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// Copyright (C) 2016-2017 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#include <config.h>
#include <gtest/gtest.h>
#include <dhcpsrv/parsers/simple_parser4.h>
#include <dhcp4/tests/dhcp4_test_utils.h>
#include <cc/data.h>
using namespace isc::data;
namespace isc {
namespace dhcp {
namespace test {
/// @brief DHCP Parser test fixture class
class SimpleParser4Test : public ::testing::Test {
public:
/// @brief Checks if specified map has an integer parameter with expected value
///
/// @param map map to be checked
/// @param param_name name of the parameter to be checked
/// @param exp_value expected value of the parameter.
void checkIntegerValue(const ConstElementPtr& map, const std::string& param_name,
int64_t exp_value) {
// First check if the passed element is a map.
ASSERT_EQ(Element::map, map->getType());
// Now try to get the element being checked
ConstElementPtr elem = map->get(param_name);
ASSERT_TRUE(elem);
// Now check if it's indeed integer
ASSERT_EQ(Element::integer, elem->getType());
// Finally, check if its value meets expectation.
EXPECT_EQ(exp_value, elem->intValue());
}
/// @brief Checks if specified map has a string parameter with expected value
///
/// @param map map to be checked
/// @param param_name name of the parameter to be checked
/// @param exp_value expected value of the parameter.
void checkStringValue(const ConstElementPtr& map, const std::string& param_name,
std::string exp_value) {
// First check if the passed element is a map.
ASSERT_EQ(Element::map, map->getType());
// Now try to get the element being checked
ConstElementPtr elem = map->get(param_name);
ASSERT_TRUE(elem);
// Now check if it's indeed integer
ASSERT_EQ(Element::string, elem->getType());
// Finally, check if its value meets expectation.
EXPECT_EQ(exp_value, elem->stringValue());
}
/// @brief Checks if specified map has a boolean parameter with expected value
///
/// @param map map to be checked
/// @param param_name name of the parameter to be checked
/// @param exp_value expected value of the parameter.
void checkBoolValue(const ConstElementPtr& map, const std::string& param_name,
bool exp_value) {
// First check if the passed element is a map.
ASSERT_EQ(Element::map, map->getType());
// Now try to get the element being checked
ConstElementPtr elem = map->get(param_name);
ASSERT_TRUE(elem);
// Now check if it's indeed integer
ASSERT_EQ(Element::boolean, elem->getType());
// Finally, check if its value meets expectation.
EXPECT_EQ(exp_value, elem->boolValue());
}
};
// This test checks if global defaults are properly set for DHCPv4.
TEST_F(SimpleParser4Test, globalDefaults4) {
ElementPtr empty = parseJSON("{ }");
size_t num = 0;
EXPECT_NO_THROW(num = SimpleParser4::setAllDefaults(empty));
// We expect at least 3 parameters to be inserted.
EXPECT_TRUE(num >= 3);
checkIntegerValue(empty, "valid-lifetime", 7200);
checkIntegerValue(empty, "rebind-timer", 1800);
checkIntegerValue(empty, "renew-timer", 900);
// Make sure that preferred-lifetime is not set for v4 (it's v6 only
// parameter)
EXPECT_FALSE(empty->get("preferred-lifetime"));
}
// This test checks if the parameters can be inherited from the global
// scope to the subnet scope.
TEST_F(SimpleParser4Test, inheritGlobalToSubnet4) {
ElementPtr global = parseJSON("{ \"renew-timer\": 1,"
" \"rebind-timer\": 2,"
" \"valid-lifetime\": 4,"
" \"subnet4\": [ { \"renew-timer\": 100 } ] "
"}");
ConstElementPtr subnets = global->find("subnet4");
ASSERT_TRUE(subnets);
ConstElementPtr subnet = subnets->get(0);
ASSERT_TRUE(subnet);
// we should inherit 3 parameters. Renew-timer should remain intact,
// as it was already defined in the subnet scope.
size_t num;
EXPECT_NO_THROW(num = SimpleParser4::deriveParameters(global));
EXPECT_EQ(2, num);
// Check the values. 2 of them are inherited, while the third one
// was already defined in the subnet, so should not be inherited.
checkIntegerValue(subnet, "renew-timer", 100);
checkIntegerValue(subnet, "rebind-timer", 2);
checkIntegerValue(subnet, "valid-lifetime", 4);
}
// This test checks if the parameters in "subnet4" are assigned default values
// if not explicitly specified.
TEST_F(SimpleParser4Test, subnetDefaults4) {
ElementPtr global = parseJSON("{ \"renew-timer\": 1,"
" \"rebind-timer\": 2,"
" \"valid-lifetime\": 4,"
" \"subnet4\": [ { } ] "
"}");
size_t num = 0;
EXPECT_NO_THROW(num = SimpleParser4::setAllDefaults(global));
EXPECT_LE(1, num); // at least 1 parameter has to be modified
ConstElementPtr subnets = global->find("subnet4");
ASSERT_TRUE(subnets);
ConstElementPtr subnet = subnets->get(0);
ASSERT_TRUE(subnet);
// we should have "id" parameter with the default value of 0 added for us.
checkIntegerValue(subnet, "id", 0);
}
// This test checks if the parameters in option-data are assigned default values
// if not explicitly specified.
TEST_F(SimpleParser4Test, optionDataDefaults4) {
ElementPtr global = parseJSON("{ \"renew-timer\": 1,"
" \"rebind-timer\": 2,"
" \"valid-lifetime\": 4,"
" \"option-data\": [ { } ] "
"}");
size_t num = 0;
EXPECT_NO_THROW(num = SimpleParser4::setAllDefaults(global));
EXPECT_LE(1, num); // at least 1 parameter has to be modified
ConstElementPtr options = global->find("option-data");
ASSERT_TRUE(options);
ConstElementPtr option = options->get(0);
ASSERT_TRUE(option);
// we should have appropriate default value set. See
// SimpleParser4::OPTION4_DEFAULTS for a list of default values.
checkStringValue(option, "space", "dhcp4");
checkBoolValue(option, "csv-format", true);
}
// This test checks if the parameters in option-data are assigned default values
// if not explicitly specified.
TEST_F(SimpleParser4Test, optionDefDefaults4) {
ElementPtr global = parseJSON("{ "
" \"option-def\": [ { } ] "
"}");
size_t num = 0;
EXPECT_NO_THROW(num = SimpleParser4::setAllDefaults(global));
EXPECT_LE(1, num); // at least 1 parameter has to be modified
ConstElementPtr defs = global->find("option-def");
ASSERT_TRUE(defs);
ASSERT_EQ(1, defs->size());
ConstElementPtr def = defs->get(0);
ASSERT_TRUE(def);
// we should have appropriate default value set. See
// SimpleParser4::OPTION4_DEFAULTS for a list of default values.
checkStringValue(def, "record-types", "");
checkStringValue(def, "space", "dhcp4");
checkStringValue(def, "encapsulate", "");
checkBoolValue(def, "array", false);
}
};
};
};
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