import org.gradle.test.fixtures.file.TestFile

abstract class IncrementalTestJvmComponent extends TestJvmComponent {

    abstract void changeSources(List<TestFile> testFiles)

    abstract void writeAdditionalSources(TestFile testFile)

    abstract TestFile createIgnoredFileInSources(TestFile sourceDir)

        personGroovyFile.text = personGroovyFile.text.replace("String name", "String name\\nString anotherName")
    }

    @Override
    void writeAdditionalSources(TestFile sourceDir) {
        sourceDir.file("java/Extra.groovy") << """
interface Extra {
    String whatever()
}
"""
    }

    List<JvmSourceFile> expectedOutputs = [

        def personJavaFile = sourceFiles.find { it.name == "Person.java" }
        personJavaFile.text = personJavaFile.text.replace("String name;", "String name; String anotherName;")
    }

    @Override
    void writeAdditionalSources(TestFile sourceDir) {
        sourceDir.file("java/Extra.java") << """
interface Extra {
    String whatever();
}
"""
    }

    List<JvmSourceFile> expectedOutputs = [

        def personScalaFile = sourceFiles.find { it.name == "Person.scala" }
        personScalaFile.text = personScalaFile.text.replace("name", "lastName")
    }

    @Override
    void writeAdditionalSources(TestFile testFile) {
        testFile.file("scala/Extra.scala") << """
object Extra {
  def someMethod(args: Array[String]) {
  }
}
"""

    }

    @Override