Is there a way to add "Process Groovy" steps when generating XML?

[erichzimmermansonos]

I am performing a variation on the following test code:

    @Unroll
    void 'test DSL script #file.name can generate Job XML'(File file) {
        given:
        JobManagement jm = new JenkinsJobManagement(
                System.out,
                [SCM_ROOT: '//depot/branches/external_dsl/test',
                 BRANCH_NAME: 'external_dsl',
                 AUTOMATION_ENVIRONMENT: dslConfig.path],
                workspaceRoot)

        when:
        GeneratedItems items = new DslScriptLoader(jm).runScript(file.text)

        then:
        noExceptionThrown()
        assertJobsBuilt(writeOutXmlForGeneratedJobs(items)
        )

        where:
        file << jobFiles
   }

In the actual seed Job, I have an additional groovy file, generateBranchConfigs.groovy, which runs prior to the DSL processing.

I have tried to include the following in my setupSpec() method:

        GroovyShell sh = new GroovyShell()
        String[] shellArgs = []
        File groovyFile = new File("/dsl/src/main/resources/scripts/generateBranchConfigs.groovy")
        sh.run(groovyFile, shellArgs as String[])

However, this approach doesn't have the environment variables that I inject.

Should I set the local environment variables in setupSpec(), or is there a way to configure jm to include the file-generation groovy script?

PS - the code above results in an error, because the Groovy script retrieves null for a required Environment Variable.