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#pragma once
#include <cstddef>
#include <iostream>
#include <list>
#include <vector>
#include <functional>
#include <string>
#include <sstream>
#include <fstream>
#include <cmath>
class DGUnit
{
public:
DGUnit()
{
if(DGUnit::suite_list == nullptr)
{
DGUnit::suite_list = this;
return;
}
auto unit = DGUnit::suite_list;
while(unit->next_unit)
{
}
unit->next_unit = this;
}
virtual void setup() {}
virtual void teardown() {}
struct test_result
{
std::string func;
std::string file;
std::size_t line;
std::string msg;
int id;
};
static int runTests(std::ofstream& out)
{
std::size_t test_num{0};
std::size_t failed{0};
std::list<test_result> failed_tests;
std::list<test_result> successful_tests;
for(auto suite = DGUnit::suite_list; suite; suite = suite->next_unit)
{
for(auto test : suite->tests)
{
++test_num;
try
{
suite->setup();
test.first();
suite->teardown();
}
catch(test_result& result)
{
std::cout << "F";
fflush(stdout);
result.id = test_num;
result.func = test.second;
failed_tests.push_back(result);
++failed;
continue;
}
catch(...)
{
break;
}
std::cout << ".";
fflush(stdout);
test_result result{test.second};
result.id = test_num;
successful_tests.push_back(result);
}
}
out << "<?xml version=\"1.0\" encoding='ISO-8859-1' standalone='yes' ?>\n";
out << "<TestRun>\n";
out << " <FailedTests>\n";
for(auto test : failed_tests)
{
out << " <FailedTest id=\"" << test.id << "\">\n";
out << " <Name>" << sanitize(test.func) << "</Name>\n";
out << " <FailureType>Assertion</FailureType>\n";
out << " <Location>\n";
out << " <File>" << sanitize(test.file) << "</File>\n";
out << " <Line>" << test.line << "</Line>\n";
out << " </Location>\n";
out << " <Message>" << sanitize(test.msg) << "</Message>\n";
out << " </FailedTest>\n";
}
out << " </FailedTests>\n";
out << " <SuccessfulTests>\n";
for(auto test : successful_tests)
{
out << " <Test id=\"" << test.id << "\">\n";
out << " <Name>" << sanitize(test.func) << "</Name>\n";
out << " </Test>\n";
}
out << " </SuccessfulTests>\n";
out << " <Statistics>\n";
out << " <Tests>" << (successful_tests.size() + failed_tests.size()) << "</Tests>\n";
out << " <FailuresTotal>" << failed_tests.size() << "</FailuresTotal>\n";
out << " <Errors>0</Errors>\n";
out << " <Failures>" << failed_tests.size() << "</Failures>\n";
out << " </Statistics>\n";
out << "</TestRun>\n";
return failed == 0 ? 0 : 1;
}
protected:
template<typename O, typename F>
void registerTest(O* obj, const F& fn, const char* name)
{
tests.emplace_back(std::make_pair(std::bind(fn, obj), name));
}
#define DGUNIT_TEST(func) \
registerTest(this, &func, #func)
void dg_assert(bool value, const char* expr,
const char* file, std::size_t line)
{
if(!value)
{
std::stringstream ss;
ss << "assertion failed\n"
"- Expression: " << expr << "\n";
throw test_result{"", file, line, ss.str()};
}
}
#define DGUNIT_ASSERT(value) \
dg_assert(value, #value, __FILE__, __LINE__)
void assert_equal(double expected, double value,
const char* file, std::size_t line)
{
if(std::fabs(expected - value) > 0.0000001)
{
std::stringstream ss;
ss << "equality assertion failed\n"
"- Expected: " << expected << "\n"
"- Actual : " << value << "\n";
throw test_result{"", file, line, ss.str()};
}
}
template<typename T>
void assert_equal(T expected, T value,
const char* file, std::size_t line)
{
if(expected != value)
{
std::stringstream ss;
ss << "equality assertion failed\n"
"- Expected: " << expected << "\n"
"- Actual : " << value << "\n";
throw test_result{"", file, line, ss.str()};
}
}
#define DGUNIT_ASSERT_EQUAL(expected, value) \
assert_equal(expected, value, __FILE__, __LINE__)
private:
static std::string sanitize(const std::string& input)
{
std::string output;
for(auto c : input)
{
switch(c)
{
case '"':
output += """;
break;
case '&':
output += "&";
break;
case '<':
output += "<";
break;
case '>':
output += ">";
break;
default:
output += c;
break;
}
}
return output;
}
static DGUnit* suite_list;
DGUnit* next_unit{nullptr};
std::vector<std::pair<std::function<void()>, const char*>> tests;
};
#ifdef DGUNIT_MAIN
DGUnit* DGUnit::suite_list{nullptr};
#endif
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