Grails test-app Error creating bean with name 'grailsDatastore' - grails

Question

I am attempting to create tests for domain objects. The test is simple, see below. However it is throwing an error
Error creating bean with name 'grailsDatastore'
class AccountSpec extends Specification implements DataTest {
void setupSpec(){
mockDomain Account
}
void "test basic persistence mocking"() {
setup:
def account = new Account(name: 'Robert Fripp', username: "robert", password: "robert", email: "robert#mail.com").save(flush:true)
expect:
Account.count() == 1
}
}

Answer 1

You have not provided enough information to know for sure what is wrong with your project.
See the project at https://github.com/jeffbrown/mcroteauaccount. That contains a test that does what you are trying to do:
https://github.com/jeffbrown/mcroteauaccount/blob/2110545083b3b41dca61eb77f1e4d5dfccc8508a/src/test/groovy/mcroteauaccount/AccountSpec.groovy
package mcroteauaccount
import grails.testing.gorm.DataTest
import spock.lang.Specification
class AccountSpec extends Specification implements DataTest {
void setupSpec() {
mockDomain Account
}
void "test basic persistence mocking"() {
setup:
def account = new Account(name: 'Robert Fripp', username: "robert", password: "robert", email: "robert#mail.com").save(flush: true)
expect:
Account.count() == 1
}
}
That test compiles, runs, and passes. If your question is how do you write a test which saves an instance and then verifies that the instance is included in what is returned from Account.count(), the code above demonstrates how to do that.