KaneAI - World’s First E2E Software Testing Agent.Signup for Private Beta Join TestMu Conference

How to use getSuiteThatUsesEagerLetValueOutsideSpec method of specs.EagerLetSpecs class

Best Spectrum code snippet using specs.EagerLetSpecs.getSuiteThatUsesEagerLetValueOutsideSpec

Source:EagerLetSpecs.java

...121        });122      });123      describe("when trying to use a value outside a spec", () -> {124        final Supplier<Result> result =125            eagerLet(() -> SpectrumHelper.run(getSuiteThatUsesEagerLetValueOutsideSpec()));126        it("causes a failure", () -> {127          assertThat(result.get().getFailureCount(), is(1));128        });129        it("describes the error", () -> {130          final Failure failure = result.get().getFailures().get(0);131          assertThat(failure.getException(), instanceOf(IllegalStateException.class));132          assertThat(failure.getMessage(),133              is("Cannot use the value from eagerLet() in a suite declaration. "134                  + "It may only be used in the context of a running spec."));135        });136      });137      describe("when errors happen in the supplier", () -> {138        describe("checked exceptions", () -> {139          it("should be wrapped in RuntimeException", () -> {140            final Result result = SpectrumHelper.run(getSuiteWithEagerLetThatThrowsCheckedException());141            assertThat(result.getFailures(), hasSize(1));142            final Failure failure = result.getFailures().get(0);143            assertThat(failure.getException(), instanceOf(RuntimeException.class));144            assertThat(failure.getException().getCause(), instanceOf(DummyException.class));145          });146        });147        describe("runtime exceptions", () -> {148          it("should be re-thrown as-is", () -> {149            final Result result = SpectrumHelper.run(getSuiteWithEagerLetThatThrowsRuntimeException());150            assertThat(result.getFailures(), hasSize(1));151            final Failure failure = result.getFailures().get(0);152            assertThat(failure.getException(), instanceOf(DummyRuntimeException.class));153            assertThat(failure.getException().getCause(), is(nullValue()));154          });155        });156        describe("errors", () -> {157          it("should be re-thrown as-is", () -> {158            final Result result = SpectrumHelper.run(getSuiteWithEagerLetThatThrowsError());159            assertThat(result.getFailures(), hasSize(1));160            final Failure failure = result.getFailures().get(0);161            assertThat(failure.getException(), instanceOf(DummyError.class));162            assertThat(failure.getException().getCause(), is(nullValue()));163          });164        });165        describe("custom throwables", () -> {166          it("should be wrapped in RuntimeException", () -> {167            final Result result = SpectrumHelper.run(getSuiteWithEagerLetThatThrowsCustomThrowable());168            assertThat(result.getFailures(), hasSize(1));169            final Failure failure = result.getFailures().get(0);170            assertThat(failure.getException(), instanceOf(RuntimeException.class));171            assertThat(failure.getException().getCause(), instanceOf(DummyThrowable.class));172          });173        });174        describe("state of eager let between specs", () -> {175          it("should not be preserved when a spec has an exception", () -> {176            final Result result = SpectrumHelper.run(getSuiteWithEagerLetAndSpecThatThrowsError());177            assertThat(result.getFailures(), hasSize(1));178            final Failure failure = result.getFailures().get(0);179            assertThat(failure.getException(), instanceOf(RuntimeException.class));180            assertThat(failure.getException().getMessage(), is("Bong!"));181          });182          it("should not be preserved when after has an exception", () -> {183            final Result result = SpectrumHelper.run(getSuiteWithEagerLetAndAfterThatThrowsError());184            assertThat(result.getFailures(), hasSize(2));185            assertThat(result.getFailures().get(0).getMessage(), is("Bong!"));186            assertThat(result.getFailures().get(1).getMessage(), is("Bong!"));187          });188        });189      });190      describe("eager let across multiple threads", () -> {191        final Supplier<List<String>> listSupplier = eagerLet(ArrayList::new);192        it("can share the object with worker thread", () -> {193          // when the supplier's object has something added to it194          listSupplier.get().add("Hello world");195          // used as a box for the integer196          AtomicInteger atomicInteger = new AtomicInteger();197          // when we access the object within a worker thread198          Thread thread = new Thread(() -> atomicInteger.set(listSupplier.get().size()));199          thread.start();200          thread.join();201          // then the worker thread saw the same object as the outer thread202          // then the worker thread saw the same object as the outer thread203          assertThat(atomicInteger.get(), is(1));204        });205      });206    });207  }208  private static Class<?> getSuiteThatUsesEagerLetValueOutsideSpec() {209    class Suite {210      {211        describe("a thing", () -> {212          final Supplier<Integer> value = eagerLet(() -> 1);213          value.get();214          it("does stuff", () -> {215          });216          it("does more stuff", () -> {217          });218        });219      }220    }221    return Suite.class;222  }...

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.