Initial data commit

Task/Empty-directory/Groovy/empty-directory-1.groovy

@@ -0,0 +1,4 @@
+def isDirEmpty = { dirName ->
+    def dir = new File(dirName)
+    dir.exists() && dir.directory && (dir.list() as List).empty
+}

Task/Empty-directory/Groovy/empty-directory-2.groovy

@@ -0,0 +1,9 @@
+def currentDir = new File('.')
+def random = new Random()
+def subDirName = "dir${random.nextInt(100000)}"
+def subDir = new File(subDirName)
+subDir.mkdir()
+subDir.deleteOnExit()
+
+assert ! isDirEmpty('.')
+assert isDirEmpty(subDirName)