1 files changed, 37 insertions, 0 deletions
diff --git a/xpcom/tests/unit/test_file_equality.js b/xpcom/tests/unit/test_file_equality.js
new file mode 100644
index 0000000000..74ea8046d8
--- /dev/null
+++ b/xpcom/tests/unit/test_file_equality.js
@@ -0,0 +1,37 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et: */
+/* 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/. */
+
+var LocalFile = CC("@mozilla.org/file/local;1", "nsIFile", "initWithPath");
+
+function run_test() {
+  test_normalized_vs_non_normalized();
+}
+
+function test_normalized_vs_non_normalized() {
+  // get a directory that exists on all platforms
+  var tmp1 = Services.dirsvc.get("TmpD", Ci.nsIFile);
+  var exists = tmp1.exists();
+  Assert.ok(exists);
+  if (!exists) {
+    return;
+  }
+
+  // the test logic below assumes we're starting with a normalized path, but the
+  // default location on macos is a symbolic link, so resolve it before starting
+  tmp1.normalize();
+
+  // this has the same exact path as tmp1, it should equal tmp1
+  var tmp2 = new LocalFile(tmp1.path);
+  Assert.ok(tmp1.equals(tmp2));
+
+  // this is a non-normalized version of tmp1, it should not equal tmp1
+  tmp2.appendRelativePath(".");
+  Assert.ok(!tmp1.equals(tmp2));
+
+  // normalize and make sure they are equivalent again
+  tmp2.normalize();
+  Assert.ok(tmp1.equals(tmp2));
+}