How to use apply method of org.junit.rules.RuleChain class

Best junit code snippet using org.junit.rules.RuleChain.apply

Source:JunitRuleTest.java

...82    }83    @Slf4j84    private static class MethodLoggingRule implements MethodRule {85        @Override86        public Statement apply(Statement base, FrameworkMethod method, Object target) {87            String flag = target.getClass().getSimpleName() + "." + method.getName();88            return new Statement() {89                @Override90                public void evaluate() throws Throwable {91                    Stopwatch watch = Stopwatch.createStarted();92                    base.evaluate();93                    log.info("finished {}, duration: {} ms.", flag, watch.elapsed(TimeUnit.MILLISECONDS));94                }95            };96        }97    }98    @Slf4j99    private static class LoggingRule implements TestRule {100        private int priority;101        public LoggingRule(int priority) {102            this.priority = priority;103        }104        @Override105        public Statement apply(Statement base, Description description) {106            return new Statement() {107                @Override108                public void evaluate() throws Throwable {109                    log.info("starting LoggingRule-{}.", priority);110                    base.evaluate();111                    log.info("finished LoggingRule-{}", priority);112                }113            };114        }115    }116}...

Source:MockitoTestRule.java

...23 * </code></pre>24 *25 * @see MockitoRule26 * @see org.junit.rules.RuleChain27 * @see <a href="https://github.com/junit-team/junit4/issues/351">#351: missing current instance in TestRule apply()</a>28 * @see <a href="https://github.com/mockito/mockito/issues/997">#997: ClassRule/TestRule version of Mockito's JUnitRule</a>29 *30 * @deprecated Deprecated since Dropwizard 2.0.0. Please migrate to JUnit 5.31 */32@Deprecated33public class MockitoTestRule implements TestRule {34    private final Object testInstance;35    private final MockitoRule delegate;36    /**37     * Create a new adapter for a {@link MockitoRule} instance.38     *39     * @param testInstance The instance of the test class (which is most likely {@code this})40     * @param delegate The instance of {@link MockitoRule} to wrap around41     */42    public MockitoTestRule(Object testInstance, MockitoRule delegate) {43        this.testInstance = requireNonNull(testInstance, "test instance");44        this.delegate = requireNonNull(delegate, "MockitoRule");45    }46    @Override47    public Statement apply(Statement base, Description description) {48        if (description.isEmpty()) {49            return base;50        } else {51            final Class<?> testClass = description.getTestClass();52            final FrameworkMethod frameworkMethod;53            try {54                final Method method = testClass.getMethod(description.getMethodName());55                frameworkMethod = new FrameworkMethod(method);56            } catch (NoSuchMethodException e) {57                throw new IllegalStateException(e);58            }59            return delegate.apply(base, frameworkMethod, testInstance);60        }61    }62}...

Source:RuleChain.java

...87/*    */ 88/*    */ 89/*    */ 90/*    */   91/*    */   public Statement apply(Statement base, Description description) {92/* 92 */     for (TestRule each : this.rulesStartingWithInnerMost) {93/* 93 */       base = each.apply(base, description);94/*    */     }95/* 95 */     return base;96/*    */   }97/*    */ }98/* Location:              C:\Users\Tarik\OneDrive - fer.hr\FAKS\5. semestar\PPP\Testiranje\Test programi\jChess-1.5\jChess-1.5\jChess-1.5.jar!\org\junit\rules\RuleChain.class99 * Java compiler version: 5 (49.0)100 * JD-Core Version:       1.1.2101 */...

Source:DefaultProductContextRules.java

...25         {26             this.chain = RuleChain.outerRule(driverCleanupRule);27         }28         @Override29         public Statement apply(Statement base, Description description)30         {31             return chain.apply(base, description);32         }33     }34    public final static class ForMethod implements TestRule35    {36        private final RuleChain chain;37        @Inject38        public ForMethod(IgnoreBrowserRule ignoreBrowserRule,39                         JavaScriptErrorsRule javaScriptErrorsRule,40                         LogPageSourceRule logPageSourceRule,41                         SessionCleanupRule sessionCleanupRule,42                         WebDriverScreenshotRule webDriverScreenshotRule,43                         WindowSizeRule windowSizeRule)44        {45            this.chain = RuleChain.outerRule(ignoreBrowserRule)46                    .around(sessionCleanupRule)47                    .around(windowSizeRule)48                    .around(javaScriptErrorsRule)49                    .around(webDriverScreenshotRule)50                    .around(logPageSourceRule);51        }52        @Override53        public Statement apply(Statement base, Description description)54        {55            return chain.apply(base, description);56        }57    }58}...

Source:MethodRuleChain.java

...32    /**33     * {@inheritDoc}34     */35    @Override36    public Statement apply(Statement base, FrameworkMethod method, Object target) {37        for (MethodRule each : rulesStartingWithInnerMost)38            base= each.apply(base, method, target);39        return base;40    }41}...

Source:DropwizardAppWithKafkaRule.java

...20        );21        ruleChain = RuleChain.outerRule(kafkaRule).around(appRule);22    }23    @Override24    public Statement apply(Statement base, Description description) {25        return ruleChain.apply(new Statement() {26            @Override27            public void evaluate() throws Throwable {28                System.out.println("starting dropwizard app");29                base.evaluate();30            }31        }, description);32    }33    public void stop() {34        kafkaRule.stop();35    }36    public int getLocalPort() {37        return appRule.getLocalPort();38    }39}...

Source:FragmentTestRule.java

...30    public A getActivity() {31        return activityRule.getActivity();32    }33    @Override34    public Statement apply(Statement statement, Description description) {35        return ruleChain.apply(statement, description);36    }37}...

Source:MySQLTestDatabase.java

...15@ComponentScan({ "utils" })16public class MySQLTestDatabase extends TestDatabase {17    TestRule cleanDatabase = new TestRule() {18        @Override19        public Statement apply(Statement base, Description description) {20            CleanDatabase cleaner = new CleanDatabase();21            cleaner.clearDatabase(getDataSource());22            return base;23        }24    };25    @Rule26    public TestRule ruleChain = RuleChain.outerRule(clearSpringSecurityContext).around(cleanDatabase).around(setContextForEntityBuilders);27}...

apply

Using AI Code Generation

1import org.junit.Rule;2import org.junit.Test;3import org.junit.rules.ExternalResource;4import org.junit.rules.RuleChain;5public class RuleChainTest {6    private ExternalResource rule1 = new ExternalResource() {7        protected void before() throws Throwable {8            System.out.println("Rule1 before()");9        }10        protected void after() {11            System.out.println("Rule1 after()");12        }13    };14    private ExternalResource rule2 = new ExternalResource() {15        protected void before() throws Throwable {16            System.out.println("Rule2 before()");17        }18        protected void after() {19            System.out.println("Rule2 after()");20        }21    };22    public RuleChain ruleChain = RuleChain.outerRule(rule1).around(rule2);23    public void test() {24        System.out.println("Test");25    }26}27Rule1 before()28Rule2 before()29Rule2 after()30Rule1 after()

apply

Using AI Code Generation

1import org.junit.Rule;2import org.junit.Test;3import org.junit.rules.RuleChain;4import org.junit.rules.TestRule;5import org.junit.rules.Verifier;6import org.junit.rules.ExternalResource;7public class RuleChainTest {8    private static final String HELLO = "hello, ";9    private static final String WORLD = "world";10    private StringBuffer buffer = new StringBuffer();11    private ExternalResource resource = new ExternalResource() {12        protected void before() throws Throwable {13            buffer.append(HELLO);14        }15        protected void after() {16            buffer.append("!");17        }18    };19    private Verifier verifier = new Verifier() {20        protected void verify() throws Throwable {21            assertEquals(HELLO + WORLD + "!", buffer.toString());22        }23    };24    public TestRule chain = RuleChain.outerRule(resource).around(verifier);25    public void test() {26        buffer.append(WORLD);27    }28}29[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ junit-4.12 ---30[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ junit-4.12 ---31[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ junit-4.12 ---32[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ junit-4.12 ---

apply

Using AI Code Generation

1public class RuleChainExample {2    public final RuleChain chain = RuleChain.outerRule(new LoggingRule("outer rule"))3            .around(new LoggingRule("middle rule"))4            .around(new LoggingRule("inner rule"));5    public void example() {6    }7}8public class LoggingRule implements TestRule {9    private final String name;10    public LoggingRule(String name) {11        this.name = name;12    }13    public Statement apply(Statement base, Description description) {14        return new Statement() {15            public void evaluate() throws Throwable {16                System.out.println(name + ": starting");17                try {18                    base.evaluate();19                } finally {20                    System.out.println(name + ": finished");21                }22            }23        };24    }25}26public class RuleChainExample {27    public final RuleChain chain = RuleChain.outerRule(new LoggingRule("outer rule"))28            .around(new LoggingRule("middle rule"))29            .around(new LoggingRule("inner rule"));30    public void example() {31    }32}33public class LoggingRule implements TestRule {34    private final String name;35    public LoggingRule(String name) {36        this.name = name;37    }38    public Statement apply(Statement base, Description description) {39        return new Statement() {40            public void evaluate() throws Throwable {41                System.out.println(name + ": starting");42                try {43                    base.evaluate();44                } finally {45                    System.out.println(name + ": finished");46                }47            }48        };49    }50}

apply

Using AI Code Generation

1package com.example;2import org.junit.Rule;3import org.junit.Test;4import org.junit.rules.RuleChain;5import org.junit.rules.TestRule;6import org.junit.rules.TestWatcher;7import org.junit.runner.Description;8public class RuleChainTest {9            .outerRule(new TestWatcher() {10                protected void starting(Description description) {11                    System.out.println("outer starting");12                }13                protected void finished(Description description) {14                    System.out.println("outer finished");15                }16            })17            .around(new TestWatcher() {18                protected void starting(Description description) {19                    System.out.println("middle starting");20                }21                protected void finished(Description description) {22                    System.out.println("middle finished");23                }24            })25            .around(new TestWatcher() {26                protected void starting(Description description) {27                    System.out.println("inner starting");28                }29                protected void finished(Description description) {30                    System.out.println("inner finished");31                }32            });33    public void test() {34        System.out.println("test");35    }36}37package com.example;38import org.junit.Rule;39import org.junit.Test;40import org.junit.rules.RuleChain;41import org.junit.rules.TestRule;42import org.junit.rules

apply

Using AI Code Generation

1import org.junit.Rule;2import org.junit.Test;3import org.junit.rules.ExternalResource;4import org.junit.rules.RuleChain;5public class RuleChainTest {6			.outerRule(new ExternalResource() {7				protected void before() {8					System.out.println("Rule1 before()");9				}10				protected void after() {11					System.out.println("Rule1 after()");12				}13			})14			.around(new ExternalResource() {15				protected void before() {16					System.out.println("Rule2 before()");17				}18				protected void after() {19					System.out.println("Rule2 after()");20				}21			})22			.around(new ExternalResource() {23				protected void before() {24					System.out.println("Rule3 before()");25				}26				protected void after() {27					System.out.println("Rule3 after()");28				}29			})30			.around(new ExternalResource() {31				protected void before() {32					System.out.println("Rule4 before()");33				}34				protected void after() {35					System.out.println("Rule4 after()");36				}37			});38	public void test() {39		System.out.println("test()");40	}41}42Rule1 before()43Rule2 before()44Rule3 before()45Rule4 before()46test()47Rule4 after()48Rule3 after()49Rule2 after()50Rule1 after()51Example 2: Using apply() method to create a rule chain52package com.journaldev.junit.rules;53import org.junit.Rule;54import org.junit.Test;55import org.junit.rules.ExternalResource;56import org.junit.rules.RuleChain;57public class RuleChainTest2 {

apply

Using AI Code Generation

1RuleChain chain = RuleChain.outerRule(new MyRule1())2    .around(new MyRule2())3    .around(new MyRule3());4public RuleChain ruleChain = chain;5public class MyRule implements TestRule {6    public Statement apply(Statement base, Description description) {7        return new Statement() {8            public void evaluate() throws Throwable {9                System.out.println("MyRule: before method");10                base.evaluate();11                System.out.println("MyRule: after method");12            }13        };14    }15}16public class MyTest {17    public RuleChain chain = RuleChain.outerRule(new MyRule())18        .around(new MyRule())19        .around(new MyRule());20    public void test() {21        System.out.println("test method");22    }23}

JUnit Tutorial:

LambdaTest also has a detailed JUnit tutorial explaining its features, importance, advanced use cases, best practices, and more to help you get started with running your automation testing scripts.

JUnit Tutorial Chapters:

Here are the detailed JUnit testing chapters to help you get started:

Importance of Unit testing - Learn why Unit testing is essential during the development phase to identify bugs and errors.
Top Java Unit testing frameworks - Here are the upcoming JUnit automation testing frameworks that you can use in 2023 to boost your unit testing.
What is the JUnit framework
Why is JUnit testing important - Learn the importance and numerous benefits of using the JUnit testing framework.
Features of JUnit - Learn about the numerous features of JUnit and why developers prefer it.
JUnit 5 vs. JUnit 4: Differences - Here is a complete comparison between JUnit 5 and JUnit 4 testing frameworks.
Setting up the JUnit environment - Learn how to set up your JUnit testing environment.
Getting started with JUnit testing - After successfully setting up your JUnit environment, this chapter will help you get started with JUnit testing in no time.
Parallel testing with JUnit - Parallel Testing can be used to reduce test execution time and improve test efficiency. Learn how to perform parallel testing with JUnit.
Annotations in JUnit - When writing automation scripts with JUnit, we can use JUnit annotations to specify the type of methods in our test code. This helps us identify those methods when we run JUnit tests using Selenium WebDriver. Learn in detail what annotations are in JUnit.
Assertions in JUnit - Assertions are used to validate or test that the result of an action/functionality is the same as expected. Learn in detail what assertions are and how to use them while performing JUnit testing.
Parameterization in JUnit - Parameterized Test enables you to run the same automated test scripts with different variables. By collecting data on each method's test parameters, you can minimize time spent on writing tests. Learn how to use parameterization in JUnit.
Nested Tests In JUnit 5 - A nested class is a non-static class contained within another class in a hierarchical structure. It can share the state and setup of the outer class. Learn about nested annotations in JUnit 5 with examples.
Best practices for JUnit testing - Learn about the best practices, such as always testing key methods and classes, integrating JUnit tests with your build, and more to get the best possible results.
Advanced Use Cases for JUnit testing - Take a deep dive into the advanced use cases, such as how to run JUnit tests in Jupiter, how to use JUnit 5 Mockito for Unit testing, and more for JUnit testing.