add very basic NR test

test/test_rational.cpp

@@ -0,0 +1,53 @@
+#include "NR.h"
+
+#include <cassert>
+
+static void test() {
+	/*NR* frac = new NR;
+	NR frac2(3);
+	NR frac3(2, 5);
+	int a, b;
+	std::cout << "PGCD : entrez deux entiers" << std::endl;
+	std::cin >> a >> b;
+	std::cout << PGCD(a, b) << std::endl;
+	std::cout << "frac : entrez deux entiers" << std::endl;
+	std::cin >> a >> b;
+	NR fractest(a, b);
+	std::cout << fractest << " + " << frac3 << " = " << std::endl;
+	std::cout << ">> " << (fractest + frac3) << std::endl;
+	std::cout << ">> " << (fractest + frac3).GetNumerator() << "/" << (fractest + frac3).GetDenominator() << std::endl;
+	fractest = fractest + frac3;
+	std::cout << ">> " << fractest << std::endl;
+	// frac->NRset(2, 4);
+	NR anotherfrac;
+	std::cin >> anotherfrac;
+	std::cout << "Compare " << fractest << " and " << anotherfrac << " : ==? " << (fractest == anotherfrac) << " <? "
+			  << (fractest < anotherfrac) << " >=? " << (fractest >= anotherfrac) << std::endl;
+	std::cout << anotherfrac << " - " << *frac << " = " << anotherfrac - *frac << std::endl;
+	std::cout << anotherfrac << " * " << *frac << " = " << std::endl << ">> " << anotherfrac * *frac << std::endl;
+	fractest = anotherfrac * *frac;
+	std::cout << ">> " << fractest << std::endl;
+	fractest.Reduce();
+	std::cout << ">> " << fractest << std::endl;
+	std::cout << anotherfrac << " / " << frac2 << " = " << anotherfrac / frac2 << std::endl;
+	NR numNR(2, 4);
+	NR otherNR(3, 1);
+	std::cout << numNR << " - " << otherNR << " = " << std::endl;
+	NR subNR = numNR - otherNR;
+	std::cout << ">> " << (numNR - otherNR) << std::endl << ">> " << subNR << std::endl;
+	delete frac;*/
+
+	NR frac1 {2};
+	NR frac2 {1};
+
+	assert(frac1 != frac2);
+
+	frac2 *= 2;
+
+	assert(frac1 == frac2);
+}
+
+int main(int argc, char** argv) {
+	test();
+	return 0;
+}