Import of the watch repository from Pebble

third_party/nanopb/tests/proto3_optional/SConscript

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+# Test proto3 "optional" field types.
+# This is supported in protoc 3.12 and newer.
+
+Import('env')
+import re
+
+version = None
+if 'PROTOC_VERSION' in env:
+    match = re.search('([0-9]+).([0-9]+).([0-9]+)', env['PROTOC_VERSION'])
+    version = (int(match.group(1)), int(match.group(2)), int(match.group(3)))
+
+# Oneof is supported by protoc >= 3.12.0
+if env.GetOption('clean') or (version and (version[0] > 3 or (version[0] == 3 and version[1] >= 12))):
+    
+    env2 = env.Clone()
+    env2.Append(PROTOCFLAGS = "--experimental_allow_proto3_optional")
+    
+    env2.NanopbProto("optional.proto")
+    opt = env2.Program(["optional.c", "optional.pb.c",
+                     "$COMMON/pb_decode.o", "$COMMON/pb_encode.o",
+                     "$COMMON/pb_common.o"])
+    env2.RunTest(opt)
+
+

third_party/nanopb/tests/proto3_optional/optional.c

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+#include <pb_encode.h>
+#include <pb_decode.h>
+#include <unittests.h>
+#include "optional.pb.h"
+
+int main()
+{
+    int status = 0;
+    uint8_t buf[256];
+    size_t msglen;
+    
+    COMMENT("Test encoding message with optional field")
+    {
+        pb_ostream_t stream = pb_ostream_from_buffer(buf, sizeof(buf));
+        TestMessage msg = TestMessage_init_zero;
+        
+        msg.has_opt_int = true;
+        msg.opt_int = 99;
+        msg.normal_int = 100;
+        msg.opt_int2 = 101;
+        
+        TEST(pb_encode(&stream, TestMessage_fields, &msg));
+        msglen = stream.bytes_written;
+    }
+    
+    COMMENT("Test decoding message with optional field")
+    {
+        pb_istream_t stream = pb_istream_from_buffer(buf, msglen);
+        TestMessage msg = TestMessage_init_zero;
+        
+        /* These fields should be missing from the message
+         * so the values wouldn't be overwritten. */
+        msg.opt_int2 = 5;
+        msg.normal_int2 = 6;
+        
+        TEST(pb_decode_noinit(&stream, TestMessage_fields, &msg));
+        TEST(msg.has_opt_int);
+        TEST(msg.opt_int == 99);
+        TEST(msg.normal_int == 100);
+        TEST(!msg.has_opt_int2);
+        TEST(msg.opt_int2 == 5);
+        TEST(msg.normal_int2 == 6);
+    }
+
+    return status;
+}
+

third_party/nanopb/tests/proto3_optional/optional.proto

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+syntax = "proto3";
+
+message TestMessage {
+    optional int32 opt_int = 1;
+    int32 normal_int = 2;
+    optional int32 opt_int2 = 3;
+    int32 normal_int2 = 4;
+}
+