test_parser.cpp

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/// \file test_parser.cpp
/// \brief Модульные тесты для ParseCIDR() и IPToString().
 
#include "db.h"
#include <gtest/gtest.h>
 
#include <arpa/inet.h>
 
TEST(ParserTest, FullIP) {
  CIDR c = ParseCIDR("192.168.1.1");
  EXPECT_EQ(c.prefixlen, 32);
  EXPECT_EQ(c.ip, inet_addr("192.168.1.1"));
}
 
TEST(ParserTest, CIDR24) {
  CIDR c = ParseCIDR("192.168.1.0/24");
  EXPECT_EQ(c.prefixlen, 24);
  EXPECT_EQ(c.ip, inet_addr("192.168.1.0"));
}
 
TEST(ParserTest, CIDR16) {
  CIDR c = ParseCIDR("192.168.0.0/16");
  EXPECT_EQ(c.prefixlen, 16);
  EXPECT_EQ(c.ip, inet_addr("192.168.0.0"));
}
 
TEST(ParserTest, CIDR8) {
  CIDR c = ParseCIDR("10.0.0.0/8");
  EXPECT_EQ(c.prefixlen, 8);
  EXPECT_EQ(c.ip, inet_addr("10.0.0.0"));
}
 
TEST(ParserTest, SingleIP) {
  CIDR c = ParseCIDR("1.2.3.4");
  EXPECT_EQ(c.prefixlen, 32);
  EXPECT_EQ(c.ip, inet_addr("1.2.3.4"));
}
 
TEST(ParserTest, CIDR0) {
  CIDR c = ParseCIDR("0.0.0.0/0");
  EXPECT_EQ(c.prefixlen, 0);
  EXPECT_EQ(c.ip, 0);
}
 
TEST(ParserTest, Localhost) {
  CIDR c = ParseCIDR("127.0.0.1");
  EXPECT_EQ(c.prefixlen, 32);
  EXPECT_EQ(c.ip, inet_addr("127.0.0.1"));
}
 
TEST(ParserTest, IPToString) {
  EXPECT_EQ(IPToString(inet_addr("192.168.1.1")), "192.168.1.1");
  EXPECT_EQ(IPToString(inet_addr("10.0.0.0")), "10.0.0.0");
  EXPECT_EQ(IPToString(inet_addr("127.0.0.1")), "127.0.0.1");
}
 
TEST(ParserTest, InvalidIP) {
  EXPECT_THROW(ParseCIDR("not-an-ip"), std::invalid_argument);
}
 
TEST(ParserTest, InvalidPrefix) {
  EXPECT_THROW(ParseCIDR("10.0.0.0/33"), std::invalid_argument);
}
 
TEST(ParserTest, Prefixlen32) {
  CIDR c = ParseCIDR("10.10.10.10/32");
  EXPECT_EQ(c.prefixlen, 32);
  EXPECT_EQ(c.ip, inet_addr("10.10.10.10"));
}
 
TEST(ParserTest, NetworkByteOrder) {
  CIDR c = ParseCIDR("10.0.0.0/8");
  uint32_t host_ip = 0x0a000000;
  uint32_t net_ip = htonl(host_ip);
  EXPECT_EQ(c.ip, net_ip);
}