Can I use `capture ` as a parameter for extension functions kotlinlang #mockk

Channels

100daysofkotlin

100daysofkotlin-2021

algolialibraries

android-architecture

android-databinding

androidgithubprojects

androidx-xprocessing

arrow-contributors

beepiz-libraries

cincinnati-user-group

codemash-precompiler

codingconventions

competitive-programming

competitivecoding

compose-android

compose-desktop

compose-ui-showcase

connect-audit-events

cscenter-course-2016

domain-driven-design

effective-kotlin

effectivekotlin

embedded-kotlin

event21-community-content

fb-internal-demo

fluid-libraries

framework-elide

getting-started

github-workflows-kt

graviton-browser

image-processing

intellij-plugins

intellij-tricks

introduce-yourself

java-to-kotlin-refactoring

jhipster-kotlin

jvm-ir-backend-feedback

k2-early-adopters

kotest-contributors

kotlin-by-example

kotlin-data-storage

kotlin-foundation

kotlin-in-action

kotlin-multiplatform-contest

kotlin-pakistan

kotlinforbeginners

kotlingforbeginners

kotlinprogrammers

kotlintest-devs

kotlinultimatechallenge

kotlinx-datetime

lambdaworld_cadiz

language-evolution

language-proposals

leedskotlinusergroup

library-development

machinelearningbawas

myndocs-oauth2-server

navigation-architecture-component

ohio-kotlin-users

pattern-matching

pocketgitclient

practical-functional-programming

prozis-android-backup

python-contributors

realworldkotlin

refactoring-to-kotlin

refreshversions

russian-kotlinasfirst

skia-wasm-interop-temp

sofl-user-group

spring-security

squarelibraries

stayhungrystayfoolish

strife-discord-lib

swagger-gradle-codegen

swiss-user-group

tricity-kotlin-user-group

Title

m

Mikhail

07/15/2022, 7:37 PM

Can I use

capture(...)

as a parameter for extension functions? e.g.

val slot = slot<String>()

capture(slot).snakeCase()

I got this:

kotlin.UninitializedPropertyAccessException: lateinit property captured has not been initialized
	at io.mockk.CapturingSlot.getCaptured(API.kt:2503)

As I see, the receiver wasn't captured. Any ideas?

k

Klitos Kyriacou

07/17/2022, 4:15 PM

I don't understand what you're trying to do. Shouldn't it be something like this?

val slot = slot<String>()
every { capture(slot).snakeCase() } returns "a_b_c"
val res = "xyz".snakeCase()
println(slot.captured)

Have you initialised with

mockkStatic

first?

m

Mikhail

07/17/2022, 4:18 PM

I want the example function return the passed string (no-op, basically) Yeah, I've used

mockkStatic

val slot = slot<String>()
every {
    capture(slot).snakeCase()
} returns slot.captured // <- fails here

wait, maybe I should do this:

val slot = slot<String>()
every {
    capture(slot).snakeCase()
} answers {
    slot.captured
}

let me try

k

Klitos Kyriacou

07/17/2022, 4:38 PM

The above should work. Also try:

every { any().snakeCase() } answers { firstArg() }

👍 1

m

Mikhail

07/17/2022, 4:45 PM

Your suggestion works perfectly! Thanks. Also, note that I had to use

any<String>()

instead.

👍 1

378 Views

#mockk Join Slack