Added EXAMPLE_1 /dev/null redirection host test to automation suite

libraries/tests/mbed/dev_null/main.cpp

@@ -1,4 +1,5 @@
 #include "mbed.h"
+#include "test_env.h"
 
 class DevNull : public Stream {
 
@@ -13,14 +14,10 @@ protected:
 DevNull null("null");
 
 int main() {
-    printf("re-routing stdout to /null\n");
-    
+    printf("MBED: re-routing stdout to /null\n");
     freopen("/null", "w", stdout);
-    printf("printf redirected to /null\n");
-    
-    DigitalOut led(LED1);
-    while (true) {
-        led = !led;
-        wait(1);
-    }
+    printf("MBED: printf redirected to /null\n");   // This shouldn't appear
+    // If failure message can be seen test should fail :)
+    notify_completion(false);   // This is 'false' on purpose
+    return 0;
 }

workspace_tools/host_tests/dev_null_auto.py

@@ -0,0 +1,37 @@
+"""
+mbed SDK
+Copyright (c) 2011-2013 ARM Limited
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+"""
+
+from host_test import Test, DefaultTest
+from sys import stdout
+
+class DevNullTest(DefaultTest):
+
+    def print_result(self, result):
+       print "\n{%s}\n{end}" % result
+
+    def run(self):
+        test_result = True
+        c = self.mbed.serial.read(512)
+        print "Received %d bytes" % len(c)
+        if "{failure}" not in c:
+            self.print_result('success')
+        else:
+            self.print_result('failure')
+        stdout.flush()
+
+if __name__ == '__main__':
+    DevNullTest().run()

workspace_tools/tests.py

@@ -767,7 +767,9 @@ TESTS = [
     {
         "id": "EXAMPLE_1", "description": "/dev/null",
         "source_dir": join(TEST_DIR, "mbed", "dev_null"),
-        "dependencies": [MBED_LIBRARIES],
+        "dependencies": [MBED_LIBRARIES, TEST_MBED_LIB],
+        "automated": True,
+        "host_test" : "dev_null_auto",
     },
     {
         "id": "EXAMPLE_2", "description": "FS + RTOS",