How to define a custom argument matcher with mockito in spec2?

Question

I want to verify if the business logic passes the expected user object to dao, but I can't figure how to write an custom argument matcher for it.

"user" should {
    "be saved" in {
        val dao = new UserDao()
        dao.save(any[User]) returns mock[User]

        runMyBusinessLogic();

        val expectedUser = new User("Freewind", 123.23234)
        there was one(dao).save(mymatcher(expectedUser));
    }
 }

The User class:

case class User(name:String, random: Double)

Which contains a double field, that I need to do some special comparison for it.

The mymatcher is the matcher I want to define:

def mymatcher(expected: User) = ??? {
    // compare `name` and `random`
}

But I don't know how to do it in spec2, and can't find any useful documents. Any helps?

score 4 · Answer 1 · answered Apr 01 '14 at 08:15

4

I use beLike matcher. Like this:

one(daoMock).insert { beLike[MyEntity] { case t:Entity => {
  t.summary mustEqual "Summary"
  t.description mustEqual "Description"
}}}

Inside beLike matcher you could use ordinary value matchers.

answered Apr 01 '14 at 08:15

Mike G.

700
5
22

What are the required imports for the `beLike` matcher? – Zoltán Jun 28 '16 at 09:09
@Zoltán For the time I asked it was in trait "Specification" inherited from one of the "*Matchers" trait. (specs2 2.3.12) – Mike G. Jun 28 '16 at 13:05

score 2 · Answer 2 · answered Oct 22 '19 at 08:28

2

For mockito matching I used Matchers.argThat

import org.mockito.Matchers
import org.mockito.Mockito.verify

verify(service).methodCall(Matchers.argThat({
  case CaseClass("const", arg2) =>
    arg2 == expected
  case _ => false
}))

answered Oct 22 '19 at 08:28

Andrey

810
1
9
20

How to define a custom argument matcher with mockito in spec2?

2 Answers2

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