/** * Creates a new flow in the current use case. * * @param flowName * the name of the flow to be created. * @return the newly created flow part * @throws ElementAlreadyInModel * if a flow with the specified name already exists in the use case */ public FlowPart flow(String flowName) { Objects.requireNonNull(flowName); FlowPart useCaseFlowPart = stepPart.getUseCasePart().flow(flowName); return useCaseFlowPart; }
@Test public void throwsExceptionIfFlowIsCreatedTwice() { thrown.expect(ElementAlreadyInModel.class); thrown.expectMessage(ALTERNATIVE_FLOW); modelBuilder .useCase(USE_CASE) .flow(ALTERNATIVE_FLOW) .step(SYSTEM_DISPLAYS_TEXT).system(displaysConstantText()) .flow(ALTERNATIVE_FLOW); }
public Model buildWith(ModelBuilder modelBuilder) { normalUser = modelBuilder.actor("Normal User"); anonymousUser = modelBuilder.actor("Anonymous User"); Model model = modelBuilder.useCase("Get greeted") .basicFlow() .step("S1").as(normalUser).system(this::promptsUserToEnterFirstName) .step("S2").as(normalUser).user(ENTERS_FIRST_NAME).system(this::savesFirstName) .step("S3").as(normalUser, anonymousUser).system(this::promptsUserToEnterAge) .step("S4").as(normalUser, anonymousUser).user(ENTERS_AGE).system(this::savesAge) .step("S5").as(normalUser).system(this::greetsUserWithFirstName) .step("S6").as(normalUser, anonymousUser).system(this::greetsUserWithAge) .step("S7").as(normalUser, anonymousUser).system(this::stops) .flow("Handle out-of-bounds age").insteadOf("S5").condition(this::ageIsOutOfBounds) .step("S5a_1").system(this::informsUserAboutOutOfBoundsAge) .step("S5a_2").continuesAt("S3") .flow("Handle non-numerical age").insteadOf("S5") .step("S5b_1").on(NON_NUMERICAL_AGE).system(this::informsUserAboutNonNumericalAge) .step("S5b_2").continuesAt("S3") .flow("Anonymous greeted with age only").insteadOf("S5").condition(this::ageIsOk) .step("S5c_1").as(anonymousUser).continuesAt("S6") .flow("Anonymous does not enter name").insteadOf("S1") .step("S1a_1").as(anonymousUser).continuesAt("S3") .build(); return model; }
public Model buildWith(ModelBuilder modelBuilder) { Model model = modelBuilder.useCase("Get greeted") .basicFlow() .step("S1").system(this::promptsUserToEnterFirstName) .step("S2").user(ENTERS_FIRST_NAME).system(this::savesFirstName) .step("S3").system(this::promptsUserToEnterAge) .step("S4").user(ENTERS_AGE).system(this::savesAge) .step("S5").system(this::greetsUserWithFirstNameAndAge) .step("S6").system(this::stops) .flow("Handle out-of-bounds age").insteadOf("S5").condition(this::ageIsOutOfBounds) .step("S5a_1").system(this::informsUserAboutOutOfBoundsAge) .step("S5a_2").continuesAt("S3") .flow("Handle non-numerical age").insteadOf("S5") .step("S5b_1").on(NON_NUMERICAL_AGE).system(this::informsUserAboutNonNumericalAge) .step("S5b_2").continuesAt("S3") .build(); return model; }
.step("S4a_1").system(blowsUp()) .step("S4a_2").continuesAt("S1") .flow("Alternative flow B").after("S3") .step("S4b_1").continuesAfter("S2") .flow("Alternative flow C").condition(thereIsNoAlternative()) .step("S5a").continuesWithoutAlternativeAt("S4") .flow("Alternative flow D").insteadOf("S4").condition(thereIsNoAlternative()) .step("S4c_1").includesUseCase("Included use case") .step("S4c_2").continuesAt("S1") .flow("EX").anytime() .step("EX1").on(Exception.class).system(logsException()) .build();
@Test public void continuesAfterCalledFromMultipleMutuallyExclusiveAlternativeFlows() { Model model = modelBuilder .useCase(USE_CASE) .basicFlow() .step(CUSTOMER_ENTERS_TEXT).user(EntersText.class).system(displaysEnteredText()) .step(CUSTOMER_ENTERS_TEXT_AGAIN).user(EntersText.class).system(displaysEnteredText()) .step(CUSTOMER_ENTERS_NUMBER).user(EntersNumber.class).system(displaysEnteredNumber()) .flow(ALTERNATIVE_FLOW).insteadOf(CUSTOMER_ENTERS_TEXT_AGAIN).condition(this::textIsAvailable) .step(CUSTOMER_ENTERS_ALTERNATIVE_TEXT).user(EntersText.class).system(displaysEnteredText()) .step(CONTINUE).continuesAfter(CUSTOMER_ENTERS_TEXT_AGAIN) .flow(ALTERNATIVE_FLOW_2).insteadOf(CUSTOMER_ENTERS_TEXT_AGAIN).condition(this::textIsNotAvailable) .step("Customer enters alternative number").user(EntersNumber.class).system(displaysEnteredNumber()) .step(CONTINUE_2).continuesAfter(CUSTOMER_ENTERS_TEXT_AGAIN) .build(); modelRunner.run(model).reactTo(entersText(), entersAlternativeText(), entersText(), entersNumber()); assertRecordedStepNames(CUSTOMER_ENTERS_TEXT, CUSTOMER_ENTERS_ALTERNATIVE_TEXT, CONTINUE, CUSTOMER_ENTERS_NUMBER); }
@Test public void continuesAtCalledFromMultipleMutuallyExclusiveAlternativeFlows() { Model model = modelBuilder .useCase(USE_CASE) .basicFlow() .step(CUSTOMER_ENTERS_TEXT).user(EntersText.class).system(displaysEnteredText()) .step(CUSTOMER_ENTERS_TEXT_AGAIN).user(EntersText.class).system(displaysEnteredText()) .step(CUSTOMER_ENTERS_NUMBER).user(EntersNumber.class).system(displaysEnteredNumber()) .flow(ALTERNATIVE_FLOW).insteadOf(CUSTOMER_ENTERS_TEXT_AGAIN).condition(this::textIsAvailable) .step(CUSTOMER_ENTERS_ALTERNATIVE_TEXT).user(EntersText.class).system(displaysEnteredText()) .step(CONTINUE).continuesAt(CUSTOMER_ENTERS_NUMBER) .flow(ALTERNATIVE_FLOW_2).insteadOf(CUSTOMER_ENTERS_TEXT_AGAIN).condition(this::textIsNotAvailable) .step("Customer enters alternative number").user(EntersNumber.class).system(displaysEnteredNumber()) .step(CONTINUE_2).continuesAt(CUSTOMER_ENTERS_NUMBER) .build(); modelRunner.run(model).reactTo(entersText(), entersAlternativeText(), entersText(), entersNumber()); assertRecordedStepNames(CUSTOMER_ENTERS_TEXT, CUSTOMER_ENTERS_ALTERNATIVE_TEXT, CONTINUE, CUSTOMER_ENTERS_NUMBER); }
@Test public void continuesWithoutAlternativeAtCalledFromMultipleMutuallyExclusiveAlternativeFlows() { Model model = modelBuilder .useCase(USE_CASE) .basicFlow() .step(CUSTOMER_ENTERS_TEXT).user(EntersText.class).system(displaysEnteredText()) .step(CUSTOMER_ENTERS_TEXT_AGAIN).user(EntersText.class).system(displaysEnteredText()) .step(CUSTOMER_ENTERS_NUMBER).user(EntersNumber.class).system(displaysEnteredNumber()) .flow(ALTERNATIVE_FLOW).insteadOf(CUSTOMER_ENTERS_TEXT_AGAIN).condition(this::textIsAvailable) .step(CUSTOMER_ENTERS_ALTERNATIVE_TEXT).user(EntersText.class).system(displaysEnteredText()) .step(CONTINUE).continuesWithoutAlternativeAt(CUSTOMER_ENTERS_TEXT_AGAIN) .flow(ALTERNATIVE_FLOW_2).insteadOf(CUSTOMER_ENTERS_TEXT_AGAIN).condition(this::textIsNotAvailable) .step(CUSTOMER_ENTERS_NUMBER_AGAIN).user(EntersNumber.class).system(displaysEnteredNumber()) .step(CONTINUE_2).continuesWithoutAlternativeAt(CUSTOMER_ENTERS_TEXT_AGAIN) .build(); modelRunner.run(model).reactTo(entersText(), entersAlternativeText(), entersText(), entersNumber()); assertRecordedStepNames(CUSTOMER_ENTERS_TEXT, CUSTOMER_ENTERS_ALTERNATIVE_TEXT, CONTINUE, CUSTOMER_ENTERS_TEXT_AGAIN, CUSTOMER_ENTERS_NUMBER); } }