// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <google/protobuf/unittest.pb.h>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <google/protobuf/descriptor.h>
namespace google {
namespace protobuf {
namespace compiler {
namespace cpp {
// Can't use an anonymous namespace here due to brokenness of Tru64 compiler.
namespace cpp_unittest {
#if !defined(GOOGLE_CHECK_MESSAGE_SIZE)
#define GOOGLE_CHECK_MESSAGE_SIZE(t, expected)
#endif
// Mock structures to lock down the size of messages in a platform-independent
// way. The commented sizes only apply when build with clang x86_64.
struct MockMessageBase {
virtual ~MockMessageBase() = default; // 8 bytes vtable
void* internal_metadata; // 8 bytes
};
GOOGLE_CHECK_MESSAGE_SIZE(MockMessageBase, 16);
struct MockZeroFieldsBase : public MockMessageBase {
int cached_size; // 4 bytes
// + 4 bytes padding
};
GOOGLE_CHECK_MESSAGE_SIZE(MockZeroFieldsBase, 24);
struct MockExtensionSet {
void* arena; // 8 bytes
int16_t capacity; // 4 bytes
int16_t size; // 4 bytes
void* data; // 8 bytes
};
GOOGLE_CHECK_MESSAGE_SIZE(MockExtensionSet, 24);
struct MockRepeatedPtrField {
void* arena; // 8 bytes
int current_size; // 4 bytes
int total_size; // 4 bytes
void* data; // 8 bytes
};
GOOGLE_CHECK_MESSAGE_SIZE(MockRepeatedPtrField, 24);
struct MockRepeatedField {
int current_size; // 4 bytes
int total_size; // 4 bytes
void* data; // 8 bytes
};
GOOGLE_CHECK_MESSAGE_SIZE(MockRepeatedField, 16);
TEST(GeneratedMessageTest, MockSizes) {
// Consistency checks -- if these fail, the tests below will definitely fail.
GOOGLE_CHECK_EQ(sizeof(MessageLite), sizeof(MockMessageBase));
GOOGLE_CHECK_EQ(sizeof(Message), sizeof(MockMessageBase));
GOOGLE_CHECK_EQ(sizeof(internal::ZeroFieldsBase), sizeof(MockZeroFieldsBase));
GOOGLE_CHECK_EQ(sizeof(internal::ExtensionSet), sizeof(MockExtensionSet));
GOOGLE_CHECK_EQ(sizeof(RepeatedPtrField<std::string>), sizeof(MockRepeatedPtrField));
GOOGLE_CHECK_EQ(sizeof(RepeatedField<int>), sizeof(MockRepeatedField));
}
TEST(GeneratedMessageTest, EmptyMessageSize) {
EXPECT_EQ(sizeof(protobuf_unittest::TestEmptyMessage),
sizeof(MockZeroFieldsBase));
}
TEST(GeneratedMessageTest, ReservedSize) {
EXPECT_EQ(sizeof(protobuf_unittest::TestReservedFields),
sizeof(MockZeroFieldsBase));
}
TEST(GeneratedMessageTest, EmptyMessageWithExtensionsSize) {
struct MockGenerated : public MockMessageBase { // 16 bytes
MockExtensionSet extensions; // 24 bytes
int cached_size; // 4 bytes
// + 4 bytes of padding
};
GOOGLE_CHECK_MESSAGE_SIZE(MockGenerated, 48);
EXPECT_EQ(sizeof(protobuf_unittest::TestEmptyMessageWithExtensions),
sizeof(MockGenerated));
}
TEST(GeneratedMessageTest, RecursiveMessageSize) {
struct MockGenerated : public MockMessageBase { // 16 bytes
int has_bits[1]; // 4 bytes
int cached_size; // 4 bytes
void* a; // 8 bytes
int32_t i; // 4 bytes
// + 4 bytes padding
};
GOOGLE_CHECK_MESSAGE_SIZE(MockGenerated, 40);
EXPECT_EQ(sizeof(protobuf_unittest::TestRecursiveMessage),
sizeof(MockGenerated));
}
TEST(GeneratedMessageTest, OneStringSize) {
struct MockGenerated : public MockMessageBase { // 16 bytes
int has_bits[1]; // 4 bytes
int cached_size; // 4 bytes
void* data; // 8 bytes
};
GOOGLE_CHECK_MESSAGE_SIZE(MockGenerated, 32);
EXPECT_EQ(sizeof(protobuf_unittest::OneString), sizeof(MockGenerated));
}
TEST(GeneratedMessageTest, MoreStringSize) {
struct MockGenerated : public MockMessageBase { // 16 bytes
int has_bits[1]; // 4 bytes
int cached_size; // 4 bytes
MockRepeatedPtrField data; // 24 bytes
};
GOOGLE_CHECK_MESSAGE_SIZE(MockGenerated, 48);
EXPECT_EQ(sizeof(protobuf_unittest::MoreString), sizeof(MockGenerated));
}
TEST(GeneratedMessageTest, Int32MessageSize) {
struct MockGenerated : public MockMessageBase { // 16 bytes
int has_bits[1]; // 4 bytes
int cached_size; // 4 bytes
int32_t data; // 4 bytes
// + 4 bytes padding
};
GOOGLE_CHECK_MESSAGE_SIZE(MockGenerated, 32);
EXPECT_EQ(sizeof(protobuf_unittest::Int32Message), sizeof(MockGenerated));
}
TEST(GeneratedMessageTest, Int64MessageSize) {
struct MockGenerated : public MockMessageBase { // 16 bytes
int has_bits[1]; // 4 bytes
int cached_size; // 4 bytes
int64_t data; // 8 bytes
};
GOOGLE_CHECK_MESSAGE_SIZE(MockGenerated, 32);
EXPECT_EQ(sizeof(protobuf_unittest::Int64Message), sizeof(MockGenerated));
}
TEST(GeneratedMessageTest, BoolMessageSize) {
struct MockGenerated : public MockMessageBase { // 16 bytes
int has_bits[1]; // 4 bytes
int cached_size; // 4 bytes
bool data; // 1 byte
// + 3 bytes padding
};
GOOGLE_CHECK_MESSAGE_SIZE(MockGenerated, 32);
EXPECT_EQ(sizeof(protobuf_unittest::BoolMessage), sizeof(MockGenerated));
}
TEST(GeneratedMessageTest, OneofSize) {
struct MockGenerated : public MockMessageBase { // 16 bytes
void* foo; // 8 bytes
int cached_size; // 4 bytes
uint32_t oneof_case[1]; // 4 bytes
};
GOOGLE_CHECK_MESSAGE_SIZE(MockGenerated, 32);
EXPECT_EQ(sizeof(protobuf_unittest::TestOneof), sizeof(MockGenerated));
}
TEST(GeneratedMessageTest, Oneof2Size) {
struct MockGenerated : public MockMessageBase { // 16 bytes
int has_bits[1]; // 4 bytes
int cached_size; // 4 bytes
void* baz_string; // 8 bytes
int32_t baz_int; // 4 bytes
// + 4 bytes padding
void* foo; // 8 bytes
void* bar; // 8 bytes
uint32_t oneof_case[2]; // 8 bytes
};
GOOGLE_CHECK_MESSAGE_SIZE(MockGenerated, 64);
EXPECT_EQ(sizeof(protobuf_unittest::TestOneof2), sizeof(MockGenerated));
}
TEST(GeneratedMessageTest, FieldOrderingsSize) {
struct MockGenerated : public MockMessageBase { // 16 bytes
int has_bits[1]; // 4 bytes
int cached_size; // 4 bytes
MockExtensionSet extensions; // 24 bytes
void* my_string; // 8 bytes
void* optional_nested_message; // 8 bytes
int64_t my_int; // 8 bytes
float my_float; // 4 bytes
// + 4 bytes of padding
};
GOOGLE_CHECK_MESSAGE_SIZE(MockGenerated, 80);
EXPECT_EQ(sizeof(protobuf_unittest::TestFieldOrderings), sizeof(MockGenerated));
}
TEST(GeneratedMessageTest, TestMessageSize) {
// We expect the message to contain (not in this order):
struct MockGenerated : public MockMessageBase { // 16 bytes
int has_bits[1]; // 4 bytes
int cached_size; // 4 bytes
void* m4; // 8 bytes
int64_t m2; // 8 bytes
bool m1; // 1 bytes
bool m3; // 1 bytes
// + 2 bytes padding
int m5; // 4 bytes
int64_t m6; // 8 bytes
};
GOOGLE_CHECK_MESSAGE_SIZE(MockGenerated, 56);
EXPECT_EQ(sizeof(protobuf_unittest::TestMessageSize), sizeof(MockGenerated));
}
TEST(GeneratedMessageTest, PackedTypesSize) {
struct MockGenerated : public MockMessageBase { // 16 bytes
MockRepeatedField packed_int32; // 16 bytes
int packed_int32_cached_byte_size; // 4 bytes + 4 bytes padding
MockRepeatedField packed_int64; // 16 bytes
int packed_int64_cached_byte_size; // 4 bytes + 4 bytes padding
MockRepeatedField packed_uint32; // 16 bytes
int packed_uint32_cached_byte_size; // 4 bytes + 4 bytes padding
MockRepeatedField packed_uint64; // 16 bytes
int packed_uint64_cached_byte_size; // 4 bytes + 4 bytes padding
MockRepeatedField packed_sint32; // 16 bytes
int packed_sint32_cached_byte_size; // 4 bytes + 4 bytes padding
MockRepeatedField packed_sint64; // 16 bytes
int packed_sint64_cached_byte_size; // 4 bytes + 4 bytes padding
MockRepeatedField packed_fixed32; // 16 bytes
MockRepeatedField packed_fixed64; // 16 bytes
MockRepeatedField packed_sfixed32; // 16 bytes
MockRepeatedField packed_sfixed64; // 16 bytes
MockRepeatedField packed_float; // 16 bytes
MockRepeatedField packed_double; // 16 bytes
MockRepeatedField packed_bool; // 16 bytes
MockRepeatedField packed_enum; // 16 bytes
int packed_enum_cached_byte_size; // 4 bytes
int cached_size; // 4 bytes
};
GOOGLE_CHECK_MESSAGE_SIZE(MockGenerated, 16 * 15 + 8 * 6 + 8);
EXPECT_EQ(sizeof(protobuf_unittest::TestPackedTypes), sizeof(MockGenerated));
}
} // namespace cpp_unittest
} // namespace cpp
} // namespace compiler
} // namespace protobuf
} // namespace google
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