tests: trickle: add pexpect script

tests/trickle/Makefile

@@ -4,3 +4,6 @@ include ../Makefile.tests_common
 USEMODULE += trickle
 
 include $(RIOTBASE)/Makefile.include
+
+test:
+	tests/01-run.py

tests/trickle/tests/01-run.py

@@ -0,0 +1,29 @@
+#!/usr/bin/env python3
+
+# Copyright (C) 2017 HAW Hamburg
+#
+# 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.
+
+import os
+import sys
+
+sys.path.append(os.path.join(os.environ['RIOTBASE'], 'dist/tools/testrunner'))
+import testrunner
+
+def testfunc(child):
+    child.expect_exact("[START]")
+
+    for i in range(5):
+        child.expect(u"now = \d+, prev_now = \d+, diff = \d+")
+
+    child.expect_exact("[TRICKLE_RESET]")
+
+    for i in range(7):
+        child.expect(u"now = \d+, prev_now = \d+, diff = \d+")
+
+    child.expect_exact("[SUCCESS]")
+
+if __name__ == "__main__":
+    sys.exit(testrunner.run(testfunc))