Code for Advanced JMockit article (#557)
* Add new module for mocks comparison. * Add sources for testing. * Changes on testCase. * Enter some tests for mockito. * More tests for Mockito. * Even more tests. * Add the rest of the mocking libraries. * Javadoc on test. * Test bare bones for EasyMock. * Fist kind of test and setup. * Add tests using EasyMock with a change on LoginService. * Create LoginControllerTest.java * Test setup * [JMockit] No method called test. * [JMockit] Two methods called test. * [JMockit] One method called test. * [JMockit] Exception mock test * [JMockit] Mocked object to pass around test. * [JMockit] Custom matcher test. * [JMockit] Partial mocking test. * [JMockit] Fix with IDE. * Not stubs. Mocks. MOCKS!!! * Remove unnecesary import. * Use correct encoding. Was having problems with buildings. * Remove failing module. * Create new module mocks and move mock-comparisons there. * Add jmockit module. * Add model class. * Add collaborator class. * Add performer class. * Add performer test. * Fix * Add interface for tests. * Test for any. * Test for with. * Test for null. * Test for times. * Test for arg that. * Test for result and returns. * Test for delegate. * Add verifications to any tests. * Add verifications to with test. * Add verification examples to methods using null. * Add verifications to methods using times. * Formatting. * Compress tests and fix one test. * Adding new article to readme. * [BAEL-178] Add collaborator for advanced article. * [BAEL-178] Add link to readme. * [BAEL-178] Add test for mockUp. * [BAEL-178] Add test for invoke method. * [BAEL-178] Add constructors and tests for mockup for constructors. * [BAEL-178] Add private fields and more test for deencapsulation. * [BAEL-178] Add inner class and test for instantiating inner classes. * [BAEL-178] Multimocks. * [BAEL-178] Add test for expectation reusing.
This commit is contained in:
Álvaro Fernández González
Grzegorz Piwowarek
parent
135adf81b1
commit
944525a524
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### Relevant Articles:
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- [JMockit 101](http://www.baeldung.com/jmockit-101)
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- [A Guide to JMockit Expectations](http://www.baeldung.com/jmockit-expectations)
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- [JMockit Advanced Topics](http://www.baeldung.com/jmockit-advanced-topics)
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package org.baeldung.mocks.jmockit;
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public class AdvancedCollaborator {
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int i;
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private int privateField = 5;
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public AdvancedCollaborator(){}
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public AdvancedCollaborator(String string) throws Exception{
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i = string.length();
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}
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public String methodThatCallsPrivateMethod(int i){
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return privateMethod() + i;
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}
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public int methodThatReturnsThePrivateField(){
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return privateField;
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}
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private String privateMethod(){
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return "default:";
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}
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class InnerAdvancedCollaborator{}
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}
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package org.baeldung.mocks.jmockit;
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import org.junit.Before;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import mockit.Expectations;
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import mockit.Injectable;
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import mockit.Mocked;
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import mockit.Tested;
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import mockit.Verifications;
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import mockit.integration.junit4.JMockit;
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@RunWith(JMockit.class)
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public class ReusingTest {
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@Injectable
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private Collaborator collaborator;
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@Mocked
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private Model model;
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@Tested
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private Performer performer;
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@Before
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public void setup(){
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new Expectations(){{
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model.getInfo(); result = "foo"; minTimes = 0;
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collaborator.collaborate("foo"); result = true; minTimes = 0;
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}};
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}
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@Test
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public void testWithSetup() {
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performer.perform(model);
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verifyTrueCalls(1);
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}
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protected void verifyTrueCalls(int calls){
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new Verifications(){{
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collaborator.receive(true); times = calls;
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}};
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}
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final class TrueCallsVerification extends Verifications{
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public TrueCallsVerification(int calls){
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collaborator.receive(true); times = calls;
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}
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}
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@Test
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public void testWithFinalClass() {
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performer.perform(model);
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new TrueCallsVerification(1);
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}
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}
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package org.baeldung.mocks.jmockit;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertNotNull;
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import java.util.ArrayList;
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import java.util.List;
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import org.baeldung.mocks.jmockit.AdvancedCollaborator.InnerAdvancedCollaborator;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import mockit.Deencapsulation;
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import mockit.Expectations;
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import mockit.Invocation;
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import mockit.Mock;
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import mockit.MockUp;
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import mockit.Mocked;
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import mockit.Tested;
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import mockit.integration.junit4.JMockit;
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@RunWith(JMockit.class)
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public class AdvancedCollaboratorTest<MultiMock extends List<String> & Comparable<List<String>>> {
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@Tested
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private AdvancedCollaborator mock;
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@Mocked
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private MultiMock multiMock;
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@Test
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public void testToMockUpPrivateMethod() {
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new MockUp<AdvancedCollaborator>() {
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@Mock
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private String privateMethod() {
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return "mocked: ";
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}
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};
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String res = mock.methodThatCallsPrivateMethod(1);
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assertEquals("mocked: 1", res);
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}
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@Test
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public void testToMockUpDifficultConstructor() throws Exception {
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new MockUp<AdvancedCollaborator>() {
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@Mock
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public void $init(Invocation invocation, String string) {
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((AdvancedCollaborator) invocation.getInvokedInstance()).i = 1;
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}
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};
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AdvancedCollaborator coll = new AdvancedCollaborator(null);
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assertEquals(1, coll.i);
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}
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@Test
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public void testToCallPrivateMethodsDirectly() {
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Object value = Deencapsulation.invoke(mock, "privateMethod");
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assertEquals("default:", value);
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}
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@Test
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public void testToSetPrivateFieldDirectly() {
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Deencapsulation.setField(mock, "privateField", 10);
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assertEquals(10, mock.methodThatReturnsThePrivateField());
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}
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@Test
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public void testToGetPrivateFieldDirectly() {
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int value = Deencapsulation.getField(mock, "privateField");
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assertEquals(5, value);
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}
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@Test
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public void testToCreateNewInstanceDirectly() {
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AdvancedCollaborator coll = Deencapsulation.newInstance(AdvancedCollaborator.class, "foo");
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assertEquals(3, coll.i);
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}
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@Test
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public void testToCreateNewInnerClassInstanceDirectly() {
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InnerAdvancedCollaborator innerCollaborator = Deencapsulation.newInnerInstance(InnerAdvancedCollaborator.class, mock);
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assertNotNull(innerCollaborator);
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}
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@Test
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@SuppressWarnings("unchecked")
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public void testMultipleInterfacesWholeTest() {
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new Expectations() {
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{
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multiMock.get(5); result = "foo";
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multiMock.compareTo((List<String>) any); result = 0;
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}
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};
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assertEquals("foo", multiMock.get(5));
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assertEquals(0, multiMock.compareTo(new ArrayList<>()));
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}
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@Test
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@SuppressWarnings("unchecked")
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public <M extends List<String> & Comparable<List<String>>> void testMultipleInterfacesOneMethod(@Mocked M mock) {
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new Expectations() {
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{
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mock.get(5); result = "foo";
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mock.compareTo((List<String>) any);
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result = 0; }
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};
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assertEquals("foo", mock.get(5));
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assertEquals(0, mock.compareTo(new ArrayList<>()));
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}
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}
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