Fuzzing of dart:io Directory API.

tests/standalone/io/directory_fuzz_test.dart

+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+// 'fuzz' test the directory APIs by providing unexpected type
+// arguments. The test passes if the VM does not crash.
+
+#import('dart:io');
+#import('dart:isolate');
+
+#import('fuzz_support.dart');
+
+fuzzSyncMethods() {
+  typeMapping.forEach((k, v) {
+    doItSync(() {
+      var d = new Directory(v);
+      doItSync(d.existsSync);
+      doItSync(d.createSync);
+      doItSync(d.deleteSync);
+      doItSync(() {
+        d.createTempSync().deleteSync();
+      });
+      doItSync(() {
+        // Let's be a little careful. If the directory exists we don't
+        // want to delete it and all its contents.
+        if (!d.existsSync()) d.deleteRecursivelySync();
+      });
+      typeMapping.forEach((k2, v2) {
+        doItSync(() => d.renameSync(v2));
+        doItSync(() => d.list(v2).onError = (e) => null);
+      });
+    });
+  });
+}
+
+fuzzAsyncMethods() {
+  var port = new ReceivePort();
+  var futures = [];
+  typeMapping.forEach((k, v) {
+    var d = new Directory(v);
+    futures.add(doItAsync(d.exists));
+    futures.add(doItAsync(d.create));
+    futures.add(doItAsync(d.delete));
+    futures.add(doItAsync(() {
+      return d.createTemp().chain((temp) {
+        return temp.delete();
+      });
+    }));
+    futures.add(doItAsync(() {
+      return d.exists().chain((res) {
+        if (!res) return d.deleteRecursively();
+        return new Future.immediate(true);
+      });
+    }));
+    typeMapping.forEach((k2, v2) {
+      futures.add(doItAsync(() => d.rename(v2)));
+    });
+  });
+  Futures.wait(futures).then((ignore) => port.close());
+}
+
+main() {
+  fuzzSyncMethods();
+  fuzzAsyncMethods();
+}