netwerk/test/unit/test_channel_long_domain.js

   1 // Tests that domains longer than 253 characters fail to load when pref is true
   2
   3 add_task(async function test_long_domain_fails() {
   4   let domain = "http://" + "a".repeat(254);
   5
   6   let req = await new Promise(resolve => {
   7     let chan = NetUtil.newChannel({
   8       uri: domain,
   9       loadUsingSystemPrincipal: true,
  10     });
  11     chan.asyncOpen(new ChannelListener(resolve, null, CL_EXPECT_FAILURE));
  12   });
  13   Assert.equal(req.status, Cr.NS_ERROR_UNKNOWN_HOST, "Request should fail");
  14 });