1 files changed, 86 insertions, 0 deletions
diff --git a/netwerk/test/unit/test_httpsuspend.js b/netwerk/test/unit/test_httpsuspend.js
new file mode 100644
index 0000000000..581caf906e
--- /dev/null
+++ b/netwerk/test/unit/test_httpsuspend.js
@@ -0,0 +1,86 @@
+// This file ensures that suspending a channel directly after opening it
+// suspends future notifications correctly.
+
+"use strict";
+
+const { HttpServer } = ChromeUtils.importESModule(
+  "resource://testing-common/httpd.sys.mjs"
+);
+
+ChromeUtils.defineLazyGetter(this, "URL", function () {
+  return "http://localhost:" + httpserv.identity.primaryPort;
+});
+
+const MIN_TIME_DIFFERENCE = 3000;
+const RESUME_DELAY = 5000;
+
+var listener = {
+  _lastEvent: 0,
+  _gotData: false,
+
+  QueryInterface: ChromeUtils.generateQI([
+    "nsIStreamListener",
+    "nsIRequestObserver",
+  ]),
+
+  onStartRequest(request) {
+    this._lastEvent = Date.now();
+    request.QueryInterface(Ci.nsIRequest);
+
+    // Insert a delay between this and the next callback to ensure message buffering
+    // works correctly
+    request.suspend();
+    request.suspend();
+    do_timeout(RESUME_DELAY, function () {
+      request.resume();
+    });
+    do_timeout(RESUME_DELAY + 1000, function () {
+      request.resume();
+    });
+  },
+
+  onDataAvailable(request, stream, offset, count) {
+    Assert.ok(Date.now() - this._lastEvent >= MIN_TIME_DIFFERENCE);
+    read_stream(stream, count);
+
+    // Ensure that suspending and resuming inside a callback works correctly
+    request.suspend();
+    request.suspend();
+    request.resume();
+    request.resume();
+
+    this._gotData = true;
+  },
+
+  onStopRequest(request, status) {
+    Assert.ok(this._gotData);
+    httpserv.stop(do_test_finished);
+  },
+};
+
+function makeChan(url) {
+  return NetUtil.newChannel({
+    uri: url,
+    loadUsingSystemPrincipal: true,
+  }).QueryInterface(Ci.nsIHttpChannel);
+}
+
+var httpserv = null;
+
+function run_test() {
+  httpserv = new HttpServer();
+  httpserv.registerPathHandler("/woo", data);
+  httpserv.start(-1);
+
+  var chan = makeChan(URL + "/woo");
+  chan.QueryInterface(Ci.nsIRequest);
+  chan.asyncOpen(listener);
+
+  do_test_pending();
+}
+
+function data(metadata, response) {
+  let httpbody = "0123456789";
+  response.setHeader("Content-Type", "text/plain", false);
+  response.bodyOutputStream.write(httpbody, httpbody.length);
+}