then:
        templateOperation.bindings.size() == 3
        templateOperation.bindings.genDate.value != null
        templateOperation.bindings.genUser.value != null
        templateOperation.bindings.genGradleVersion.value != null
    }

    def "supports custom bindings"() {
        when:
        def templateOperation = builder.withBindings(someCustomBinding: "someCustomBindingValue").create()
        then:

        Map<String, String> map = new LinkedHashMap<>(3);
        map.put("genDate", now);
        map.put("genUser", System.getProperty("user.name"));
        map.put("genGradleVersion", GradleVersion.current().toString());
        return map;
    }

    public TemplateOperationBuilder newTemplateOperation() {
        return new TemplateOperationBuilder(defaultBindings);
    }