DynamicObjectAware dynamicObjectAware = (DynamicObjectAware) bean;
        ConventionObject conventionObject = new ConventionObject();
        new DslObject(dynamicObjectAware).getConvention().getPlugins().put("plugin", conventionObject);

        call("{ it.conventionProperty = 'value' }", bean);
        assertThat(conventionObject.getConventionProperty(), equalTo("value"));