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// Copyright (C) 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/.
#ifndef TEST_TO_ELEMENT_H
#define TEST_TO_ELEMENT_H
#include <cc/data.h>
#include <cc/cfg_to_element.h>
#include <gtest/gtest.h>
#include <string>
#ifdef HAVE_IS_BASE_OF
#include <type_traits>
#endif
#ifndef CONFIG_H_WAS_INCLUDED
#error config.h must be included before test_to_element.h
#endif
namespace isc {
namespace test {
/// @brief Return the difference between two strings
///
/// Use the gtest >= 1.8.0 tool which builds the difference between
/// two vectors of lines.
///
/// @param left left string
/// @param right right string
/// @return the unified diff between left and right
std::string generateDiff(std::string left, std::string right);
/// @brief Run a test using toElement() method with a string
///
/// @tparam Cfg the class implementing the toElement() method
/// @param expected the expected textual value
/// @param cfg an instance of the Cfg class
template<typename Cfg>
void runToElementTest(const std::string& expected, const Cfg& cfg) {
using namespace isc::data;
#ifdef HAVE_IS_BASE_OF
static_assert(std::is_base_of<CfgToElement, Cfg>::value,
"CfgToElement is not a base of the template parameter");
#endif
ConstElementPtr json;
ASSERT_NO_THROW(json = Element::fromJSON(expected)) << expected;
ConstElementPtr unparsed;
ASSERT_NO_THROW(unparsed = cfg.toElement());
if (!isEquivalent(json, unparsed)) {
std::string wanted = prettyPrint(json);
std::string got = prettyPrint(unparsed);
ADD_FAILURE() << "Expected:\n" << wanted << "\n"
<< "Actual:\n" << got
#ifdef HAVE_CREATE_UNIFIED_DIFF
<< "\nDiff:\n" << generateDiff(wanted, got)
#endif
<< "\n";
}
}
/// @brief Run a test using toElement() method with an Element
///
/// @tparam Cfg the class implementing the toElement() method
/// @param expected the expected element value
/// @param cfg an instance of the Cfg class
template<typename Cfg>
void runToElementTest(isc::data::ConstElementPtr expected, const Cfg& cfg) {
#ifdef HAVE_IS_BASE_OF
static_assert(std::is_base_of<isc::data::CfgToElement, Cfg>::value,
"CfgToElement is not a base of the template parameter");
#endif
isc::data::ConstElementPtr unparsed;
ASSERT_NO_THROW(unparsed = cfg.toElement());
if (!isEquivalent(expected, unparsed)) {
std::string wanted = prettyPrint(expected);
std::string got = prettyPrint(unparsed);
ADD_FAILURE() << "Expected:\n" << wanted << "\n"
<< "Actual:\n" << got
#ifdef HAVE_CREATE_UNIFIED_DIFF
<< "\nDiff:\n" << generateDiff(wanted, got)
#endif
<< "\n";
}
}
}; // end of isc::test namespace
}; // end of isc namespace
#endif // TEST_TO_ELEMENT_H
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