| <!doctype html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>Request Keepalive Quota Tests</title> |
| <meta name="help" href="https://fetch.spec.whatwg.org/#request"> |
| <meta name="help" href="https://fetch.spec.whatwg.org/#body-mixin"> |
| <meta name="author" title="Microsoft Edge" href="https://www.microsoft.com"> |
| <meta name="timeout" content="long"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| </head> |
| <body> |
| <script> |
| "use strict"; |
| |
| // We want to ensure that our keepalive requests hang slightly before completing so we can validate |
| // the effects of a rolling quota. To do this we will utilize trickle.py with a 1s delay. This should |
| // prevent any of the Fetch's from finishing in this window. |
| var trickleURL = "../resources/trickle.py?count=1&ms="; |
| var standardDelay = 1000; |
| |
| // We should expect 64KiB of rolling quota for any type of keep-alive request sent. |
| var expectedQuota = 65536; |
| |
| function CreateKeepAliveRequest(delay, bodySize) { |
| // Create a body of the specified size that's filled with *'s |
| var requestBody = "*".repeat(bodySize); |
| return new Request(trickleURL+delay, {keepalive: true, body: requestBody, method: "POST"}); |
| } |
| |
| // Test 1 Byte |
| promise_test(function(test) { |
| return fetch(CreateKeepAliveRequest(0 /* delay */, 1 /* bodySize */)); |
| }, "A Keep-Alive fetch() with a small body should succeed."); |
| |
| // Test Quota full limit |
| promise_test(function(test) { |
| return fetch(CreateKeepAliveRequest(0 /* delay */, expectedQuota)); |
| }, "A Keep-Alive fetch() with a body at the Quota Limit should succeed."); |
| |
| // Test Quota + 1 Byte |
| promise_test(function(test) { |
| return promise_rejects(test, new TypeError(), fetch(CreateKeepAliveRequest(0 /* delay */, expectedQuota + 1))); |
| }, "A Keep-Alive fetch() with a body over the Quota Limit should reject."); |
| |
| // Test the Quota becomes available upon promise completion. |
| promise_test(function (test) { |
| // Fill our Quota then try to send a second fetch. |
| var firstFetch = fetch(CreateKeepAliveRequest(standardDelay, expectedQuota)).then(function(response) { |
| // Now validate that we can send another Keep-Alive fetch for the full size of the quota. |
| return fetch(CreateKeepAliveRequest(0 /* delay */, expectedQuota)); |
| }); |
| |
| return firstFetch; |
| }, "A Keep-Alive fetch() should return it's allocated Quota upon promise resolution."); |
| |
| // Ensure only the correct amount of Quota becomes available when a fetch completes. |
| promise_test(function(test) { |
| var lastFetchSucceeded = false; |
| // Create a fetch that uses all but 1 Byte of the Quota and runs for 2x as long as the other requests. |
| var firstFetch = fetch(CreateKeepAliveRequest(standardDelay * 2, expectedQuota - 1)).then(function(response) { |
| // This should be our last completing fetch(). We need to validate that the last fetch we sent out actually |
| // completed. |
| assert_true(lastFetchSucceeded, "Out last fetch after gaining Quota back should have succeeded."); |
| }); |
| |
| // Now create a single Byte request that will complete quicker. |
| fetch(CreateKeepAliveRequest(standardDelay, 1 /* bodySize */)).then(function(response) { |
| // We shouldn't be able to create a 2 Byte request right now as only 1 Byte should have freed up. |
| assert_throws(new TypeError(), fetch(CreateKeepAliveRequest(0 /* delay */, 2 /* bodySize */)), "Only 1 Byte of Quota should be available right now."); |
| |
| // Now validate that we can send another Keep-Alive fetch for just 1 Byte. |
| fetch(CreateKeepAliveRequest(0 /* delay */, 1 /* bodySize */)).then(function(response) { |
| // Flag we got a response from this request. |
| lastFetchSucceeded = true; |
| }); |
| }); |
| |
| return firstFetch; |
| }, "A Keep-Alive fetch() should return only it's allocated Quota upon promise resolution."); |
| |
| // Test rejecting a fetch() after the quota is used up. |
| promise_test(function (test) { |
| // Fill our Quota then try to send a second fetch. |
| fetch(CreateKeepAliveRequest(standardDelay, expectedQuota)); |
| |
| return promise_rejects(test, new TypeError(), fetch(CreateKeepAliveRequest(0 /* delay */, 1 /* bodySize */))); |
| }, "A Keep-Alive fetch() should not be allowed if the Quota is used up."); |
| |
| </script> |
| </body> |
| </html> |