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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Response consume empty bodies</title>
<meta name="help" href="https://fetch.spec.whatwg.org/#response">
<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>
</head>
<body>
<script>
function checkBodyText(test, response) {
return response.text().then(function(bodyAsText) {
assert_equals(bodyAsText, "", "Resolved value should be empty");
assert_false(response.bodyUsed);
});
}
function checkBodyBlob(test, response) {
return response.blob().then(function(bodyAsBlob) {
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, "", "Resolved value should be empty");
assert_false(response.bodyUsed);
});
});
}
function checkBodyArrayBuffer(test, response) {
return response.arrayBuffer().then(function(bodyAsArrayBuffer) {
assert_equals(bodyAsArrayBuffer.byteLength, 0, "Resolved value should be empty");
assert_false(response.bodyUsed);
});
}
function checkBodyJSON(test, response) {
return response.json().then(
function(bodyAsJSON) {
assert_unreached("JSON parsing should fail");
},
function() {
assert_false(response.bodyUsed);
});
}
function checkBodyFormData(test, response) {
return response.formData().then(function(bodyAsFormData) {
assert_true(bodyAsFormData instanceof FormData, "Should receive a FormData");
assert_false(response.bodyUsed);
});
}
function checkBodyFormDataError(test, response) {
return promise_rejects_js(test, TypeError, response.formData()).then(function() {
assert_false(response.bodyUsed);
});
}
function checkResponseWithNoBody(bodyType, checkFunction, headers = []) {
promise_test(function(test) {
var response = new Response(undefined, { "headers": headers });
assert_false(response.bodyUsed);
return checkFunction(test, response);
}, "Consume response's body as " + bodyType);
}
checkResponseWithNoBody("text", checkBodyText);
checkResponseWithNoBody("blob", checkBodyBlob);
checkResponseWithNoBody("arrayBuffer", checkBodyArrayBuffer);
checkResponseWithNoBody("json (error case)", checkBodyJSON);
checkResponseWithNoBody("formData with correct multipart type (error case)", checkBodyFormDataError, [["Content-Type", 'multipart/form-data; boundary="boundary"']]);
checkResponseWithNoBody("formData with correct urlencoded type", checkBodyFormData, [["Content-Type", "application/x-www-form-urlencoded;charset=UTF-8"]]);
checkResponseWithNoBody("formData without correct type (error case)", checkBodyFormDataError);
function checkResponseWithEmptyBody(bodyType, body, asText) {
promise_test(function(test) {
var response = new Response(body);
assert_false(response.bodyUsed, "bodyUsed is false at init");
if (asText) {
return response.text().then(function(bodyAsString) {
assert_equals(bodyAsString.length, 0, "Resolved value should be empty");
assert_true(response.bodyUsed, "bodyUsed is true after being consumed");
});
}
return response.arrayBuffer().then(function(bodyAsArrayBuffer) {
assert_equals(bodyAsArrayBuffer.byteLength, 0, "Resolved value should be empty");
assert_true(response.bodyUsed, "bodyUsed is true after being consumed");
});
}, "Consume empty " + bodyType + " response body as " + (asText ? "text" : "arrayBuffer"));
}
checkResponseWithEmptyBody("blob", new Blob([], { "type" : "text/plain" }), false);
checkResponseWithEmptyBody("text", "", false);
checkResponseWithEmptyBody("blob", new Blob([], { "type" : "text/plain" }), true);
checkResponseWithEmptyBody("text", "", true);
checkResponseWithEmptyBody("URLSearchParams", new URLSearchParams(""), true);
checkResponseWithEmptyBody("FormData", new FormData(), true);
checkResponseWithEmptyBody("ArrayBuffer", new ArrayBuffer(), true);
</script>
</body>
</html>
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