Groups execution order is wrong in Kotlin Spek

Question

Here is my test:

object MySpek : Spek({
    val myMock1: MyMock1 = mock()
    val myMock2: MyMock2 = mock()
    val handler = StartModeHandler(myMock1, myMock2)

    val session = mock<Session> {
        on { user }.doReturn(User.builder().withUserId("userId").build())
    }
    describe("item exists for user") {
        beforeGroup {
            reset(digitalPointDao, trackDao)
        }
    whenever(myMock1.loadItem(session.user.userId)).thenReturn(Optional.of(MyItem()))
        whenever(myMock2.loadSomething()).thenReturn(ArrayList())
        context("method onLaunch was called") {
            val response = handler.onLaunch(session)
            it("should return the response for existing user") {
                //some asserts here
            }
            it("should save the item") {
                //some mock verifies here
            }
        }
    }
})

According to Spek documentation, I expect the flow to be the following:

initialize everything before describe
call beforeGroup
initalize describe body e.g. my whenever calls for mocks
run context
run each it method

But i'm getting the following flow:

initialize everything before describe
run my describe body e.g. my whenever calls for mocks
run context
run beforeGroup
run each it method

Am I miss something and doing something wrong here?

score 0 · Accepted Answer · answered Sep 19 '17 at 07:48

As mentioned in the Spek documentation group scopes (given, describe, context) will eagerly execute any code within. Any test state initialization should be done within fixtures (beforeEachTest, beforeGroup, etc ...). You can also use memoized to create a dependency tied to Spek's lifecycle.

object MySpek: Spek({
    val myMock1 by memoized { mock<myMock1>() }
    val myMock2 by memoized { mock<myMock2>() }

    val handler by memoized { StartModeHandler(myMock1, myMock2) }

    val session by memoized { 
        mock<Session> {
            on { user }.doReturn(User.builder().withUserId("userId").build())
        }
    }

    describe("item exists for user") {
        beforeEachTest {
            reset(digitalPointDao, trackDao)
            whenever(myMock1.loadItem(session.user.userId)).thenReturn(Optional.of(MyItem()))
            whenever(myMock2.loadSomething()).thenReturn(ArrayList())
        }

        // use on instead of context
        on("method onLaunch was called") {
            val response = handler.onLaunch(session)
            it("should return the response for existing user") {
                //some asserts here
            }
            it("should save the item") {
                //some mock verifies here
            }
        }

    }
})

Groups execution order is wrong in Kotlin Spek

1 Answers1