tests: add ZEP test application

tests/zep/Makefile

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+APPLICATION = zep
+include ../Makefile.tests_common
+
+# though it would work in theory on other boards I'm currently not willing/to
+# time-constraint to put effort into this for other boards.
+BOARD_WHITELIST = native
+
+USEMODULE += ng_zep
+USEMODULE += ng_netif_default
+USEMODULE += auto_init_ng_netif
+USEMODULE += ng_ipv6_default
+USEMODULE += ng_nomac
+USEMODULE += ng_pktdump
+USEMODULE += shell
+USEMODULE += shell_commands
+
+ifeq (,$(ZEP_DST))
+  # set default
+  CFLAGS += -DZEP_DST="\"::1\""
+else
+  CFLAGS += -DZEP_DST="\"$(ZEP_DST)\""
+endif
+
+ifeq (,$(ZEP_SRC_PORT))
+  # set default
+  CFLAGS += -DZEP_SRC_PORT=NG_ZEP_DEFAULT_PORT
+else
+  CFLAGS += -DZEP_SRC_PORT=$(ZEP_SRC_PORT)
+endif
+
+ifeq (,$(ZEP_DST_PORT))
+  # set default
+  CFLAGS += -DZEP_DST_PORT=NG_ZEP_DEFAULT_PORT
+else
+  CFLAGS += -DZEP_DST_PORT=$(ZEP_DST_PORT)
+endif
+
+# add current directory to the include path. Putting it in CFLAGS will make
+# it go to the beginning, before the standard includes.
+# That way xbee_params.h get's included and auto configuration can pick it up.
+CFLAGS += -I$(CURDIR)
+
+# one for ng_netif_default and one for ZEP
+CFLAGS += -DNG_NETIF_NUMOF=2
+
+include $(RIOTBASE)/Makefile.include

tests/zep/main.c

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+/*
+ * Copyright (C) 2015 Freie Universität Berlin
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     tests
+ * @{
+ *
+ * @file
+ * @brief       Test application for ZEP module
+ *
+ * @author      Hauke Petersen <hauke.petersen@fu-berlin.de>
+ *
+ * @}
+ */
+
+#include <stdio.h>
+
+#include "shell.h"
+#include "shell_commands.h"
+#include "net/ng_netbase.h"
+#include "net/ng_pktdump.h"
+
+/**
+ * @brief   Buffer size used by the shell
+ */
+#define SHELL_BUFSIZE           (64U)
+
+/**
+ * @brief   Read chars from STDIO
+ */
+int shell_read(void)
+{
+    return (int)getchar();
+}
+
+/**
+ * @brief   Write chars to STDIO
+ */
+void shell_put(int c)
+{
+    putchar((char)c);
+}
+
+/**
+ * @brief   Maybe you are a golfer?!
+ */
+int main(void)
+{
+    shell_t shell;
+    ng_netreg_entry_t dump;
+
+    puts("ZEP module test");
+
+    /* initialize and register pktdump */
+    dump.pid = ng_pktdump_getpid();
+
+    if (dump.pid <= KERNEL_PID_UNDEF) {
+        puts("Error starting pktdump thread");
+        return -1;
+    }
+
+    dump.demux_ctx = NG_NETREG_DEMUX_CTX_ALL;
+    ng_netreg_register(NG_NETTYPE_NETIF, &dump);
+
+    /* start the shell */
+    puts("Initialization OK, starting shell now");
+    shell_init(&shell, NULL, SHELL_BUFSIZE, getchar, putchar);
+    shell_run(&shell);
+
+    return 0;
+}