURCE 500
+#include "../common/tdb_private.h"
+#include "../common/io.c"
+#include "../common/tdb.c"
+#include "../common/lock.c"
+#include "../common/freelist.c"
+#include "../common/traverse.c"
+#include "../common/transaction.c"
+#include "../common/error.c"
+#include "../common/open.c"
+#include "../common/check.c"
+#include "../common/hash.c"
+#include <ccan/tap/tap.h>
+#include <stdlib.h>
+#include <err.h>
+
+static void log_fn(struct tdb_context *tdb, enum tdb_debug_level level, const char *fmt, ...)
+{
+	unsigned int *count = tdb_get_logging_private(tdb);
+	if (strstr(fmt, "spinlocks"))
+		(*count)++;
+}
+
+/* The code should barf on TDBs created with rwlocks. */
+int main(int argc, char *argv[])
+{
+	struct tdb_context *tdb;
+	unsigned int log_count;
+	struct tdb_logging_context log_ctx = { log_fn, &log_count };
+
+	plan_tests(4);
+
+	/* We should fail to open rwlock-using tdbs of either endian. */
+	log_count = 0;
+	tdb = tdb_open_ex("test/rwlock-le.tdb", 0, 0, O_RDWR, 0,
+			  &log_ctx, NULL);
+	ok1(!tdb);
+	ok1(log_count == 1);
+
+	log_count = 0;
+	tdb = tdb_open_ex("test/rwlock-be.tdb", 0, 0, O_RDWR, 0,
+			  &log_ctx, NULL);
+	ok1(!tdb);
+	ok1(log_count == 1);
+
+	return exit_status();
+}