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How to mock Spock domain closure

I would like to test the Grails controller, which sends emails using the Grails Email plugin. I don’t understand how to mock with closure sendMailso that interactions work. Here is my latest version of the test code:

def 'controller should send a multipart email'() {
    given: 'a mocked mailService'
        controller.mailService = Mock(grails.plugin.mail.MailService)
        controller.mailService.sendMail(*_) >> Mock(org.springframework.mail.MailMessage)
    when:
        controller.sendNow()
    then:
        1* _.multipart(true)
}

The controller code looks something like you expected, for example:

def mailService
def sendNow() {
    mailService.sendMail {
        multipart true
        to 'example@example.org'
        from 'me@here.com'
        subject 'a subject'
        body 'a body'
    }
}

If I run this test, I get 0 calls of my interaction multipart, not 1. The second line of the block given:seems suspicious to me, but if I try to make fun of my test failures Closureinstead org.springframework.mail.MailMessage. I should also mention that the controller itself works as expected (it could not wait until I can parse the unit tests first).

Edited

, , , ; , multipart DSL, , sendMail ( , ). , sendMail, , .

+5
4

greenMail :

greenmail:

import com.icegreen.greenmail.util.*

class GreenmailTests extends GroovyTestCase {
    def mailService
    def greenMail    

    void testSendMail() {
        Map mail = [message:'hello world', from:'from@piragua.com', to:'to@piragua.com', subject:'subject']        

        mailService.sendMail {
            to mail.to
            from mail.from
            subject mail.subject
            body mail.message
        }        

        assertEquals(1, greenMail.getReceivedMessages().length)        
        def message = greenMail.getReceivedMessages()[0]        
        assertEquals(mail.message, GreenMailUtil.getBody(message))
        assertEquals(mail.from, GreenMailUtil.getAddressList(message.from))
        assertEquals(mail.subject, message.subject)
    }    

    void tearDown() {
        greenMail.deleteAllMessages()
    }
}

Spock, junit spock.

: http://grails.org/plugin/greenmail

Udpate, , sendMail

Gregor. , sendMail, , , . . . . , junit. , . , .

class MailVerifier {
    void multiPart(boolean v){
        //...
    }

    void to(String address){
        //...
    }

    boolean isVerified() {
        //check internal state obtained by the appropriate invocation of the methods
    }
}

def sendMail(Closure mailDefintion) {
    def evaluator = createMailVerifier()
    mailDefinition.delegate = evaluator

    mailDefinition()

    assert evaluator.verified
}
+3

:

def messageBuilder
def bodyParams
def setup(){
    def mockMailService = new MockFor(MailService)
    mockMailService.ignore.sendMail{ callable ->
        messageBuilder = new MailMessageBuilder(null, new ConfigObject())
        messageBuilder.metaClass.body = { Map params ->
            bodyParams = params
        }
        callable.delegate = messageBuilder
        callable.resolveStrategy = Closure.DELEGATE_FIRST
        callable.call()
    }
    service.mailService = mockMailService.proxyInstance()
}

:

def "sendEmailReceipt_passesCorrectParams"(){
    when:
        def receiptItems = [] << [item: "item1", price: 100]
        service.sendEmailReceipt(receiptItems, "some@email.com")

    then:
        messageBuilder.message.to[0] == "some@email.com"
        messageBuilder.message.subject == "My subject"
        bodyParams.view == "/mailtemplates/emailReceipt"
        bodyParams.model.receiptItems == data
}
+3

Take a look at the plugin tests here: plugin integration test and here: unit test plugin . In my opinion, it will be difficult for you to mock all the dependencies of MailService - factory and the builder who builds your mail message. I would finish testing only when my sendNow controller is called.

Edit

I found this answer . Accordingly, you can try:

def 'controller should send a multipart email'() {
    given: 'a mocked mailService'
        def mockMailService = new Object()
        def mockMessageBuilder = Mock(MessageBuilder)
        mockMailService.metaClass.sendMail = { callable ->
            callable.delegate = mockMessageBuilder
            callable.resolveStrategy = Closure.DELEGATE_FIRST
            callable.call()
        }
        controller.mailService = mockMailService
    when:
        controller.sendNow()
    then:
        1* mockMessageBuilder.multipart(true)

}

+1
source 
def mailService = Mock(MailService)
mockMailService.metaClass.sendMail = { ... your logic ... }
controller.mailService = mailService
+1
source

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