1 files changed, 84 insertions, 0 deletions
diff --git a/integration-tests/src/test/kotlin/com/google/devtools/ksp/test/AndroidIT.kt b/integration-tests/src/test/kotlin/com/google/devtools/ksp/test/AndroidIT.kt
new file mode 100644
index 00000000..7c485212
--- /dev/null
+++ b/integration-tests/src/test/kotlin/com/google/devtools/ksp/test/AndroidIT.kt
@@ -0,0 +1,84 @@
+package com.google.devtools.ksp.test
+
+import org.gradle.testkit.runner.GradleRunner
+import org.gradle.testkit.runner.TaskOutcome
+import org.junit.Assert
+import org.junit.Rule
+import org.junit.Test
+import java.io.File
+
+class AndroidIT {
+    @Rule
+    @JvmField
+    val project: TemporaryTestProject = TemporaryTestProject("playground-android", "playground")
+
+    @Test
+    fun testPlaygroundAndroid() {
+        val gradleRunner = GradleRunner.create().withProjectDir(project.root)
+
+        // Disabling configuration cache. See https://github.com/google/ksp/issues/299 for details
+        gradleRunner.withArguments(
+            "clean", "build", "minifyReleaseWithR8", "--configuration-cache-problems=warn", "--info", "--stacktrace"
+        ).build().let { result ->
+            Assert.assertEquals(TaskOutcome.SUCCESS, result.task(":workload:build")?.outcome)
+            val mergedConfiguration = File(project.root, "workload/build/outputs/mapping/release/configuration.txt")
+            assert(mergedConfiguration.exists()) {
+                "Merged configuration file not found!\n${printDirectoryTree(project.root)}"
+            }
+            val configurationText = mergedConfiguration.readText()
+            assert("-keep class com.example.AClassBuilder { *; }" in configurationText) {
+                "Merged configuration did not contain generated proguard rules!\n$configurationText"
+            }
+        }
+    }
+}
+
+/**
+ * Pretty print the directory tree and its file names.
+ *
+ * @param folder
+ * must be a folder.
+ * @return
+ */
+fun printDirectoryTree(folder: File): String? {
+    require(folder.isDirectory) { "folder is not a Directory" }
+    val indent = 0
+    val sb = StringBuilder()
+    printDirectoryTree(folder, indent, sb)
+    return sb.toString()
+}
+
+private fun printDirectoryTree(
+    folder: File,
+    indent: Int,
+    sb: StringBuilder
+) {
+    require(folder.isDirectory) { "folder is not a Directory" }
+    sb.append(getIndentString(indent))
+    sb.append("+--")
+    sb.append(folder.name)
+    sb.append("/")
+    sb.append("\n")
+    for (file in folder.listFiles()) {
+        if (file.isDirectory) {
+            printDirectoryTree(file, indent + 1, sb)
+        } else {
+            printFile(file, indent + 1, sb)
+        }
+    }
+}
+
+private fun printFile(file: File, indent: Int, sb: StringBuilder) {
+    sb.append(getIndentString(indent))
+    sb.append("+--")
+    sb.append(file.name)
+    sb.append("\n")
+}
+
+private fun getIndentString(indent: Int): String? {
+    val sb = StringBuilder()
+    for (i in 0 until indent) {
+        sb.append("|  ")
+    }
+    return sb.toString()
+}