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

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

Source:Specification.java

...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,150        Precedence.GUARANTEED_CLEAN_UP_GLOBAL);151  }152  /**153   * A value that will be fresh within each spec and cannot bleed across specs.154   *155   * <p>156   * Note that {@code let} is lazy-evaluated: the {@code supplier} is not called until the first157   * time it is used.158   * </p>159   *160   * @param <T>      The type of value161   * @param supplier {@link ThrowingSupplier} function that either generates the value, or throws a162   *                 {@link Throwable}163   * @return supplier which is refreshed for each spec's context164   */165  static <T> Supplier<T> let(final ThrowingSupplier<T> supplier) {166    LetHook<T> letHook = new LetHook<>(supplier);167    DeclarationState.instance().addHook(letHook, AppliesTo.ATOMIC_ONLY, Precedence.LOCAL);168    return letHook;169  }170  /**171   * A value that will be calculated fresh at the start of each spec and cannot bleed across specs.172   *173   * <p>174   * Note that {@code eagerLet} is eagerly evaluated: the {@code supplier} is called at the start175   * of the spec, before {@code beforeEach} blocks.176   * </p>177   *178   * @param <T>      The type of value179   * @param supplier {@link ThrowingSupplier} function that either generates the value, or throws a180   *                 {@link Throwable}181   * @return supplier which is refreshed for each spec's context182   */183  static <T> Supplier<T> eagerLet(final ThrowingSupplier<T> supplier) {184    EagerLetHook<T> eagerLetHook = new EagerLetHook<>(supplier);185    DeclarationState.instance().addHook(eagerLetHook, AppliesTo.ATOMIC_ONLY, Precedence.LOCAL);186    return eagerLetHook;187  }188  /**189   * Define a test context. Alias for {@link #describe}.190   *191   * @param context the description of the context192   * @param block   the block to execute193   */194  static void context(final String context, final Block block) {195    describe(context, block);196  }197  /**198   * Define a focused test context. Alias for {@link #fdescribe}....

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}...

EagerLetHook

Using AI Code Generation

1import com.greghaskins.spectrum.Spectrum;2import com.greghaskins.spectrum.Spectrum.*;3import com.greghaskins.spectrum.internal.hooks.EagerLetHook;4public class 1 {5    public static void main(String[] args) {6        Spectrum.describe("EagerLetHook", () -> {7            Spectrum.let("a", () -> 1);8            Spectrum.let("b", () -> 2);9            Spectrum.let("c", () -> 3);10            Spectrum.let("d", () -> 4);11            Spectrum.let("e", () -> 5);12            Spectrum.let("f", () -> 6);13            Spectrum.let("g", () -> 7);14            Spectrum.let("h", () -> 8);15            Spectrum.let("i", () -> 9);16            Spectrum.let("j", () -> 10);17            Spectrum.let("k", () -> 11);18            Spectrum.let("l", () -> 12);19            Spectrum.let("m", () -> 13);20            Spectrum.let("n", () -> 14);21            Spectrum.let("o", () -> 15);22            Spectrum.let("p", () -> 16);23            Spectrum.let("q", () -> 17);24            Spectrum.let("r", () -> 18);25            Spectrum.let("s", () -> 19);26            Spectrum.let("t", () -> 20);27            Spectrum.let("u", () -> 21);28            Spectrum.let("v", () -> 22);29            Spectrum.let("w", () -> 23);30            Spectrum.let("x", () -> 24);31            Spectrum.let("y", () -> 25);32            Spectrum.let("z", () -> 26);33            Spectrum.beforeAll(new EagerLetHook());34            Spectrum.it("adds 1 and 1", () -> {35                Spectrum.let("a", () -> 1);36                Spectrum.let("b", () -> 2);37                Spectrum.let("c", () -> 3);38                Spectrum.let("d", () -> 4);39                Spectrum.let("e", () -> 5);40                Spectrum.let("f", () -> 6);41                Spectrum.let("g", () -> 7);42                Spectrum.let("h", () ->

EagerLetHook

Using AI Code Generation

1package com.greghaskins.spectrum;2import com.greghaskins.spectrum.internal.hooks.EagerLetHook;3public class LetTest {4    public static void main(String[] args) {5        describe("LetTest", () -> {6            let("name", () -> {7                System.out.println("LetTest.name");8                return "LetTest.name";9            });10            it("name", () -> {11                System.out.println("LetTest.name");12            });13        });14    }15}16package com.greghaskins.spectrum;17public class LetTest {18    public static void main(String[] args) {19        describe("LetTest", () -> {20            let("name", () -> {21                System.out.println("LetTest.name");22                return "LetTest.name";23            });24            it("name", () -> {25                System.out.println("LetTest.name");26            });27        });28    }29}30package com.greghaskins.spectrum;31public class LetTest {32    public static void main(String[] args) {33        describe("LetTest", () -> {34            let("name", () -> {35                System.out.println("LetTest.name");36                return "LetTest.name";37            });38            it("name", () -> {39                System.out.println("LetTest.name");40            });41        });42    }43}44package com.greghaskins.spectrum;45public class LetTest {46    public static void main(String[] args) {47        describe("LetTest", () -> {48            let("name", () -> {49                System.out.println("LetTest.name");50                return "LetTest.name";51            });52            it("name", () -> {53                System.out.println("LetTest.name");54            });55        });56    }57}58package com.greghaskins.spectrum;59public class LetTest {60    public static void main(String[] args) {61        describe("LetTest", () -> {62            let("name", () -> {63                System.out.println("LetTest.name");64                return "LetTest.name";65            });66            it("name", () -> {67                System.out.println("LetTest.name");68            });69        });70    }71}72package com.greghaskins.spectrum;73public class LetTest {74    public static void main(String[] args) {

EagerLetHook

Using AI Code Generation

1package com.greghaskins.spectrum;2import com.greghaskins.spectrum.internal.hooks.EagerLetHook;3public class EagerLetHookTest {4    public static void main(String[] args) {5        EagerLetHook<String> hook = new EagerLetHook<String>();6        hook.setVariable("Hello");7        System.out.println(hook.getVariable());8    }9}10public <T> Let<T> Let(Supplier<T> valueSupplier)11Block.Let<String> variable = describe("A test", () -> {12    return Block.Let(() -> "Hello");13}).getLetVariable();14public static <T> Let<T> Let(Supplier<T> valueSupplier)15Block.Let<String> variable = describe("A test", () -> {16    return Block.Let(() -> "Hello");17}).getLetVariable();

EagerLetHook

Using AI Code Generation

1package com.greghaskins.spectrum.internal.hooks;2import org.junit.Test;3import java.util.ArrayList;4import java.util.List;5import static com.greghaskins.spectrum.Spectrum.*;6import static org.junit.Assert.assertEquals;7public class EagerLetHookTest {8    public void test() {9        final List<String> list = new ArrayList<>();10        describe("A suite", () -> {11            final String value = "value";12            let("variable", value);13            it("has a variable", () -> {14                list.add(EagerLetHook.getVariableValue("variable"));15            });16        });17        assertEquals(1, list.size());18        assertEquals("value", list.get(0));19    }20}21package com.greghaskins.spectrum.internal.hooks;22import org.junit.Test;23import java.util.ArrayList;24import java.util.List;25import static com.greghaskins.spectrum.Spectrum.*;26import static org.junit.Assert.assertEquals;27public class EagerLetHookTest {28    public void test() {29        final List<String> list = new ArrayList<>();30        describe("A suite", () -> {31            final String value = "value";32            let("variable", value);33            it("has a variable", () -> {34                list.add(EagerLetHook.getVariableValue("variable"));35            });36        });37        assertEquals(1, list.size());38        assertEquals("value", list.get(0));39    }40}41package com.greghaskins.spectrum.internal.hooks;42import org.junit.Test;43import java.util.ArrayList;44import java.util.List;45import static com.greghaskins.spectrum.Spectrum.*;46import static org.junit.Assert.assertEquals;47public class EagerLetHookTest {48    public void test() {49        final List<String> list = new ArrayList<>();50        describe("A suite", () -> {51            final String value = "value";52            let("variable", value);53            it("

EagerLetHook

Using AI Code Generation

1package com.greghaskins.spectrum;2import com.greghaskins.spectrum.internal.hooks.EagerLetHook;3public class 1 {4    public static void main(String[] args) {5        EagerLetHook eagerLetHook = new EagerLetHook();6        eagerLetHook.run();7        System.out.println("Number of tests run: " + eagerLetHook.getNumberOfTestsRun());8        EagerLetHook eagerLetHook = new EagerLetHook();9        eagerLetHook.run();10        System.out.println("Number of tests skipped: " + eagerLetHook.getNumberOfTestsSkipped());11        EagerLetHook eagerLetHook = new EagerLetHook();12        eagerLetHook.run();13        System.out.println("Number of tests failed: " + eagerLetHook.getNumberOfTestsFailed());14    }15}16package com.greghaskins.spectrum;17import com.greghaskins.spectrum.internal.hooks.EagerLetHook;18public class 2 {19    public static void main(String[] args) {20        EagerLetHook eagerLetHook = new EagerLetHook();21        eagerLetHook.run();22        System.out.println("Number of tests run: " + eagerLetHook.getNumberOfTestsRun());23        EagerLetHook eagerLetHook = new EagerLetHook();24        eagerLetHook.run();25        System.out.println("Number of tests skipped: " + eagerLetHook.getNumberOfTestsSkipped());26        EagerLetHook eagerLetHook = new EagerLetHook();

EagerLetHook

Using AI Code Generation

1package com.greghaskins.spectrum;2import com.greghaskins.spectrum.internal.hooks.EagerLetHook;3import com.greghaskins.spectrum.internal.hooks.Hook;4import java.util.List;5import java.util.function.Consumer;6import java.util.function.Supplier;7import static com.greghaskins.spectrum.Spectrum.describe;8import static com.greghaskins.spectrum.Spectrum.let;9public class Example2 {10    public static void main(String[] args) {11        describe("a test", () -> {12            Supplier<Integer> a = let(() -> 1);13            Supplier<Integer> b = let(() -> 2);14            Supplier<Integer> c = let(() -> 3);15            Hook hook = new EagerLetHook();16            hook.beforeEach();17            List<String> variables = hook.getVariables();18            System.out.println(variables);19        });20    }21}22package com.greghaskins.spectrum;23import com.greghaskins.spectrum.internal.hooks.EagerLetHook;24import com.greghaskins.spectrum.internal.hooks.Hook;25import java.util.List;26import java.util.function.Consumer;27import java.util.function.Supplier;28import static com.greghaskins.spectrum.Spectrum.describe;29import static com.greghaskins.spectrum.Spectrum.let;30public class Example2 {31    public static void main(String[] args) {32        describe("a test", () -> {33            Supplier<Integer> a = let(() -> 1);34            Supplier<Integer> b = let(() -> 2);35            Supplier<Integer> c = let(() -> 3);36            Hook hook = new EagerLetHook();37            hook.beforeEach();38            List<String> variables = hook.getVariables();39            System.out.println(variables);40        });41    }42}

EagerLetHook

Using AI Code Generation

1EagerLetHook hook = new EagerLetHook();2hook.applyTo(this);3System.out.println(hook.get("letVariableName"));4EagerLetHook hook = new EagerLetHook();5hook.applyTo(this);6System.out.println(hook.get("letVariableName"));7EagerLetHook hook = new EagerLetHook();8hook.applyTo(this);9System.out.println(hook.get("letVariableName"));10EagerLetHook hook = new EagerLetHook();11hook.applyTo(this);12System.out.println(hook.get("letVariableName"));13EagerLetHook hook = new EagerLetHook();14hook.applyTo(this);15System.out.println(hook.get("letVariableName"));16EagerLetHook hook = new EagerLetHook();17hook.applyTo(this);18System.out.println(hook.get("letVariableName"));

EagerLetHook

Using AI Code Generation

1package com.greghaskins.spectrum;2import com.greghaskins.spectrum.internal.hooks.EagerLetHook;3import com.greghaskins.spectrum.internal.hooks.Let;4import java.util.function.Supplier;5public class Example1 {6    public static void main(String[] args) {7        Let<Integer> a = new Let<>("a", 1);8        Let<Integer> b = new Let<>("b", 2);9        EagerLetHook<Integer> hook = new EagerLetHook<>(a);10        Describe.describe("test", () -> {11            hook.hook();12            It.it("should print the sum of the let variables", () -> {13                System.out.println(a.get() + b.get());14            });15        }).run();16    }17}18package com.greghaskins.spectrum;19import com.greghaskins.spectrum.internal.hooks.EagerLetHook;20import com.greghaskins.spectrum

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