Update.

test/tempfile/temporary_directory.wren

@@ -0,0 +1,15 @@
+// retoor <retoor@molodetz.nl>
+
+import "tempfile" for TemporaryDirectory
+import "pathlib" for Path
+
+var tmp = TemporaryDirectory.new()
+System.print(tmp.name is String) // expect: true
+System.print(Path.new(tmp.name).exists()) // expect: true
+System.print(Path.new(tmp.name).isDir()) // expect: true
+System.print(tmp.closed) // expect: false
+System.print(tmp.delete) // expect: true
+
+tmp.cleanup()
+System.print(tmp.closed) // expect: true
+System.print(Path.new(tmp.name).exists()) // expect: false