use multiplatform filesystem api

build.gradle.kts

@@ -43,6 +43,7 @@ kotlin {
       implementation(kotlin("test"))
       implementation(kotlin("reflect"))
       implementation(libs.kotlinx.coroutines.test)
+      implementation(libs.kotlinx.io)
       implementation(libs.ktor.client.mock)
     }
   }

gradle/libs.versions.toml

@@ -1,7 +1,8 @@
 [versions]
 # Regular libraries: keep as up to date as possible.
-kotlinx-serialization = "1.8.1"
 kotlinx-coroutines-test = "1.10.2"
+kotlinx-io = "0.7.0"
+kotlinx-serialization = "1.8.1"
 ktor = "3.1.3"
 
 # Regular tools: keep as up to date as possible
@@ -17,6 +18,7 @@ tool-prettier = "3.5.3"
 
 [libraries]
 kotlinx-coroutines-test = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-test", version.ref = "kotlinx-coroutines-test" }
+kotlinx-io = { module = "org.jetbrains.kotlinx:kotlinx-io-core", version.ref = "kotlinx-io" }
 kotlinx-serialization-json = { module = "org.jetbrains.kotlinx:kotlinx-serialization-json", version.ref = "kotlinx-serialization" }
 ktorfit = { module = "de.jensklingenberg.ktorfit:ktorfit-lib", version.ref = "gradle-ktorfit" }
 ktor-client-mock = { module = "io.ktor:ktor-client-mock", version.ref = "ktor" }

src/jvmTest/kotlin/dev/sargunv/pokekotlin/test/LiveTest.kt

@@ -1,9 +1,9 @@
 package dev.sargunv.pokekotlin.test
 
 import dev.sargunv.pokekotlin.client.PokeApiClient
+import kotlin.test.Test
 import kotlin.test.assertEquals
 import kotlinx.coroutines.test.runTest
-import org.junit.Test
 
 class LiveTest {
 

src/jvmTest/kotlin/dev/sargunv/pokekotlin/test/MockServer.kt

@@ -10,9 +10,9 @@ import io.ktor.client.request.HttpRequestData
 import io.ktor.client.request.HttpResponseData
 import io.ktor.http.HttpStatusCode
 import io.ktor.http.headersOf
-import java.io.File
-import java.io.FileReader
-import java.nio.file.Paths
+import kotlin.io.path.Path
+import kotlin.io.path.exists
+import kotlin.io.path.readText
 import kotlinx.serialization.json.JsonObject
 import kotlinx.serialization.json.JsonPrimitive
 import kotlinx.serialization.json.buildJsonArray
@@ -23,8 +23,6 @@ object MockServer {
   val mockEngine = MockEngine { request -> dispatch(request) }
   val client = PokeApiClient(engine = mockEngine)
 
-  private val sampleArchivePath = Paths.get(MockServer::class.java.getResource("/data")!!.toURI())
-
   private fun limit(text: String, limit: Int): String {
     val fullObj = PokeApiJson.decodeFromString<JsonObject>(text)
     val fullResults = fullObj["results"]!!.jsonArray
@@ -38,11 +36,11 @@ object MockServer {
   }
 
   private fun MockRequestHandleScope.dispatch(request: HttpRequestData): HttpResponseData {
-    val basePath = request.url.encodedPath.dropLastWhile { it != '/' }
+    val basePath = request.url.encodedPath
     val limit = request.url.parameters["limit"]?.toInt()
-    val file = File(sampleArchivePath.toString() + basePath + "index.json")
+    val file = Path("src/jvmTest/resources/data" + basePath + "index.json")
     return if (file.exists()) {
-      val text = FileReader(file).use { it.readText() }
+      val text = file.readText()
       val content = if (limit != null) limit(text, limit) else text
       respond(content = content, headers = headersOf("content-type", "application/json"))
     } else respondError(HttpStatusCode.NotFound)