1 files changed, 70 insertions, 0 deletions
diff --git a/netwerk/test/unit/test_safeoutputstream.js b/netwerk/test/unit/test_safeoutputstream.js
new file mode 100644
index 0000000000..4925394ce4
--- /dev/null
+++ b/netwerk/test/unit/test_safeoutputstream.js
@@ -0,0 +1,70 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+function write_atomic(file, str) {
+  var stream = Cc[
+    "@mozilla.org/network/atomic-file-output-stream;1"
+  ].createInstance(Ci.nsIFileOutputStream);
+  stream.init(file, -1, -1, 0);
+  do {
+    var written = stream.write(str, str.length);
+    if (written == str.length) {
+      break;
+    }
+    str = str.substring(written);
+  } while (1);
+  stream.QueryInterface(Ci.nsISafeOutputStream).finish();
+  stream.close();
+}
+
+function write(file, str) {
+  var stream = Cc[
+    "@mozilla.org/network/safe-file-output-stream;1"
+  ].createInstance(Ci.nsIFileOutputStream);
+  stream.init(file, -1, -1, 0);
+  do {
+    var written = stream.write(str, str.length);
+    if (written == str.length) {
+      break;
+    }
+    str = str.substring(written);
+  } while (1);
+  stream.QueryInterface(Ci.nsISafeOutputStream).finish();
+  stream.close();
+}
+
+function checkFile(file, str) {
+  var stream = Cc["@mozilla.org/network/file-input-stream;1"].createInstance(
+    Ci.nsIFileInputStream
+  );
+  stream.init(file, -1, -1, 0);
+
+  var scriptStream = Cc["@mozilla.org/scriptableinputstream;1"].createInstance(
+    Ci.nsIScriptableInputStream
+  );
+  scriptStream.init(stream);
+
+  Assert.equal(scriptStream.read(scriptStream.available()), str);
+  scriptStream.close();
+}
+
+function run_test() {
+  var filename = "\u0913";
+  var file = Services.dirsvc.get("TmpD", Ci.nsIFile);
+  file.append(filename);
+
+  write(file, "First write");
+  checkFile(file, "First write");
+
+  write(file, "Second write");
+  checkFile(file, "Second write");
+
+  write_atomic(file, "First write: Atomic");
+  checkFile(file, "First write: Atomic");
+
+  write_atomic(file, "Second write: Atomic");
+  checkFile(file, "Second write: Atomic");
+}