add nanopb (manual)

components/spotify/cspot/bell/nanopb/tests/options/options.c

@@ -0,0 +1,28 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include "options.pb.h"
+#include "unittests.h"
+
+int main()
+{
+    int status = 0;
+
+    {
+        HasFieldMessage msg1 = HasFieldMessage_init_default;
+        HasFieldMessage msg2 = HasFieldMessage_init_zero;
+
+        COMMENT("Test default_has option");
+
+        /* Default initializer should obey has_default setting */
+        TEST(msg1.has_present == true);
+        TEST(msg1.has_missing == false);
+        TEST(msg1.has_normal == false);
+
+        /* Zero initializer should always have false */
+        TEST(msg2.has_present == false);
+        TEST(msg2.has_missing == false);
+        TEST(msg2.has_normal == false);
+    }
+
+    return status;
+}