/*
 * Copyright (c) 2007, Michael Feathers, James Grenning and Bas Vodde
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the <organization> nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE EARLIER MENTIONED AUTHORS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "CppUTest/TestHarness.h"
#include "CppUTest/TestOutput.h"

namespace
{
const int failLineNumber = 2;
const char* failFileName = "fail.cpp";
}

static double zero = 0.0;
static const double not_a_number = zero / zero;

TEST_GROUP(TestFailureNaN)
{
	UtestShell* test;

	void setup()
	{
		test = new NullTestShell(failFileName, failLineNumber-1);
	}
	void teardown()
	{
		delete test;
	}
};
#define FAILURE_EQUAL(a, b) STRCMP_EQUAL_LOCATION(a, b.getMessage().asCharString(), __FILE__, __LINE__)


TEST(TestFailureNaN, DoublesEqualExpectedIsNaN)
{
	DoublesEqualFailure f(test, failFileName, failLineNumber, not_a_number, 2.0, 3.0);
	FAILURE_EQUAL("expected <Nan - Not a number>\n"
			    "\tbut was  <2> threshold used was <3>\n"
			    "\tCannot make comparisons with Nan", f);
}

TEST(TestFailureNaN, DoublesEqualActualIsNaN)
{
	DoublesEqualFailure f(test, failFileName, failLineNumber, 1.0, not_a_number, 3.0);
	FAILURE_EQUAL("expected <1>\n"
			    "\tbut was  <Nan - Not a number> threshold used was <3>\n"
			    "\tCannot make comparisons with Nan", f);
}

TEST(TestFailureNaN, DoublesEqualThresholdIsNaN)
{
	DoublesEqualFailure f(test, failFileName, failLineNumber, 1.0, 2.0, not_a_number);
	FAILURE_EQUAL("expected <1>\n"
			    "\tbut was  <2> threshold used was <Nan - Not a number>\n"
			    "\tCannot make comparisons with Nan", f);
}
