使用testCompile/testRuntime时遇Unresolved reference: spek及test错误求助

Hey there! Let's tackle those frustrating unresolved reference errors you're seeing with Spek and your test dependencies. Here are the key steps to get things working again:

1. Replace Deprecated Gradle Configurations #

First off, testCompile and testRuntime are deprecated in newer Gradle versions (4.10+). They've been replaced with more precise configurations that Gradle and your IDE can better recognize. Swap them out for:

• testImplementation (replaces testCompile): Used for dependencies needed to compile your test code
• testRuntimeOnly (replaces testRuntime): Used for dependencies only needed at test runtime

2. Correct Spek and JUnit Platform Setup #

Spek relies on the JUnit 5 platform to run tests, so you need to make sure your build is configured to use it.

If you're using Gradle 5.0 or later, add this block to your project(":core") configuration to enable JUnit Platform for tests:

test {
    useJUnitPlatform()
}

For older Gradle versions, you'll need to apply the JUnit Platform plugin first:

apply plugin: 'org.junit.platform.gradle.plugin'

3. Fix Dependency Version Variables and Completeness #

Looking at your code, you have a truncated version variable for Hamkrest ($hamkrestVersi...). Make sure you finish that to use the full $hamkrestVersion variable, and double-check that all your version variables (kotlinVersion, spekVersion, etc.) are properly defined in your root build.gradle or gradle.properties file.

4. Sync Gradle and Clear IDE Caches #

Sometimes IDE caches can cause false unresolved reference errors. After updating your configuration:

• Click the "Sync Project with Gradle Files" button in your IDE (IntelliJ IDEA/Android Studio)
• If that doesn't work, go to File > Invalidate Caches... > Invalidate and Restart to clear stale cache data

Updated Configuration Example #

Here's what your fixed project(":core") block should look like:

project(":core") {
    apply plugin: "kotlin"

    dependencies {
        // ... 其他依赖
        testImplementation "org.jetbrains.kotlin:kotlin-test-junit5:$kotlinVersion"
        testImplementation "org.jetbrains.spek:spek-api:$spekVersion"
        testRuntimeOnly "org.jetbrains.spek:spek-junit-platform-engine:$spekVersion"
        testImplementation "com.nhaarman:mockito-kotlin:$mockitoVersion"
        testImplementation "com.natpryce:hamkrest:$hamkrestVersion"
    }

    // Enable JUnit Platform for Gradle 5.0+
    test {
        useJUnitPlatform()
    }
}

Give these changes a try, and your unresolved reference errors should disappear!

内容的提问来源于stack exchange，提问作者Abakada