called = true;
    assertEquals(INITIAL_DELAY, initialDelay);
    assertEquals(DELAY, delay);
    assertEquals(UNIT, unit);
    assertEquals(testRunnable, command);
  }

  public void testFixedRateSchedule() {
    Scheduler schedule = Scheduler.newFixedRateSchedule(INITIAL_DELAY, DELAY, UNIT);
    Cancellable unused =
        schedule.schedule(
            null,
            new ScheduledThreadPoolExecutor(1) {

    called = true;
    assertEquals(INITIAL_DELAY, initialDelay);
    assertEquals(DELAY, delay);
    assertEquals(UNIT, unit);
    assertEquals(testRunnable, command);
  }

  public void testFixedRateSchedule() {
    Scheduler schedule = Scheduler.newFixedRateSchedule(INITIAL_DELAY, DELAY, UNIT);
    Cancellable unused =
        schedule.schedule(
            null,
            new ScheduledThreadPoolExecutor(1) {

import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.io.InputStream;
import java.nio.charset.Charset;
import java.util.concurrent.TimeUnit;
import java.util.regex.Pattern;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Tests for {@link ForwardingWrapperTester}. Live in a different package to detect reflection

    testClassesDirs = functionalTestSourceSet.output.classesDirs
    classpath = functionalTestSourceSet.runtimeClasspath
    useJUnitPlatform()
}

tasks.named<Test>("test") {
    // Use JUnit Jupiter for unit tests.
    useJUnitPlatform()
}
----
=====
[.multi-language-sample]
=====
[source, groovy]
----
tasks.register('functionalTest', Test) {

    }

    private
    fun givenChangingClass(
        className: String,
        initialBody: String,
        initialAssertion: (ClassFixture) -> Unit,
        changedBody: String,
        changedAssertion: (ClassFixture) -> Unit
    ): ClassChangeFixture {
        val initialClass = compileClass(className, initialBody)
        initialAssertion(initialClass)

    application
}

repositories {
    // Use Maven Central for resolving dependencies.
    mavenCentral()
}

dependencies {
    // Use JUnit Jupiter for testing.
    testImplementation(libs.junit.jupiter)

    testRuntimeOnly("org.junit.platform:junit-platform-launcher")

    // This dependency is used by the application.
    implementation(libs.guava)
}

import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.io.InputStream;
import java.nio.charset.Charset;
import java.util.concurrent.TimeUnit;
import java.util.regex.Pattern;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Tests for {@link ForwardingWrapperTester}. Live in a different package to detect reflection

import org.gradle.api.plugins.ExtensionAware
import org.gradle.api.provider.Provider
import org.hamcrest.CoreMatchers.equalTo
import org.hamcrest.CoreMatchers.sameInstance
import org.hamcrest.MatcherAssert.assertThat
import org.junit.Test
import spock.lang.Issue


class DependencyHandlerExtensionsTest {

    @Test
    fun `given group, name, version, configuration, classifier and ext, 'create' extension will build corresponding map`() {

            undefined()

        override fun push(codec: Codec<Any?>): Unit =
            undefined()

        override fun push(owner: IsolateOwner): Unit =
            undefined()

        override fun push(owner: IsolateOwner, codec: Codec<Any?>): Unit =
            undefined()

        override fun pop(): Unit =
            undefined()

        getStandardTestReportDir(dslDir, "util", "").file("index.html").assertDoesNotExist()

        where:
        dsl << ['groovy', 'kotlin']
    }

    @UsesSample("testing/junit-categories")
    def "can filter tests by JUnit category with #dsl dsl"() {
        given:
        TestFile dslDir = sample.dir.file(dsl)
        executer.inDirectory(dslDir)

        when:
        def result = succeeds("test")