1 files changed, 37 insertions, 0 deletions
diff --git a/modules/libjar/test/unit/test_bug597702.js b/modules/libjar/test/unit/test_bug597702.js
new file mode 100644
index 0000000000..d7ffe6d360
--- /dev/null
+++ b/modules/libjar/test/unit/test_bug597702.js
@@ -0,0 +1,37 @@
+/* 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/. */
+
+const { NetUtil } = ChromeUtils.importESModule(
+  "resource://gre/modules/NetUtil.sys.mjs"
+);
+
+// Check that reading non existant inner jars results in the right error
+
+function run_test() {
+  var file = do_get_file("data/test_bug597702.zip");
+  var outerJarBase = "jar:" + Services.io.newFileURI(file).spec + "!/";
+  var goodSpec = "jar:" + outerJarBase + "inner.jar!/hello";
+  var badSpec = "jar:" + outerJarBase + "jar_that_isnt_in_the.jar!/hello";
+  var goodChannel = NetUtil.newChannel({
+    uri: goodSpec,
+    loadUsingSystemPrincipal: true,
+  });
+  var badChannel = NetUtil.newChannel({
+    uri: badSpec,
+    loadUsingSystemPrincipal: true,
+  });
+
+  try {
+    goodChannel.open();
+  } catch (e) {
+    do_throw("Failed to open file in inner jar");
+  }
+
+  try {
+    badChannel.open();
+    do_throw("Failed to report that file doesn't exist");
+  } catch (e) {
+    Assert.ok(e.name == "NS_ERROR_FILE_NOT_FOUND");
+  }
+}