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/*
* JsonComparer.cpp, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#include "StdInc.h"
#include "JsonComparer.h"
#include "../lib/ScopeGuard.h"
//JsonComparer
JsonComparer::JsonComparer(bool strict_)
: strict(strict_)
{
}
vstd::ScopeGuard<JsonComparer::TScopeGuard> JsonComparer::pushName(const std::string & name)
{
namePath.push_back(name);
return vstd::makeScopeGuard<TScopeGuard>([this](){namePath.pop_back();});
}
std::string JsonComparer::buildMessage(const std::string & message)
{
std::stringstream buf;
for(auto & s : namePath)
buf << s << "|";
buf << " " << message;
return buf.str();
}
bool JsonComparer::isEmpty(const JsonNode & value)
{
switch (value.getType())
{
case JsonNode::JsonType::DATA_NULL:
return true;
case JsonNode::JsonType::DATA_BOOL:
return !value.Bool();
case JsonNode::JsonType::DATA_FLOAT:
return vstd::isAlmostEqual(value.Float(), 0.0);
case JsonNode::JsonType::DATA_INTEGER:
return value.Integer() == 0;
case JsonNode::JsonType::DATA_STRING:
return value.String() == "";
case JsonNode::JsonType::DATA_VECTOR:
return value.Vector().empty();
case JsonNode::JsonType::DATA_STRUCT:
return value.Struct().empty();
break;
default:
EXPECT_TRUE(false) << "Unknown Json type";
return false;
}
}
void JsonComparer::check(const bool condition, const std::string & message)
{
if(!condition)
{
if(strict)
{
GTEST_FAIL() << buildMessage(message);
}
else
{
ADD_FAILURE() << buildMessage(message);
}
}
}
void JsonComparer::checkEqualInteger(const si64 actual, const si64 expected)
{
if(actual != expected)
{
check(false, boost::str(boost::format("actual: '%d' ,expected: '%d'") % actual % expected));
}
}
void JsonComparer::checkEqualFloat(const double actual, const double expected)
{
if(std::abs(actual - expected) > 1e-8)
{
check(false, boost::str(boost::format("actual: '%lf' ,expected: '%lf' (diff %lf)") % actual % expected % (expected - actual)));
}
}
void JsonComparer::checkEqualString(const std::string & actual, const std::string & expected)
{
if(actual != expected)
{
check(false, boost::str(boost::format("actual: '%s' , expected: '%s'") % actual % expected));
}
}
void JsonComparer::checkEqualJson(const JsonMap & actual, const JsonMap & expected)
{
for(const auto & p : expected)
checkStructField(actual, p.first, p.second);
for(const auto & p : actual)
checkExcessStructField(p.second, p.first, expected);
}
void JsonComparer::checkEqualJson(const JsonVector & actual, const JsonVector & expected)
{
check(actual.size() == expected.size(), "size mismatch");
size_t sz = std::min(actual.size(), expected.size());
for(size_t idx = 0; idx < sz; idx ++)
{
auto guard = pushName(std::to_string(idx));
checkEqualJson(actual.at(idx), expected.at(idx));
}
}
void JsonComparer::checkEqualJson(const JsonNode & actual, const JsonNode & expected)
{
//name has been pushed before
const bool validType = actual.getType() == expected.getType();
//do detail checks avoiding assertions in JsonNode
if(validType)
{
switch (actual.getType())
{
case JsonNode::JsonType::DATA_NULL:
break; //do nothing
case JsonNode::JsonType::DATA_BOOL:
check(actual.Bool() == expected.Bool(), "mismatch");
break;
case JsonNode::JsonType::DATA_FLOAT:
checkEqualFloat(actual.Float(),expected.Float());
break;
case JsonNode::JsonType::DATA_STRING:
checkEqualString(actual.String(),expected.String());
break;
case JsonNode::JsonType::DATA_VECTOR:
checkEqualJson(actual.Vector(), expected.Vector());
break;
case JsonNode::JsonType::DATA_STRUCT:
checkEqualJson(actual.Struct(), expected.Struct());
break;
case JsonNode::JsonType::DATA_INTEGER:
checkEqualInteger(actual.Integer(), expected.Integer());
break;
default:
check(false, "Unknown Json type");
break;
}
}
else if(actual.isNumber() && expected.isNumber())
{
checkEqualFloat(actual.Float(),expected.Float());
}
else
{
check(false, "type mismatch. \n expected:\n"+expected.toCompactString()+"\n actual:\n" +actual.toCompactString());
}
}
void JsonComparer::checkExcessStructField(const JsonNode & actualValue, const std::string & name, const JsonMap & expected)
{
auto guard = pushName(name);
if(!vstd::contains(expected, name))
check(isEmpty(actualValue), "excess");
}
void JsonComparer::checkStructField(const JsonMap & actual, const std::string & name, const JsonNode & expectedValue)
{
auto guard = pushName(name);
if(!vstd::contains(actual, name))
check(isEmpty(expectedValue), "missing");
else
checkEqualJson(actual.at(name), expectedValue);
}
void JsonComparer::compare(const std::string & name, const JsonNode & actual, const JsonNode & expected)
{
auto guard = pushName(name);
checkEqualJson(actual, expected);
}
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