1 files changed, 41 insertions, 0 deletions
diff --git a/integration-tests/src/test/kotlin/com/google/devtools/ksp/test/TemporaryTestProject.kt b/integration-tests/src/test/kotlin/com/google/devtools/ksp/test/TemporaryTestProject.kt
new file mode 100644
index 00000000..fea748f0
--- /dev/null
+++ b/integration-tests/src/test/kotlin/com/google/devtools/ksp/test/TemporaryTestProject.kt
@@ -0,0 +1,41 @@
+package com.google.devtools.ksp.test
+
+import org.junit.rules.TemporaryFolder
+import java.io.File
+
+class TemporaryTestProject(projectName: String, baseProject: String? = null) : TemporaryFolder() {
+    private val testProjectSrc = File("src/test/resources", projectName)
+    private val baseProjectSrc = baseProject?.let { File("src/test/resources", baseProject) }
+
+    override fun before() {
+        super.before()
+
+        baseProjectSrc?.copyRecursively(root)
+        testProjectSrc.copyRecursively(root, true)
+
+        val kotlinVersion = System.getProperty("kotlinVersion")
+        val kspVersion = System.getProperty("kspVersion")
+        val agpVersion = System.getProperty("agpVersion")
+        val testRepo = System.getProperty("testRepo").replace(File.separator, "/")
+        val gradleProperties = File(root, "gradle.properties")
+        gradleProperties.appendText("\nkotlinVersion=$kotlinVersion")
+        gradleProperties.appendText("\nkspVersion=$kspVersion")
+        gradleProperties.appendText("\nagpVersion=$agpVersion")
+        gradleProperties.appendText("\ntestRepo=$testRepo")
+        gradleProperties.appendText("\norg.gradle.unsafe.configuration-cache=true")
+        gradleProperties.appendText("\nkotlin.jvm.target.validation.mode=warning")
+        // Uncomment this to debug compiler and compiler plugin.
+        // gradleProperties.appendText("\nsystemProp.kotlin.compiler.execution.strategy=in-process")
+    }
+
+    fun restore(file: String) {
+        fun copySafe(src: File, dst: File) {
+            if (src.exists())
+                src.copyTo(dst, true)
+        }
+        baseProjectSrc?.let {
+            copySafe(File(baseProjectSrc, file), File(root, file))
+        }
+        copySafe(File(testProjectSrc, file), File(root, file))
+    }
+}