For questions related to the Kotlin testing framework 'Kotest', which was formerly known as Kotlintest.
Kotest is an open-source testing framework for Kotlin: https://github.com/kotest/kotest/
Questions tagged [kotest]
107 questions
17
votes
3 answers
kotlin-test: How to test for a specific type like: "is y instance of X"
How to test if a val/var is of an expected type?
Is there something I am missing in Kotlin Test, like:
value shouldBe instanceOf()
Here is how I implemented it:
inline fun instanceOf(): Matcher {
return object :…
Chriss
- 5,157
- 7
- 41
- 75
7
votes
3 answers
How to write beforeEach and beforeClass in kotlintest
Given is the example from kotlin-test github docs, but i don't see beforeEach or beforeClass concept here. I want to understand,
How to execute a code/method once before every test
How to execute a code/method once before every test class
class…
JTeam
- 1,455
- 1
- 11
- 16
6
votes
3 answers
Kotest with Mockk: How to clear verify count
So I have the following code:
When("SMS with location update command is received") {
every {
context.getString(R.string.location_sms, any(), any(), any(), any())
} returns "loc"
…
SMGhost
- 3,867
- 6
- 38
- 68
4
votes
1 answer
kotest change environment variables
I am writing tests for Ktor app using Kotests, but stumbled into the problem how can I change env variables for tests preferably globally. I have tried adding withEnvironment but it throw quite strange error into me
Unable to make field private…
Victor Orlyk
- 1,454
- 2
- 15
- 27
4
votes
1 answer
Is there a simpler way to test all permutations with Kotest property-based testing?
I'm working with kotlin + Kotest property testing and trying to test all permutations of 2 parameters with list generators like this:
"Some test"{
forAll(4 ,
Exhaustive.collection(listOf(
"a",
…
janicedn
- 53
- 5
4
votes
1 answer
Multiple assertions (assertAll) - Kotest
Is any way to check multiple assertions in Kotest in DSL style - without Assertions.assertAll method from JUnit?
Can I write something like
firstValue shouldBe 1
and secondValue shouldBe 2
Instead of
assertAll(
{ fistValue shouldBe 1 },
{…
Gustlik
- 350
- 2
- 12
3
votes
1 answer
Mockk verify fails when checking called and wasNot called
I am trying to verify that a function was not called using the following:
verify {
managementService.deleteUser(any()) wasNot Called
}
That verification fails with the message:
Verification failed: call 1 of…
HotN
- 4,216
- 3
- 40
- 51
3
votes
2 answers
Assert that list contains elements with specific properties in any order
In Junit5 i used the following snippet often to test if a collection contains elements that fullfill certain criteria:
assertThat("The list of addresses", addresses.getAddressReferences(), containsInAnyOrder(
allOf(
…
Chris
- 7,675
- 8
- 51
- 101
3
votes
1 answer
Ktor testing Fail to serialize body. Content has type: class ... but OutgoingContent expected
so trying to understand how I can make testing ktor app with testcontainers
this is my code
package com.app
import com.app.base.db.DbFactory
import com.app.features.auth.RegisterDTO
import com.app.plugins.*
import…
Victor Orlyk
- 1,454
- 2
- 15
- 27
3
votes
2 answers
Kotest and kotlinx-coroutines-test Integration
I use the Funspec testing style in kotest and I get a coroutineScope injected automatically by the framework as shown below.
class MyTestSpec: FunSpec() {
init {
test("test event loop") {
mySuspendedFunction() // a…
rogue-one
- 11,259
- 7
- 53
- 75
3
votes
2 answers
Handle multiple exceptions in Kotlin Kotest eventually
As per kotest docs: https://github.com/kotest/kotest/blob/master/doc/nondeterministic.md
You can tell eventually to ignore specific exceptions and any others will immediately fail the test.
I want to pass multiple exceptions to eventually that I…
Meesam Haider
- 31
- 1
3
votes
1 answer
How do I "obtain transaction-synchronized Session for current thread" in a Micronaut / Kotest / Hibernate test
I'm trying to clean up a database used by my component tests after each one so it's blank for the next. To do this I've got something like the following:
@MicronautTest
class ExampleTest(
private val entityManager: EntityManager
) :…
MysteriousWaffle
- 439
- 1
- 5
- 16
3
votes
1 answer
Kotest - Generate exhaustive object permutations with no repeat
I want to be able to generate an exhaustive permutation of objects. Imagine the following object
data class Person (name: String, age: Int)
For testing purposes, I want to restrict the name to 3 values. Mohammad, Nasir, Rasul and age to 4 values.…
Nasir
- 2,984
- 30
- 34
3
votes
1 answer
Why IntelliJ Kotest plugin does not work well?
I've installed the Kotest plugin (1.1.22-IC-2020.3) for IntelliJ (2020.3). It allows me to create Kotest tests for/from my Kotlin classes, but those tests are not runnable from the test classes.
If I create a new Kotest run configuration I can run…
Pedro García Medina
- 407
- 4
- 9
3
votes
1 answer
Kotest breaks gradle's :test task with java.lang.IllegalArgumentException: Received a failure event for test with unknown id
I'm getting started with unit tests in Kotlin using Kotest. I use the following technologies that integrate somehow with Kotest:
Kotest itself
Kotlin / JVM
Gradle
Allure
Pitest
IntelliJ IDEA Plugin "Kotest"
In gradle, I included the following…
Raphael Tarita
- 770
- 1
- 6
- 31