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How to use ExternalResource class of org.junit.rules package

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

Source:Dropwizard.java

...431        try (Harness harness = BenchmarkTestBase.makeHarness(REPO)) {432            long start = System.currentTimeMillis();433            SymbolDescriptor descriptor = SymbolDescriptor.of(434                    ElementKind.CLASS,435                    "ExternalResource",436                    "org.junit.rules.ExternalResource",437                    "ExternalResource",438                    "org.junit.rules",439                    null440            );441442            harness.expectXReferences(descriptor, Maps.newHashMap(),443                    WorkspaceXReferencesResult.of(444                            ReferenceInformation.of(Location.of("file:///dropwizard-jdbi/src/test/java/io/dropwizard/jdbi/timestamps/DBIClient.java", 9, 23, 9, 39), SymbolDescriptor.of(ElementKind.CLASS, "ExternalResource", "org.junit.rules.ExternalResource", "ExternalResource", "org.junit.rules", null)),445                            ReferenceInformation.of(Location.of("file:///dropwizard-jdbi/src/test/java/io/dropwizard/jdbi/timestamps/DBIClient.java", 19, 31, 19, 47), SymbolDescriptor.of(ElementKind.CLASS, "ExternalResource", "org.junit.rules.ExternalResource", "ExternalResource", "org.junit.rules", null)),446                            ReferenceInformation.of(Location.of("file:///dropwizard-jdbi/src/test/java/io/dropwizard/jdbi/timestamps/DatabaseInTimeZone.java", 3, 23, 3, 39), SymbolDescriptor.of(ElementKind.CLASS, "ExternalResource", "org.junit.rules.ExternalResource", "ExternalResource", "org.junit.rules", null)),447                            ReferenceInformation.of(Location.of("file:///dropwizard-jdbi/src/test/java/io/dropwizard/jdbi/timestamps/DatabaseInTimeZone.java", 13, 40, 13, 56), SymbolDescriptor.of(ElementKind.CLASS, "ExternalResource", "org.junit.rules.ExternalResource", "ExternalResource", "org.junit.rules", null)),448                            ReferenceInformation.of(Location.of("file:///dropwizard-testing/src/main/java/io/dropwizard/testing/junit/DAOTestRule.java", 10, 23, 10, 39), SymbolDescriptor.of(ElementKind.CLASS, "ExternalResource", "org.junit.rules.ExternalResource", "ExternalResource", "org.junit.rules", null)),449                            ReferenceInformation.of(Location.of("file:///dropwizard-testing/src/main/java/io/dropwizard/testing/junit/DAOTestRule.java", 47, 33, 47, 49), SymbolDescriptor.of(ElementKind.CLASS, "ExternalResource", "org.junit.rules.ExternalResource", "ExternalResource", "org.junit.rules", null)),450                            ReferenceInformation.of(Location.of("file:///dropwizard-testing/src/main/java/io/dropwizard/testing/junit/DropwizardAppRule.java", 13, 23, 13, 39), SymbolDescriptor.of(ElementKind.CLASS, "ExternalResource", "org.junit.rules.ExternalResource", "ExternalResource", "org.junit.rules", null)),451                            ReferenceInformation.of(Location.of("file:///dropwizard-testing/src/main/java/io/dropwizard/testing/junit/DropwizardAppRule.java", 69, 64, 69, 80), SymbolDescriptor.of(ElementKind.CLASS, "ExternalResource", "org.junit.rules.ExternalResource", "ExternalResource", "org.junit.rules", null)),452                            ReferenceInformation.of(Location.of("file:///dropwizard-testing/src/main/java/io/dropwizard/testing/junit/DropwizardClientRule.java", 10, 23, 10, 39), SymbolDescriptor.of(ElementKind.CLASS, "ExternalResource", "org.junit.rules.ExternalResource", "ExternalResource", "org.junit.rules", null)),453                            ReferenceInformation.of(Location.of("file:///dropwizard-testing/src/main/java/io/dropwizard/testing/junit/DropwizardClientRule.java", 54, 42, 54, 58), SymbolDescriptor.of(ElementKind.CLASS, "ExternalResource", "org.junit.rules.ExternalResource", "ExternalResource", "org.junit.rules", null))454                    )455            );456            LOG.info("Cold XReferences took {}", (System.currentTimeMillis() - start) / 1000.0);457        }458    }459460    @Ignore // TODO: do this in a way that doesn't send messages to a server that's received a shutdown request461    @Test(timeout = 1000)462    public void d_warmXReferences() throws Exception {463        try (Harness harness = BenchmarkTestBase.getHarness()) {464            long start = System.currentTimeMillis();465            SymbolDescriptor descriptor = SymbolDescriptor.of(466                    ElementKind.CLASS,467                    "ExternalResource",468                    "org.junit.rules.ExternalResource",469                    "ExternalResource",470                    "org.junit.rules",471                    null472            );473474            harness.expectXReferences(descriptor, Maps.newHashMap(),475                    WorkspaceXReferencesResult.of(476                            ReferenceInformation.of(Location.of("file:///dropwizard-jdbi/src/test/java/io/dropwizard/jdbi/timestamps/DBIClient.java", 9, 23, 9, 39), SymbolDescriptor.of(ElementKind.CLASS, "ExternalResource", "org.junit.rules.ExternalResource", "ExternalResource", "org.junit.rules", null)),477                            ReferenceInformation.of(Location.of("file:///dropwizard-jdbi/src/test/java/io/dropwizard/jdbi/timestamps/DBIClient.java", 19, 31, 19, 47), SymbolDescriptor.of(ElementKind.CLASS, "ExternalResource", "org.junit.rules.ExternalResource", "ExternalResource", "org.junit.rules", null)),478                            ReferenceInformation.of(Location.of("file:///dropwizard-jdbi/src/test/java/io/dropwizard/jdbi/timestamps/DatabaseInTimeZone.java", 3, 23, 3, 39), SymbolDescriptor.of(ElementKind.CLASS, "ExternalResource", "org.junit.rules.ExternalResource", "ExternalResource", "org.junit.rules", null)),479                            ReferenceInformation.of(Location.of("file:///dropwizard-jdbi/src/test/java/io/dropwizard/jdbi/timestamps/DatabaseInTimeZone.java", 13, 40, 13, 56), SymbolDescriptor.of(ElementKind.CLASS, "ExternalResource", "org.junit.rules.ExternalResource", "ExternalResource", "org.junit.rules", null)),480                            ReferenceInformation.of(Location.of("file:///dropwizard-testing/src/main/java/io/dropwizard/testing/junit/DAOTestRule.java", 10, 23, 10, 39), SymbolDescriptor.of(ElementKind.CLASS, "ExternalResource", "org.junit.rules.ExternalResource", "ExternalResource", "org.junit.rules", null)),481                            ReferenceInformation.of(Location.of("file:///dropwizard-testing/src/main/java/io/dropwizard/testing/junit/DAOTestRule.java", 47, 33, 47, 49), SymbolDescriptor.of(ElementKind.CLASS, "ExternalResource", "org.junit.rules.ExternalResource", "ExternalResource", "org.junit.rules", null)),482                            ReferenceInformation.of(Location.of("file:///dropwizard-testing/src/main/java/io/dropwizard/testing/junit/DropwizardAppRule.java", 13, 23, 13, 39), SymbolDescriptor.of(ElementKind.CLASS, "ExternalResource", "org.junit.rules.ExternalResource", "ExternalResource", "org.junit.rules", null)),483                            ReferenceInformation.of(Location.of("file:///dropwizard-testing/src/main/java/io/dropwizard/testing/junit/DropwizardAppRule.java", 69, 64, 69, 80), SymbolDescriptor.of(ElementKind.CLASS, "ExternalResource", "org.junit.rules.ExternalResource", "ExternalResource", "org.junit.rules", null)),484                            ReferenceInformation.of(Location.of("file:///dropwizard-testing/src/main/java/io/dropwizard/testing/junit/DropwizardClientRule.java", 10, 23, 10, 39), SymbolDescriptor.of(ElementKind.CLASS, "ExternalResource", "org.junit.rules.ExternalResource", "ExternalResource", "org.junit.rules", null)),485                            ReferenceInformation.of(Location.of("file:///dropwizard-testing/src/main/java/io/dropwizard/testing/junit/DropwizardClientRule.java", 54, 42, 54, 58), SymbolDescriptor.of(ElementKind.CLASS, "ExternalResource", "org.junit.rules.ExternalResource", "ExternalResource", "org.junit.rules", null))486                    )487            );488            LOG.info("Warm XReferences took {}", (System.currentTimeMillis() - start) / 1000.0);489        }490    }491492    @Test(timeout = 12000)493    public void e_ReferencesToLocalVar() throws Exception {494        try (Harness harness = BenchmarkTestBase.makeHarness(REPO)) {495            long start = System.currentTimeMillis();496            harness.expectReferences("file:///dropwizard-auth/src/main/java/io/dropwizard/auth/AuthDynamicFeature.java",497                    42, 21,498                    false,499                    TextDocumentReferencesResult.of(
...

Source:ClassRule.java

...32 * all the test classes run, and disconnects after they are finished:33 * <pre>34 * &#064;RunWith(Suite.class)35 * &#064;SuiteClasses({A.class, B.class, C.class})36 * public class UsesExternalResource {37 *     public static Server myServer= new Server();38 *39 *     &#064;ClassRule40 *     public static ExternalResource resource= new ExternalResource() {41 *       &#064;Override42 *       protected void before() throws Throwable {43 *          myServer.connect();44 *      }45 *46 *      &#064;Override47 *      protected void after() {48 * 	        myServer.disconnect();49 *      }50 *   };51 * }52 * </pre>53 * <p>54 * and the same using a method55 * <pre>56 * &#064;RunWith(Suite.class)57 * &#064;SuiteClasses({A.class, B.class, C.class})58 * public class UsesExternalResource {59 *     public static Server myServer= new Server();60 *61 *     &#064;ClassRule62 *     public static ExternalResource getResource() {63 *         return new ExternalResource() {64 *             &#064;Override65 *             protected void before() throws Throwable {66 *                 myServer.connect();67 *             }68 *69 *             &#064;Override70 *             protected void after() {71 *                 myServer.disconnect();72 *             }73 *         };74 *     }75 * }76 * </pre>77 * <p>...

Source:BaseSuite.java

...12 */13package com.thoughtworks.selenium;14import java.util.logging.Logger;15import org.junit.ClassRule;16import org.junit.rules.ExternalResource;17import org.junit.rules.RuleChain;18import org.junit.rules.TestRule;19import org.openqa.selenium.environment.GlobalTestEnvironment;20import org.openqa.selenium.environment.TestEnvironment;21import org.openqa.selenium.v1.SeleniumTestEnvironment;22public class BaseSuite {23  24  private static final Logger log = Logger.getLogger(BaseSuite.class.getName());25  public static ExternalResource testEnvironment = new ExternalResource() {26    @Override27    protected void before() throws Throwable {28      log.info("Preparing test environment");29      GlobalTestEnvironment.get(SeleniumTestEnvironment.class);30    }31    @Override32    protected void after() {33      log.info("Cleaning test environment");34      TestEnvironment environment = GlobalTestEnvironment.get();35      if (environment != null) {36        environment.stop();37        GlobalTestEnvironment.set(null);38      }39    }40  };41  42  public static ExternalResource browser = new ExternalResource() {43    @Override44    protected void after() {45      log.info("Stopping browser");46      try {47        InternalSelenseTestBase.destroyDriver();48      } catch (SeleniumException ignored) {49        // Nothing sane to do50      }51    }52  };53  54  @ClassRule55  public static TestRule chain =56      RuleChain.outerRule(testEnvironment).around(browser);...

Source:ExternalResourceTest.java

...3import org.junit.Before;4import org.junit.Rule;5import org.junit.Test;6import org.junit.rules.ErrorCollector;7import org.junit.rules.ExternalResource;8/**9 * Created by caiyunwu on 2017/3/23.10 */11public class ExternalResourceTest {12    @Before13    public void setUp() throws Exception {14        System.out.println("before");15    }16    @After17    public void tearDown() throws Exception {18        System.out.println("after");19    }20    @Rule21    public final ExternalResource resource = new ExternalResource() {22        @Override23        protected void before() throws Throwable {24            System.out.println("ExternalResource before");25        }26        @Override27        protected void after() {28            System.out.println("ExternalResource after");29        }30    };31    @Test32    public void testExternalResource() throws Exception {33        System.out.println("testExternalResource");34    }35}...

ExternalResource

Using AI Code Generation

1import org.junit.Rule;2import org.junit.Test;3import org.junit.rules.ExternalResource;4public class ExternalResourceTest {5    public ExternalResource resource = new ExternalResource(){6        protected void before() throws Throwable {7            System.out.println("before");8        }9        protected void after() {10            System.out.println("after");11        }12    };13    public void test() {14        System.out.println("test");15    }16}

ExternalResource

Using AI Code Generation

1import org.junit.Rule;2import org.junit.Test;3import org.junit.rules.ExternalResource;4import org.junit.rules.TemporaryFolder;5import java.io.File;6import java.io.IOException;7import java.nio.file.Files;8import java.nio.file.Path;9import java.nio.file.Paths;10public class JUnitRuleExample {11    public TemporaryFolder temporaryFolder = new TemporaryFolder();12    public ExternalResource resource = new ExternalResource() {13        protected void before() throws Throwable {14            System.out.println("before");15        }16        protected void after() {17            System.out.println("after");18        }19    };20    public void testUsingTempFolder() throws IOException {21        File createdFile = temporaryFolder.newFile("test.txt");22        Path path = Paths.get(createdFile.getAbsolutePath());23        Files.write(path, "test".getBytes());24    }25}26javac -cp .;junit-4.12.jar;hamcrest-core-1.3.jar JUnitRuleExample.java27java -cp .;junit-4.12.jar;hamcrest-core-1.3.jar org.junit.runner.JUnitCore JUnitRuleExample28OK (1 test)

ExternalResource

Using AI Code Generation

1import org.junit.rules.ExternalResource;2public class ExternalResourceRuleTest {3    public ExternalResource resource = new ExternalResource() {4        protected void before() throws Throwable {5            System.out.println("before method is called");6        }7        protected void after() {8            System.out.println("after method is called");9        }10    };11    public void testExternalResource() {12        System.out.println("test method is called");13    }14}

ExternalResource

Using AI Code Generation

1import static org.junit.Assert.assertEquals;2import org.junit.Rule;3import org.junit.Test;4import org.junit.rules.ExternalResource;5public class TestExternalResource {6    public ExternalResource externalResource = new ExternalResource() {7        protected void before() throws Throwable {8            System.out.println("before called");9        }10        protected void after() {11            System.out.println("after called");12        }13    };14    public void testExternalResource() {15        assertEquals(1, 1);16    }17}

ExternalResource

Using AI Code Generation

1import org.junit.rules.ExternalResource;2import org.junit.rules.RuleChain;3import org.junit.runner.Description;4import org.junit.runners.model.Statement;5import org.junit.rules.TestRule;6public class RuleChainTest {7    public static class MyExternalResource extends ExternalResource {8        protected void before() throws Throwable {9            System.out.println("before");10        }11        protected void after() {12            System.out.println("after");13        }14    }15    public static class MyTestRule implements TestRule {16        public Statement apply(Statement base, Description description) {17            return new Statement() {18                public void evaluate() throws Throwable {19                    System.out.println("before TestRule");20                    base.evaluate();21                    System.out.println("after TestRule");22                }23            };24        }25    }26    public static class MyTestRule2 implements TestRule {27        public Statement apply(Statement base, Description description) {28            return new Statement() {29                public void evaluate() throws Throwable {30                    System.out.println("before TestRule2");31                    base.evaluate();32                    System.out.println("after TestRule2");33                }34            };35        }36    }37    public RuleChain ruleChain = RuleChain.outerRule(new MyTestRule()).around(new MyExternalResource()).around(new MyTestRule2());38    public void test() {39        System.out.println("test");40    }41}42import org.junit.rules.RuleChain;43import org.junit.rules.Test

ExternalResource

Using AI Code Generation

1import static org.junit.Assert.*;2import java.io.*;3import java.net.*;4import org.junit.*;5import org.junit.rules.*;6import org.junit.runner.*;7public class TestExternalResource {8	public ExternalResource resource = new ExternalResource() {9		protected void before() throws Throwable {10			InputStream in = url.openStream();11			FileOutputStream out = new FileOutputStream("example.txt");12			int b;13			while((b = in.read()) != -1) {14				out.write(b);15			}16			out.close();17			in.close();18		}19		protected void after() {20			File file = new File("example.txt");21			file.delete();22		}23	};24	public void test() {25		File file = new File("example.txt");26		assertTrue(file.exists());27	}28}29import org.junit.runner.*;30public class TestExternalResourceTest {31	public static void main(String[] args) {32		Result result = JUnitCore.runClasses(TestExternalResource.class);33		for(Failure failure : result.getFailures()) {34			System.out.println(failure.toString());35		}36		System.out.println(result.wasSuccessful());37	}38}39import org.junit.runner.*;40public class TestExternalResourceTest {41	public static void main(String[] args) {42		Result result = JUnitCore.runClasses(TestExternalResource.class);43		for(Failure failure : result.getFailures()) {44			System.out.println(failure.toString());45		}46		System.out.println(result.wasSuccessful());47	}48}49import static org.junit.Assert.*;50import org.junit

Source: Easy way to get a test file into JUnit

1Map hashmap = new HashMap();23Map map = Collections.SyncronizedMap(hashmap);4

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