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How to use AbstractSupplyingHook class of com.greghaskins.spectrum.internal.hooks package

Best Spectrum code snippet using com.greghaskins.spectrum.internal.hooks.AbstractSupplyingHook

Source:AbstractSupplyingHook.java

...12 * You can use this to write any plugin which needs to make a value visible to the specs.13 * This is not the only way to achieve that - you can also build from {@link SupplyingHook}14 * but this captures the template for a complex hook.15 */16abstract class AbstractSupplyingHook<T> implements SupplyingHook<T> {17  private final Variable<T> value = new Variable<>();18  /**19   * Override this to supply behaviour for before the block is run.20   *21   * @return the value that the singleton will store to supply22   */23  protected abstract T before();24  /**25   * Override this to give a message for when the value from this hook gets used any time other than26   * while running a test.27   *28   * @return the IllegalStateException message to use29   */30  protected abstract String getExceptionMessageIfUsedAtDeclarationTime();...

Source:Hook.java

...8 * A hook allows you to inject functionality before and/or after a {@link Block}.9 * Just implement the {@link #accept(Description, RunReporting, Block)} method and10 * call {@link Block#run()} within your implementation.11 * If your hook is going to provide an object to the running test, then implement12 * {@link SupplyingHook} or subclass {@link AbstractSupplyingHook}.13 */14@FunctionalInterface15public interface Hook {16  /**17   * Accept the block and execute it, hooking in any behaviour around it.18   * @param description description of where we are in the test19   * @param reporting the object to notify for failures20   * @param block the block to execute21   * @throws Throwable on error22   */23  void accept(final Description description, final RunReporting<Description, Failure> reporting,24      final Block block) throws Throwable;25  /**26   * Override to return true if the inner block cannot report its own errors for some reason....

Source:EagerLetHook.java

...5 *6 * <p>Sematics are the same as with {@link LetHook}, except that all values are calculated at the7 * start of the test, rather than on an as-needed basis.8 */9public class EagerLetHook<T> extends AbstractSupplyingHook<T> {10  private final ThrowingSupplier<T> supplier;11  public EagerLetHook(final ThrowingSupplier<T> supplier) {12    this.supplier = supplier;13  }14  protected T before() {15    return supplier.get();16  }17  protected String getExceptionMessageIfUsedAtDeclarationTime() {18    return "Cannot use the value from eagerLet() in a suite declaration. "19        + "It may only be used in the context of a running spec.";20  }21}...

AbstractSupplyingHook

Using AI Code Generation

1package com.greghaskins.spectrum;2import com.greghaskins.spectrum.internal.hooks.AbstractSupplyingHook;3import com.greghaskins.spectrum.internal.hooks.HookContext;4import com.greghaskins.spectrum.internal.hooks.HookContextSupplier;5import com.greghaskins.spectrum.internal.hooks.HookContextSupplierWithException;6import com.greghaskins.spectrum.internal.hooks.HookContextSupplierWithExceptionAndResult;7import java.util.function.Supplier;8public class MyHook extends AbstractSupplyingHook<MyHook.Context> {9    public static class Context {10        public int x;11        public int y;12    }13    public MyHook() {14        super(Context.class);15    }16    protected HookContextSupplier<Context> getBeforeAllHook() {17        return new HookContextSupplier<Context>() {18            public Context get(HookContext context) throws Exception {19                Context ctx = new Context();20                ctx.x = 1;21                ctx.y = 2;22                return ctx;23            }24        };25    }26    protected HookContextSupplierWithException<Context> getBeforeEachHook() {27        return new HookContextSupplierWithException<Context>() {28            public Context get(HookContext context) throws Exception {29                Context ctx = new Context();30                ctx.x = 3;31                ctx.y = 4;32                return ctx;33            }34        };35    }36    protected HookContextSupplierWithExceptionAndResult<Context, Integer> getAfterEachHook() {37        return new HookContextSupplierWithExceptionAndResult<Context, Integer>() {38            public Context get(HookContext context) throws Exception {39                Context ctx = new Context();40                ctx.x = 5;41                ctx.y = 6;42                return ctx;43            }44            public Integer getAfterResult() {45                return 7;46            }47        };48    }49    protected HookContextSupplierWithException<Context> getAfterAllHook() {50        return new HookContextSupplierWithException<Context>() {51            public Context get(HookContext context) throws Exception {52                Context ctx = new Context();53                ctx.x = 8;54                ctx.y = 9;55                return ctx;56            }57        };58    }59}

AbstractSupplyingHook

Using AI Code Generation

1import com.greghaskins.spectrum.internal.hooks.AbstractSupplyingHook;2import com.greghaskins.spectrum.Spectrum;3import com.greghaskins.spectrum.Spectrum.*;4public class 1 {5    public static void main(String[] args) {6        describe("a suite", () -> {7            it("a test", () -> {8            });9        });10    }11}12import com.greghaskins.spectrum.internal.hooks.AbstractSupplyingHook;13import com.greghaskins.spectrum.Spectrum;14import com.greghaskins.spectrum.Spectrum.*;15public class 2 {16    public static void main(String[] args) {17        describe("a suite", () -> {18            it("a test", () -> {19            });20        });21    }22}23import com.greghaskins.spectrum.internal.hooks.AbstractSupplyingHook;24import com.greghaskins.spectrum.Spectrum;25import com.greghaskins.spectrum.Spectrum.*;26public class 3 {27    public static void main(String[] args) {28        describe("a suite", () -> {29            it("a test", () -> {30            });31        });32    }33}34import com.greghaskins.spectrum.internal.hooks.AbstractSupplyingHook;35import com.greghaskins.spectrum.Spectrum;36import com.greghaskins.spectrum.Spectrum.*;37public class 4 {38    public static void main(String[] args) {39        describe("a suite", () -> {40            it("a test", () -> {41            });42        });43    }44}45import com.greghaskins.spectrum.internal.hooks.AbstractSupplyingHook;46import com.greghaskins.spectrum.Spectrum;47import com.gregh

AbstractSupplyingHook

Using AI Code Generation

1package com.greghaskins.spectrum.internal.hooks;2import com.greghaskins.spectrum.Spectrum;3import com.greghaskins.spectrum.internal.hooks.AbstractSupplyingHook;4import com.greghaskins.spectrum.internal.hooks.Hook;5import com.greghaskins.spectrum.internal.hooks.HookContext;6public class AbstractSupplyingHookTest {7    public static class HookThatReturnsNull extends AbstractSupplyingHook {8        protected Hook supplyHook(HookContext context) {9            return null;10        }11    }12    public static class HookThatReturnsNonNull extends AbstractSupplyingHook {13        protected Hook supplyHook(HookContext context) {14            return () -> {};15        }16    }17    {18        Spectrum.describe("AbstractSupplyingHook", () -> {19            Spectrum.describe("when the hook returns null", () -> {20                Spectrum.it("should return a hook that does nothing", () -> {21                    Hook hook = new HookThatReturnsNull();22                    HookContext context = new HookContext();23                    Hook returnedHook = hook.supply(context);24                    returnedHook.execute();25                });26            });27            Spectrum.describe("when the hook returns a non-null hook", () -> {28                Spectrum.it("should return the hook that was returned", () -> {29                    Hook hook = new HookThatReturnsNonNull();30                    HookContext context = new HookContext();31                    Hook returnedHook = hook.supply(context);32                    returnedHook.execute();33                });34            });35        });36    }37}38package com.greghaskins.spectrum.internal.hooks;39import com.greghaskins.spectrum.Spectrum;40import com.greghaskins.spectrum.internal.hooks.AbstractSupplyingHook;41import com.greghaskins.spectrum.internal.hooks.Hook;42import com.greghaskins.spectrum.internal.hooks.HookContext;43public class AbstractSupplyingHookTest {44    public static class HookThatReturnsNull extends AbstractSupplyingHook {45        protected Hook supplyHook(HookContext context) {46            return null;47        }48    }49    public static class HookThatReturnsNonNull extends AbstractSupplyingHook {50        protected Hook supplyHook(HookContext context) {51            return () -> {};52        }53    }54    {

AbstractSupplyingHook

Using AI Code Generation

1package com.greghaskins.spectrum;2import com.greghaskins.spectrum.internal.hooks.AbstractSupplyingHook;3import com.greghaskins.spectrum.internal.hooks.HookContext;4public class HooksTest {5    public static void main(String[] args) {6        Describe.<String>it("can use a hook", () -> {7            return "hello";8        }).andThen("can use the hook's value", (value) -> {9            System.out.println(value);10        });11    }12}13package com.greghaskins.spectrum;14import com.greghaskins.spectrum.internal.hooks.AbstractSupplyingHook;15import com.greghaskins.spectrum.internal.hooks.HookContext;16public class HooksTest {17    public static void main(String[] args) {18        Describe.<String>it("can use a hook", () -> {19            return "hello";20        }).andThen("can use the hook's value", (value) -> {21            System.out.println(value);22        });23    }24}25package com.greghaskins.spectrum;26import com.greghaskins.spectrum.internal.hooks.AbstractSupplyingHook;27import com.greghaskins.spectrum.internal.hooks.HookContext;28public class HooksTest {29    public static void main(String[] args) {30        Describe.<String>it("can use a hook", () -> {31            return "hello";32        }).andThen("can use the hook's value", (value) -> {33            System.out.println(value);34        });35    }36}37package com.greghaskins.spectrum;38import com.greghaskins.spectrum.internal.hooks.AbstractSupplyingHook;39import com.greghaskins.spectrum.internal.hooks.HookContext;40public class HooksTest {41    public static void main(String[] args) {

AbstractSupplyingHook

Using AI Code Generation

1import com.greghaskins.spectrum.internal.hooks.AbstractSupplyingHook;2import org.junit.runner.Description;3import org.junit.runner.Runner;4import org.junit.runner.notification.RunNotifier;5import org.junit.runners.model.Statement;6public class MyHook extends AbstractSupplyingHook {7    public MyHook(Runner runner) {8        super(runner);9    }10    protected Object supplyValue(Description description) {11        return "some value";12    }13    public Statement apply(Statement base, Description description) {14        return base;15    }16}17import com.greghaskins.spectrum.internal.hooks.AbstractHook;18import org.junit.runner.Description;19import org.junit.runner.Runner;20import org.junit.runner.notification.RunNotifier;21import org.junit.runners.model.Statement;22public class MyHook extends AbstractHook {23    public MyHook(Runner runner) {24        super(runner);25    }26    public Statement apply(Statement base, Description description) {27        return base;28    }29}30import com.greghaskins.spectrum.internal.hooks.AbstractSupplyingHook;31import org.junit.runner.Description;32import org.junit.runner.Runner;33import org.junit.runner.notification.RunNotifier;34import org.junit.runners.model.Statement;35public class MyHook extends AbstractSupplyingHook {36    public MyHook(Runner runner) {37        super(runner);38    }39    protected Object supplyValue(Description description) {40        return "some value";41    }42    public Statement apply(Statement base, Description description) {43        return base;44    }45}46import com.greghaskins.spectrum.internal.hooks.AbstractHook;47import org.junit.runner.Description;48import org.junit.runner.Runner;49import org.junit.runner.notification.RunNotifier;50import org.junit.runners.model.Statement;51public class MyHook extends AbstractHook {52    public MyHook(Runner runner) {53        super(runner);54    }55    public Statement apply(Statement base, Description description) {56        return base;57    }58}

AbstractSupplyingHook

Using AI Code Generation

1import com.greghaskins.spectrum.Spectrum;2import com.greghaskins.spectrum.Spectrum.*;3import com.greghaskins.spectrum.internal.hooks.AbstractSupplyingHook;4import com.greghaskins.spectrum.internal.hooks.Hook;5import com.greghaskins.spectrum.internal.hooks.HookContext;6import com.greghaskins.spectrum.internal.hooks.HookResult;7import com.greghaskins.spectrum.internal.hooks.HookType;8import java.util.ArrayList;9import java.util.List;10public class Example1 {11    public static void main(String[] args) {12        Spectrum.describe("Example1", () -> {13            List<String> logs = new ArrayList<>();14            Spectrum.beforeAndAfterEach(new AbstractSupplyingHook<String>() {15                public HookResult<String> before(HookContext context) {16                    logs.add("before");17                    return HookResult.continueWith("value");18                }19                public void after(HookContext context, String value) {20                    logs.add("after");21                }22            });23            Spectrum.it("test1", () -> {24                logs.add("test1");25            });26            Spectrum.it("test2", () -> {27                logs.add("test2");28            });29            Spectrum.afterAll(() -> {30                logs.add("afterAll");31            });32        }).run();33        System.out.println("logs: " + logs);34    }35}

AbstractSupplyingHook

Using AI Code Generation

1package com.greghaskins.spectrum.example;2import com.greghaskins.spectrum.Spectrum;3import com.greghaskins.spectrum.internal.hooks.AbstractSupplyingHook;4import java.util.function.Supplier;5import static com.greghaskins.spectrum.Spectrum.describe;6import static com.greghaskins.spectrum.Spectrum.it;7public class CustomHookExample {8  public static class CustomHook extends AbstractSupplyingHook<String> {9    public Supplier<String> supply() {10      return () -> "Hello, world!";11    }12  }13  public static void main(String[] args) {14    describe("a test suite", () -> {15      it("uses a custom hook", () -> {16        System.out.println("The hook says: " + hook());17      });18    }, new CustomHook());19  }20}21package com.greghaskins.spectrum.example;22import com.greghaskins.spectrum.Spectrum;23import com.greghaskins.spectrum.internal.hooks.AbstractSupplyingHook;24import java.util.function.Supplier;25import static com.greghaskins.spectrum.Spectrum.describe;26import static com.greghaskins.spectrum.Spectrum.it;27public class CustomHookExample {28  public static class CustomHook extends AbstractSupplyingHook<String> {29    public Supplier<String> supply() {30      return () -> "Hello, world!";31    }32  }33  public static void main(String[] args) {34    describe("a test suite", () -> {35      it("uses a custom hook", () -> {36        System.out.println("The hook says: " + hook());37      });38    }, new CustomHook());39  }40}41package com.greghaskins.spectrum.example;42import com.greghaskins.spectrum.Spectrum;43import com.greghaskins.s

AbstractSupplyingHook

Using AI Code Generation

1import com.greghaskins.spectrum.Spectrum;2import com.greghaskins.spectrum.internal.hooks.AbstractSupplyingHook;3import static com.greghaskins.spectrum.Spectrum.*;4public class 1 {5    public static void main(String[] args) {6        describe("a suite", () -> {7            it("a test", () -> {8                System.out.println(a);9            });10        });11    }12    static int a;13    static {14        Spectrum.hook(new AbstractSupplyingHook() {15            protected Class<?> getTargetType() {16                return int.class;17            }18            protected String getTargetName() {19                return "a";20            }21            protected Object supply() {22                return 5;23            }24            protected boolean isApplicableTo(Class<?> clazz, String methodName) {25                return clazz == 1.class && methodName.equals("testMethod");26            }27        });28    }29}

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