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

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

Source:InternalSelenseTestBase.java

...193    }194  };195  public TestWatcher filter = new TestWatcher() {196    @Override197    public Statement apply(Statement base, Description description) {198      String onlyRun = System.getProperty("only_run");199      Assume.assumeTrue(onlyRun == null ||200          Arrays.asList(onlyRun.split(",")).contains(description.getTestClass().getSimpleName()));201      String mth = System.getProperty("method");202      Assume.assumeTrue(mth == null ||203          Arrays.asList(mth.split(",")).contains(description.getMethodName()));204      return super.apply(base, description);205    }206  };207  @Rule208  public TestRule chain =209      RuleChain.outerRule(filter)210               .around(initializeSelenium)211               .around(returnFocusToMainWindow)212               .around(addNecessaryJavascriptCommands)213               .around(traceMethodName);214  @After215  public void checkVerifications() {216    checkForVerificationErrors();217  }218  private String whereIs(String location) {...

Source:SimpleRestServiceSetup.java

...43			.around(mysqlContainer)44			.around(applicationConfigurator)45			.around(applicationContainer);46	@Override47	public Statement apply(Statement base, Description description) {48		return allContainers.apply(base, description);49	}50	private int getMappedPort() {51		return applicationContainer.getMappedPort(8080);52	}53	public String getBaseUrl() {54		return "http://localhost:" + getMappedPort();55	}56}...

Source:BaseTest.java

...16    @ClassRule17    public static ExternalResource resource = new ExternalResource() {18        private Description description;19        @Override20        public Statement apply(Statement base, Description description) {21            this.description = description;22            return super.apply(base, description);23        }24        @Override25        protected void before(){26            try {27            } catch (Exception e){28                e.printStackTrace();29            }30        }31        @Override32        protected void after(){33            try {34            } catch (Exception ex){35                ex.printStackTrace();36            }37        }38    };39    @Rule40    public TestRule watchman = new TestWatcher() {41        private Description description;42        @Override43        public Statement apply(Statement base, Description description) {44            this.description = description;45            return super.apply(base, description);46        }47        @Override48        protected void succeeded(Description description){ testStatus = PASSED; }49        @Override50        protected void failed(Throwable e, Description description){51            if(e instanceof AssertionError){52                testStatus = FAILED;53            } else {54                testStatus = ERROR;55            }56        }57        @Override58        protected void skipped(AssumptionViolatedException e, Description description){59            testStatus = IGNORED;...

Source:SOCContext.java

...42            }43        };44    }45    @Override46    public Statement apply(final Statement base, final Description description) {47        return this.delegate.apply(base, description);48    }49}...

Source:FailsafeExternalResource.java

...15 */16public class FailsafeExternalResource extends ExternalResource17{18    private static final Logger log = LoggerFactory.getLogger(FailsafeExternalResource.class);19    public final Statement apply(final Statement base, Description description)20    {21        return new Statement()22        {23            @Override24            public void evaluate() throws Throwable25            {26                before();27                try28                {29                    base.evaluate();30                }31                catch (Throwable t)32                {33                    try...

Source:DbInitializerRule.java

...10public class DbInitializerRule implements TestRule {11  private final DbInitializer mInitializer = new DbInitializer();12  private AppDatabase mDb;13  @Override14  public Statement apply(Statement statement, Description description) {15    return mInitializer.apply(statement, description);16  }17  public AppDatabase getDb() {18    return mDb;19  }20  private class DbInitializer extends ExternalResource {21    @Override22    protected void before() throws Throwable {23      initializeInMemoryDb();24    }25    @Override26    protected void after() {27      mDb.close();28    }29    private void initializeInMemoryDb() {...

Source:RuleTest.java

...10    boolean testRuleãåãã = false;11    @Rule12    public TestRule testRule = new TestRule() {13        @Override14        public Statement apply(Statement base, Description description) {15            testRuleãåãã = true;16            return new Statement() {17                @Override18                public void evaluate() throws Throwable {19                    base.evaluate();20                }21            };22        }23    };24    boolean externalResourceãåãã = false;25    @Rule26    public ExternalResource externalResource = new ExternalResource() {27        @Override28        protected void before() throws Throwable {...

Source:ExternalResource.java

2import org.junit.runner.Description;3import org.junit.runners.model.Statement;4public abstract class ExternalResource implements TestRule {5    @Override // org.junit.rules.TestRule6    public Statement apply(Statement base, Description description) {7        return statement(base);8    }9    private Statement statement(final Statement base) {10        return new Statement() {11            /* class org.junit.rules.ExternalResource.AnonymousClass1 */12            @Override // org.junit.runners.model.Statement13            public void evaluate() throws Throwable {14                ExternalResource.this.before();15                try {16                    base.evaluate();17                } finally {18                    ExternalResource.this.after();19                }20            }...

apply

Using AI Code Generation

1public class ExternalResourceTest {2    public ExternalResource resource = new ExternalResource() {3        protected void before() throws Throwable {4            System.out.println("Before Test");5        }6        protected void after() {7            System.out.println("After Test");8        }9    };10    public void test1() {11        System.out.println("Test1");12    }13    public void test2() {14        System.out.println("Test2");15    }16}17JUnit ExpectedException.none() method18JUnit TemporaryFolder.newFile() method19JUnit TemporaryFolder.newFolder() method20JUnit TemporaryFolder.getRoot() method21JUnit TemporaryFolder.delete() method22JUnit TemporaryFolder.create() method23JUnit TemporaryFolder.newFolder(String...) method24JUnit TemporaryFolder.newFile(String) method25JUnit TemporaryFolder.newFile(String...) method26JUnit TemporaryFolder.newFolder(String) method27JUnit TemporaryFolder.newFile() method28JUnit TemporaryFolder.newFolder(String...) method29JUnit TemporaryFolder.newFile(String) method30JUnit TemporaryFolder.newFile(String...) method31JUnit TemporaryFolder.newFolder(String) method32JUnit TemporaryFolder.newFile() method33JUnit TemporaryFolder.newFolder(String...) method34JUnit TemporaryFolder.newFile(String) method35JUnit TemporaryFolder.newFile(String...) method36JUnit TemporaryFolder.newFolder(String) method37JUnit TemporaryFolder.newFile() method38JUnit TemporaryFolder.newFolder(String...) method39JUnit TemporaryFolder.newFile(String) method40JUnit TemporaryFolder.newFile(String...) method41JUnit TemporaryFolder.newFolder(String) method

apply

Using AI Code Generation

1public class ExternalResourceExample extends ExternalResource {2    private static final Logger LOGGER = LoggerFactory.getLogger(ExternalResourceExample.class);3    protected void before() throws Throwable {4        LOGGER.info("Before method called");5    }6    protected void after() {7        LOGGER.info("After method called");8    }9    public void test() {10        LOGGER.info("Test method called");11    }12}

apply

Using AI Code Generation

1import org.junit.Test;2import org.junit.Rule;3import org.junit.rules.ExternalResource;4import org.junit.rules.TestRule;5import org.junit.runner.Description;6import org.junit.runners.model.Statement;7public class JUnit4ExternalResourceTest {8    public TestRule rule = new ExternalResource() {9        protected void before() throws Throwable {10            System.out.println("before");11        }12        protected void after() {13            System.out.println("after");14        }15    };16    public void test() {17        System.out.println("test");18    }19}

apply

Using AI Code Generation

1class MyResource extends ExternalResource {  2  override def before(): Unit = println("before")  3  override def after(): Unit = println("after")  4}5class MyTest {  6  val resource = new MyResource()7  def test1(): Unit = println("test1")  8  def test2(): Unit = println("test2")  9}  10class MyResource {  11  def before(): Unit = println("before")  12  def after(): Unit = println("after")  13}14class MyTest {  15  val resource = new MyResource()16  def test1(): Unit = println("test1")  17  def test2(): Unit = println("test2")  18}  19import org.junit.runner.Description  20import org.junit.runners.model.Statement21trait TestRule {  22  def apply(base: Statement, description: Description): Statement  23}  24abstract class Statement {  25  def evaluate(): Unit  26}

apply

Using AI Code Generation

1public class DatabaseTest {2    public ExternalResource resource = new ExternalResource() {3        protected void before() throws Throwable {4        }5        protected void after() {6        }7    };8    public void test1() {9    }10    public void test2() {11    }12}13The ExternalResource class is a simple implementation of the TestRule interface. It provides two methods, before() and after(), which are called before and after

apply

Using AI Code Generation

1import org.junit.Rule;2import org.junit.Test;3import org.junit.rules.ExternalResource;4import java.io.File;5import java.io.IOException;6import static org.junit.Assert.assertTrue;7public class TemporaryDirectoryTest {8    public TemporaryFolder folder = new TemporaryFolder();9    public void testUsingTempFolder() throws IOException {10        File createdFile = folder.newFile("myfile.txt");11        File createdFolder = folder.newFolder("subfolder");12        assertTrue(createdFile.isFile());13        assertTrue(createdFolder.isDirectory());14    }15    public class TemporaryFolder extends ExternalResource {16        private File tempFolder;17        protected void before() throws Throwable {18            tempFolder = File.createTempFile("temp", Long.toString(System.nanoTime()));19            if(!(tempFolder.delete())) {20                throw new IOException("Could not delete temp file: " + tempFolder.getAbsolutePath());21            }22            if(!(tempFolder.mkdir())) {23                throw new IOException("Could not create temp directory: " + tempFolder.getAbsolutePath());24            }25        }26        protected void after() {27            delete(tempFolder);28        }29        public File newFile(String fileName) throws IOException {30            File file = new File(tempFolder, fileName);31            if(file.createNewFile()) {32                return file;33            } else {34                throw new IOException("Could not create file " + file);35            }36        }37        public File newFolder(String folderName) {38            File folder = new File(tempFolder, folderName);39            if(folder.mkdir()) {40                return folder;41            } else {42                throw new RuntimeException("Could not create folder " + folder);43            }44        }45        public File getRoot() {46            return tempFolder;47        }48        private void delete(File file) {49            if(file.isDirectory()) {50                for(File c : file.listFiles()) {51                    delete(c);52                }53            }54            if(!file.delete()) {55                throw new RuntimeException("Failed to delete file: " + file);56            }57        }58    }59}

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Importance of Unit testing - Learn why Unit testing is essential during the development phase to identify bugs and errors.
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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.
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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.