70 lines
2.2 KiB
Java
70 lines
2.2 KiB
Java
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import org.junit.*;
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/****************************************************
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* MyCalculatorTest - to test the class Calculator
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*
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* @author Resendiz
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* @version January 2021
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****************************************************/
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public class MyCalculatorTest {
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/******************************************************
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* Test default constructor - no input parameters
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*****************************************************/
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@Test
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public void testDefaultConstructor() {
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Calculator calc = new Calculator();
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Assert.assertEquals("Calculator Value should be 0.0 at construction",
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0.0, calc.getValue(),0.1);
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}
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/******************************************************
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* Test add
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*****************************************************/
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@Test
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public void testAdd() {
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Calculator calc = new Calculator();
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calc.add(10);
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calc.add(20);
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Assert.assertEquals("If you add 10 plus 20 you need 30 as result",
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30.0, calc.getValue(),0.1);
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}
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/******************************************************
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* Test multiplication
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*****************************************************/
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@Test
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public void testMultiplication() {
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Calculator calc = new Calculator();
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calc.add(10);
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calc.multiply(4);
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Assert.assertEquals("If you multiply 10 times 4 you get 40 as result",
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40.0, calc.getValue(),0.1);
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}
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/******************************************************
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* Test division
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*****************************************************/
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@Test
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public void testDivision() {
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Calculator calc = new Calculator();
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calc.add(40);
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calc.divide(4);
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Assert.assertEquals("If you divide 40 by 4 you get 10 as result",
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10.0, calc.getValue(),0.1);
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}
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/******************************************************
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* Test clear
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*****************************************************/
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@Test
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public void testClear() {
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Calculator calc = new Calculator();
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calc.add(40);
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calc.divide(4);
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calc.clear();
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Assert.assertEquals("You should have 0.0 when you clear",
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0.0, calc.getValue(),0.1);
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}
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}
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