| <!doctype html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>Response clone</title> |
| <meta name="help" href="https://fetch.spec.whatwg.org/#response"> |
| <meta name="author" title="Canon Research France" href="https://www.crf.canon.fr"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| </head> |
| <body> |
| <script src="../resources/utils.js"></script> |
| <script> |
| var defaultValues = { "type" : "default", |
| "url" : "", |
| "ok" : true, |
| "status" : 200, |
| "statusText" : "OK" |
| }; |
| |
| var response = new Response(); |
| var clonedResponse = response.clone(); |
| test(function() { |
| for (var attributeName in defaultValues) { |
| var expectedValue = defaultValues[attributeName]; |
| assert_equals(clonedResponse[attributeName], expectedValue, |
| "Expect default response." + attributeName + " is " + expectedValue); |
| } |
| }, "Check Response's clone with default values, without body"); |
| |
| var body = "This is response body"; |
| var headersInit = { "name" : "value" }; |
| var responseInit = { "status" : 200, |
| "statusText" : "GOOD", |
| "headers" : headersInit |
| }; |
| var response = new Response(body, responseInit); |
| var clonedResponse = response.clone(); |
| test(function() { |
| assert_equals(clonedResponse.status, responseInit["status"], |
| "Expect response.status is " + responseInit["status"]); |
| assert_equals(clonedResponse.statusText, responseInit["statusText"], |
| "Expect response.statusText is " + responseInit["statusText"]); |
| assert_equals(clonedResponse.headers.get("name"), "value", |
| "Expect response.headers has name:value header"); |
| }, "Check Response's clone has the expected attribute values"); |
| |
| promise_test(function(test) { |
| return validateStreamFromString(response.body.getReader(), body); |
| }, "Check orginal response's body after cloning"); |
| |
| promise_test(function(test) { |
| return validateStreamFromString(clonedResponse.body.getReader(), body); |
| }, "Check cloned response's body"); |
| |
| promise_test(function(test) { |
| var disturbedResponse = new Response("data"); |
| return disturbedResponse.text().then(function() { |
| assert_true(disturbedResponse.bodyUsed, "response is disturbed"); |
| assert_throws(new TypeError() , function() { disturbedResponse.clone(); }, |
| "Expect TypeError exception"); |
| }); |
| }, "Cannot clone a disturbed response"); |
| |
| promise_test(function(t) { |
| var clone; |
| var result; |
| var response; |
| return fetch('../resources/trickle.py?count=2&delay=100').then(function(res) { |
| clone = res.clone(); |
| response = res; |
| return clone.arrayBuffer(); |
| }).then(function(r) { |
| assert_equals(r.byteLength, 26); |
| result = r; |
| return response.arrayBuffer(); |
| }).then(function(r) { |
| assert_array_equals(r, result, "cloned responses should provide the same data"); |
| }); |
| }, 'Cloned responses should provide the same data'); |
| |
| promise_test(function(t) { |
| var clone; |
| return fetch('../resources/trickle.py?count=2&delay=100').then(function(res) { |
| clone = res.clone(); |
| res.body.cancel(); |
| assert_true(res.bodyUsed); |
| assert_false(clone.bodyUsed); |
| return clone.arrayBuffer(); |
| }).then(function(r) { |
| assert_equals(r.byteLength, 26); |
| assert_true(clone.bodyUsed); |
| }); |
| }, 'Cancelling stream should not affect cloned one'); |
| |
| function testReadableStreamClone(initialBuffer, bufferType) |
| { |
| promise_test(function(test) { |
| var response = new Response(new ReadableStream({start : function(controller) { |
| controller.enqueue(initialBuffer); |
| controller.close(); |
| }})); |
| |
| var clone = response.clone(); |
| var stream1 = response.body; |
| var stream2 = clone.body; |
| |
| var buffer; |
| return stream1.getReader().read().then(function(data) { |
| assert_false(data.done); |
| assert_true(data.value === initialBuffer, "Buffer of being-cloned response stream is the same as the original buffer"); |
| return stream2.getReader().read(); |
| }).then(function(data) { |
| assert_false(data.done); |
| assert_array_equals(data.value, initialBuffer, "Cloned buffer chunks have the same content"); |
| assert_equals(Object.getPrototypeOf(data.value), Object.getPrototypeOf(initialBuffer), "Cloned buffers have the same type"); |
| if (ReadableStreamTee.length > 1) { |
| // ReadableStreamTee supports cloning for stream2 |
| assert_true(data.value !== initialBuffer, "Buffer of cloned response stream is a clone of the original buffer"); |
| } |
| }); |
| }, "Check response clone use structureClone for teed ReadableStreams (" + bufferType + "chunk)"); |
| } |
| |
| var arrayBuffer = new ArrayBuffer(16); |
| testReadableStreamClone(new Int8Array(arrayBuffer, 1), "Int8Array"); |
| testReadableStreamClone(new Int16Array(arrayBuffer, 2, 2), "Int16Array"); |
| testReadableStreamClone(new Int32Array(arrayBuffer), "Int32Array"); |
| testReadableStreamClone(arrayBuffer, "ArrayBuffer"); |
| testReadableStreamClone(new Uint8Array(arrayBuffer), "Uint8Array"); |
| testReadableStreamClone(new Uint8ClampedArray(arrayBuffer), "Uint8ClampedArray"); |
| testReadableStreamClone(new Uint16Array(arrayBuffer, 2), "Uint16Array"); |
| testReadableStreamClone(new Uint32Array(arrayBuffer), "Uint32Array"); |
| testReadableStreamClone(new Float32Array(arrayBuffer), "Float32Array"); |
| testReadableStreamClone(new Float64Array(arrayBuffer), "Float64Array"); |
| testReadableStreamClone(new DataView(arrayBuffer, 2, 8), "DataView"); |
| </script> |
| </body> |
| </html> |
