import static org.junit.Assert.*;

import org.junit.Test;

public class CalculatorTest {

	Calculator C = new MyCalculator();
	@Test
	public void Lab1_test0() {
		Calc C = new Calc();
		C.Input("");
		assertEquals(Calculator.BAD_FORMAT, C.getResults());
	}

	@Test
	public void Lab1_test1() {
		C.Input("3.5-2*4/4");
		assertEquals("1.5", C.getResults());
	}

	@Test
	public void Lab1_test2() {
		C.Input("9*3/5-5");
		assertEquals("0.4", C.getResults());
	}

	@Test
	public void Lab1_test3() {
		C.Input("0/5-5");
		assertEquals("-5", C.getResults());
	}

	@Test
	public void Lab1_test4() {
		Calc C = new Calc();
		C.Input("5*-4/10");
		assertEquals("-2", C.getResults());
	}

	@Test
	public void Lab1_test5() {
		Calc C = new Calc();
		C.Input("17 / 2-");
		assertEquals(Calculator.BAD_FORMAT, C.getResults());
	}
}