tests/event_threads: initial event threads test application

tests/event_threads/Makefile

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+include ../Makefile.tests_common
+
+USEMODULE += event_thread_highest event_thread_medium event_thread_lowest
+
+# arm7 has an issue with it's ISR_STACKSIZE define
+FEATURES_BLACKLIST += arch_arm7
+
+include $(RIOTBASE)/Makefile.include

tests/event_threads/Makefile.ci

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+BOARD_INSUFFICIENT_MEMORY := \
+    arduino-duemilanove \
+    arduino-nano \
+    arduino-uno \
+    atmega328p \
+    nucleo-f031k6 \
+    stm32f030f4-demo \
+    #

tests/event_threads/main.c

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+/*
+ * Copyright (C) 2020 Kaspar Schleiser <kaspar@schleiser.de>
+ *               2020 Freie Universität Berlin
+ *               2020 Inria
+ *
+ * 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       Event threads test application
+ *
+ * @author      Kaspar Schleiser <kaspar@schleiser.de>
+ *
+ * @}
+ */
+
+#include <stdio.h>
+
+#include "thread.h"
+#include "event/thread.h"
+
+static void _handler_high(event_t *event) {
+    (void)event;
+    puts("high");
+}
+
+static event_t event_high = { .handler=_handler_high };
+
+static void _handler_medium(event_t *event) {
+    (void)event;
+    puts("medium");
+}
+
+static event_t event_medium = { .handler=_handler_medium };
+
+static void _handler_low(event_t *event) {
+    (void)event;
+    puts("low");
+}
+
+static event_t event_low = { .handler=_handler_low };
+
+int main(void)
+{
+    event_post(EVENT_PRIO_LOWEST, &event_low);
+    event_post(EVENT_PRIO_MEDIUM, &event_medium);
+    event_post(EVENT_PRIO_HIGHEST, &event_high);
+
+    puts("main done");
+
+    return 0;
+}

tests/event_threads/tests/01-run.py

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+#!/usr/bin/env python3
+
+import sys
+from testrunner import run
+
+
+def testfunc(child):
+    child.expect_exact('medium\r\n')
+    child.expect_exact('high\r\n')
+    child.expect_exact('main done\r\n')
+    child.expect_exact('low\r\n')
+
+
+if __name__ == "__main__":
+    sys.exit(run(testfunc))