From 3c5de56e839d14e700ceb3502742afebaf598c05 Mon Sep 17 00:00:00 2001
From: Ilya Gorbunov <ilya.gorbunov@jetbrains.com>
Date: Thu, 3 Sep 2015 18:50:34 +0300
Subject: [PATCH] Improve diagnostics when test cleanup fails.

---
 .../test/kotlin/org/jetbrains/kotlin/gradle/BaseGradleIT.kt   | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libraries/tools/kotlin-gradle-plugin/src/test/kotlin/org/jetbrains/kotlin/gradle/BaseGradleIT.kt b/libraries/tools/kotlin-gradle-plugin/src/test/kotlin/org/jetbrains/kotlin/gradle/BaseGradleIT.kt
index 03303d3a65d..f50f3efe9ef 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/test/kotlin/org/jetbrains/kotlin/gradle/BaseGradleIT.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/test/kotlin/org/jetbrains/kotlin/gradle/BaseGradleIT.kt
@@ -188,7 +188,9 @@ abstract class BaseGradleIT {
             f.listFiles()?.forEach { deleteRecursively(it) }
             val fileList = f.listFiles()
             if (fileList != null) {
-                assertTrue(fileList.isEmpty())
+                if (!fileList.isEmpty()) {
+                    fail("Expected $f to be empty but it has files: ${fileList.joinToString { it.name }}")
+                }
             } else {
                 fail("Error listing directory content")
             }