Issue in mocking a script in shared library folder about jenkinspipelineunit HOT 7 CLOSED

@Library("commons")
import java.io.File // or whatever

echo aScript() // this is not mocked

def someMethod() {
  echo aScript()  // this one could be mocked
}
return this

  @Test
  void mock_bscript() throws Exception {
    helper.registerAllowedMethod("bScript", [], {'foo'}) // this one doesn't work
    def script = loadScript("template/pipeline/template.groovy")
    helper.registerAllowedMethod("bScript", [], {'ololo'}) // this does
    script.someMethod()
    printCallStack()
  }

Loading shared library jenkins-commons with version master
   template.run()
      template.aScript()
         aScript.bScript()
      template.echo(bar)
   template.someMethod()
      template.aScript()
         aScript.bScript()
      template.echo(ololo)

getBinding().setVariable("bScript", new Object() {
  public void call() {
    // your mocked behaviour
  }
});

    app
       |--build
                |--classes
                       |--test
                               |--aScriptSpec.class
               |--resources
                       |--test
                               |--lib
                                        |--commons@master
                                                  |--vars
                                                           |-- aScript.groovy
                                                           |--bScript.groovy
        |--src/test/groovy
             |--aScriptSpec.groovy
        |--vars
             |--aScript.groovy
             |--bScript.groovy
       |--build.gradle
       |--Jenkinsfile