PowerShell/src/libpsl-native/test/test-getfullyqualifiedname.cpp

//! @file test-getfullyqualifiedname.cpp
//! @author George Fleming <v-geflem@microsoft.com>
//! @brief Unit tests for GetFullyQualifiedName

#include <gtest/gtest.h>
#include "getcomputername.h"
#include "getfullyqualifiedname.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <string>

TEST(GetFullyQualifiedNameTest, ValidateLinuxGetFullyQualifiedDomainName)
{
    std::string actual(GetFullyQualifiedName());

    std::string hostname(GetComputerName());

    // FQDN starts with hostname (which may be fully qualified)
    EXPECT_LE(hostname, actual);

    // hostname did not include domain name, so test it separately
    if (hostname < actual)
    {
        struct addrinfo hints, *info;
        memset(&hints, 0, sizeof(hints));
        hints.ai_family = AF_UNSPEC;
        hints.ai_socktype = SOCK_STREAM;
        hints.ai_flags = AI_CANONNAME;
        EXPECT_FALSE(getaddrinfo(hostname.c_str(), "http", &hints, &info));

        // Compare canonical name to FQDN
        EXPECT_STREQ(info->ai_canonname, actual.c_str());

        freeaddrinfo(info);
    }
}