测试的命令，3和2不一样了，要找找。。

User.groovy

package com.grailsinactionclass User {    String loginId    String password    String homepage    Date dateCreated    static constraints = {      loginId size: 3..20, unique: true, nullable: false            password size: 6..8, nullable:false      homepage url: true, nullable: true    }}

UserIntegrationSpec.groovy

package com.grailsinactionimport grails.test.mixin.integration.Integrationimport grails.transaction.*import spock.lang.*@Integration@Rollbackclass UserIntegrationSpec extends Specification {    def setup() {    }    def cleanup() {    }    def "Saving our first user to the database"() {            given: "A brand new user"            def joe = new User(loginId: 'Joe', password: 'secret',                                homepage: 'http://www.grailsinaction.com')            when: "the user is saved"            joe.save()                        then: "it saved successfully and can be found in the database"            joe.errors.errorCount == 0            joe.id != null            User.get(joe.id).loginId == joe.loginId        }                def "Updating a saved user changes its properties"() {            given: "An existing user"            def existingUser = new User(loginId: 'Joe', password: 'secret',                                homepage: 'http://www.grailsinaction.com')            existingUser.save(failOnError: true)            when: "A property is changed"            def foundUser = User.get(existingUser.id)            foundUser.password = 'sesame'            foundUser.save(failOnError: true)                        then: "The change is reflected in the database"            User.get(existingUser.id).password == 'sesame'        }                def "Deleting an existing user removes it from the database"() {            given: "An existing user"            def user = new User(loginId: 'Joe', password: 'secret',                                homepage: 'http://www.grailsinaction.com')            user.save(failOnError: true)                        when: "The user is deleted"            def foundUser = User.get(user.id)            foundUser.delete(flush: true)                        then: "The user is removed from the database"            !User.exists(foundUser.id)        }                def "Saving a user with invalid properties causes an error"() {            given: "A user which fails several field validations"            def user = new User(loginId: 'Joe', password: 'tiny',                                    homepage: 'not-a-url')            when: "The user is validated"            user.validate()                        then:            user.hasErrors()                        "size.toosmall" == user.errors.getFieldError("password").code            "tiny" == user.errors.getFieldError("password").rejectedValue            "url.invalid" == user.errors.getFieldError("homepage").code            "not-a-url" == user.errors.getFieldError("homepage").rejectedValue            !user.errors.getFieldError("loginId")        }                def "Recovering from a failed save by fixing invalid properties"() {            given: "A user that has invalid properties"            def chuck = new User(loginId: 'chuck', password: 'tiny',                                    homepage: 'not-a-url')            assert chuck.save() == null            assert chuck.hasErrors()                        when: "We fix the invalid properties"            chuck.password = "fistfist"            chuck.homepage = "http://www.chucknorrisfacts.com"            chuck.validate()                        then: "The user saves and validates fine"            !chuck.hasErrors()            chuck.save()        }        }