libmsgpack/msgpack-c/test/user_class.cpp

#include <msgpack.hpp>
#include <string>
#include <cmath>

#include <gtest/gtest.h>

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif



using namespace std;

const unsigned int kLoop = 1000;
const unsigned int kElements = 100;
const double kEPS = 1e-10;

// User-Defined Structures

class TestEnumMemberClass
{
public:
  TestEnumMemberClass()
    : t1(STATE_A), t2(STATE_B), t3(STATE_C) {}

  enum TestEnumType {
    STATE_INVALID = 0,
    STATE_A = 1,
    STATE_B = 2,
    STATE_C = 3
  };
  TestEnumType t1;
  TestEnumType t2;
  TestEnumType t3;

  MSGPACK_DEFINE(t1, t2, t3);
};

MSGPACK_ADD_ENUM(TestEnumMemberClass::TestEnumType);

class TestClass
{
public:
  TestClass() : i(0), s("kzk") {}
  int i;
  string s;
  MSGPACK_DEFINE(i, s);
};

TEST(MSGPACK_USER_DEFINED, simple_buffer_class)
{
  for (unsigned int k = 0; k < kLoop; k++) {
    TestClass val1;
    msgpack::sbuffer sbuf;
    msgpack::pack(sbuf, val1);
    msgpack::unpacked ret;
    msgpack::unpack(ret, sbuf.data(), sbuf.size());
    TestClass val2 = ret.get().as<TestClass>();
    EXPECT_EQ(val1.i, val2.i);
    EXPECT_EQ(val1.s, val2.s);
  }
}

class TestClass2
{
public:
  TestClass2() : i(0), s("kzk") {
    for (unsigned int i = 0; i < kElements; i++)
      v.push_back(rand());
  }
  int i;
  string s;
  vector<int> v;
  MSGPACK_DEFINE(i, s, v);
};

TEST(MSGPACK_USER_DEFINED, simple_buffer_class_old_to_new)
{
  for (unsigned int k = 0; k < kLoop; k++) {
    TestClass val1;
    msgpack::sbuffer sbuf;
    msgpack::pack(sbuf, val1);
    msgpack::unpacked ret;
    msgpack::unpack(ret, sbuf.data(), sbuf.size());
    TestClass2 val2 = ret.get().as<TestClass2>();
    EXPECT_EQ(val1.i, val2.i);
    EXPECT_EQ(val1.s, val2.s);
    EXPECT_FALSE(val2.s.empty());
  }
}

TEST(MSGPACK_USER_DEFINED, simple_buffer_class_new_to_old)
{
  for (unsigned int k = 0; k < kLoop; k++) {
    TestClass2 val1;
    msgpack::sbuffer sbuf;
    msgpack::pack(sbuf, val1);
    msgpack::unpacked ret;
    msgpack::unpack(ret, sbuf.data(), sbuf.size());
    TestClass val2 = ret.get().as<TestClass>();
    EXPECT_EQ(val1.i, val2.i);
    EXPECT_EQ(val1.s, val2.s);
    EXPECT_FALSE(val2.s.empty());
  }
}

TEST(MSGPACK_USER_DEFINED, simple_buffer_enum_member)
{
  TestEnumMemberClass val1;
  msgpack::sbuffer sbuf;
  msgpack::pack(sbuf, val1);
  msgpack::unpacked ret;
  msgpack::unpack(ret, sbuf.data(), sbuf.size());
  TestEnumMemberClass val2 = ret.get().as<TestEnumMemberClass>();
  EXPECT_EQ(val1.t1, val2.t1);
  EXPECT_EQ(val1.t2, val2.t2);
  EXPECT_EQ(val1.t3, val2.t3);
}

class TestUnionMemberClass
{
public:
  TestUnionMemberClass() {}
  TestUnionMemberClass(double f) {
    is_double = true;
    value.f = f;
  }
  TestUnionMemberClass(int i) {
    is_double = false;
    value.i = i;
  }

  union {
    double f;
    int i;
  } value;
  bool is_double;

  template <typename Packer>
  void msgpack_pack(Packer& pk) const
  {
    if (is_double)
      pk.pack(msgpack::type::tuple<bool, double>(true, value.f));
    else
      pk.pack(msgpack::type::tuple<bool, int>(false, value.i));
  }

  void msgpack_unpack(msgpack::object o)
  {
    msgpack::type::tuple<bool, msgpack::object> tuple;
    o.convert(tuple);

    is_double = tuple.get<0>();
    if (is_double)
      tuple.get<1>().convert(value.f);
    else
      tuple.get<1>().convert(value.i);
  }
};

TEST(MSGPACK_USER_DEFINED, simple_buffer_union_member)
{
  {
    // double
    TestUnionMemberClass val1(1.0);
    msgpack::sbuffer sbuf;
    msgpack::pack(sbuf, val1);
    msgpack::unpacked ret;
    msgpack::unpack(ret, sbuf.data(), sbuf.size());
    TestUnionMemberClass val2 = ret.get().as<TestUnionMemberClass>();
    EXPECT_EQ(val1.is_double, val2.is_double);
    EXPECT_TRUE(fabs(val1.value.f - val2.value.f) < kEPS);
  }
  {
    // int
    TestUnionMemberClass val1(1);
    msgpack::sbuffer sbuf;
    msgpack::pack(sbuf, val1);
    msgpack::unpacked ret;
    msgpack::unpack(ret, sbuf.data(), sbuf.size());
    TestUnionMemberClass val2 = ret.get().as<TestUnionMemberClass>();
    EXPECT_EQ(val1.is_double, val2.is_double);
    EXPECT_EQ(val1.value.i, 1);
    EXPECT_EQ(val1.value.i, val2.value.i);
  }
}

// inheritance

// define

struct d_top {
    int t;
    MSGPACK_DEFINE(t);
};

struct d_mid1 : d_top {
    int m1;
    MSGPACK_DEFINE(MSGPACK_BASE(d_top), m1);
};

struct d_mid2 : d_top {
    int m2;
    MSGPACK_DEFINE(m2, MSGPACK_BASE(d_top));
};

struct d_bottom : d_mid1, d_mid2 {
    int b;
    MSGPACK_DEFINE(MSGPACK_BASE(d_mid1), MSGPACK_BASE(d_mid2), b);
};

TEST(MSGPACK_INHERIT, define_non_virtual)
{
    d_bottom b;
    b.b = 1;
    b.m1 = 2;
    b.m2 = 3;
    b.d_mid1::t = 4;
    b.d_mid2::t = 5;
    msgpack::sbuffer sbuf;
    msgpack::pack(sbuf, b);
    msgpack::unpacked ret;
    msgpack::unpack(ret, sbuf.data(), sbuf.size());
    d_bottom br = ret.get().as<d_bottom>();
    EXPECT_EQ(b.b, br.b);
    EXPECT_EQ(b.m1, br.m1);
    EXPECT_EQ(b.m2, br.m2);
    EXPECT_EQ(b.d_mid1::t, br.d_mid1::t);
    EXPECT_EQ(b.d_mid2::t, br.d_mid2::t);
}

struct v_d_top {
    int t;
    MSGPACK_DEFINE(t);
};

struct v_d_mid1 : virtual v_d_top {
    int m1;
    MSGPACK_DEFINE(m1);
};

struct v_d_mid2 : virtual v_d_top {
    int m2;
    MSGPACK_DEFINE(m2);
};

struct v_d_bottom : v_d_mid1, v_d_mid2 {
    int b;
    MSGPACK_DEFINE(MSGPACK_BASE(v_d_mid1), MSGPACK_BASE(v_d_mid2), MSGPACK_BASE(v_d_top), b);
};

TEST(MSGPACK_INHERIT, define_virtual)
{
    v_d_bottom b;
    b.b = 1;
    b.m1 = 2;
    b.m2 = 3;
    b.t = 4;
    msgpack::sbuffer sbuf;
    msgpack::pack(sbuf, b);
    msgpack::unpacked ret;
    msgpack::unpack(ret, sbuf.data(), sbuf.size());
    v_d_bottom br = ret.get().as<v_d_bottom>();
    EXPECT_EQ(b.b, br.b);
    EXPECT_EQ(b.m1, br.m1);
    EXPECT_EQ(b.m2, br.m2);
    EXPECT_EQ(b.t, br.t);
}

// define_array

struct da_top {
    int t;
    MSGPACK_DEFINE_ARRAY(t);
};

struct da_mid1 : da_top {
    int m1;
    MSGPACK_DEFINE_ARRAY(MSGPACK_BASE_ARRAY(da_top), m1);
};

struct da_mid2 : da_top {
    int m2;
    MSGPACK_DEFINE_ARRAY(m2, MSGPACK_BASE_ARRAY(da_top));
};

struct da_bottom : da_mid1, da_mid2 {
    int b;
    MSGPACK_DEFINE_ARRAY(MSGPACK_BASE_ARRAY(da_mid1), MSGPACK_BASE_ARRAY(da_mid2), b);
};

TEST(MSGPACK_INHERIT, define_array_non_virtual)
{
    da_bottom b;
    b.b = 1;
    b.m1 = 2;
    b.m2 = 3;
    b.da_mid1::t = 4;
    b.da_mid2::t = 5;
    msgpack::sbuffer sbuf;
    msgpack::pack(sbuf, b);
    msgpack::unpacked ret;
    msgpack::unpack(ret, sbuf.data(), sbuf.size());
    da_bottom br = ret.get().as<da_bottom>();
    EXPECT_EQ(b.b, br.b);
    EXPECT_EQ(b.m1, br.m1);
    EXPECT_EQ(b.m2, br.m2);
    EXPECT_EQ(b.da_mid1::t, br.da_mid1::t);
    EXPECT_EQ(b.da_mid2::t, br.da_mid2::t);
}

struct v_da_top {
    int t;
    MSGPACK_DEFINE_ARRAY(t);
};

struct v_da_mid1 : virtual v_da_top {
    int m1;
    MSGPACK_DEFINE_ARRAY(m1);
};

struct v_da_mid2 : virtual v_da_top {
    int m2;
    MSGPACK_DEFINE_ARRAY(m2);
};

struct v_da_bottom : v_da_mid1, v_da_mid2 {
    int b;
    MSGPACK_DEFINE_ARRAY(MSGPACK_BASE_ARRAY(v_da_mid1), MSGPACK_BASE_ARRAY(v_da_mid2), MSGPACK_BASE_ARRAY(v_da_top), b);
};

TEST(MSGPACK_INHERIT, define_array_virtual)
{
    v_da_bottom b;
    b.b = 1;
    b.m1 = 2;
    b.m2 = 3;
    b.t = 4;
    msgpack::sbuffer sbuf;
    msgpack::pack(sbuf, b);
    msgpack::unpacked ret;
    msgpack::unpack(ret, sbuf.data(), sbuf.size());
    v_da_bottom br = ret.get().as<v_da_bottom>();
    EXPECT_EQ(b.b, br.b);
    EXPECT_EQ(b.m1, br.m1);
    EXPECT_EQ(b.m2, br.m2);
    EXPECT_EQ(b.t, br.t);
}

// define_map

struct dm_top {
    int t;
    MSGPACK_DEFINE_MAP(t);
};

struct dm_mid1 : dm_top {
    int m1;
    MSGPACK_DEFINE_MAP(MSGPACK_BASE_MAP(dm_top), m1);
};

struct dm_mid2 : dm_top {
    int m2;
    MSGPACK_DEFINE_MAP(m2, MSGPACK_BASE_MAP(dm_top));
};

struct dm_bottom : dm_mid1, dm_mid2 {
    int b;
    MSGPACK_DEFINE_MAP(MSGPACK_BASE_MAP(dm_mid1), MSGPACK_BASE_MAP(dm_mid2), b);
};

TEST(MSGPACK_INHERIT, define_map_non_virtual)
{
    dm_bottom b;
    b.b = 1;
    b.m1 = 2;
    b.m2 = 3;
    b.dm_mid1::t = 4;
    b.dm_mid2::t = 5;
    msgpack::sbuffer sbuf;
    msgpack::pack(sbuf, b);
    msgpack::unpacked ret;
    msgpack::unpack(ret, sbuf.data(), sbuf.size());
    dm_bottom br = ret.get().as<dm_bottom>();
    EXPECT_EQ(b.b, br.b);
    EXPECT_EQ(b.m1, br.m1);
    EXPECT_EQ(b.m2, br.m2);
    EXPECT_EQ(b.dm_mid1::t, br.dm_mid1::t);
    EXPECT_EQ(b.dm_mid2::t, br.dm_mid2::t);
}

struct v_dm_top {
    int t;
    MSGPACK_DEFINE_MAP(t);
};

struct v_dm_mid1 : virtual v_dm_top {
    int m1;
    MSGPACK_DEFINE_MAP(m1);
};

struct v_dm_mid2 : virtual v_dm_top {
    int m2;
    MSGPACK_DEFINE_MAP(m2);
};

struct v_dm_bottom : v_dm_mid1, v_dm_mid2 {
    int b;
    MSGPACK_DEFINE_MAP(MSGPACK_BASE_MAP(v_dm_mid1), MSGPACK_BASE_MAP(v_dm_mid2), MSGPACK_BASE_MAP(v_dm_top), b);
};

TEST(MSGPACK_INHERIT, define_map_virtual)
{
    v_dm_bottom b;
    b.b = 1;
    b.m1 = 2;
    b.m2 = 3;
    b.t = 4;
    msgpack::sbuffer sbuf;
    msgpack::pack(sbuf, b);
    msgpack::unpacked ret;
    msgpack::unpack(ret, sbuf.data(), sbuf.size());
    v_dm_bottom br = ret.get().as<v_dm_bottom>();
    EXPECT_EQ(b.b, br.b);
    EXPECT_EQ(b.m1, br.m1);
    EXPECT_EQ(b.m2, br.m2);
    EXPECT_EQ(b.t, br.t);
}

// map migration

struct s_v1 {
    int i;
    std::string s;
    s_v1():i(42), s("foo") {}
    MSGPACK_DEFINE_MAP(i, s);
};

struct s_v2 {
    char c; // new member variable
    std::string s;
    int i;
    s_v2():c('A'), s("bar"), i(77) {}
    MSGPACK_DEFINE_MAP(c, s, i); // variable added, order changed
};

TEST(MSGPACK_MIGRATION, order_number_changed)
{
    s_v1 v1;
    msgpack::sbuffer sbuf;
    msgpack::pack(sbuf, v1);

    msgpack::unpacked ret;
    msgpack::unpack(ret, sbuf.data(), sbuf.size());
    s_v2 v2 = ret.get().as<s_v2>();

    EXPECT_EQ(v2.c, 'A');
    EXPECT_EQ(v2.s, "foo"); // from v1
    EXPECT_EQ(v2.i, 42);    // from v1
}