failure.assertHasDescription("Could not compile build file '${buildFile}'.")
                .assertThatCause(containsString("build file '$buildFile': 3: unable to resolve class org.gradle.unknown.Unknown"))
                .assertHasFileName("Build file '$buildFile'")
                .assertHasLineNumber(3)
    }

    def "produces reasonable error message when buildFile evaluation fails with exception"() {
        when:

        file("run.sh") << '''#!/bin/sh
# convert paths into absolute Unix-like paths
BUILD_FILE=$(cygpath --absolute --unix build.gradle)
SRC_DIR=$(cygpath --absolute --unix src)
# pass them to the generated start script
build/install/sample/bin/sample "$BUILD_FILE" "$SRC_DIR"
'''
        buildFile << """
task execStartScript(type: Exec) {
    commandLine 'cmd.exe', '/d', '/c', 'sh', 'run.sh'
}
"""

        buildFile << """
tasks.help { t ->
    assert t instanceof $Help.name
    assert delegate instanceof $Help.name
    description = "this is task \$name"
}
assert tasks.help.description == "this is task help"
"""

        expect:
        succeeds()
    }

    def "reports read unknown property from configure closure"() {
        buildFile << """
tasks.help {
    println unknown

        buildFile << taskWithNestedInput()
        buildFile << namedBeanClass()
        buildFile << """
            myTask.nested = [new NamedBean('name', 'value1'), new NamedBean('name', 'value2')]
        """

        expect:
        succeeds "myTask"
    }

    def "nested Provider is unpacked"() {
        buildFile << taskWithNestedInput()

class TaskExecutionIntegrationTest extends AbstractIntegrationSpec implements TasksWithInputsAndOutputs {

    @UnsupportedWithConfigurationCache
    def taskCanAccessTaskGraph() {
        buildFile << """
            boolean notified = false
            task a(dependsOn: 'b') {
                doLast { task ->
                    assert notified
                    assert gradle.taskGraph.hasTask(task)

        given:
        buildA.buildFile << """
            dependencies {
                implementation "org.test:buildB:1.0"
            }
        """
        buildB.buildFile << """
            dependencies {
                implementation "org.test:buildC:1.0"
            }
        """
        def buildC = singleProjectBuild("buildC") {
            buildFile << """
                apply plugin: 'java'

            rootProject.name = 'B'
            include 'foo', 'bar'
        """
        buildB.buildFile << """
            allprojects {
                apply plugin: 'java'
                group = 'org.test'
                version = '1.0'
            }
        """
        repo.commit('initial')
        buildFile << """
            apply plugin: 'base'

            repositories { maven { url "${mavenRepo.uri}" } }

        given:
        buildFile << """
            class Foo0 {
                static final byte[] MEMORY_HOG = new byte[10 * 1024 * 1024]
            }
            task myTask() {
                doLast {
                    println new Foo0()
                }
            }
        """

        expect:
        for(int i = 0; i < 35; i++) {

        buildFile << """
            javadoc {
                options.stylesheetFile = file('src/not-docs/custom.css')
            }
        """
        succeeds("javadoc")
        then:
        skipped(":javadoc")
    }

    def "can exclude a package by source path"() {
        buildFile << """
            plugins {
                id 'java'

        given:
        file("input.txt") << "data"
        buildFile << adHocTaskWithInputs()

        expect:
        taskIsNotCached ':adHocTask'
    }

    def "ad hoc tasks are cached when explicitly requested"() {
        given:
        file("input.txt") << "data"
        buildFile << adHocTaskWithInputs()
        buildFile << 'adHocTask { outputs.cacheIf { true } }'

        expect: