third_party/web_platform_tests/fetch/api/request/request-consume.html

<!doctype html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Request consume</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="Canon Research France" href="https://www.crf.canon.fr">
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <script src="../resources/utils.js"></script>
  </head>
  <body>
    <script>
    function checkBodyText(request, expectedBody) {
      return request.text().then(function(bodyAsText) {
        assert_equals(bodyAsText, expectedBody, "Retrieve and verify request's body");
        assert_true(request.bodyUsed, "body as text: bodyUsed turned true");
      });
    }

    function checkBodyBlob(request, expectedBody, checkContentType) {
      return request.blob().then(function(bodyAsBlob) {
        if (checkContentType)
          assert_equals(bodyAsBlob.type, "text/plain", "Blob body type should be computed from the request Content-Type");

        var promise = new Promise(function (resolve, reject) {
          var reader = new FileReader();
          reader.onload = function(evt) {
            resolve(reader.result)
          };
          reader.onerror = function() {
            reject("Blob's reader failed");
          };
          reader.readAsText(bodyAsBlob);
        });
        return promise.then(function(body) {
          assert_equals(body, expectedBody, "Retrieve and verify request's body");
          assert_true(request.bodyUsed, "body as blob: bodyUsed turned true");
        });
      });
    }

    function checkBodyArrayBuffer(request, expectedBody) {
      return request.arrayBuffer().then(function(bodyAsArrayBuffer) {
        validateBufferFromString(bodyAsArrayBuffer, expectedBody, "Retrieve and verify request's body");
        assert_true(request.bodyUsed, "body as arrayBuffer: bodyUsed turned true");
      });
    }

    function checkBodyJSON(request, expectedBody) {
      return request.json().then(function(bodyAsJSON) {
        var strBody = JSON.stringify(bodyAsJSON)
        assert_equals(strBody, expectedBody, "Retrieve and verify request's body");
        assert_true(request.bodyUsed, "body as json: bodyUsed turned true");
      });
    }

    function checkBodyFormData(request, expectedBody) {
      return request.formData().then(function(bodyAsFormData) {
        assert_true(bodyAsFormData instanceof FormData, "Should receive a FormData");
        assert_true(request.bodyUsed, "body as formData: bodyUsed turned true");
     });
    }

    function checkRequestBody(body, expected, bodyType) {
      promise_test(function(test) {
        var request = new Request("", {"method": "POST", "body": body, "headers": [["Content-Type", "text/PLAIN"]] });
        assert_false(request.bodyUsed, "bodyUsed is false at init");
        return checkBodyText(request, expected);
      }, "Consume " + bodyType  + " request's body as text");
/* Cobalt doesn't support Blob request body
      promise_test(function(test) {
        var request = new Request("", {"method": "POST", "body": body });
        assert_false(request.bodyUsed, "bodyUsed is false at init");
        return checkBodyBlob(request, expected);
      }, "Consume " + bodyType  + " request's body as blob");
*/
      promise_test(function(test) {
        var request = new Request("", {"method": "POST", "body": body });
        assert_false(request.bodyUsed, "bodyUsed is false at init");
        return checkBodyArrayBuffer(request, expected);
      }, "Consume " + bodyType  + " request's body as arrayBuffer");
      promise_test(function(test) {
        var request = new Request("", {"method": "POST", "body": body });
        assert_false(request.bodyUsed, "bodyUsed is false at init");
        return checkBodyJSON(request, expected);
      }, "Consume " + bodyType  + " request's body as JSON");
    }

    var textData = JSON.stringify("This is response's body");
    var blob = new Blob([textData], { "type" : "text/plain" });

    checkRequestBody(textData, textData, "String");

    var string = "\"123456\"";
    function getArrayBuffer() {
        var arrayBuffer = new ArrayBuffer(8);
        var int8Array = new Int8Array(arrayBuffer);
        for (var cptr = 0; cptr < 8; cptr++)
            int8Array[cptr] = string.charCodeAt(cptr);
        return arrayBuffer;
    }

    function getArrayBufferWithZeros() {
        var arrayBuffer = new ArrayBuffer(10);
        var int8Array = new Int8Array(arrayBuffer);
        for (var cptr = 0; cptr < 8; cptr++)
            int8Array[cptr + 1] = string.charCodeAt(cptr);
        return arrayBuffer;
    }

    checkRequestBody(getArrayBuffer(), string, "ArrayBuffer");
    checkRequestBody(new Uint8Array(getArrayBuffer()), string, "Uint8Array");
    checkRequestBody(new Int8Array(getArrayBufferWithZeros(), 1, 8), string, "Int8Array");
    checkRequestBody(new Float32Array(getArrayBuffer()), string, "Float32Array");
    checkRequestBody(new DataView(getArrayBufferWithZeros(), 1, 8), string, "DataView");

/* Cobalt doesn't support FormData request body
    promise_test(function(test) {
      var formData = new FormData();
      formData.append("name", "value")
      var request = new Request("", {"method": "POST", "body": formData });
      assert_false(request.bodyUsed, "bodyUsed is false at init");
      return checkBodyFormData(request, formData);
    }, "Consume FormData request's body as FormData");
*/

    function checkBlobResponseBody(blobBody, blobData, bodyType, checkFunction) {
      promise_test(function(test) {
        var response = new Response(blobBody);
        assert_false(response.bodyUsed, "bodyUsed is false at init");
        return checkFunction(response, blobData);
      }, "Consume blob response's body as " + bodyType);
    }

/* Cobalt doesn't support Blob request body
    checkBlobResponseBody(blob, textData, "blob", checkBodyBlob);
*/
    checkBlobResponseBody(blob, textData, "text", checkBodyText);
    checkBlobResponseBody(blob, textData, "json", checkBodyJSON);
    checkBlobResponseBody(blob, textData, "arrayBuffer", checkBodyArrayBuffer);
/* Cobalt doesn't support Blob request body
    checkBlobResponseBody(new Blob([""]), "", "blob (empty blob as input)", checkBodyBlob);
*/

    var goodJSONValues = ["null", "1", "true", "\"string\""];
    goodJSONValues.forEach(function(value) {
      promise_test(function(test) {
        var request = new Request("", {"method": "POST", "body": value});
        return request.json().then(function(v) {
          assert_equals(v, JSON.parse(value));
        });
      }, "Consume JSON from text: '" + JSON.stringify(value) + "'");
    });

    var badJSONValues = ["undefined", "{", "a", "["];
    badJSONValues.forEach(function(value) {
      promise_test(function(test) {
        var request = new Request("", {"method": "POST", "body": value});
        return promise_rejects(test, new SyntaxError(), request.json());
      }, "Trying to consume bad JSON text as JSON: '" + value + "'");
    });
    </script>
  </body>
</html>