1 files changed, 44 insertions, 0 deletions
diff --git a/netwerk/test/unit/test_brotli_http.js b/netwerk/test/unit/test_brotli_http.js
new file mode 100644
index 0000000000..5c3d2452f0
--- /dev/null
+++ b/netwerk/test/unit/test_brotli_http.js
@@ -0,0 +1,44 @@
+// This test exists mostly as documentation that
+// Firefox can load brotli files over HTTP if we set the proper pref.
+
+"use strict";
+
+function contentHandler(metadata, response) {
+  response.setHeader("Content-Type", "text/plain", false);
+  response.setHeader("Content-Encoding", "br", false);
+  response.write("\x0b\x02\x80hello\x03");
+}
+
+const { HttpServer } = ChromeUtils.import("resource://testing-common/httpd.js");
+
+XPCOMUtils.defineLazyGetter(this, "URL", function() {
+  return "http://localhost:" + httpServer.identity.primaryPort + "/content";
+});
+
+var httpServer = null;
+
+add_task(async function test() {
+  httpServer = new HttpServer();
+  httpServer.registerPathHandler("/content", contentHandler);
+  httpServer.start(-1);
+  Services.prefs.setCharPref(
+    "network.http.accept-encoding",
+    "gzip, deflate, br"
+  );
+
+  let chan = NetUtil.newChannel({ uri: URL, loadUsingSystemPrincipal: true });
+  let [, buff] = await new Promise(resolve => {
+    chan.asyncOpen(
+      new ChannelListener(
+        (req, buff) => {
+          resolve([req, buff]);
+        },
+        null,
+        CL_IGNORE_CL
+      )
+    );
+  });
+  equal(buff, "hello");
+  Services.prefs.clearUserPref("network.http.accept-encoding");
+  await httpServer.stop();
+});