/*
 * tester.cpp
 *
 *  Created on: Oct 18, 2011
 *      Author: mike
 */

#include "tester.hpp"
//--------------------------------------------------------------------
// Perform some tests.
// Leave the system PRNG back in its initial state
void Tester::run() {
	test1();
	test2();
	test3();
}

void Tester::test1() {

	cout << "Testing RandBit in normal mode" << endl;
	double p[] = { 0, 0.25, 0.5, 0.5, 0.75, 1.0 };
	unsigned s[] = { 1234, 1234, 1234, 9999, 1234, 1234 };
	int n = 100;
	unsigned nTests = sizeof(p) / sizeof(double);
	for (unsigned t = 0; t < nTests; t++) {
		cout << "  " << n << " random bits with bias " << p[t] << " and seed "
				<< s[t] << endl;
		RandBit gen(p[t], s[t]);
		int k;
		for (k = 0; k < n; k++) {
			if (k % 25 == 0)
				cout << "    ";
			cout << " " << gen.next();
			if (k % 25 == 24)
				cout << endl;
		}
		if (k % 25 != 0)
			cout << endl;
	}
}

void Tester::test2() {
	cout << "Testing RandBit in test mode" << endl;
	string filename[] = { "bits.in" };
	int n = 100;
	unsigned nTests = sizeof(filename) / sizeof(string);
	for (unsigned t = 0; t < nTests; t++) {
		cout << "  " << n << " fake random bits from file " << filename[t]
				<< endl;
		RandBit gen(filename[t]);
		int k;
		for (k = 0; k < n; k++) {
			if (k % 25 == 0)
				cout << "    ";
			cout << " " << gen.next();
			if (k % 25 == 24)
				cout << endl;
		}
		if (k % 25 != 0)
			cout << endl;
	}
}

void Tester::test3() {
	cout << "Testing Coin flips" << endl;
	string filename[] = { "bits.in" };
	int n = 100;
	unsigned nTests = sizeof(filename) / sizeof(string);
	for (unsigned t = 0; t < nTests; t++) {
		cout << "  " << n << " coin tosses using fake random bits from file " << filename[t]
				<< endl;
		RandBit gen(filename[t]);
		Coin c(&gen);
		int k;
		for (k = 0; k < n; k++) {
			if (k % 25 == 0)
				cout << "    ";
			cout << " ";
			c.toss();
			c.print(cout);
			if (k % 25 == 24)
				cout << endl;
		}
		if (k % 25 != 0)
			cout << endl;
	}
}