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-rw-r--r--libs/nanopb/tests/oneof/encode_oneof.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/libs/nanopb/tests/oneof/encode_oneof.c b/libs/nanopb/tests/oneof/encode_oneof.c
new file mode 100644
index 0000000..913d2d4
--- /dev/null
+++ b/libs/nanopb/tests/oneof/encode_oneof.c
@@ -0,0 +1,64 @@
+/* Encode a message using oneof fields */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <pb_encode.h>
+#include "oneof.pb.h"
+#include "test_helpers.h"
+
+int main(int argc, char **argv)
+{
+ uint8_t buffer[OneOfMessage_size];
+ OneOfMessage msg = OneOfMessage_init_zero;
+ pb_ostream_t stream;
+ int option;
+
+ if (argc != 2)
+ {
+ fprintf(stderr, "Usage: encode_oneof [number]\n");
+ return 1;
+ }
+ option = atoi(argv[1]);
+
+ /* Prefix and suffix are used to test that the union does not disturb
+ * other fields in the same message. */
+ msg.prefix = 123;
+
+ /* We encode one of the 'values' fields based on command line argument */
+ if (option == 1)
+ {
+ msg.which_values = OneOfMessage_first_tag;
+ msg.values.first = 999;
+ }
+ else if (option == 2)
+ {
+ msg.which_values = OneOfMessage_second_tag;
+ strcpy(msg.values.second, "abcd");
+ }
+ else if (option == 3)
+ {
+ msg.which_values = OneOfMessage_third_tag;
+ msg.values.third.array_count = 5;
+ msg.values.third.array[0] = 1;
+ msg.values.third.array[1] = 2;
+ msg.values.third.array[2] = 3;
+ msg.values.third.array[3] = 4;
+ msg.values.third.array[4] = 5;
+ }
+
+ msg.suffix = 321;
+
+ stream = pb_ostream_from_buffer(buffer, sizeof(buffer));
+
+ if (pb_encode(&stream, OneOfMessage_fields, &msg))
+ {
+ SET_BINARY_MODE(stdout);
+ fwrite(buffer, 1, stream.bytes_written, stdout);
+ return 0;
+ }
+ else
+ {
+ fprintf(stderr, "Encoding failed: %s\n", PB_GET_ERROR(&stream));
+ return 1;
+ }
+}