https://kotlinlang.org logo
Channels
100daysofcode
100daysofkotlin
100daysofkotlin-2021
advent-of-code
aem
ai
alexa
algeria
algolialibraries
amsterdam
android
android-architecture
android-databinding
android-studio
androidgithubprojects
androidthings
androidx
androidx-xprocessing
anime
anko
announcements
apollo-kotlin
appintro
arabic
argentina
arkenv
arksemdevteam
armenia
arrow
arrow-contributors
arrow-meta
ass
atlanta
atm17
atrium
austin
australia
austria
awesome-kotlin
ballast
bangladesh
barcelona
bayarea
bazel
beepiz-libraries
belgium
benchmarks
berlin
big-data
books
boston
brazil
brikk
budapest
build
build-tools
bulgaria
bydgoszcz
cambodia
canada
carrat
carrat-dev
carrat-feed
chicago
chile
china
chucker
cincinnati-user-group
cli
clikt
cloudfoundry
cn
cobalt
code-coverage
codeforces
codemash-precompiler
codereview
codingame
codingconventions
coimbatore
collaborations
colombia
colorado
communities
competitive-programming
competitivecoding
compiler
compose
compose-android
compose-desktop
compose-hiring
compose-ios
compose-mp
compose-ui-showcase
compose-wear
compose-web
confetti
connect-audit-events
corda
cork
coroutines
couchbase
coursera
croatia
cryptography
cscenter-course-2016
cucumber-bdd
cyprus
czech
dagger
data2viz
databinding
datascience
dckotlin
debugging
decompose
decouple
denmark
deprecated
detekt
detekt-hint
dev-core
dfw
docs-revamped
dokka
domain-driven-design
doodle
dsl
dublin
dutch
eap
eclipse
ecuador
edinburgh
education
effective-kotlin
effectivekotlin
emacs
embedded-kotlin
estatik
event21-community-content
events
exposed
failgood
fb-internal-demo
feed
firebase
flow
fluid-libraries
forkhandles
forum
fosdem
fp-in-kotlin
framework-elide
freenode
french
fritz2
fuchsia
functional
funktionale
gamedev
ge-kotlin
general-advice
georgia
geospatial
german-lang
getting-started
github-workflows-kt
glance
godot-kotlin
google-io
gradle
graphic
graphkool
graphql
graphql-kotlin
graviton-browser
greece
grpc
gsoc
gui
hackathons
hacktoberfest
hamburg
hamkrest
helios
helsinki
hexagon
hibernate
hikari-cp
hire-me
hiring
hongkong
hoplite
http4k
hungary
hyderabad
image-processing
india
indonesia
inkremental
intellij
intellij-plugins
intellij-tricks
internships
introduce-yourself
io
ios
iran
israel
istanbulcoders
italian
jackson-kotlin
jadx
japanese
jasync-sql
java-to-kotlin-refactoring
javadevelopers
javafx
javalin
javascript
jdbi
jhipster-kotlin
jobsworldwide
jpa
jshdq
juul-libraries
jvm-ir-backend-feedback
jxadapter
k2-early-adopters
kaal
kafka
kakao
kalasim
kapt
karachi
karg
karlsruhe
kash_shell
kaskade
kbuild
kdbc
kgen-doc-tools
kgraphql
kinta
klaxon
klock
kloudformation
kmdc
kmm-español
kmongo
knbt
knote
koalaql
koans
kobalt
kobweb
kodein
kodex
kohesive
koin
koin-dev
komapper
kondor-json
kong
kontent
kontributors
korau
korean
korge
korim
korio
korlibs
korte
kotest
kotest-contributors
kotless
kotlick
kotlin-asia
kotlin-beam
kotlin-by-example
kotlin-csv
kotlin-data-storage
kotlin-foundation
kotlin-fuel
kotlin-in-action
kotlin-inject
kotlin-latam
kotlin-logging
kotlin-multiplatform-contest
kotlin-mumbai
kotlin-native
kotlin-pakistan
kotlin-plugin
kotlin-pune
kotlin-roadmap
kotlin-samples
kotlin-sap
kotlin-serbia
kotlin-spark
kotlin-szeged
kotlin-website
kotlinacademy
kotlinbot
kotlinconf
kotlindl
kotlinforbeginners
kotlingforbeginners
kotlinlondon
kotlinmad
kotlinprogrammers
kotlinsu
kotlintest
kotlintest-devs
kotlintlv
kotlinultimatechallenge
kotlinx-datetime
kotlinx-files
kotlinx-html
kotrix
kotson
kovenant
kprompt
kraph
krawler
kroto-plus
ksp
ktcc
ktfmt
ktlint
ktor
ktp
kubed
kug-leads
kug-torino
kvision
kweb
lambdaworld_cadiz
lanark
language-evolution
language-proposals
latvia
leakcanary
leedskotlinusergroup
lets-have-fun
libgdx
libkgd
library-development
lincheck
linkeddata
lithuania
london
losangeles
lottie
love
lychee
macedonia
machinelearningbawas
madrid
malaysia
mathematics
meetkotlin
memes
meta
metro-detroit
mexico
miami
micronaut
minnesota
minutest
mirror
mockk
moko
moldova
monsterpuzzle
montreal
moonbean
morocco
motionlayout
mpapt
mu
multiplatform
mumbai
munich
mvikotlin
mvrx
myndocs-oauth2-server
naming
navigation-architecture-component
nepal
new-mexico
new-zealand
newname
nigeria
nodejs
norway
npm-publish
nyc
oceania
ohio-kotlin-users
oldenburg
oolong
opensource
orbit-mvi
osgi
otpisani
package-search
pakistan
panamá
pattern-matching
pbandk
pdx
peru
philippines
phoenix
pinoy
pocketgitclient
polish
popkorn
portugal
practical-functional-programming
proguard
prozis-android-backup
pyhsikal
python
python-contributors
quasar
random
re
react
reaktive
realm
realworldkotlin
reductor
reduks
redux
redux-kotlin
refactoring-to-kotlin
reflect
refreshversions
reports
result
rethink
revolver
rhein-main
rocksdb
romania
room
rpi-pico
rsocket
russian
russian_feed
russian-kotlinasfirst
rx
rxjava
san-diego
science
scotland
scrcast
scrimage
script
scripting
seattle
serialization
server
sg-user-group
singapore
skia-wasm-interop-temp
skrape-it
slovak
snake
sofl-user-group
southafrica
spacemacs
spain
spanish
speaking
spek
spin
splitties
spotify-mobius
spring
spring-security
squarelibraries
stackoverflow
stacks
stayhungrystayfoolish
stdlib
stlouis
strife-discord-lib
strikt
students
stuttgart
sudan
swagger-gradle-codegen
swarm
sweden
swing
swiss-user-group
switzerland
talking-kotlin
tallinn
tampa
teamcity
tegal
tempe
tensorflow
terminal
test
testing
testtestest
texas
tgbotapi
thailand
tornadofx
touchlab-tools
training
tricity-kotlin-user-group
trójmiasto
truth
tunisia
turkey
turkiye
twitter-feed
uae
udacityindia
uk
ukrainian
uniflow
unkonf
uruguay
utah
uuid
vancouver
vankotlin
vertx
videos
vienna
vietnam
vim
vkug
vuejs
web-mpp
webassembly
webrtc
wimix_sentry
wwdc
zircon
Powered by
Title
j

Juan B

05/04/2022, 7:23 AM
Hi all, I'm trying to use Kotest + TestContainers (neo4J database) and I cannot make it work. The error is:
Not enough information to infer type variable T
io.kotest.extensions.testcontainers.TestContainerExtension public constructor TestContainerExtension<T : GenericContainer<out T>>(
    container: GenericContainer<out T>,
    lifecycleMode: LifecycleMode
)
Adding the test code in the thread 👇 Thanks for any help!!
Code in the test.
import io.kotest.core.extensions.install
import io.kotest.core.spec.style.FunSpec
import io.kotest.extensions.testcontainers.TestContainerExtension
import io.kotest.matchers.shouldBe
import org.junit.jupiter.api.Test
import org.springframework.boot.test.autoconfigure.data.neo4j.DataNeo4jTest
import org.testcontainers.containers.Neo4jContainer
import org.testcontainers.utility.DockerImageName

@DataNeo4jTest
class ExampleGraphRepositoryTest : FunSpec({

    // Example outside Kotest
    val neo4jContainer: Neo4jContainer<*> = Neo4jContainer<Nothing>("neo4j:4.4.5").apply {
        withAdminPassword("secret")
    }

    //Following Kotest extension example
    val container = install(TestContainerExtension(Neo4jContainer(DockerImageName.parse("neo4j:4.4.5")))) {
        withAdminPassword("secret")
    }

    @Test
    fun `is the container running`() {
        container.start()
        container.isRunning() shouldBe true
    }
})
s

sam

05/04/2022, 11:54 AM
What line has the error
j

Juan B

05/05/2022, 6:18 PM
The error is instantiating the container (see attached pic from IDE error message)
val container = install(TestContainerExtension(Neo4jContainer(DockerImageName.parse("neo4j:4.4.5")))) {
        withAdminPassword("secret")
    }
The stack trace is running the test:
Caused by: java.lang.reflect.InvocationTargetException
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480)
	at kotlin.reflect.jvm.internal.calls.CallerImpl$Constructor.call(CallerImpl.kt:41)
	at kotlin.reflect.jvm.internal.KCallableImpl.call(KCallableImpl.kt:108)
	at io.kotest.engine.spec.InstantiateSpecKt.javaReflectNewInstance(instantiateSpec.kt:51)
	... 105 more
Caused by: java.lang.IllegalStateException: Could not find a valid Docker environment. Please see logs and check configuration
	at org.testcontainers.dockerclient.DockerClientProviderStrategy.lambda$getFirstValidStrategy$4(DockerClientProviderStrategy.java:157)
	at java.base/java.util.Optional.orElseThrow(Optional.java:403)
	at org.testcontainers.dockerclient.DockerClientProviderStrategy.getFirstValidStrategy(DockerClientProviderStrategy.java:149)
	at org.testcontainers.DockerClientFactory.getOrInitializeStrategy(DockerClientFactory.java:147)
	at org.testcontainers.DockerClientFactory.client(DockerClientFactory.java:188)
	at org.testcontainers.DockerClientFactory$1.getDockerClient(DockerClientFactory.java:102)
	at com.github.dockerjava.api.DockerClientDelegate.authConfig(DockerClientDelegate.java:108)
	at org.testcontainers.containers.GenericContainer.start(GenericContainer.java:325)
	at io.kotest.extensions.testcontainers.TestContainerExtension.mount(TestContainerExtension.kt:33)
	at io.kotest.extensions.testcontainers.TestContainerExtension.mount(TestContainerExtension.kt:17)
	at io.kotest.core.extensions.MountableExtensionKt.install(MountableExtension.kt:36)
	at dev.salsa.core.profile.adapter.outbound.worker.WorkerGraphRepositoryTest$1.invoke(WorkerGraphRepositoryTest.kt:21)
	at dev.salsa.core.profile.adapter.outbound.worker.WorkerGraphRepositoryTest$1.invoke(WorkerGraphRepositoryTest.kt:13)
	at io.kotest.core.spec.style.FunSpec.<init>(funSpec.kt:25)
	at dev.salsa.core.profile.adapter.outbound.worker.WorkerGraphRepositoryTest.<init>(WorkerGraphRepositoryTest.kt:13)
	... 113 more
Thanks for any help @sam!
Hi @sam, wondering if you have any clue or recommendation. Thank you 🙏🏻
s

sam

05/09/2022, 2:02 PM
Caused by: java.lang.IllegalStateException: Could not find a valid Docker environment
sounds like docker engine isn't installed on the machine you're running this on