assertProgramOf(
            source,
            Program.Buildscript(source.fragment(1..11, 13..34))
        )
    }

    @Test
    fun `non-empty Stage 1 with non-empty Stage 2 parse to Stage 1 followed by Stage 2`() {

        val source = ProgramSource(
            "/src/fragment.gradle.kts",
            "\r\n\r\nplugins {\r\n  java\r\n}\r\nprintln(\"Stage 2\")\r\n\r\n"
        )

import org.junit.Test


class ProgramParserAnnotationErasureTest {

    @Test
    fun `empty Stage 1 with non-empty Stage 2 parse to Stage 2 with Stage 1 fragments erased`() {
        val scriptOnlySource =
            programSourceWith("""
                @Suppress("unused_variable")
                println("Stage 2")""".trimIndent())

        assertProgramOf(
            scriptOnlySource,

            "stage 1 buildscript\nstage 1 plugins\n"
        )
    }

    @Test
    fun `pluginManagement then buildscript then plugins`() {
        val source = ProgramSource(
            "settings.gradle.kts",
            """
            pluginManagement { println("stage 1 pluginManagement") }
            buildscript { println("stage 1 buildscript") }
            plugins { println("stage 1 plugins") }

import model.CIBuildModel
import model.Stage
import model.StageName
import model.Trigger
import projects.StageProject

class StagePasses(model: CIBuildModel, stage: Stage, prevStage: Stage?, stageProject: StageProject) : BaseGradleBuildType(init = {
    id(stageTriggerId(model, stage))
    uuid = stageTriggerUuid(model, stage)
    name = stage.stageName.stageName + " (Trigger)"
    type = Type.COMPOSITE

        )
    }

    var prevStage: Stage? = null
    val previousPerformanceTestPasses: MutableList<PerformanceTestsPass> = mutableListOf()
    model.stages.forEach { stage ->
        if (isSecurityFork() && stage.stageName > StageName.READY_FOR_RELEASE) {
            return@forEach
        }
        val stageProject = StageProject(model, functionalTestBucketProvider, performanceTestBucketProvider, stage, previousPerformanceTestPasses)

         * */
        String getLanguage();

        /**
         * The compile stage as a descriptive String.
         * Build scripts can be processed in multiple stages, depending on the language.
         * Groovy backed build scripts are processed in two stages.
         * Kotlin backed build scripts are processed in three stages
         * */
        String getStage();
    }

    public interface Result {
    }

import jetbrains.buildServer.configs.kotlin.BuildStep
import jetbrains.buildServer.configs.kotlin.buildSteps.script
import model.CIBuildModel
import model.Stage
import model.StageName

class FlakyTestQuarantine(model: CIBuildModel, stage: Stage, os: Os, arch: Arch = Arch.AMD64) : BaseGradleBuildType(stage = stage, init = {
    id("${model.projectId}_FlakyQuarantine_${os.asName()}_${arch.asName()}")
    name = "Flaky Test Quarantine - ${os.asName()} ${arch.asName()}"

        when (cachedScript) {
            is CachedScript.WholeFile -> cachedScript.stages.forEach { assertClassLoads(it, count) }
            is CachedScript.CompilationStage -> assertClassLoads(cachedScript, count)
        }

    private
    fun assertClassLoads(stage: CachedScript.CompilationStage, count: Int) =
        result.assertOccurrenceCountOf("loading", stage, count)

.../dataset/**/<testname>.skip
```

The test file structure also allows multiple stages:

```plain
# Input file for the test
.../dataset/**/<testname>_<stageNo>.yaml
.../dataset/**/<testname>_<stageNo>_meshconfig.yaml
.../dataset/**/<testname>_<stageNo>_expected.json

e.g.
# First stage files. Meshconfig carries over to the next stage
.../dataset/**/foo_0.yaml
.../dataset/**/foo_0_meshconfig.yaml

// purpose of discussion.  After adding scopes for both Stage and Unstage,
// Node_Y will receive both scopes "unstage" and "stage", while Node_X receives
// only scope "stage".  The semantic of scope "unstage" is preserved although
// scope "stage" is later appended.  As a result, Node_X and Node_Y will be put
// into different clusters.
//
//                Unstage -> Node_Y (scope "unstage & stage")
//                              |