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Java Unit Testing in Java How to Test Using Before to not repeat yourself

Chung Kang
Chung Kang
7,325 Points

Compiler error?

Hello guys! I saw some others were having this trouble, but got it working eventually. I'm stuck trying to get this to pass. I've created the private variable calculator of type Calculator, and used that in each unit fixture, but I might be missing something. Any ideas what I might be missing?

When I go to check work, it states:

JavaTester.java:69: error: illegal start of expression
      package com.example;
      ^
JavaTester.java:69: error: not a statement
      package com.example;
                 ^
JavaTester.java:71: error: illegal start of expression
import org.junit.Before;
^
JavaTester.java:71: error: not a statement
import org.junit.Before;
                ^
JavaTester.java:72: error: illegal start of expression
import org.junit.Test;
^
JavaTester.java:72: error: not a statement
import org.junit.Test;
                ^
JavaTester.java:74: error: illegal start of expression
import static org.junit.Assert.*;
^
JavaTester.java:74: error: illegal start of expression
import static org.junit.Assert.*;
       ^
JavaTester.java:74: error: ';' expected
import static org.junit.Assert.*;
                 ^
JavaTester.java:74: error:  expected
import static org.junit.Assert.*;
                               ^
JavaTester.java:74: error: illegal start of expression
import static org.junit.Assert.*;
                                ^
JavaTester.java:76: error: illegal start of expression
public class CalculatorTest {
^
12 errors
com/example/CalculatorTest.java
package com.example;

import org.junit.Before;
import org.junit.Test;

import static org.junit.Assert.*;

public class CalculatorTest {

    private Calculator calculator;

    @Before
    public void setUp() throws Exception {
            calculator = new Calculator();
    }

    @Test
    public void addingMultipleNumbersProducesResult() throws Exception {
        int answer = calculator.addNumbers(1 ,2, 3);

        assertEquals(6, answer);
    }

    @Test
    public void addingSingleNumberTotalsAppropriately() throws Exception {
        int answer = calculator.addNumbers(1);

        assertEquals(1, answer);
    }
}
com/example/Calculator.java
package com.example;

public class Calculator {

    public int addNumbers(int... numbers) {
        int total = 0;
        for (int number : numbers) {
            total += number;
        }
        return total;
    }
}
Kurt Bitner
Kurt Bitner
12,135 Points

There must be a bug on their servers because one of my complete challenges won't compile now and I am getting the same error.

Chung Kang
Chung Kang
7,325 Points

Thanks for confirming Kurt, I think you are right :)