Mockito: avoid using MockitoJUnitRunner; use MockitoRule instead

As it turns out, MockitoJUnitRunner is a pretty heavily customized JUnit runner,
as it doesn't extend neither ParentRunner nor BlockJUnit4ClassRunner.

Author: Alberto Scotto

src/test/java/me/alb_i986/BaseMockitoTestClass.java

@@ -0,0 +1,15 @@
+package me.alb_i986;
+
+import org.junit.Rule;
+import org.mockito.junit.MockitoJUnit;
+import org.mockito.junit.MockitoRule;
+
+/**
+ * Base class for unit tests which use {@link org.mockito.Mockito}.
+ * <p>
+ * It provides a {@link MockitoRule}.
+ */
+public abstract class BaseMockitoTestClass {
+    @Rule
+    public MockitoRule mockitoRule = MockitoJUnit.rule();
+}

src/test/java/me/alb_i986/selenium/junit/rules/DriverServiceResourceTest.java

@@ -1,18 +1,16 @@
 package me.alb_i986.selenium.junit.rules;
 
+import me.alb_i986.BaseMockitoTestClass;
 import org.junit.Test;
-import org.junit.runner.RunWith;
 import org.mockito.Mock;
-import org.mockito.runners.MockitoJUnitRunner;
 import org.openqa.selenium.remote.service.DriverService;
 
 import static org.hamcrest.Matchers.equalTo;
 import static org.junit.Assert.assertThat;
 import static org.junit.Assert.fail;
 import static org.mockito.BDDMockito.verify;
 
-@RunWith(MockitoJUnitRunner.class)
-public class DriverServiceResourceTest {
+public class DriverServiceResourceTest extends BaseMockitoTestClass {
 
     @Mock private DriverService mockedService;
 

src/test/java/me/alb_i986/selenium/junit/rules/TakeScreenshotOnFailureRuleTest.java

@@ -1,20 +1,18 @@
 package me.alb_i986.selenium.junit.rules;
 
+import me.alb_i986.BaseMockitoTestClass;
 import org.junit.Assert;
 import org.junit.Test;
 import org.junit.runner.Description;
-import org.junit.runner.RunWith;
 import org.mockito.Mock;
-import org.mockito.runners.MockitoJUnitRunner;
 import org.openqa.selenium.OutputType;
 import org.openqa.selenium.TakesScreenshot;
 import org.openqa.selenium.WebDriverException;
 
 import static org.mockito.BDDMockito.given;
 import static org.mockito.BDDMockito.verify;
 
-@RunWith(MockitoJUnitRunner.class)
-public class TakeScreenshotOnFailureRuleTest {
+public class TakeScreenshotOnFailureRuleTest extends BaseMockitoTestClass {
 
     @Mock private TakesScreenshot mockedDriver;
 

src/test/java/me/alb_i986/selenium/junit/rules/WebDriverResourceTest.java

@@ -1,12 +1,11 @@
 package me.alb_i986.selenium.junit.rules;
 
+import me.alb_i986.BaseMockitoTestClass;
 import me.alb_i986.selenium.DummyDriver;
 import me.alb_i986.selenium.DummyDriverFactory;
 import me.alb_i986.selenium.WebDriverFactory;
 import org.junit.Test;
-import org.junit.runner.RunWith;
 import org.mockito.Mock;
-import org.mockito.runners.MockitoJUnitRunner;
 import org.openqa.selenium.WebDriver;
 import org.openqa.selenium.WebDriverException;
 
@@ -18,8 +17,7 @@
 import static org.mockito.BDDMockito.given;
 import static org.mockito.BDDMockito.verify;
 
-@RunWith(MockitoJUnitRunner.class)
-public class WebDriverResourceTest {
+public class WebDriverResourceTest extends BaseMockitoTestClass {
 
     @Mock private WebDriverFactory mockedDriverFactory;
     @Mock private WebDriver mockedDriver;