问题
As the title suggest, the coroutine builder runBlocking
is missing in the coroutine liblary I just added in my build.gradle. Funny thing is every other thing appears to be available, GlobalScope
, CoroutineScope.launch
CoroutineScope.async
all present. runBlocking
isn't. What am I doing wrong?
here is my build.gradle
buildscript {
ext {
ktor_version = "1.1.1"
kotlin_version = "1.3.20-eap-52"
}
dependencies {
classpath "org.jetbrains.kotlin:kotlin-frontend-plugin:0.0.44"
classpath "org.jetbrains.kotlin:kotlin-serialization:$kotlin_version"
}
}
plugins {
id 'kotlin-multiplatform' version '1.3.20-eap-100'
}
repositories {
maven { url 'https://dl.bintray.com/kotlin/kotlin-eap' }
maven { url 'https://dl.bintray.com/kotlin/kotlin-js-wrappers' }
maven { url 'https://dl.bintray.com/kotlinx/kotlinx' }
maven { url "https://kotlin.bintray.com/kotlinx" }
jcenter()
mavenCentral()
}
group 'books'
version '0.0.0'
apply plugin: 'maven-publish'
apply plugin: "org.jetbrains.kotlin.frontend"
kotlin {
jvm() {
compilations.all {
tasks[compileKotlinTaskName].kotlinOptions {
jvmTarget = "1.8"
}
}
}
js() {
compilations.all {
tasks[compileKotlinTaskName].kotlinOptions {
def optDir = compileKotlinTaskName.contains("Test") ? "test/${project.name}.test.js" : "main/${project.name}.js"
kotlinOptions.metaInfo = true
kotlinOptions.outputFile = "$project.buildDir.path/js/$optDir"
kotlinOptions.sourceMap = true
kotlinOptions.moduleKind = 'commonjs'
kotlinOptions.main = "call"
}
}
}
sourceSets {
commonMain {
dependencies {
implementation kotlin('stdlib-common')
implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core-common:$ktor_version"
}
}
commonTest {
dependsOn commonMain
dependencies {
implementation kotlin('test-common')
implementation kotlin('test-annotations-common')
}
}
jvmMain {
dependencies {
implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:$ktor_version"
implementation kotlin('stdlib-jdk8')
}
}
jvmTest {
dependsOn jvmMain
dependencies {
implementation kotlin('test')
implementation kotlin('test-junit')
}
}
jsMain {
dependencies {
implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core-js:$ktor_version"
implementation kotlin('stdlib-js')
}
}
jsTest {
dependsOn jsMain
dependencies {
implementation kotlin('test-js')
}
}
}
}
task runJest(type: Exec) {
group = "verification"
commandLine "sh", "runJest.sh"
}
runJest.dependsOn(jsTest)
task testAll() {
group = "verification"
dependsOn(jvmTest, runJest)
}
kotlinFrontend {
npm {
devDependency("karma")
}
sourceMaps = true
webpackBundle {
bundleName = "main"
host = "0.0.0.0"
contentPath = file("$buildDir.path/resources/main")
}
}
With that gradle configuration, I have been able to write tests well (Learning TDD) with kotlin-multiplatform. And here is my sample below
import kotlin.test.*
import com.luge.books.*
import kotlinx.coroutines.*
class BookTest {
@BeforeTest
fun setup() {
val book = Book()
}
@Test
fun testingInstantiation() {
val book = Book()
assertEquals(book.year, 1990, "Books do match the year")
}
@Test
fun willFail() {
assertFalse(false)
}
@Test
fun testingCoroutines() {
val job = GlobalScope.launch {
delay(5000)
println("Doing stuff")
assertTrue(false)
}
}
}
If you look closely, the test testingCoroutines
passes, but since I am launching from the GlobalScope
, it just fires and forgets and the test returns without throwing any error. If I incoporate runBlocking
, the IDE highlights it with red color (you know, as something it doesn't understant), end even the kotlin compiler shouts, unresolved reference runBlockin
. Help please....
回答1:
After struggling here and there, I finally knew that runBlocking is only available in kotlin/jvm. So, it is not in kotlin/js or kotlin/common.
Just for future references, if you want to run multiplatform tests, then use this work around
来源:https://stackoverflow.com/questions/54938967/runblocking-coroutine-builder-is-not-resolved-in-the-project-other-builders-a