tests/xtimer_reset: added pexpect script

tests/xtimer_reset/Makefile

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

tests/xtimer_reset/tests/01-run.py

@@ -0,0 +1,25 @@
+#!/usr/bin/env python3
+
+# Copyright (C) 2017 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.
+
+import os
+import sys
+
+sys.path.append(os.path.join(os.environ['RIOTBASE'], 'dist/tools/testrunner'))
+import testrunner
+
+def testfunc(child):
+    child.expect_exact("This test tests re-setting of an already active timer.")
+    child.expect_exact("It should print three times \"now=<value>\", with "
+                       "values approximately 100ms (100000us) apart.")
+    child.expect(u"now=\d+")
+    child.expect(u"now=\d+")
+    child.expect(u"now=\d+")
+    child.expect_exact("Test completed!")
+
+if __name__ == "__main__":
+    sys.exit(testrunner.run(testfunc))