1 files changed, 18 insertions, 0 deletions
diff --git a/comm/mailnews/addrbook/test/unit/test_bug448165.js b/comm/mailnews/addrbook/test/unit/test_bug448165.js
new file mode 100644
index 0000000000..57337f7fa1
--- /dev/null
+++ b/comm/mailnews/addrbook/test/unit/test_bug448165.js
@@ -0,0 +1,18 @@
+/**
+ * A simple test to check for a regression of bug 448165: Mailnews crashes in
+ * nsAbMDBDirectory::DeleteCards if aCards is null
+ */
+function run_test() {
+  // get the Personal Address Book
+  let pab = MailServices.ab.getDirectory(kPABData.URI);
+  Assert.ok(pab instanceof Ci.nsIAbDirectory);
+  try {
+    pab.deleteCards(null); // this should throw an error
+    do_throw(
+      "Error, deleteCards should throw an error when null is passed to it"
+    );
+  } catch (e) {
+    // make sure the correct error message was thrown
+    Assert.equal(e.result, Cr.NS_ERROR_XPC_CANT_CONVERT_PRIMITIVE_TO_ARRAY);
+  }
+}