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How to use IdempotentBlock class of com.greghaskins.spectrum.internal.blocks package

Best Spectrum code snippet using com.greghaskins.spectrum.internal.blocks.IdempotentBlock

Source:Specification.java

...8import com.greghaskins.spectrum.ThrowingConsumer;9import com.greghaskins.spectrum.ThrowingSupplier;10import com.greghaskins.spectrum.internal.DeclarationState;11import com.greghaskins.spectrum.internal.Suite;12import com.greghaskins.spectrum.internal.blocks.IdempotentBlock;13import com.greghaskins.spectrum.internal.hooks.EagerLetHook;14import com.greghaskins.spectrum.internal.hooks.Hook;15import com.greghaskins.spectrum.internal.hooks.HookContext.AppliesTo;16import com.greghaskins.spectrum.internal.hooks.HookContext.Precedence;17import com.greghaskins.spectrum.internal.hooks.LetHook;18import org.junit.AssumptionViolatedException;19import java.util.function.Supplier;20public interface Specification {21  /**22   * Declare a test suite that describes the expected behavior of the system in a given context.23   *24   * @param context Description of the context for this suite25   * @param block   {@link Block} with one or more calls to {@link #it(String, Block) it} that26   *                define each expected behavior27   */28  static void describe(final String context, final Block block) {29    final Suite suite = DeclarationState.instance()30        .getCurrentSuiteBeingDeclared()31        .addSuite(context);32    suite.applyConfigurationFromBlock(block);33    DeclarationState.instance().beginDeclaration(suite, block);34  }35  /**36   * Focus on this specific suite, while ignoring others.37   *38   * @param context Description of the context for this suite39   * @param block   {@link Block} with one or more calls to {@link #it(String, Block) it} that40   *                define each expected behavior41   * @see #describe(String, Block)42   */43  static void fdescribe(final String context, final Block block) {44    describe(context, with(focus(), block));45  }46  /**47   * Ignore the specific suite.48   *49   * @param context Description of the context for this suite50   * @param block   {@link Block} with one or more calls to {@link #it(String, Block) it} that51   *                define each expected behavior52   * @see #describe(String, Block)53   */54  static void xdescribe(final String context, final Block block) {55    describe(context, with(ignore(), block));56  }57  /**58   * Declare a spec, or test, for an expected behavior of the system in this suite context.59   *60   * @param behavior Description of the expected behavior61   * @param block    {@link Block} that verifies the system behaves as expected and throws a {@link62   *                 java.lang.Throwable Throwable} if that expectation is not met.63   */64  static void it(final String behavior, final Block block) {65    DeclarationState.instance().getCurrentSuiteBeingDeclared().addSpec(behavior, block);66  }67  /**68   * Declare a pending spec (without a block) that will be ignored.69   *70   * @param behavior Description of the expected behavior71   * @see #xit(String, Block)72   */73  static void it(final String behavior) {74    DeclarationState.instance().getCurrentSuiteBeingDeclared().addSpec(behavior, null).ignore();75  }76  /**77   * Focus on this specific spec, while ignoring others.78   *79   * @param behavior Description of the expected behavior80   * @param block    {@link Block} that verifies the system behaves as expected and throws a {@link81   *                 java.lang.Throwable Throwable} if that expectation is not met.82   * @see #it(String, Block)83   */84  static void fit(final String behavior, final Block block) {85    it(behavior, with(focus(), block));86  }87  /**88   * Mark a spec as ignored so that it will be skipped.89   *90   * @param behavior Description of the expected behavior91   * @param block    {@link Block} that will not run, since this spec is ignored.92   * @see #it(String, Block)93   */94  static void xit(final String behavior, final Block block) {95    it(behavior);96  }97  /**98   * Declare a {@link Block} to be run before each spec in the suite.99   *100   * <p>101   * Use this to perform setup actions that are common across tests in the context. If multiple102   * {@code beforeEach} blocks are declared, they will run in declaration order.103   * </p>104   *105   * @param block {@link Block} to run once before each spec106   */107  static void beforeEach(final Block block) {108    DeclarationState.instance().addHook(before(block), AppliesTo.ATOMIC_ONLY, Precedence.LOCAL);109  }110  /**111   * Declare a {@link Block Block} to be run after each spec in the current suite.112   *113   * <p>114   * Use this to perform teardown or cleanup actions that are common across specs in this suite. If115   * multiple {@code afterEach} blocks are declared, they will run in declaration order.116   * </p>117   *118   * @param block {@link Block Block} to run once after each spec119   */120  static void afterEach(final Block block) {121    DeclarationState.instance().addHook(after(block), AppliesTo.ATOMIC_ONLY,122        Precedence.GUARANTEED_CLEAN_UP_LOCAL);123  }124  /**125   * Declare a {@link Block Block} to be run once before all the specs in the current suite begin.126   *127   * <p>128   * Use {@code beforeAll} and {@link #afterAll(Block) afterAll} blocks with caution: since they129   * only run once, shared state <strong>will</strong> leak across specs.130   * </p>131   *132   * @param block {@link Block} to run once before all specs in this suite133   */134  static void beforeAll(final Block block) {135    DeclarationState.instance().addHook(before(new IdempotentBlock(block)), AppliesTo.ATOMIC_ONLY,136        Precedence.SET_UP);137  }138  /**139   * Declare a {@link Block} to be run once after all the specs in the current suite have run.140   *141   * <p>142   * Use {@link #beforeAll(Block) beforeAll} and {@code afterAll} blocks with caution: since they143   * only run once, shared state <strong>will</strong> leak across tests.144   * </p>145   *146   * @param block {@link Block} to run once after all specs in this suite147   */148  static void afterAll(final Block block) {149    DeclarationState.instance().addHook(after(block), AppliesTo.ONCE,...

Source:IdempotentBlock.java

1package com.greghaskins.spectrum.internal.blocks;2import com.greghaskins.spectrum.Block;3public final class IdempotentBlock implements Block {4  private final Block block;5  private Block result;6  public IdempotentBlock(final Block block) {7    this.block = block;8  }9  @Override10  public void run() throws Throwable {11    if (this.result == null) {12      this.result = runBlockOnce(this.block);13    }14    this.result.run();15  }16  private static Block runBlockOnce(final Block block) {17    try {18      block.run();19      return alwaysPass();20    } catch (final Throwable error) {...

IdempotentBlock

Using AI Code Generation

1import com.greghaskins.spectrum.internal.blocks.IdempotentBlock;2public class 1 {3    public static void main(String[] args) {4        IdempotentBlock idempotentBlock = new IdempotentBlock(() -> {5            System.out.println("Hello World");6        });7        idempotentBlock.execute();

IdempotentBlock

Using AI Code Generation

1package com.greghaskins.spectrum.internal.blocks;2import com.greghaskins.spectrum.Block;3import com.greghaskins.spectrum.internal.hooks.Hook;4import com.greghaskins.spectrum.internal.hooks.HookContext;5import com.greghaskins.spectrum.internal.hooks.HookContextImpl;6import com.greghaskins.spectrum.internal.hooks.HookType;7import com.greghaskins.spectrum.internal.hooks.Hookable;8import com.greghaskins.spectrum.internal.junit.BlockJunitTestWrapper;9import com.greghaskins.spectrum.internal.junit.BlockJunitTestWrapperFactory;10import com.greghaskins.spectrum.internal.junit.JunitTestWrapper;11import com.greghaskins.spectrum.internal.junit.JunitTestWrapperFactory;12import com.greghaskins.spectrum.internal.junit.JunitTestWrapperFactoryImpl;13import com.greghaskins.spectrum.internal.junit.JunitTestWrapperImpl;14import com.greghaskins.spectrum.internal.junit.JunitTestWrapperWithHooks;15import com.greghaskins.spectrum.internal.junit.JunitTestWrapperWithHooksImpl;16import com.greghaskins.spectrum.internal.junit.JunitTestWrapperWithHooksImplFactory;17import com.greghaskins.spectrum.internal.junit.JunitTestWrapperWithHooksImplFactoryImpl;18import com.greghaskins.spectrum.internal.junit.JunitTestWrapperWithHooksImplWithHooks;19import com.greghaskins.spectrum.internal.junit.JunitTestWrapperWithHooksImplWithHooksFactory;20import com.greghaskins.spectrum.internal.junit.JunitTestWrapperWithHooksImplWithHooksFactoryImpl;21import com.greghaskins.spectrum.internal.junit.JunitTestWrapperWithHooksWithHooks;22import com.greghaskins.spectrum.internal.junit.JunitTestWrapperWithHooksWithHooksFactory;23import com.greghaskins.spectrum.internal.junit.JunitTestWrapperWithHooksWithHooksFactoryImpl;24import com.greghaskins.spectrum.internal.junit.JunitTestWrapperWithHooksWithHooksImpl;25import com.greghaskins.spectrum.internal.junit.JunitTestWrapperWithHooksWithHooksImplFactory;26import com.greghaskins.spectrum.internal.junit.JunitTestWrapperWithHooksWithHooksImplFactoryImpl;27import com.greghaskins.spectrum.internal.junit.JunitTestWrapperWithHooksWithHooks

IdempotentBlock

Using AI Code Generation

1import com.greghaskins.spectrum.Spectrum;2import com.greghaskins.spectrum.internal.blocks.IdempotentBlock;3public class 1 {4    public static void main(String[] args) {5        Spectrum.describe("IdempotentBlock", () -> {6            Spectrum.it("should be idempotent", () -> {7                IdempotentBlock block = new IdempotentBlock(() -> {8                    System.out.println("Running block");9                });10                block.run();11                block.run();12            });13        });14    }15}16import com.greghaskins.spectrum.Spectrum;17import com.greghaskins.spectrum.internal.blocks.IdempotentBlock;18public class 2 {19    public static void main(String[] args) {20        Spectrum.describe("IdempotentBlock", () -> {21            Spectrum.it("should be idempotent", () -> {22                IdempotentBlock block = new IdempotentBlock(() -> {23                    System.out.println("Running block");24                });25                block.run();26                block.run();27            });28        });29    }30}

IdempotentBlock

Using AI Code Generation

1import com.greghaskins.spectrum.internal.blocks.IdempotentBlock;2import com.greghaskins.spectrum.internal.blocks.SpecificationBlock;3import org.junit.Test;4public class IdempotentBlockTest {5    public void testIdempotentBlock() {6        IdempotentBlock idempotentBlock = new IdempotentBlock(() -> {7            System.out.println("Idempotent block");8        });9        idempotentBlock.execute();10    }11}

IdempotentBlock

Using AI Code Generation

1import com.greghaskins.spectrum.internal.blocks.IdempotentBlock;2import com.greghaskins.spectrum.internal.blocks.TestBlock;3public class 1 {4  public static void main(String[] args) {5    TestBlock testBlock = new IdempotentBlock(() -> {6      System.out.println("Hello World");7    });8    testBlock.execute();9  }10}11import com.greghaskins.spectrum.internal.blocks.IdempotentBlock;12import com.greghaskins.spectrum.internal.blocks.TestBlock;13public class 2 {14  public static void main(String[] args) {15    TestBlock testBlock = new IdempotentBlock(() -> {16      System.out.println("Hello World");17    });18    testBlock.execute();19  }20}21import com.greghaskins.spectrum.internal.blocks.IdempotentBlock;22import com.greghaskins.spectrum.internal.blocks.TestBlock;23public class 3 {24  public static void main(String[] args) {25    TestBlock testBlock = new IdempotentBlock(() -> {26      System.out.println("Hello World");27    });28    testBlock.execute();29  }30}31import com.greghaskins.spectrum.internal.blocks.IdempotentBlock;32import com.greghaskins.spectrum.internal.blocks.TestBlock;33public class 4 {34  public static void main(String[] args) {35    TestBlock testBlock = new IdempotentBlock(() -> {36      System.out.println("Hello World");37    });38    testBlock.execute();39  }40}41import com.greghaskins.spectrum.internal.blocks.IdempotentBlock;42import com.greghaskins

IdempotentBlock

Using AI Code Generation

1package com.greghaskins.spectrum.internal.blocks;2import static com.greghaskins.spectrum.Spectrum.describe;3import static com.greghaskins.spectrum.Spectrum.it;4import com.greghaskins.spectrum.Spectrum;5public class IdempotentBlockTest {6  public static void main(final String[] args) {7    Spectrum.run(IdempotentBlockTest.class);8  }9  {10    describe("idempotent block", () -> {11      final IdempotentBlock block = new IdempotentBlock();12      it("should run the block only once", () -> {13        block.run(() -> {14          System.out.println("hello");15        });16        block.run(() -> {17          System.out.println("hello");18        });19      });20    });21  }22}23package com.greghaskins.spectrum.internal.blocks;24import static com.greghaskins.spectrum.Spectrum.describe;25import static com.greghaskins.spectrum.Spectrum.it;26import com.greghaskins.spectrum.Spectrum;27public class IdempotentBlockTest {28  public static void main(final String[] args) {29    Spectrum.run(IdempotentBlockTest.class);30  }31  {32    describe("idempotent block", () -> {33      final IdempotentBlock block = new IdempotentBlock();34      it("should run the block only once", () -> {35        block.run(() -> {36          System.out.println("hello");37        });38        block.run(() -> {39          System.out.println("hello");40        });41      });42    });43  }44}45package com.greghaskins.spectrum.internal.blocks;46import static com.greghaskins.spectrum.Spectrum.describe;47import static com.greghaskins.spectrum.Spectrum.it;48import com.greghaskins.spectrum.Spectrum;49public class IdempotentBlockTest {50  public static void main(final

IdempotentBlock

Using AI Code Generation

1import com.greghaskins.spectrum.internal.blocks.IdempotentBlock;2import static com.greghaskins.spectrum.Spectrum.describe;3import static com.greghaskins.spectrum.Spectrum.it;4public class 1 {5    public static void main(String[] args) {6        describe("a suite", () -> {7            IdempotentBlock block = new IdempotentBlock(() -> {8                System.out.println("This is run only once");9            });10            it("a test", block);11            it("another test", block);12        });13    }14}15Author: Nishant Nakhare Nishant is a Software Engineer at Intuit. He is a Java Champion and a JavaOne Rock Star. He is the author of the book Java 8 Lambdas (O’Reilly). He is also the creator of the Java 8 Lambdas course on Pluralsight. You can find him on Twitter @nishantnikhil. View all posts by Nishant Nakhare

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