tests: handle thread creation limit

adjusted to API change, uncrustified

tests/thread_flood/Makefile

@@ -0,0 +1,6 @@
+APPLICATION = thread_flood
+include ../Makefile.tests_common
+
+DISABLE_MODULE += auto_init
+
+include $(RIOTBASE)/Makefile.include

tests/thread_flood/main.c

@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2015 Hamburg University of Applied Sciences
+ *
+ * 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 Thread flooding test.
+ *
+ * Spawns sleeping threads till the scheduler's capacity is exhausted.
+ *
+ * @author  Andreas "Paul" Pauli <andreas.pauli@haw-hamburg.de>
+ *
+ * @}
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include "thread.h"
+#include "lpm.h"
+
+/* One stack for all threads. DON'T TRY THIS AT HOME!! */
+static char dummy_stack[THREAD_STACKSIZE_DEFAULT];
+
+static void *thread_func(void *arg)
+{
+    return arg;
+}
+
+int main(void)
+{
+    kernel_pid_t thr_id = KERNEL_PID_UNDEF;
+
+    puts("Start spawning\n");
+    do {
+        thr_id = thread_create(
+            dummy_stack, sizeof(dummy_stack),
+            THREAD_PRIORITY_MAIN - 1,
+            THREAD_CREATE_SLEEPING | THREAD_CREATE_STACKTEST,
+            thread_func, NULL, "dummy");
+    } while (-EOVERFLOW != thr_id);
+
+    if (-EOVERFLOW == thr_id) {
+        puts("Thread creation successful aborted\n");
+    }
+    lpm_set(LPM_OFF);
+    return 0;
+}

tests/thread_flood/tests/test_thread.py

@@ -0,0 +1,8 @@
+#!/usr/bin/python
+
+import pexpect
+
+term = pexpect.spawn("make term")
+
+term.expect('Start spawning\r\n')
+term.expect('Thread creation successful aborted\r\n')