1 files changed, 23 insertions, 0 deletions
diff --git a/toolkit/mozapps/extensions/test/xpcshell/test_signed_long.js b/toolkit/mozapps/extensions/test/xpcshell/test_signed_long.js
new file mode 100644
index 0000000000..2aa76e8ff8
--- /dev/null
+++ b/toolkit/mozapps/extensions/test/xpcshell/test_signed_long.js
@@ -0,0 +1,23 @@
+gUseRealCertChecks = true;
+
+const ID = "123456789012345678901234567890123456789012345678901@somewhere.com";
+
+// Tests that signature verification works correctly on an extension with
+// an ID that does not fit into a certificate CN field.
+add_task(async function test_long_id() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+  await promiseStartupManager();
+
+  Assert.greater(ID.length, 64, "ID is > 64 characters");
+
+  await promiseInstallFile(do_get_file("data/signing_checks/long.xpi"));
+  let addon = await promiseAddonByID(ID);
+
+  Assert.notEqual(addon, null, "Addon install properly");
+  Assert.ok(
+    addon.signedState > AddonManager.SIGNEDSTATE_MISSING,
+    "Signature verification worked properly"
+  );
+
+  await addon.uninstall();
+});