Unit tests + cleanup

tests/cppunit/time.cpp

@@ -0,0 +1,176 @@
+// ---
+//
+// $Id: time.cpp,v 1.4 2008/07/15 20:33:31 hartwork Exp $
+//
+// CppTest - A C++ Unit Testing Framework
+// Copyright (c) 2003 Niklas Lundell
+//
+// ---
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA 02111-1307, USA.
+//
+// ---
+
+#if (defined(__WIN32__) || defined(WIN32))
+# include "winconfig.h"
+#else
+# include "config.h"
+#endif 
+
+#include "missing.h"
+#include "cpptest-time.h"
+
+#ifdef HAVE_GETTIMEOFDAY
+	#ifdef HAVE_SYS_TIME_H
+		#include <sys/time.h>
+	#else
+		#include <time.h>
+	#endif
+#endif
+
+using namespace std;
+
+namespace Test
+{
+	namespace
+	{
+		const unsigned int UsecPerSec = 1000000;
+		
+	} // anonymous namespace
+	
+	/// Constructs a time object with zeroed time.
+	///
+	Time::Time()
+	:	_sec(0),
+		_usec(0)
+	{}
+	
+	/// Constructs a time object.
+	///
+	/// \param sec  Seconds.
+	/// \param usec Micro-seconds.
+	///
+	Time::Time(unsigned int sec, unsigned int usec)
+	:	_sec(sec),
+		_usec(usec)
+	{}
+	
+	/// \return Seconds.
+	///
+	unsigned int
+	Time::seconds() const
+	{
+		return _sec;
+	}
+	
+	/// \return Micro-seconds.
+	///
+	unsigned int
+	Time::microseconds() const
+	{
+		return _usec;
+	}
+	
+	/// \return The current time.
+	///
+	Time
+	Time::current()
+	{
+		struct timeval tv;
+		gettimeofday(&tv, 0);
+		return Time(tv.tv_sec, tv.tv_usec);
+	}
+	
+	/// \relates Time
+	///
+	/// Computes the time elapsed between two time values.
+	///
+	/// \param t1 Left-hand time, should be greater than \a t2.
+	/// \param t2 Right-hand time, should be less than \a t1.
+	///
+	/// \return Computed time value.
+	///
+	Time
+	operator-(const Time& t1, const Time& t2)
+	{
+		if (t2._sec > t1._sec || (t2._sec == t1._sec && t2._usec > t1._usec))
+			return Time();
+		
+		unsigned int sec = t1._sec - t2._sec;
+		unsigned int usec;
+		
+		if (t2._usec > t1._usec)
+		{
+			--sec;
+			usec = UsecPerSec - (t2._usec - t1._usec);
+		}
+		else
+			usec = t1._usec - t2._usec;
+		
+		return Time(sec, usec);
+	}
+	
+	/// \relates Time
+	///
+	/// Adds two time values.
+	///
+	/// \param t1 Left-hand time.
+	/// \param t2 Right-hand time.
+	///
+	/// \return Computed time value.
+	///
+	Time
+	operator+(const Time& t1, const Time& t2)
+	{
+		unsigned int sec  = t1._sec + t2._sec;
+		unsigned int usec = t1._usec + t2._usec;
+		
+		if (usec > UsecPerSec)
+		{
+			++sec;
+			usec -= UsecPerSec;
+		}
+		return Time(sec, usec);
+	}
+	
+	/// \relates Time
+	///
+	/// Outputs a time to an output stream.
+	///
+	/// \param os Output stream to write to.
+	/// \param t  %Time to output.
+	///
+	/// \return A reference to the given output stream.
+	///
+	ostream&
+	operator<<(ostream& os, const Time& t)
+	{
+		int old_fill(os.fill());
+		int old_width(os.width());
+
+		os << t.seconds() << '.';
+		os.fill('0');
+		os.width(6);
+		os << t.microseconds();
+
+		os.fill(old_fill);
+		os.width(old_width);
+
+		return os;
+	}
+	
+} // namespace Test
+