task.setConfiguration 'foo'
        task.setDependencySpec 'bar'
        then:
        task.dependencySpec != null
        task.configuration.name == 'foo'
    }

    def "can limit the paths to a dependency"() {
        when:
        project.configurations.create("foo")
        task.setConfiguration 'foo'
        task.setDependencySpec 'bar'
        task.setShowSinglePathToDependency true

        then:

            }
            dependencies {
                conf 'org:top:1.0'
            }
            task insight(type: DependencyInsightReportTask) {
                showingAllVariants = false
                setDependencySpec { it.requested.module == 'leaf2' }
                configuration = configurations.conf
            }
        """

        when:
        run "insight"

        then:
        outputContains """

 * For more information on how to configure those please refer to docs for {@link #setDependencySpec(Object)} and
 * {@link #setConfiguration(String)}.
 * <p>
 * The task can also be configured from the command line.
 * For more information please refer to {@link #setDependencySpec(Object)}, {@link #setConfiguration(String)},
 * {@link #setShowSinglePathToDependency(boolean)}, and {@link #getShowingAllVariants()}.