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Start your free trialLatoya Brown
2,289 Pointscan anyone help?
Please help!
I've started the shell for the @Before fixture for these tests. See how Calculator calculator = new Calculator() is duplicated in both tests? Can you help me fix that please?
Use the @Before method to instantiate a new Calculator and use that instance in each method. Don't forget to remove the Calculator instances from each test.
package com.example;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.*;
public class CalculatorTest {
@Before
public void setUp() throws Exception {
}
@Test
public void addingMultipleNumbersProducesResult() throws Exception {
Calculator calculator = new Calculator();
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
Jen Dunlap
4,385 PointsIn the @Before public void setUp() throws Exception{}
You need to add Calculator calculator = new Calculator(); between the curly brackets.
Then in each test remove the line for creating a new calculator.
By adding it to the @Before it will create a new calculator for you before each test rather than you manually having to create one.
Latoya Brown
2,289 PointsLatoya Brown
2,289 Pointsthank you!