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-rw-r--r--js/xpconnect/tests/unit/test_print_stderr.js14
1 files changed, 14 insertions, 0 deletions
diff --git a/js/xpconnect/tests/unit/test_print_stderr.js b/js/xpconnect/tests/unit/test_print_stderr.js
new file mode 100644
index 0000000000..4c2d87ae7a
--- /dev/null
+++ b/js/xpconnect/tests/unit/test_print_stderr.js
@@ -0,0 +1,14 @@
+/* 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/. */
+
+add_task(async function() {
+ Assert.throws(
+ () => Cu.printStderr(),
+ /Not enough arguments/,
+ "Without argument printStderr throws"
+ );
+
+ const types = ["", "foo", 42, true, null, {foo: "bar"}];
+ types.forEach(type => Cu.printStderr(type));
+});