project.projectDir == temporaryFolder.testDirectory
        project.gradle.gradleHomeDir == project.file('gradleHome')
        project.gradle.gradleUserHomeDir == project.file('userHome')
    }

    def canApplyACustomPluginUsingClass() {
        when:
        def project = buildProject()
        project.apply plugin: CustomPlugin

        then:
        project.tasks.hello instanceof DefaultTask
    }