BuildScriptBuilder.Expression functionalTestImplementation = buildScriptBuilder.containerElementExpression("configurations", "functionalTestImplementation");
            BuildScriptBuilder.Expression testImplementation = buildScriptBuilder.containerElementExpression("configurations", "testImplementation");
            buildScriptBuilder.methodInvocation(null, functionalTestImplementation, "extendsFrom", testImplementation);

    // Use value
    prop = bar.one
}
""")
    }

    def "can reference container elements in expressions"() {
        given:
        def e1 = builder.containerElementExpression("things", "element1")
        def e2 = builder.containerElementExpression("things.nested", "element2")
        def e3 = builder.propertyExpression(e2, "outputDir")
        def e4 = builder.methodInvocationExpression("extendsFrom", e3)

    // Use value
    prop = one
}
""")
    }

    def "can reference container elements in expressions"() {
        given:
        def e1 = builder.containerElementExpression("things", "element1")
        def e2 = builder.containerElementExpression("things.nested", "element2")
        def e3 = builder.propertyExpression(e2, "outputDir")
        def e4 = builder.methodInvocationExpression("extendsFrom", e3)

        ScriptBlockBuilder publishing = builder.block(null, "publishing");
        publishing.containerElement(null, "publications", "maven", "MavenPublication", p -> {
            p.methodInvocation(null, "from", builder.containerElementExpression("components", "java"));
            if (testsJarTaskGenerated) {
                p.methodInvocation(null, "artifact", builder.propertyExpression("testsJar"));
            }
        });
    }

    }

    /**
     * Creates an expression that references an element in a container.
     */
    public Expression containerElementExpression(String container, String element) {
        return new ContainerElementExpression(container, element);
    }

    private static List<ExpressionValue> expressionValues(Object... expressions) {