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//-----------------------------------------------------------------------------
/** @file libboardgame_test/Test.h
Provides functionality similar to Boost.Test.
@author Markus Enzenberger
@copyright GNU General Public License version 3 or later */
//-----------------------------------------------------------------------------
#ifndef LIBBOARDGAME_TEST_TEST_H
#define LIBBOARDGAME_TEST_TEST_H
#include <cmath>
#include <functional>
#include <sstream>
#include <stdexcept>
#include <string>
namespace libboardgame_test {
using namespace std;
//-----------------------------------------------------------------------------
using TestFunction = function<void()>;
//-----------------------------------------------------------------------------
class TestFail
: public logic_error
{
public:
TestFail(const char* file, int line, const string& s);
};
//-----------------------------------------------------------------------------
void add_test(const string& name, const TestFunction& function);
bool run_all_tests();
bool run_test(const string& name);
//-----------------------------------------------------------------------------
/** Helper class that automatically adds a test when an instance is
declared. */
struct TestRegistrar
{
TestRegistrar(const string& name, const TestFunction& function)
{
add_test(name, function);
}
};
//-----------------------------------------------------------------------------
} // namespace libboardgame_test
//-----------------------------------------------------------------------------
#define LIBBOARDGAME_TEST_CASE(name) \
static void name(); \
static libboardgame_test::TestRegistrar name##_registrar(#name, name); \
void name()
#define LIBBOARDGAME_CHECK(expr) \
if (! (expr)) \
throw libboardgame_test::TestFail(__FILE__, __LINE__, "check failed");
#define LIBBOARDGAME_CHECK_EQUAL(expr1, expr2) \
{ \
using libboardgame_test::TestFail; \
auto result1 = (expr1); \
auto result2 = (expr2); \
if (result1 != result2) \
{ \
ostringstream msg; \
msg << "'" << result1 << "' != '" << result2 << "'"; \
throw TestFail(__FILE__, __LINE__, msg.str()); \
} \
}
#define LIBBOARDGAME_CHECK_THROW(expr, exception) \
{ \
using libboardgame_test::TestFail; \
bool was_thrown = false; \
try \
{ \
expr; \
} \
catch (const exception&) \
{ \
was_thrown = true; \
} \
if (! was_thrown) \
{ \
ostringstream msg; \
msg << "Exception '" << #exception << "' was not thrown"; \
throw TestFail(__FILE__, __LINE__, msg.str()); \
} \
}
#define LIBBOARDGAME_CHECK_NO_THROW(expr) \
{ \
using libboardgame_test::TestFail; \
try \
{ \
expr; \
} \
catch (...) \
{ \
throw TestFail(__FILE__, __LINE__, \
"Unexpected exception was thrown"); \
} \
}
/** Compare floating points using a tolerance in percent. */
#define LIBBOARDGAME_CHECK_CLOSE(expr1, expr2, tolerance) \
{ \
using libboardgame_test::TestFail; \
auto result1 = (expr1); \
auto result2 = (expr2); \
if (fabs(result1 - result2) > (tolerance) * result1 / 100) \
{ \
ostringstream msg; \
msg << "Difference between " << result1 << " and " \
<< result2 << " exceeds " << ((tolerance) / 100 ) \
<< " percent"; \
throw TestFail(__FILE__, __LINE__, msg.str()); \
} \
}
/** Compare floating points using an epsilon. */
#define LIBBOARDGAME_CHECK_CLOSE_EPS(expr1, expr2, epsilon) \
{ \
using libboardgame_test::TestFail; \
auto result1 = (expr1); \
auto result2 = (expr2); \
if (fabs(result1 - result2) > (epsilon)) \
{ \
ostringstream msg; \
msg << "Difference between " << result1 << " and " \
<< result2 << " exceeds " << (epsilon); \
throw TestFail(__FILE__, __LINE__, msg.str()); \
} \
}
//-----------------------------------------------------------------------------
#endif // LIBBOARDGAME_TEST_TEST_H
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