無法為webFlow 2.0.0運行Grails集成測試

Question

我正在使用Grails 2.0.3和webFlow 2.0.0。

我的控制器中有一個WebFlow定義，可以正常工作，但是我仍然想添加集成測試以方便將來的維護。

每當控制器嘗試向流范圍添加一些值時，我的測試中都會遇到以下異常：

ERROR org.codehaus.groovy.grails.webflow.engine.builder.ClosureInvokingAction  - Exception occured invoking flow action: No such property: poInfo for class: org.springframework.webflow.core.collection.LocalAttributeMap 
groovy.lang.MissingPropertyException: No such property: poInfo for class: org.springframework.webflow.core.collection.LocalAttributeMap 
        at com.psswm.inboundcal.ReceivingEventController$_closure1_closure6_closure12.doCall(ReceivingEventController.groovy:83) 
        at grails.test.WebFlowTestCase.signalEvent(WebFlowTestCase.groovy:143) 
        at com.psswm.inboundcal.ReceivingEventCreationFlowTests.testAddPoInfoMissingPiecesPallets(ReceivingEventCreationFlowTests.groovy:32) 
        at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45) 
        at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) 
        at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42) 
        at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20) 
        at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) 
        at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30) 
        at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263) 
        at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68) 
        at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47) 
        at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231) 
        at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60) 
        at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229) 
        at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50) 
        at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222) 
        at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) 
        at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30) 
        at org.junit.runners.ParentRunner.run(ParentRunner.java:300) 
        at org.junit.runners.Suite.runChild(Suite.java:128) 
        at org.junit.runners.Suite.runChild(Suite.java:24) 
        at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231) 
        at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60) 
        at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229) 
        at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50) 
        at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222) 
        at org.junit.runners.ParentRunner.run(ParentRunner.java:300) 
        at _GrailsTest_groovy$_run_closure4.doCall(_GrailsTest_groovy:290) 
        at _GrailsTest_groovy$_run_closure2.doCall(_GrailsTest_groovy:248) 
        at _GrailsTest_groovy$_run_closure1_closure21.doCall(_GrailsTest_groovy:195) 
        at _GrailsTest_groovy$_run_closure1.doCall(_GrailsTest_groovy:184) 
        at TestApp$_run_closure1.doCall(TestApp.groovy:82) 
| Failure:  testAddPoInfoMissingPiecesPallets(com.psswm.inboundcal.ReceivingEventCreationFlowTests) 
|  org.springframework.webflow.execution.ActionExecutionException: Exception thrown executing org.codehaus.groovy.grails.webflow.engine.builder.ClosureInvokingAction@3beff9ad in state 'addPO' of flow 'create' -- action execution attributes were 'map[[empty]]' 
        at grails.test.WebFlowTestCase.signalEvent(WebFlowTestCase.groovy:143) 
        at com.psswm.inboundcal.ReceivingEventCreationFlowTests.testAddPoInfoMissingPiecesPallets(ReceivingEventCreationFlowTests.groovy:32) 
Caused by: groovy.lang.MissingPropertyException: No such property: poInfo for class: org.springframework.webflow.core.collection.LocalAttributeMap 
        at com.psswm.inboundcal.ReceivingEventController$_closure1_closure6_closure12.doCall(ReceivingEventController.groovy:83) 
        ... 2 more

---

這是我要測試的My WebFlow代碼的一部分：

def createFlow = { 
    initialize { 
        action { 
            if (params.eventId) { 
                flow.receivingEventId = params.eventId as int 
                ReceivingEvent existingReceivingEvent = ReceivingEvent.get(flow.receivingEventId) 
                flow.receivingEvent = new ReceivingEvent(branch:existingReceivingEvent.branch) 
            } 
        } 
        on ("success").to "addPO" 
    } 

    addPO { 
        on("add") { 
            log.debug("addPO") 
            // Initialize flow objects 
            flow.poInfo = new PoInfo(params) 
            if (flow.receivingEvent == null) { 
                flow.receivingEvent = new ReceivingEvent() 
            } 

            // validate and populate poInfo object 
            boolean objectIsValid = flow.poInfo.validateAndPopulate() 
            if(!objectIsValid) { 
                if(!flow.poInfo.hasErrors()) { 
                    flash.warning = 'poInfo.poNumber.unknown' 
                } 
                return error() 
            } 
            // add poInfo object to receivingEvent for additional processing/validation 
            String errorMessage = flow.receivingEvent.addPoInfo(flow.poInfo) 

            if(null != errorMessage) { 
                flash.warning = errorMessage 
                return error() 
            } else { 
                flow.poInfo = null 
            } 
        }.to("addPO") 

........

---

這是我的集成測試：

class ReceivingEventCreationFlowTests extends WebFlowTestCase{ 

ReceivingEventController receivingEventController = new ReceivingEventController() 

void testInitializeFlow() { 
    startFlow() 
    assertCurrentStateEquals "addPO" 
} 

void testAddPoInfoMissingPiecesPallets() { 
    println("Hola mundo") 
    startFlow() 
    assertCurrentStateEquals "addPO" 

    receivingEventController.params.poNumber = '63055024UI1063' 
    receivingEventController.params.pro = '3' 
    println "flow scope: " + getFlowScope().getClass() 
    println ("Hola again") 
    signalEvent('add') 
    assertTrue getFlowScope().poInfo.hasErrors() 
    assertCurrentStateEquals "addPO" 
} 

@Override 
public Object getFlow() { 
    receivingEventController.createFlow 
} 

String getFlowId() { "create" } 
} 

---

有人對我在這里缺少什么有任何想法嗎？ 還是webFlow 2.0.0和grails 2.0.3有任何已知的集成測試問題？

我正在遵循《 Grails in Action》（第9.4章：測試WebFlows）一書中的指導原則，但是我仍然遇到上述錯誤。

提前致謝，

豪爾赫·巴斯克斯（Jorge Vasquez）

Answer 1

《 Grails in Action》是一本非常好的書，但有些古老。 我建議您使用單元測試代替集成測試。 文檔幾乎不存在，但是您可以在grails源代碼中看到一個很好的示例：

WebFlow單元測試代碼

您可以看到帶有輸入，輸出，子流等的Web流。（輸入和輸出是GIA書中較新的）

在示例Roeche使用對話范圍的情況下，可以改為使用流范圍。