From 02e6fb348dc0c9b25b2d428e09926ac769afa9d6 Mon Sep 17 00:00:00 2001
From: Mikhail Glukhikh <mikhail.glukhikh@jetbrains.com>
Date: Wed, 17 Oct 2018 15:10:39 +0300
Subject: [PATCH] MPP wizard tests: check no empty files are generated

---
 .../AbstractGradleMultiplatformWizardTest.kt   | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/idea/idea-gradle/tests/org/jetbrains/kotlin/gradle/AbstractGradleMultiplatformWizardTest.kt b/idea/idea-gradle/tests/org/jetbrains/kotlin/gradle/AbstractGradleMultiplatformWizardTest.kt
index 754970c1f69..d246e2e25c1 100644
--- a/idea/idea-gradle/tests/org/jetbrains/kotlin/gradle/AbstractGradleMultiplatformWizardTest.kt
+++ b/idea/idea-gradle/tests/org/jetbrains/kotlin/gradle/AbstractGradleMultiplatformWizardTest.kt
@@ -52,7 +52,6 @@ import org.jetbrains.plugins.gradle.settings.GradleExecutionSettings
 import org.jetbrains.plugins.gradle.settings.GradleProjectSettings
 import org.jetbrains.plugins.gradle.settings.GradleSettings
 import org.jetbrains.plugins.gradle.util.GradleConstants
-import org.junit.Test
 import java.io.File
 import java.io.IOException
 import java.util.*
@@ -124,6 +123,8 @@ abstract class AbstractGradleMultiplatformWizardTest : ProjectWizardTestCase<Abs
             TestCase.assertTrue("enableFeaturePreview('GRADLE_METADATA')" in settingsScriptText)
         }
 
+        File(root.canonicalPath).assertNoEmptyChildren()
+
         val buildScript = VfsUtilCore.findRelativeFile("build.gradle", root)!!
         val buildScriptText = StringUtil.convertLineSeparators(VfsUtilCore.loadText(buildScript))
         println(buildScriptText)
@@ -135,6 +136,21 @@ abstract class AbstractGradleMultiplatformWizardTest : ProjectWizardTestCase<Abs
         }
     }
 
+    private fun File.assertNoEmptyChildren() {
+        for (file in walkTopDown()) {
+            if (!file.isDirectory) {
+                var empty = true
+                file.forEachLine {
+                    if (it.isNotEmpty()) {
+                        empty = false
+                        return@forEachLine
+                    }
+                }
+                TestCase.assertFalse("Generated file ${file.path} is empty", empty)
+            }
+        }
+    }
+
     @Throws(IOException::class)
     private fun Project.createProjectSubFile(relativePath: String): VirtualFile {
         val f = File(basePath!!, relativePath)