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