(自分メモ)
下記と同じことをKotlin/jvmで書きたい。テスト用サーバも。

環境

Ubuntu 22.04 on wsl2 on Windows 11
JDK 21

Project初期化

build.gradle.kts

plugins {
    kotlin("jvm") version "1.9.23"
    application
}
repositories { mavenCentral() }
dependencies {
    implementation("com.microsoft.playwright:playwright:1.43.0")  // https://mvnrepository.com/artifact/com.microsoft.playwright/playwright
    implementation("io.ktor:ktor-server-cio:2.3.10") // https://mvnrepository.com/artifact/io.ktor/ktor-server-cio
}
application {mainClass.set("MainKt")}

➜ソース

Main.kt

fun main() {
    thread { testServer() }
    Playwright.create().use { playwright ->
        val browser = playwright.chromium().launch(BrowserType.LaunchOptions().apply { headless = false })
        val page = browser.newPage()
        page.navigate("http://localhost:8000/")
        val text = page.getByRole(AriaRole.HEADING).textContent()
        println(text)
        browser.close()
    }
}


val testPage = """
<!DOCTYPE html><html>
<head><title>Hello World</title></head><body>
<h1>Hello World!</h1>
</body></html>
"""

fun testServer() = embeddedServer(CIO, port = 8000) {
    routing {
        get("/") { call.respondText(testPage, ContentType.Text.Html) }
    }
}.start(wait = false)

Build/Run

gradlew run

参考