factor out some common shared test init code
diff --git a/src/tests/test_common.c b/src/tests/test_common.c
new file mode 100644
index 0000000..d6c1351
--- /dev/null
+++ b/src/tests/test_common.c
@@ -0,0 +1,87 @@
+/* Common osmo-iuh test stub code */
+
+/* (C) 2015 by Sysmocom s.f.m.c. GmbH
+ * Author: Daniel Willmann <dwillmann@sysmocom.de>
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <getopt.h>
+#include <errno.h>
+#include <signal.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/sctp.h>
+#include <arpa/inet.h>
+
+#include <osmocom/core/application.h>
+#include <osmocom/core/talloc.h>
+#include <osmocom/core/logging.h>
+
+#include "hnbgw.h"
+
+void *talloc_asn1_ctx;
+
+static const struct log_info_cat log_cat[] = {
+	[DMAIN] = {
+		.name = "DMAIN", .loglevel = LOGL_INFO, .enabled = 1,
+		.color = "",
+		.description = "Main program",
+	},
+	[DHNBAP] = {
+		.name = "DHNBAP", .loglevel = LOGL_DEBUG, .enabled = 1,
+		.color = "",
+		.description = "Home Node B Application Part",
+	},
+	[DRANAP] = {
+		.name = "RANAP", .loglevel = LOGL_DEBUG, .enabled = 1,
+		.color = "",
+		.description = "RAN Application Part",
+	},
+	[DRUA] = {
+		.name = "RUA", .loglevel = LOGL_DEBUG, .enabled = 1,
+		.color = "",
+		.description = "RANAP User Adaptation",
+	},
+	[DSUA] = {
+		.name = "SUA", .loglevel = LOGL_DEBUG, .enabled = 1,
+		.color = "",
+		.description = "SCCP User Adaptation",
+	},
+};
+
+static const struct log_info test_log_info = {
+	.cat = log_cat,
+	.num_cat = ARRAY_SIZE(log_cat),
+};
+
+int test_common_init(void)
+{
+	int rc;
+
+	talloc_asn1_ctx = talloc_named_const(NULL, 0, "asn1_context");
+
+	rc = osmo_init_logging(&test_log_info);
+	if (rc < 0)
+		exit(1);
+
+}