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Shar Feldheim
142 PointsDeclaration I declare a variable in @Before, calculator = new Calculator . There is always a an error, "calculator"
I want to see how it is best done. What is my error?
package com.example;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.*;
public class CalculatorTest {
// void Calculator();
@Before
public void setUp() throws Exception {
calculator = new Calculator();
int answer = calculator.addnumbers();
}
@Test
public void addingMultipleNumbersProducesResult() throws Exception {
// calculator = calculator;
new
int answer = calculator.addNumbers(1 ,2, 3);
assertEquals(6, answer);
}
@Test
public void addingSingleNumberTotalsAppropriately() throws Exception {
//Calculator calculator = new Calculator();
int answer = calculator.addNumbers(1);
assertEquals(1, answer);
}
}
package com.example;
public class Calculator {
public int addNumbers(int... numbers) {
int total = 0;
for (int number : numbers) {
total += number;
}
return total;
}
}
1 Answer
Florian Tönjes
Full Stack JavaScript Techdegree Graduate 50,856 PointsHi Shar,
you almost got it. You need to declare a calculator field in the calculator test class which you can assign the new calculator to.
public class CalculatorTest {
private Calculator calculator;
@Before
public void setUp() throws Exception {
calculator = new Calculator();
}
Kind Regards, Florian