#ifdef WITH_TESTS

#include "../../Tests.h"

#include "../../../sensors/radio/LogDistanceModel.h"

TEST(LogDistanceModel, calc) {

	const float txp = -40;
	const float exp = 1;
	ASSERT_EQ(-40, LogDistanceModel::distanceToRssi(txp, exp, 1.0));

	// only exponent changed. at 1.0 meter: no difference
	ASSERT_EQ(LogDistanceModel::distanceToRssi(-40, 1.0, 1.0), LogDistanceModel::distanceToRssi(-40, 2.0, 1.0));

	// distance increment
	ASSERT_GT(LogDistanceModel::distanceToRssi(-40, 1.0, 1.0), LogDistanceModel::distanceToRssi(-40, 1.0, 2.0));

	// exponent at more than 1.0m
	ASSERT_GT(LogDistanceModel::distanceToRssi(-40, 1.0, 3.0), LogDistanceModel::distanceToRssi(-40, 1.1, 3.0));

	// other txp
	ASSERT_GT(LogDistanceModel::distanceToRssi(-40, 1.0, 1.0), LogDistanceModel::distanceToRssi(-45, 1.0, 1.0));

}

TEST(LogDistanceModel, forwardBackward) {

	const float txp = -40;
	const float exp = 1;
	ASSERT_EQ(1.0, LogDistanceModel::rssiToDistance(txp, exp, LogDistanceModel::distanceToRssi(txp, exp, 1.0)));
	ASSERT_EQ(5.0, LogDistanceModel::rssiToDistance(txp, exp, LogDistanceModel::distanceToRssi(txp, exp, 5.0)));
	ASSERT_EQ(10.0, LogDistanceModel::rssiToDistance(txp, exp, LogDistanceModel::distanceToRssi(txp, exp, 10.0)));

}

#endif