From 4b70b1d5ce7089703287739f7f6b84a4e715b8f8 Mon Sep 17 00:00:00 2001 From: Felipe Reis Date: Wed, 1 Mar 2017 19:29:34 -0300 Subject: [PATCH] feat: Implement example tests for all scenarios Relates to: BAEL-632 --- .../ArgumentMatcherWithLambdaUnitTest.java | 44 +++++++++++++ .../ArgumentMatcherWithoutLambdaUnitTest.java | 55 ++++++++++++++++ .../java8/CustomAnswerWithLambdaUnitTest.java | 45 ++++++++++++++ .../CustomAnswerWithoutLambdaUnitTest.java | 59 ++++++++++++++++++ .../mockito/java8/JobServiceUnitTest.java | 44 +++++++++++++ .../UnemploymentServiceImplUnitTest.java | 62 +++++++++++++++++++ 6 files changed, 309 insertions(+) create mode 100644 mockito2/src/test/java/com/baeldung/mockito/java8/ArgumentMatcherWithLambdaUnitTest.java create mode 100644 mockito2/src/test/java/com/baeldung/mockito/java8/ArgumentMatcherWithoutLambdaUnitTest.java create mode 100644 mockito2/src/test/java/com/baeldung/mockito/java8/CustomAnswerWithLambdaUnitTest.java create mode 100644 mockito2/src/test/java/com/baeldung/mockito/java8/CustomAnswerWithoutLambdaUnitTest.java create mode 100644 mockito2/src/test/java/com/baeldung/mockito/java8/JobServiceUnitTest.java create mode 100644 mockito2/src/test/java/com/baeldung/mockito/java8/UnemploymentServiceImplUnitTest.java diff --git a/mockito2/src/test/java/com/baeldung/mockito/java8/ArgumentMatcherWithLambdaUnitTest.java b/mockito2/src/test/java/com/baeldung/mockito/java8/ArgumentMatcherWithLambdaUnitTest.java new file mode 100644 index 0000000000..2efac513b7 --- /dev/null +++ b/mockito2/src/test/java/com/baeldung/mockito/java8/ArgumentMatcherWithLambdaUnitTest.java @@ -0,0 +1,44 @@ +package com.baeldung.mockito.java8; + +import static org.junit.Assert.assertFalse; +import static org.junit.Assert.assertTrue; +import static org.mockito.Mockito.when; + +import java.util.Optional; + +import org.junit.Before; +import org.junit.Test; +import org.mockito.ArgumentMatchers; +import org.mockito.InjectMocks; +import org.mockito.Mock; +import org.mockito.MockitoAnnotations; + + +public class ArgumentMatcherWithLambdaUnitTest { + + @InjectMocks + private UnemploymentServiceImpl unemploymentService; + + @Mock + private JobService jobService; + + @Test + public void whenPersonWithJob_thenIsNotEntitled() { + Person peter = new Person("Peter"); + Person linda = new Person("Linda"); + + JobPosition teacher = new JobPosition("Teacher"); + + when(jobService.findCurrentJobPosition( + ArgumentMatchers.argThat((p) -> p.getName().equals("Peter"))) + ).thenReturn(Optional.of(teacher)); + + assertTrue(unemploymentService.personIsEntitledToUnemploymentSupport(linda)); + assertFalse(unemploymentService.personIsEntitledToUnemploymentSupport(peter)); + } + + @Before + public void init() { + MockitoAnnotations.initMocks(this); + } +} diff --git a/mockito2/src/test/java/com/baeldung/mockito/java8/ArgumentMatcherWithoutLambdaUnitTest.java b/mockito2/src/test/java/com/baeldung/mockito/java8/ArgumentMatcherWithoutLambdaUnitTest.java new file mode 100644 index 0000000000..f4e8fb4cf5 --- /dev/null +++ b/mockito2/src/test/java/com/baeldung/mockito/java8/ArgumentMatcherWithoutLambdaUnitTest.java @@ -0,0 +1,55 @@ +package com.baeldung.mockito.java8; + +import static org.junit.Assert.assertFalse; +import static org.junit.Assert.assertTrue; +import static org.mockito.Mockito.when; + +import java.util.Optional; + +import org.junit.Before; +import org.junit.Test; +import org.mockito.ArgumentMatchers; +import org.mockito.InjectMocks; +import org.mockito.ArgumentMatcher; +import org.mockito.Mock; +import org.mockito.MockitoAnnotations; + + +public class ArgumentMatcherWithoutLambdaUnitTest { + @InjectMocks + private UnemploymentServiceImpl unemploymentService; + + @Mock + private JobService jobService; + + @Test + public void whenPersonWithJob_thenIsNotEntitled() { + Person peter = new Person("Peter"); + Person linda = new Person("Linda"); + + JobPosition teacher = new JobPosition("Teacher"); + + when(jobService.findCurrentJobPosition( + ArgumentMatchers.argThat(new PeterArgumentMatcher())) + ).thenReturn(Optional.of(teacher)); + + assertTrue(unemploymentService.personIsEntitledToUnemploymentSupport(linda)); + assertFalse(unemploymentService.personIsEntitledToUnemploymentSupport(peter)); + } + + private class PeterArgumentMatcher implements ArgumentMatcher { + @Override + public boolean matches(Person p) { + + if (p.getName().equals("Peter")) { + return true; + } + return false; + } + } + + @Before + public void init() { + MockitoAnnotations.initMocks(this); + } +} diff --git a/mockito2/src/test/java/com/baeldung/mockito/java8/CustomAnswerWithLambdaUnitTest.java b/mockito2/src/test/java/com/baeldung/mockito/java8/CustomAnswerWithLambdaUnitTest.java new file mode 100644 index 0000000000..eebb86e239 --- /dev/null +++ b/mockito2/src/test/java/com/baeldung/mockito/java8/CustomAnswerWithLambdaUnitTest.java @@ -0,0 +1,45 @@ +package com.baeldung.mockito.java8; + +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertFalse; +import static org.mockito.ArgumentMatchers.any; +import static org.mockito.Mockito.when; + +import java.util.stream.Stream; + +import org.junit.Before; +import org.junit.Test; +import org.mockito.InjectMocks; +import org.mockito.Mock; +import org.mockito.MockitoAnnotations; + +public class CustomAnswerWithLambdaUnitTest { + @InjectMocks + private UnemploymentServiceImpl unemploymentService; + + @Mock + private JobService jobService; + + @Test + public void whenPersonWithJobHistory_thenSearchReturnsValue() { + Person peter = new Person("Peter"); + + assertEquals("Teacher", unemploymentService.searchJob(peter, "").get().getTitle()); + } + + @Test + public void whenPersonWithNoJobHistory_thenSearchReturnsEmpty() { + Person linda = new Person("Linda"); + + assertFalse(unemploymentService.searchJob(linda, "").isPresent()); + } + + @Before + public void init() { + MockitoAnnotations.initMocks(this); + + when(jobService.listJobs(any(Person.class))).then((i) -> { + return ((Person) i.getArgument(0)).getName().equals("Peter") ? Stream. builder().add(new JobPosition("Teacher")).build() : Stream.empty(); + }); + } +} diff --git a/mockito2/src/test/java/com/baeldung/mockito/java8/CustomAnswerWithoutLambdaUnitTest.java b/mockito2/src/test/java/com/baeldung/mockito/java8/CustomAnswerWithoutLambdaUnitTest.java new file mode 100644 index 0000000000..28922bb303 --- /dev/null +++ b/mockito2/src/test/java/com/baeldung/mockito/java8/CustomAnswerWithoutLambdaUnitTest.java @@ -0,0 +1,59 @@ +package com.baeldung.mockito.java8; + +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertFalse; +import static org.mockito.ArgumentMatchers.any; +import static org.mockito.Mockito.when; + +import java.util.stream.Stream; + +import org.junit.Before; +import org.junit.Test; +import org.mockito.InjectMocks; +import org.mockito.Mock; +import org.mockito.MockitoAnnotations; +import org.mockito.invocation.InvocationOnMock; +import org.mockito.stubbing.Answer; + + +public class CustomAnswerWithoutLambdaUnitTest { + @InjectMocks + private UnemploymentServiceImpl unemploymentService; + + @Mock + private JobService jobService; + + @Test + public void whenPersonWithJobHistory_thenSearchReturnsValue() { + Person peter = new Person("Peter"); + + assertEquals("Teacher", unemploymentService.searchJob(peter, "").get().getTitle()); + } + + @Test + public void whenPersonWithNoJobHistory_thenSearchReturnsEmpty() { + Person linda = new Person("Linda"); + + assertFalse(unemploymentService.searchJob(linda, "").isPresent()); + } + + private class PersonAnswer implements Answer> { + @Override + public Stream answer(InvocationOnMock invocation) throws Throwable { + Person person = invocation.getArgument(0); + + if(person.getName().equals("Peter")) { + return Stream.builder().add(new JobPosition("Teacher")).build(); + } + + return Stream.empty(); + } + } + + @Before + public void init() { + MockitoAnnotations.initMocks(this); + + when(jobService.listJobs(any(Person.class))).then(new PersonAnswer()); + } +} diff --git a/mockito2/src/test/java/com/baeldung/mockito/java8/JobServiceUnitTest.java b/mockito2/src/test/java/com/baeldung/mockito/java8/JobServiceUnitTest.java new file mode 100644 index 0000000000..9ea5c1db47 --- /dev/null +++ b/mockito2/src/test/java/com/baeldung/mockito/java8/JobServiceUnitTest.java @@ -0,0 +1,44 @@ +package com.baeldung.mockito.java8; + +import static org.junit.Assert.assertFalse; +import static org.junit.Assert.assertTrue; +import static org.mockito.Mockito.doCallRealMethod; +import static org.mockito.Mockito.when; + +import java.util.Optional; + +import org.junit.Before; +import org.junit.Test; +import org.mockito.Mock; +import org.mockito.Mockito; +import org.mockito.MockitoAnnotations; + +public class JobServiceUnitTest { + @Mock + private JobService jobService; + + @Test + public void givenDefaultMethod_whenCallRealMethod_thenNoExceptionIsRaised() { + Person person = new Person(); + + when(jobService.findCurrentJobPosition(person)).thenReturn(Optional.of(new JobPosition())); + doCallRealMethod().when(jobService).assignJobPosition(Mockito.any(Person.class), Mockito.any(JobPosition.class)); + + assertFalse(jobService.assignJobPosition(person, new JobPosition())); + } + + @Test + public void givenReturnIsOfTypeOptional_whenDefaultValueIsReturned_thenValueIsEmpty() { + Person person = new Person(); + + when(jobService.findCurrentJobPosition(person)).thenReturn(Optional.empty()); + doCallRealMethod().when(jobService).assignJobPosition(Mockito.any(Person.class), Mockito.any(JobPosition.class)); + + assertTrue(jobService.assignJobPosition(person, new JobPosition())); + } + + @Before + public void init() { + MockitoAnnotations.initMocks(this); + } +} diff --git a/mockito2/src/test/java/com/baeldung/mockito/java8/UnemploymentServiceImplUnitTest.java b/mockito2/src/test/java/com/baeldung/mockito/java8/UnemploymentServiceImplUnitTest.java new file mode 100644 index 0000000000..b3b71e5bf9 --- /dev/null +++ b/mockito2/src/test/java/com/baeldung/mockito/java8/UnemploymentServiceImplUnitTest.java @@ -0,0 +1,62 @@ +package com.baeldung.mockito.java8; + +import static org.junit.Assert.assertFalse; +import static org.junit.Assert.assertTrue; +import static org.mockito.Matchers.any; +import static org.mockito.Mockito.when; + +import java.util.Optional; +import java.util.stream.Stream; + +import org.junit.Before; +import org.junit.Test; +import org.mockito.InjectMocks; +import org.mockito.Mock; +import org.mockito.MockitoAnnotations; + +public class UnemploymentServiceImplUnitTest { + @Mock + private JobService jobService; + + @InjectMocks + private UnemploymentServiceImpl unemploymentService; + + @Test + public void givenReturnIsOfTypeOptional_whenMocked_thenValueIsEmpty() { + Person person = new Person(); + + when(jobService.findCurrentJobPosition(any(Person.class))).thenReturn(Optional.empty()); + + assertTrue(unemploymentService.personIsEntitledToUnemploymentSupport(person)); + } + + @Test + public void givenReturnIsOfTypeOptional_whenDefaultValueIsReturned_thenValueIsEmpty() { + Person person = new Person(); + + // This will fail when Mockito 1 is used + assertTrue(unemploymentService.personIsEntitledToUnemploymentSupport(person)); + } + + @Test + public void givenReturnIsOfTypeStream_whenMocked_thenValueIsEmpty() { + Person person = new Person(); + + when(jobService.listJobs(any(Person.class))).thenReturn(Stream.empty()); + + assertFalse(unemploymentService.searchJob(person, "").isPresent()); + } + + @Test + public void givenReturnIsOfTypeStream_whenDefaultValueIsReturned_thenValueIsEmpty() { + Person person = new Person(); + + // This will fail when Mockito 1 is used + assertFalse(unemploymentService.searchJob(person, "").isPresent()); + } + + @Before + public void init() { + MockitoAnnotations.initMocks(this); + } +}