143 lines
4.1 KiB
C++
143 lines
4.1 KiB
C++
/*
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TEST-HELPER.hpp - collection of functions supporting unit testing
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Copyright (C) Lumiera.org
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2009, Hermann Vosseler <Ichthyostega@web.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef LIB_TEST_TESTHELPER_H
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#define LIB_TEST_TESTHELPER_H
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#include "lib/symbol.hpp"
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#include "lib/lumitime.hpp"
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#include <typeinfo>
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#include <string>
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#include <cstdlib>
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namespace lib {
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namespace test{
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using lib::Literal;
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using lumiera::Time;
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using std::string;
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using std::rand;
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/** get a sensible display for a type or object
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* @param obj object of the type in question
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* @param name optional name to be used literally
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* @return either the literal name without any further magic,
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* or the result of compile-time or run time
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* type identification as implemented by the compiler.
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*/
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template<typename T>
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inline Literal
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showType (T const& obj, Literal name=0)
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{
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return name? name : Literal(typeid(obj).name());
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}
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/** get a sensible display for a type
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* @param name optional name to be used literally
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* @return either the literal name without any further magic,
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* or the result of compile-time or run time
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* type identification as implemented by the compiler.
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*/
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template<typename T>
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inline Literal
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showType (Literal name=0)
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{
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return name? name : Literal(typeid(T).name());
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}
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/** for printing sizeof().
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* prints the given size and name literally, without any further magic */
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string
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showSizeof (size_t siz, const char* name);
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/** for printing sizeof(), trying to figure out the type name automatically */
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template<typename T>
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inline string
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showSizeof(const char* name=0)
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{
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return showSizeof (sizeof (T), showType<T> (name));
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}
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template<typename T>
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inline string
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showSizeof(T const& obj, const char* name=0)
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{
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return showSizeof (sizeof (obj), showType (obj,name));
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}
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template<typename T>
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inline string
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showSizeof(T *obj, const char* name=0)
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{
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return obj? showSizeof (*obj, name)
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: showSizeof<T> (name);
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}
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/** create a random but not insane Time value */
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inline Time
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randTime ()
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{
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return Time (500 * (rand() % 2), (rand() % 600));
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}
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/** create garbage string of given length
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* @return string containing arbitrary lower case letters and numbers
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*/
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string randStr (size_t len);
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}} // namespace lib::test
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/* === test helper macros === */
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/**
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* Macro to verify a statement indeed raises an exception.
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* If no exception is thrown, the #NOTREACHED macro will trigger
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* an assertion failure. In case of an exception, the #lumiera_error
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* state is checked, cleared and verified.
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*/
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#define VERIFY_ERROR(ERROR_ID, ERRONEOUS_STATEMENT) \
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try \
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{ \
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ERRONEOUS_STATEMENT ; \
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NOTREACHED("'%s' resisted to fail", #ERRONEOUS_STATEMENT); \
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} \
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catch (...) \
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{ \
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CHECK (lumiera_error_expect (LUMIERA_ERROR_##ERROR_ID)); \
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}
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#endif
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