feat(repo): add kotest for testing

build-logic/src/main/kotlin/Utils.kt

@@ -0,0 +1,5 @@
+import org.gradle.api.artifacts.MinimalExternalModuleDependency
+import org.gradle.api.artifacts.VersionCatalog
+import org.gradle.api.provider.Provider
+
+fun VersionCatalog.getLibrary(name: String): Provider<MinimalExternalModuleDependency> = findLibrary(name).get()

build-logic/src/main/kotlin/kotlin-base.gradle.kts

@@ -7,3 +7,17 @@ plugins {
 ktfmt {
     kotlinLangStyle()
 }
+
+val catalog = extensions.getByType<VersionCatalogsExtension>().named("libs")
+
+dependencies {
+    testImplementation(catalog.getLibrary("kotest"))
+}
+
+tasks.test {
+    useJUnitPlatform()
+}
+
+kotlin {
+    jvmToolchain(17)
+}

gradle/libs.versions.toml

@@ -2,11 +2,15 @@
 # https://docs.gradle.org/current/userguide/platforms.html#sub::toml-dependencies-format
 
 [versions]
-kotlin = "1.9.22"
-ktfmt = "0.17.0"
 detekt = "1.23.5"
+ktfmt = "0.17.0"
+kotest = "5.8.0"
+kotlin = "1.9.22"
+
+[libraries]
+kotest = { module = "io.kotest:kotest-runner-junit5", version.ref = "kotest" }
 
 [plugins]
-kotlin = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }
-ktfmt = { id = "com.ncorti.ktfmt.gradle", version.ref = "ktfmt" }
 detekt = { id = "io.gitlab.arturbosch.detekt", version.ref = "detekt" }
+ktfmt = { id = "com.ncorti.ktfmt.gradle", version.ref = "ktfmt" }
+kotlin = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }