1 files changed, 51 insertions, 0 deletions
diff --git a/modules/libjar/test/unit/test_crx.js b/modules/libjar/test/unit/test_crx.js
new file mode 100644
index 0000000000..6ec564e981
--- /dev/null
+++ b/modules/libjar/test/unit/test_crx.js
@@ -0,0 +1,51 @@
+/* -*- 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/. */
+
+function wrapInputStream(input) {
+  let nsIScriptableInputStream = Ci.nsIScriptableInputStream;
+  let factory = Cc["@mozilla.org/scriptableinputstream;1"];
+  let wrapper = factory.createInstance(nsIScriptableInputStream);
+  wrapper.init(input);
+  return wrapper;
+}
+
+function extract_crx(filepath) {
+  let file = do_get_file(filepath);
+
+  let zipreader = Cc["@mozilla.org/libjar/zip-reader;1"].createInstance(
+    Ci.nsIZipReader
+  );
+  zipreader.open(file);
+  // do crc stuff
+  function check_archive_crc() {
+    zipreader.test(null);
+    return true;
+  }
+  Assert.ok(check_archive_crc());
+  zipreader.findEntries(null);
+  let stream = wrapInputStream(
+    zipreader.getInputStream("modules/libjar/test/Makefile.in")
+  );
+  let dirstream = wrapInputStream(
+    zipreader.getInputStream("modules/libjar/test/")
+  );
+  zipreader.close();
+  zipreader = null;
+  Cu.forceGC();
+  Assert.ok(!!stream.read(1024).length);
+  Assert.ok(!!dirstream.read(100).length);
+}
+
+// Make sure that we can read from CRX files as if they were ZIP files.
+function run_test() {
+  // Note: test_crx_dummy.crx is a dummy crx file created for this test. The
+  // public key and signature fields in the header are both empty.
+  extract_crx("data/test_crx_dummy.crx");
+
+  // Note: test_crx_v3_dummy.crx is a dummy crx file created for this test. The
+  // header length field is set to 4 bytes.
+  extract_crx("data/test_crx_v3_dummy.crx");
+}