Tried running:

@Test
    fun firstTest() {

        //val inFiles = dirToObjectFiles("com.github.alexdochioiu.test1")

        kotlinc()
            .withProcessors(TimeTurnerProcessor())
            .addKotlin(
                "input.kt", """
        package com.github.alexdochioiu.example

        import android.arch.lifecycle.Lifecycle
        import com.github.alexdochioiu.timeturner.GlobalSurvivor
        import com.github.alexdochioiu.timeturner.Survivor
        import com.github.alexdochioiu.timeturner.SurvivorBinding
        import java.util.*

        /**
         * Created by Alexandru Iustin Dochioiu on 30-Jan-19
         */
        @Survivor
        class TestPresenter(lifecycle: Lifecycle) {

            @GlobalSurvivor
            var survivingElements: MutableList<String> = ArrayList()

            @GlobalSurvivor
            var myInt: Int = 2

            @GlobalSurvivor
            var myBool: Boolean = true

            @GlobalSurvivor
            var myStr = "Test"

            init {
            }
        }
        """.trimIndent()
            )
            .compile()
            .succeeded()

    }

java.io.IOException: Directory 'C:\Users\JeeFo\AppData\Local\Temp\tmp9008736054030136230.tmp\unzippedAar\C:\Users\JeeFo\.gradle\caches\modules-2\files-2.1\com.android.support\appcompat-v7\28.0.0\132586ec59604a86703796851a063a0ac61f697b' could not be created

	at org.apache.commons.io.FileUtils.openOutputStream(FileUtils.java:361)
	at org.apache.commons.io.FileUtils.openOutputStream(FileUtils.java:324)
	at org.apache.commons.io.FileUtils.copyToFile(FileUtils.java:1529)
	at org.apache.commons.io.FileUtils.copyInputStreamToFile(FileUtils.java:1506)
	at kompile.testing.Compiler.extractJarFromAar(Compiler.kt:143)
	at kompile.testing.Compiler.access$extractJarFromAar(Compiler.kt:22)
	at kompile.testing.Compiler$classpathFiles$2.invoke(Compiler.kt:130)
	at kompile.testing.Compiler$classpathFiles$2.invoke(Compiler.kt:22)
	at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:74)
	at kompile.testing.Compiler.getClasspathFiles(Compiler.kt)
	at kompile.testing.Compiler.fullClasspath(Compiler.kt:95)
	at kompile.testing.Compiler.compile(Compiler.kt:58)
	at com.github.alexdochioiu.timeturnerprocessor.TimeTurnerProcessorTest.firstTest(TimeTurnerProcessorTest.kt:70)

P.S. I am running Android Studio 3.3.1 on Windows 10

The file https://github.com/permissions-dispatcher/kompile-testing/blob/master/src/main/java/kompile/testing/Compiler.kt is derived from https://github.com/square/moshi/blob/master/kotlin/codegen/src/test/java/com/squareup/moshi/kotlin/codegen/KotlinCompilerCall.kt but does not retain the copyright designation and license information in the derived work. In order to use this code, you must comply with item 4 of the Apache license (the license of the original work).

I simply changed kapt.kotlin.generated to the same directory where Filer API creates files so that both old way and Filer API are supported. We could keep them separate but I think eventually all APs should migrate to Filer API.

I have this test

class SampleTest {
  @Test
  fun testTriggersErrorWhenAppliedToClass() {
    kotlinc()
      .withProcessors(ModelGeneratorProcessor())
      .addKotlin("TestModel.kt", """
        fun main() {
        
        }
      """.trimIndent())
      .compile()
      .failed()
      .withErrorContaining("blah")
  }
}

It fails with

org.junit.ComparisonFailure: null 
Expected :blah
Actual   :error: [kapt] 'com.sun.tools.javac.util.Context' class can't be found ('tools.jar' is absent in the plugin classpath). Kapt won't work.

I am using kotlin 1.3.21, The build.gradle contains:

  testImplementation("org.permissionsdispatcher:kompile-testing:0.1.2")
  testImplementation(files(Jvm.current().toolsJar)) // tried to add this, didn't help

Any hints on what do I do wrong?

Currently library's performance is not so good because there're so many File I/O. We should improve that by introducing on-memory based File manipulation system.

ref: https://github.com/google/compile-testing/blob/master/src/main/java/com/google/testing/compile/InMemoryJavaFileManager.java