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-rw-r--r--js/xpconnect/tests/unit/test_unload.js28
1 files changed, 28 insertions, 0 deletions
diff --git a/js/xpconnect/tests/unit/test_unload.js b/js/xpconnect/tests/unit/test_unload.js
new file mode 100644
index 0000000000..13e2e0c63e
--- /dev/null
+++ b/js/xpconnect/tests/unit/test_unload.js
@@ -0,0 +1,28 @@
+/* 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 run_test() {
+ var scope1 = {};
+ var exports1 = ChromeUtils.import("resource://test/TestBlob.jsm", scope1);
+
+ var scope2 = {};
+ var exports2 = ChromeUtils.import("resource://test/TestBlob.jsm", scope2);
+
+ Assert.ok(exports1 === exports2);
+ Assert.ok(scope1.TestBlob === scope2.TestBlob);
+
+ Cu.unload("resource://test/TestBlob.jsm");
+
+ var scope3 = {};
+ var exports3 = ChromeUtils.import("resource://test/TestBlob.jsm", scope3);
+
+ Assert.equal(false, exports1 === exports3);
+ Assert.equal(false, scope1.TestBlob === scope3.TestBlob);
+
+ // When the jsm was unloaded, the value of all its global's properties were
+ // set to undefined. While it must be safe (not crash) to call into the
+ // module, we expect it to throw an error (e.g., when trying to use Ci).
+ try { scope1.TestBlob.doTest(() => {}); } catch (e) {}
+ try { scope3.TestBlob.doTest(() => {}); } catch (e) {}
+}