Fixtures插件在加载时抛出BeanCreationException

Question

我试图让Fixtures插件适用于我的单元测试，但每次我加载数据时，我总是得到BeanCreationException。

以下是我的规范中的setup方法的样子：

def fixtureLoader = new FixtureLoader(grailsApplication)

def setup() {
    fixtureLoader.load {
        person(Person, firstName: 'Juan', lastName: 'dela Cruz')
    }
}

每次我进行任何测试我都会得到：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'person': Initialization of bean failed; nested exception is java.lang.NullPointerException: Cannot invoke method getDomainClass() on null object
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:547)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:703)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
    at org.codehaus.groovy.grails.commons.spring.DefaultRuntimeSpringConfiguration.getApplicationContext(DefaultRuntimeSpringConfiguration.java:156)
    at grails.spring.BeanBuilder.createApplicationContext(BeanBuilder.java:593)
    at grails.plugin.fixtures.builder.FixtureBuilder.createApplicationContext(FixtureBuilder.groovy:140)
    at grails.plugin.fixtures.Fixture.load(Fixture.groovy:43)
    at grails.plugin.fixtures.FixtureLoader.load(FixtureLoader.groovy:50)
    at demo.SampleSpec.setup(SampleSpec.groovy:16)
Caused by: java.lang.NullPointerException: Cannot invoke method getDomainClass() on null object
    at grails.plugin.fixtures.builder.processor.FixtureBeanPostProcessor.getDomainClass(FixtureBeanPostProcessor.groovy:136)
    at grails.plugin.fixtures.builder.processor.FixtureBeanPostProcessor.postProcessAfterInitialization(FixtureBeanPostProcessor.groovy:40)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:421)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1558)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
    ... 14 more