1 files changed, 40 insertions, 0 deletions
diff --git a/comm/mailnews/local/test/unit/test_pop3Duplicates.js b/comm/mailnews/local/test/unit/test_pop3Duplicates.js
new file mode 100644
index 0000000000..a863cbb1ed
--- /dev/null
+++ b/comm/mailnews/local/test/unit/test_pop3Duplicates.js
@@ -0,0 +1,40 @@
+/**
+ * The intent of this file is to test duplicate handling options
+ * in the pop3 download code.
+ */
+
+/* import-globals-from ../../../test/resources/POP3pump.js */
+load("../../../resources/POP3pump.js");
+
+var testSubjects = [
+  "[Bug 397009] A filter will let me tag, but not untag",
+  "Hello, did you receive my bugmail?",
+];
+
+function run_test() {
+  // Set duplicate action to be delete duplicates.
+  Services.prefs.setIntPref(
+    "mail.server.default.dup_action",
+    Ci.nsIMsgIncomingServer.deleteDups
+  );
+  // add 3 messages, 2 of which are duplicates.
+  gPOP3Pump.files = [
+    "../../../data/bugmail1",
+    "../../../data/draft1",
+    "../../../data/bugmail1",
+  ];
+  gPOP3Pump.onDone = continueTest;
+  do_test_pending();
+  gPOP3Pump.run();
+}
+
+function continueTest() {
+  // get message headers for the inbox folder
+  var msgCount = 0;
+  for (let hdr of localAccountUtils.inboxFolder.msgDatabase.enumerateMessages()) {
+    Assert.equal(hdr.subject, testSubjects[msgCount++]);
+  }
+  Assert.equal(msgCount, 2);
+  gPOP3Pump = null;
+  do_test_finished();
+}