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denoland-deno/cli/tests/unit/fetch_test.ts
Luca Casonato 430b63c2c4
perf: improve async op santizer speed and accuracy (#20501)
This commit improves async op sanitizer speed by only delaying metrics
collection if there are pending ops. This
results in a speedup of around 30% for small CPU bound unit tests.

It performs this check and possible delay on every collection now,
fixing an issue with parent test leaks into steps.
2023-09-16 07:48:31 +02:00

2006 lines
56 KiB
TypeScript

// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
import {
assert,
assertEquals,
assertRejects,
deferred,
delay,
fail,
unimplemented,
} from "./test_util.ts";
import { Buffer } from "../../../test_util/std/io/buffer.ts";
const listenPort = 4506;
Deno.test(
{ permissions: { net: true } },
async function fetchRequiresOneArgument() {
await assertRejects(
fetch as unknown as () => Promise<void>,
TypeError,
);
},
);
Deno.test({ permissions: { net: true } }, async function fetchProtocolError() {
await assertRejects(
async () => {
await fetch("ftp://localhost:21/a/file");
},
TypeError,
"not supported",
);
});
function findClosedPortInRange(
minPort: number,
maxPort: number,
): number | never {
let port = minPort;
// If we hit the return statement of this loop
// that means that we did not throw an
// AddrInUse error when we executed Deno.listen.
while (port < maxPort) {
try {
const listener = Deno.listen({ port });
listener.close();
return port;
} catch (_e) {
port++;
}
}
unimplemented(
`No available ports between ${minPort} and ${maxPort} to test fetch`,
);
}
Deno.test(
// TODO(bartlomieju): reenable this test
// https://github.com/denoland/deno/issues/18350
{ ignore: Deno.build.os === "windows", permissions: { net: true } },
async function fetchConnectionError() {
const port = findClosedPortInRange(4000, 9999);
await assertRejects(
async () => {
await fetch(`http://localhost:${port}`);
},
TypeError,
"error trying to connect",
);
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchDnsError() {
await assertRejects(
async () => {
await fetch("http://nil/");
},
TypeError,
"error trying to connect",
);
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchInvalidUriError() {
await assertRejects(
async () => {
await fetch("http://<invalid>/");
},
TypeError,
);
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchMalformedUriError() {
await assertRejects(
async () => {
const url = new URL("http://{{google/");
await fetch(url);
},
TypeError,
);
},
);
Deno.test({ permissions: { net: true } }, async function fetchJsonSuccess() {
const response = await fetch("http://localhost:4545/assets/fixture.json");
const json = await response.json();
assertEquals(json.name, "deno");
});
Deno.test({ permissions: { net: false } }, async function fetchPerm() {
await assertRejects(async () => {
await fetch("http://localhost:4545/assets/fixture.json");
}, Deno.errors.PermissionDenied);
});
Deno.test({ permissions: { net: true } }, async function fetchUrl() {
const response = await fetch("http://localhost:4545/assets/fixture.json");
assertEquals(response.url, "http://localhost:4545/assets/fixture.json");
const _json = await response.json();
});
Deno.test({ permissions: { net: true } }, async function fetchURL() {
const response = await fetch(
new URL("http://localhost:4545/assets/fixture.json"),
);
assertEquals(response.url, "http://localhost:4545/assets/fixture.json");
const _json = await response.json();
});
Deno.test({ permissions: { net: true } }, async function fetchHeaders() {
const response = await fetch("http://localhost:4545/assets/fixture.json");
const headers = response.headers;
assertEquals(headers.get("Content-Type"), "application/json");
const _json = await response.json();
});
Deno.test({ permissions: { net: true } }, async function fetchBlob() {
const response = await fetch("http://localhost:4545/assets/fixture.json");
const headers = response.headers;
const blob = await response.blob();
assertEquals(blob.type, headers.get("Content-Type"));
assertEquals(blob.size, Number(headers.get("Content-Length")));
});
Deno.test(
{ permissions: { net: true } },
async function fetchBodyUsedReader() {
const response = await fetch(
"http://localhost:4545/assets/fixture.json",
);
assert(response.body !== null);
const reader = response.body.getReader();
// Getting a reader should lock the stream but does not consume the body
// so bodyUsed should not be true
assertEquals(response.bodyUsed, false);
reader.releaseLock();
await response.json();
assertEquals(response.bodyUsed, true);
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchBodyUsedCancelStream() {
const response = await fetch(
"http://localhost:4545/assets/fixture.json",
);
assert(response.body !== null);
assertEquals(response.bodyUsed, false);
const promise = response.body.cancel();
assertEquals(response.bodyUsed, true);
await promise;
},
);
Deno.test({ permissions: { net: true } }, async function fetchAsyncIterator() {
const response = await fetch("http://localhost:4545/assets/fixture.json");
const headers = response.headers;
assert(response.body !== null);
let total = 0;
for await (const chunk of response.body) {
assert(chunk instanceof Uint8Array);
total += chunk.length;
}
assertEquals(total, Number(headers.get("Content-Length")));
});
Deno.test({ permissions: { net: true } }, async function fetchBodyReader() {
const response = await fetch("http://localhost:4545/assets/fixture.json");
const headers = response.headers;
assert(response.body !== null);
const reader = response.body.getReader();
let total = 0;
while (true) {
const { done, value } = await reader.read();
if (done) break;
assert(value);
assert(value instanceof Uint8Array);
total += value.length;
}
assertEquals(total, Number(headers.get("Content-Length")));
});
Deno.test(
{ permissions: { net: true } },
async function fetchBodyReaderBigBody() {
const data = "a".repeat(10 << 10); // 10mb
const response = await fetch("http://localhost:4545/echo_server", {
method: "POST",
body: data,
});
assert(response.body !== null);
const reader = await response.body.getReader();
let total = 0;
while (true) {
const { done, value } = await reader.read();
if (done) break;
assert(value);
total += value.length;
}
assertEquals(total, data.length);
},
);
Deno.test({ permissions: { net: true } }, async function responseClone() {
const response = await fetch("http://localhost:4545/assets/fixture.json");
const response1 = response.clone();
assert(response !== response1);
assertEquals(response.status, response1.status);
assertEquals(response.statusText, response1.statusText);
const u8a = new Uint8Array(await response.arrayBuffer());
const u8a1 = new Uint8Array(await response1.arrayBuffer());
for (let i = 0; i < u8a.byteLength; i++) {
assertEquals(u8a[i], u8a1[i]);
}
});
Deno.test(
{ permissions: { net: true } },
async function fetchMultipartFormDataSuccess() {
const response = await fetch(
"http://localhost:4545/multipart_form_data.txt",
);
const formData = await response.formData();
assert(formData.has("field_1"));
assertEquals(formData.get("field_1")!.toString(), "value_1 \r\n");
assert(formData.has("field_2"));
const file = formData.get("field_2") as File;
assertEquals(file.name, "file.js");
assertEquals(await file.text(), `console.log("Hi")`);
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchMultipartFormBadContentType() {
const response = await fetch(
"http://localhost:4545/multipart_form_bad_content_type",
);
assert(response.body !== null);
await assertRejects(
async () => {
await response.formData();
},
TypeError,
"Body can not be decoded as form data",
);
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchURLEncodedFormDataSuccess() {
const response = await fetch(
"http://localhost:4545/subdir/form_urlencoded.txt",
);
const formData = await response.formData();
assert(formData.has("field_1"));
assertEquals(formData.get("field_1")!.toString(), "Hi");
assert(formData.has("field_2"));
assertEquals(formData.get("field_2")!.toString(), "<Deno>");
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchInitFormDataBinaryFileBody() {
// Some random bytes
// deno-fmt-ignore
const binaryFile = new Uint8Array([108,2,0,0,145,22,162,61,157,227,166,77,138,75,180,56,119,188,177,183]);
const response = await fetch("http://localhost:4545/echo_multipart_file", {
method: "POST",
body: binaryFile,
});
const resultForm = await response.formData();
const resultFile = resultForm.get("file") as File;
assertEquals(resultFile.type, "application/octet-stream");
assertEquals(resultFile.name, "file.bin");
assertEquals(new Uint8Array(await resultFile.arrayBuffer()), binaryFile);
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchInitFormDataMultipleFilesBody() {
const files = [
{
// deno-fmt-ignore
content: new Uint8Array([137,80,78,71,13,10,26,10, 137, 1, 25]),
type: "image/png",
name: "image",
fileName: "some-image.png",
},
{
// deno-fmt-ignore
content: new Uint8Array([108,2,0,0,145,22,162,61,157,227,166,77,138,75,180,56,119,188,177,183]),
name: "file",
fileName: "file.bin",
expectedType: "application/octet-stream",
},
{
content: new TextEncoder().encode("deno land"),
type: "text/plain",
name: "text",
fileName: "deno.txt",
},
];
const form = new FormData();
form.append("field", "value");
for (const file of files) {
form.append(
file.name,
new Blob([file.content], { type: file.type }),
file.fileName,
);
}
const response = await fetch("http://localhost:4545/echo_server", {
method: "POST",
body: form,
});
const resultForm = await response.formData();
assertEquals(form.get("field"), resultForm.get("field"));
for (const file of files) {
const inputFile = form.get(file.name) as File;
const resultFile = resultForm.get(file.name) as File;
assertEquals(inputFile.size, resultFile.size);
assertEquals(inputFile.name, resultFile.name);
assertEquals(file.expectedType || file.type, resultFile.type);
assertEquals(
new Uint8Array(await resultFile.arrayBuffer()),
file.content,
);
}
},
);
Deno.test(
{
permissions: { net: true },
},
async function fetchWithRedirection() {
const response = await fetch("http://localhost:4546/assets/hello.txt");
assertEquals(response.status, 200);
assertEquals(response.statusText, "OK");
assertEquals(response.url, "http://localhost:4545/assets/hello.txt");
const body = await response.text();
assert(body.includes("Hello world!"));
},
);
Deno.test(
{
permissions: { net: true },
},
async function fetchWithRelativeRedirection() {
const response = await fetch(
"http://localhost:4545/run/001_hello.js",
);
assertEquals(response.status, 200);
assertEquals(response.statusText, "OK");
const body = await response.text();
assert(body.includes("Hello"));
},
);
Deno.test(
{
permissions: { net: true },
},
async function fetchWithRelativeRedirectionUrl() {
const cases = [
["end", "http://localhost:4550/a/b/end"],
["/end", "http://localhost:4550/end"],
];
for (const [loc, redUrl] of cases) {
const response = await fetch("http://localhost:4550/a/b/c", {
headers: new Headers([["x-location", loc]]),
});
assertEquals(response.url, redUrl);
assertEquals(response.redirected, true);
assertEquals(response.status, 404);
assertEquals(await response.text(), "");
}
},
);
Deno.test(
{
permissions: { net: true },
},
async function fetchWithInfRedirection() {
await assertRejects(
() => fetch("http://localhost:4549"),
TypeError,
"redirect",
);
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchInitStringBody() {
const data = "Hello World";
const response = await fetch("http://localhost:4545/echo_server", {
method: "POST",
body: data,
});
const text = await response.text();
assertEquals(text, data);
assert(response.headers.get("content-type")!.startsWith("text/plain"));
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchRequestInitStringBody() {
const data = "Hello World";
const req = new Request("http://localhost:4545/echo_server", {
method: "POST",
body: data,
});
const response = await fetch(req);
const text = await response.text();
assertEquals(text, data);
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchSeparateInit() {
// related to: https://github.com/denoland/deno/issues/10396
const req = new Request("http://localhost:4545/run/001_hello.js");
const init = {
method: "GET",
};
req.headers.set("foo", "bar");
const res = await fetch(req, init);
assertEquals(res.status, 200);
await res.text();
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchInitTypedArrayBody() {
const data = "Hello World";
const response = await fetch("http://localhost:4545/echo_server", {
method: "POST",
body: new TextEncoder().encode(data),
});
const text = await response.text();
assertEquals(text, data);
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchInitArrayBufferBody() {
const data = "Hello World";
const response = await fetch("http://localhost:4545/echo_server", {
method: "POST",
body: new TextEncoder().encode(data).buffer,
});
const text = await response.text();
assertEquals(text, data);
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchInitURLSearchParamsBody() {
const data = "param1=value1&param2=value2";
const params = new URLSearchParams(data);
const response = await fetch("http://localhost:4545/echo_server", {
method: "POST",
body: params,
});
const text = await response.text();
assertEquals(text, data);
assert(
response.headers
.get("content-type")!
.startsWith("application/x-www-form-urlencoded"),
);
},
);
Deno.test({ permissions: { net: true } }, async function fetchInitBlobBody() {
const data = "const a = 1";
const blob = new Blob([data], {
type: "text/javascript",
});
const response = await fetch("http://localhost:4545/echo_server", {
method: "POST",
body: blob,
});
const text = await response.text();
assertEquals(text, data);
assert(response.headers.get("content-type")!.startsWith("text/javascript"));
});
Deno.test(
{ permissions: { net: true } },
async function fetchInitFormDataBody() {
const form = new FormData();
form.append("field", "value");
const response = await fetch("http://localhost:4545/echo_server", {
method: "POST",
body: form,
});
const resultForm = await response.formData();
assertEquals(form.get("field"), resultForm.get("field"));
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchInitFormDataBlobFilenameBody() {
const form = new FormData();
form.append("field", "value");
form.append("file", new Blob([new TextEncoder().encode("deno")]));
const response = await fetch("http://localhost:4545/echo_server", {
method: "POST",
body: form,
});
const resultForm = await response.formData();
assertEquals(form.get("field"), resultForm.get("field"));
const file = resultForm.get("file");
assert(file instanceof File);
assertEquals(file.name, "blob");
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchInitFormDataTextFileBody() {
const fileContent = "deno land";
const form = new FormData();
form.append("field", "value");
form.append(
"file",
new Blob([new TextEncoder().encode(fileContent)], {
type: "text/plain",
}),
"deno.txt",
);
const response = await fetch("http://localhost:4545/echo_server", {
method: "POST",
body: form,
});
const resultForm = await response.formData();
assertEquals(form.get("field"), resultForm.get("field"));
const file = form.get("file") as File;
const resultFile = resultForm.get("file") as File;
assertEquals(file.size, resultFile.size);
assertEquals(file.name, resultFile.name);
assertEquals(file.type, resultFile.type);
assertEquals(await file.text(), await resultFile.text());
},
);
Deno.test({ permissions: { net: true } }, async function fetchUserAgent() {
const data = "Hello World";
const response = await fetch("http://localhost:4545/echo_server", {
method: "POST",
body: new TextEncoder().encode(data),
});
assertEquals(response.headers.get("user-agent"), `Deno/${Deno.version.deno}`);
await response.text();
});
function bufferServer(addr: string): Promise<Buffer> {
const [hostname, port] = addr.split(":");
const listener = Deno.listen({
hostname,
port: Number(port),
}) as Deno.Listener;
return listener.accept().then(async (conn: Deno.Conn) => {
const buf = new Buffer();
const p1 = buf.readFrom(conn);
const p2 = conn.write(
new TextEncoder().encode(
"HTTP/1.0 404 Not Found\r\nContent-Length: 2\r\n\r\nNF",
),
);
// Wait for both an EOF on the read side of the socket and for the write to
// complete before closing it. Due to keep-alive, the EOF won't be sent
// until the Connection close (HTTP/1.0) response, so readFrom() can't
// proceed write. Conversely, if readFrom() is async, waiting for the
// write() to complete is not a guarantee that we've read the incoming
// request.
await Promise.all([p1, p2]);
conn.close();
listener.close();
return buf;
});
}
Deno.test(
{
permissions: { net: true },
},
async function fetchRequest() {
const addr = `127.0.0.1:${listenPort}`;
const bufPromise = bufferServer(addr);
const response = await fetch(`http://${addr}/blah`, {
method: "POST",
headers: [
["Hello", "World"],
["Foo", "Bar"],
],
});
await response.arrayBuffer();
assertEquals(response.status, 404);
assertEquals(response.headers.get("Content-Length"), "2");
const actual = new TextDecoder().decode((await bufPromise).bytes());
const expected = [
"POST /blah HTTP/1.1\r\n",
"content-length: 0\r\n",
"hello: World\r\n",
"foo: Bar\r\n",
"accept: */*\r\n",
"accept-language: *\r\n",
`user-agent: Deno/${Deno.version.deno}\r\n`,
"accept-encoding: gzip, br\r\n",
`host: ${addr}\r\n\r\n`,
].join("");
assertEquals(actual, expected);
},
);
Deno.test(
{
permissions: { net: true },
},
async function fetchRequestAcceptHeaders() {
const addr = `127.0.0.1:${listenPort}`;
const bufPromise = bufferServer(addr);
const response = await fetch(`http://${addr}/blah`, {
method: "POST",
headers: [
["Accept", "text/html"],
["Accept-Language", "en-US"],
],
});
await response.arrayBuffer();
assertEquals(response.status, 404);
assertEquals(response.headers.get("Content-Length"), "2");
const actual = new TextDecoder().decode((await bufPromise).bytes());
const expected = [
"POST /blah HTTP/1.1\r\n",
"content-length: 0\r\n",
"accept: text/html\r\n",
"accept-language: en-US\r\n",
`user-agent: Deno/${Deno.version.deno}\r\n`,
"accept-encoding: gzip, br\r\n",
`host: ${addr}\r\n\r\n`,
].join("");
assertEquals(actual, expected);
},
);
Deno.test(
{
permissions: { net: true },
},
async function fetchPostBodyString() {
const addr = `127.0.0.1:${listenPort}`;
const bufPromise = bufferServer(addr);
const body = "hello world";
const response = await fetch(`http://${addr}/blah`, {
method: "POST",
headers: [
["Hello", "World"],
["Foo", "Bar"],
],
body,
});
await response.arrayBuffer();
assertEquals(response.status, 404);
assertEquals(response.headers.get("Content-Length"), "2");
const actual = new TextDecoder().decode((await bufPromise).bytes());
const expected = [
"POST /blah HTTP/1.1\r\n",
"hello: World\r\n",
"foo: Bar\r\n",
"content-type: text/plain;charset=UTF-8\r\n",
"accept: */*\r\n",
"accept-language: *\r\n",
`user-agent: Deno/${Deno.version.deno}\r\n`,
"accept-encoding: gzip, br\r\n",
`host: ${addr}\r\n`,
`content-length: ${body.length}\r\n\r\n`,
body,
].join("");
assertEquals(actual, expected);
},
);
Deno.test(
{
permissions: { net: true },
},
async function fetchPostBodyTypedArray() {
const addr = `127.0.0.1:${listenPort}`;
const bufPromise = bufferServer(addr);
const bodyStr = "hello world";
const body = new TextEncoder().encode(bodyStr);
const response = await fetch(`http://${addr}/blah`, {
method: "POST",
headers: [
["Hello", "World"],
["Foo", "Bar"],
],
body,
});
await response.arrayBuffer();
assertEquals(response.status, 404);
assertEquals(response.headers.get("Content-Length"), "2");
const actual = new TextDecoder().decode((await bufPromise).bytes());
const expected = [
"POST /blah HTTP/1.1\r\n",
"hello: World\r\n",
"foo: Bar\r\n",
"accept: */*\r\n",
"accept-language: *\r\n",
`user-agent: Deno/${Deno.version.deno}\r\n`,
"accept-encoding: gzip, br\r\n",
`host: ${addr}\r\n`,
`content-length: ${body.byteLength}\r\n\r\n`,
bodyStr,
].join("");
assertEquals(actual, expected);
},
);
Deno.test(
{
permissions: { net: true },
},
async function fetchUserSetContentLength() {
const addr = `127.0.0.1:${listenPort}`;
const bufPromise = bufferServer(addr);
const response = await fetch(`http://${addr}/blah`, {
method: "POST",
headers: [
["Content-Length", "10"],
],
});
await response.arrayBuffer();
assertEquals(response.status, 404);
assertEquals(response.headers.get("Content-Length"), "2");
const actual = new TextDecoder().decode((await bufPromise).bytes());
const expected = [
"POST /blah HTTP/1.1\r\n",
"content-length: 0\r\n",
"accept: */*\r\n",
"accept-language: *\r\n",
`user-agent: Deno/${Deno.version.deno}\r\n`,
"accept-encoding: gzip, br\r\n",
`host: ${addr}\r\n\r\n`,
].join("");
assertEquals(actual, expected);
},
);
Deno.test(
{
permissions: { net: true },
},
async function fetchUserSetTransferEncoding() {
const addr = `127.0.0.1:${listenPort}`;
const bufPromise = bufferServer(addr);
const response = await fetch(`http://${addr}/blah`, {
method: "POST",
headers: [
["Transfer-Encoding", "chunked"],
],
});
await response.arrayBuffer();
assertEquals(response.status, 404);
assertEquals(response.headers.get("Content-Length"), "2");
const actual = new TextDecoder().decode((await bufPromise).bytes());
const expected = [
"POST /blah HTTP/1.1\r\n",
"content-length: 0\r\n",
`host: ${addr}\r\n`,
"accept: */*\r\n",
"accept-language: *\r\n",
`user-agent: Deno/${Deno.version.deno}\r\n`,
"accept-encoding: gzip, br\r\n\r\n",
].join("");
assertEquals(actual, expected);
},
);
Deno.test(
{
permissions: { net: true },
},
async function fetchWithNonAsciiRedirection() {
const response = await fetch("http://localhost:4545/non_ascii_redirect", {
redirect: "manual",
});
assertEquals(response.status, 301);
assertEquals(response.headers.get("location"), "/redirect®");
await response.text();
},
);
Deno.test(
{
permissions: { net: true },
},
async function fetchWithManualRedirection() {
const response = await fetch("http://localhost:4546/", {
redirect: "manual",
}); // will redirect to http://localhost:4545/
assertEquals(response.status, 301);
assertEquals(response.url, "http://localhost:4546/");
assertEquals(response.type, "basic");
assertEquals(response.headers.get("Location"), "http://localhost:4545/");
await response.body!.cancel();
},
);
Deno.test(
{
permissions: { net: true },
},
async function fetchWithErrorRedirection() {
await assertRejects(
() =>
fetch("http://localhost:4546/", {
redirect: "error",
}),
TypeError,
"redirect",
);
},
);
Deno.test(function responseRedirect() {
const redir = Response.redirect("http://example.com/newLocation", 301);
assertEquals(redir.status, 301);
assertEquals(redir.statusText, "");
assertEquals(redir.url, "");
assertEquals(
redir.headers.get("Location"),
"http://example.com/newLocation",
);
assertEquals(redir.type, "default");
});
Deno.test(function responseRedirectTakeURLObjectAsParameter() {
const redir = Response.redirect(new URL("https://example.com/"));
assertEquals(
redir.headers.get("Location"),
"https://example.com/",
);
});
Deno.test(async function responseWithoutBody() {
const response = new Response();
assertEquals(await response.arrayBuffer(), new ArrayBuffer(0));
const blob = await response.blob();
assertEquals(blob.size, 0);
assertEquals(await blob.arrayBuffer(), new ArrayBuffer(0));
assertEquals(await response.text(), "");
await assertRejects(async () => {
await response.json();
});
});
Deno.test({ permissions: { net: true } }, async function fetchBodyReadTwice() {
const response = await fetch("http://localhost:4545/assets/fixture.json");
// Read body
const _json = await response.json();
assert(_json);
// All calls after the body was consumed, should fail
const methods = ["json", "text", "formData", "arrayBuffer"] as const;
for (const method of methods) {
try {
await response[method]();
fail(
"Reading body multiple times should failed, the stream should've been locked.",
);
} catch {
// pass
}
}
});
Deno.test(
{ permissions: { net: true } },
async function fetchBodyReaderAfterRead() {
const response = await fetch(
"http://localhost:4545/assets/fixture.json",
);
assert(response.body !== null);
const reader = await response.body.getReader();
while (true) {
const { done, value } = await reader.read();
if (done) break;
assert(value);
}
try {
response.body.getReader();
fail("The stream should've been locked.");
} catch {
// pass
}
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchBodyReaderWithCancelAndNewReader() {
const data = "a".repeat(1 << 10);
const response = await fetch("http://localhost:4545/echo_server", {
method: "POST",
body: data,
});
assert(response.body !== null);
const firstReader = await response.body.getReader();
// Acquire reader without reading & release
await firstReader.releaseLock();
const reader = await response.body.getReader();
let total = 0;
while (true) {
const { done, value } = await reader.read();
if (done) break;
assert(value);
total += value.length;
}
assertEquals(total, data.length);
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchBodyReaderWithReadCancelAndNewReader() {
const data = "a".repeat(1 << 10);
const response = await fetch("http://localhost:4545/echo_server", {
method: "POST",
body: data,
});
assert(response.body !== null);
const firstReader = await response.body.getReader();
// Do one single read with first reader
const { value: firstValue } = await firstReader.read();
assert(firstValue);
await firstReader.releaseLock();
// Continue read with second reader
const reader = await response.body.getReader();
let total = firstValue.length || 0;
while (true) {
const { done, value } = await reader.read();
if (done) break;
assert(value);
total += value.length;
}
assertEquals(total, data.length);
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchResourceCloseAfterStreamCancel() {
const res = await fetch("http://localhost:4545/assets/fixture.json");
assert(res.body !== null);
// After ReadableStream.cancel is called, resource handle must be closed
// The test should not fail with: Test case is leaking resources
await res.body.cancel();
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchNullBodyStatus() {
const nullBodyStatus = [101, 204, 205, 304];
for (const status of nullBodyStatus) {
const headers = new Headers([["x-status", String(status)]]);
const res = await fetch("http://localhost:4545/echo_server", {
body: "deno",
method: "POST",
headers,
});
assertEquals(res.body, null);
assertEquals(res.status, status);
}
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchResponseContentLength() {
const body = new Uint8Array(2 ** 16);
const headers = new Headers([["content-type", "application/octet-stream"]]);
const res = await fetch("http://localhost:4545/echo_server", {
body: body,
method: "POST",
headers,
});
assertEquals(Number(res.headers.get("content-length")), body.byteLength);
const blob = await res.blob();
// Make sure Body content-type is correctly set
assertEquals(blob.type, "application/octet-stream");
assertEquals(blob.size, body.byteLength);
},
);
Deno.test(function fetchResponseConstructorNullBody() {
const nullBodyStatus = [204, 205, 304];
for (const status of nullBodyStatus) {
try {
new Response("deno", { status });
fail("Response with null body status cannot have body");
} catch (e) {
assert(e instanceof TypeError);
assertEquals(
e.message,
"Response with null body status cannot have body",
);
}
}
});
Deno.test(function fetchResponseConstructorInvalidStatus() {
const invalidStatus = [100, 600, 199, null, "", NaN];
for (const status of invalidStatus) {
try {
// deno-lint-ignore ban-ts-comment
// @ts-ignore
new Response("deno", { status });
fail(`Invalid status: ${status}`);
} catch (e) {
assert(e instanceof RangeError);
assert(
e.message.endsWith(
"is not equal to 101 and outside the range [200, 599].",
),
);
}
}
});
Deno.test(function fetchResponseEmptyConstructor() {
const response = new Response();
assertEquals(response.status, 200);
assertEquals(response.body, null);
assertEquals(response.type, "default");
assertEquals(response.url, "");
assertEquals(response.redirected, false);
assertEquals(response.ok, true);
assertEquals(response.bodyUsed, false);
assertEquals([...response.headers], []);
});
Deno.test(
{ permissions: { net: true, read: true } },
async function fetchCustomHttpClientParamCertificateSuccess(): Promise<
void
> {
const caCert = Deno.readTextFileSync("cli/tests/testdata/tls/RootCA.pem");
const client = Deno.createHttpClient({ caCerts: [caCert] });
const response = await fetch("https://localhost:5545/assets/fixture.json", {
client,
});
const json = await response.json();
assertEquals(json.name, "deno");
client.close();
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchCustomClientUserAgent(): Promise<
void
> {
const data = "Hello World";
const client = Deno.createHttpClient({});
const response = await fetch("http://localhost:4545/echo_server", {
client,
method: "POST",
body: new TextEncoder().encode(data),
});
assertEquals(
response.headers.get("user-agent"),
`Deno/${Deno.version.deno}`,
);
await response.text();
client.close();
},
);
Deno.test(
{
permissions: { net: true },
},
async function fetchPostBodyReadableStream() {
const addr = `127.0.0.1:${listenPort}`;
const bufPromise = bufferServer(addr);
const stream = new TransformStream();
const writer = stream.writable.getWriter();
// transformer writes don't resolve until they are read, so awaiting these
// will cause the transformer to hang, as the suspend the transformer, it
// is also illogical to await for the reads, as that is the whole point of
// streams is to have a "queue" which gets drained...
writer.write(new TextEncoder().encode("hello "));
writer.write(new TextEncoder().encode("world"));
writer.close();
const response = await fetch(`http://${addr}/blah`, {
method: "POST",
headers: [
["Hello", "World"],
["Foo", "Bar"],
],
body: stream.readable,
});
await response.arrayBuffer();
assertEquals(response.status, 404);
assertEquals(response.headers.get("Content-Length"), "2");
const actual = new TextDecoder().decode((await bufPromise).bytes());
const expected = [
"POST /blah HTTP/1.1\r\n",
"hello: World\r\n",
"foo: Bar\r\n",
"accept: */*\r\n",
"accept-language: *\r\n",
`user-agent: Deno/${Deno.version.deno}\r\n`,
"accept-encoding: gzip, br\r\n",
`host: ${addr}\r\n`,
`transfer-encoding: chunked\r\n\r\n`,
"6\r\n",
"hello \r\n",
"5\r\n",
"world\r\n",
"0\r\n\r\n",
].join("");
assertEquals(actual, expected);
},
);
Deno.test({}, function fetchWritableRespProps() {
const original = new Response("https://deno.land", {
status: 404,
headers: { "x-deno": "foo" },
});
const new_ = new Response("https://deno.land", original);
assertEquals(original.status, new_.status);
assertEquals(new_.headers.get("x-deno"), "foo");
});
Deno.test(
{ permissions: { net: true } },
async function fetchFilterOutCustomHostHeader(): Promise<
void
> {
const addr = `127.0.0.1:${listenPort}`;
const [hostname, port] = addr.split(":");
const listener = Deno.listen({
hostname,
port: Number(port),
}) as Deno.Listener;
let httpConn: Deno.HttpConn;
listener.accept().then(async (conn: Deno.Conn) => {
httpConn = Deno.serveHttp(conn);
await httpConn.nextRequest()
.then(async (requestEvent: Deno.RequestEvent | null) => {
const hostHeader = requestEvent?.request.headers.get("Host");
const headersToReturn = hostHeader
? { "Host": hostHeader }
: undefined;
await requestEvent?.respondWith(
new Response("", {
status: 200,
headers: headersToReturn,
}),
);
});
});
const response = await fetch(`http://${addr}/`, {
headers: { "Host": "example.com" },
});
await response.text();
listener.close();
httpConn!.close();
assertEquals(response.headers.get("Host"), addr);
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchNoServerReadableStreamBody() {
const done = deferred();
const body = new ReadableStream({
start(controller) {
controller.enqueue(new Uint8Array([1]));
setTimeout(() => {
controller.enqueue(new Uint8Array([2]));
done.resolve();
}, 1000);
},
});
const nonExistentHostname = "http://localhost:47582";
await assertRejects(async () => {
await fetch(nonExistentHostname, { body, method: "POST" });
}, TypeError);
await done;
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchHeadRespBody() {
const res = await fetch("http://localhost:4545/echo_server", {
method: "HEAD",
});
assertEquals(res.body, null);
},
);
Deno.test(
{ permissions: { read: true, net: true } },
async function fetchClientCertWrongPrivateKey(): Promise<void> {
await assertRejects(async () => {
const client = Deno.createHttpClient({
certChain: "bad data",
privateKey: await Deno.readTextFile(
"cli/tests/testdata/tls/localhost.key",
),
});
await fetch("https://localhost:5552/assets/fixture.json", {
client,
});
}, Deno.errors.InvalidData);
},
);
Deno.test(
{ permissions: { read: true, net: true } },
async function fetchClientCertBadPrivateKey(): Promise<void> {
await assertRejects(async () => {
const client = Deno.createHttpClient({
certChain: await Deno.readTextFile(
"cli/tests/testdata/tls/localhost.crt",
),
privateKey: "bad data",
});
await fetch("https://localhost:5552/assets/fixture.json", {
client,
});
}, Deno.errors.InvalidData);
},
);
Deno.test(
{ permissions: { read: true, net: true } },
async function fetchClientCertNotPrivateKey(): Promise<void> {
await assertRejects(async () => {
const client = Deno.createHttpClient({
certChain: await Deno.readTextFile(
"cli/tests/testdata/tls/localhost.crt",
),
privateKey: "",
});
await fetch("https://localhost:5552/assets/fixture.json", {
client,
});
}, Deno.errors.InvalidData);
},
);
Deno.test(
{ permissions: { read: true, net: true } },
async function fetchCustomClientPrivateKey(): Promise<
void
> {
const data = "Hello World";
const caCert = await Deno.readTextFile("cli/tests/testdata/tls/RootCA.crt");
const client = Deno.createHttpClient({
certChain: await Deno.readTextFile(
"cli/tests/testdata/tls/localhost.crt",
),
privateKey: await Deno.readTextFile(
"cli/tests/testdata/tls/localhost.key",
),
caCerts: [caCert],
});
const response = await fetch("https://localhost:5552/echo_server", {
client,
method: "POST",
body: new TextEncoder().encode(data),
});
assertEquals(
response.headers.get("user-agent"),
`Deno/${Deno.version.deno}`,
);
await response.text();
client.close();
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchAbortWhileUploadStreaming(): Promise<void> {
const abortController = new AbortController();
try {
await fetch(
"http://localhost:5552/echo_server",
{
method: "POST",
body: new ReadableStream({
pull(controller) {
abortController.abort();
controller.enqueue(new Uint8Array([1, 2, 3, 4]));
},
}),
signal: abortController.signal,
},
);
fail("Fetch didn't reject.");
} catch (error) {
assert(error instanceof DOMException);
assertEquals(error.name, "AbortError");
assertEquals(error.message, "The signal has been aborted");
}
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchAbortWhileUploadStreamingWithReason(): Promise<void> {
const abortController = new AbortController();
const abortReason = new Error();
try {
await fetch(
"http://localhost:5552/echo_server",
{
method: "POST",
body: new ReadableStream({
pull(controller) {
abortController.abort(abortReason);
controller.enqueue(new Uint8Array([1, 2, 3, 4]));
},
}),
signal: abortController.signal,
},
);
fail("Fetch didn't reject.");
} catch (error) {
assertEquals(error, abortReason);
}
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchAbortWhileUploadStreamingWithPrimitiveReason(): Promise<
void
> {
const abortController = new AbortController();
try {
await fetch(
"http://localhost:5552/echo_server",
{
method: "POST",
body: new ReadableStream({
pull(controller) {
abortController.abort("Abort reason");
controller.enqueue(new Uint8Array([1, 2, 3, 4]));
},
}),
signal: abortController.signal,
},
);
fail("Fetch didn't reject.");
} catch (error) {
assertEquals(error, "Abort reason");
}
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchHeaderValueShouldNotPanic() {
for (let i = 0; i < 0x21; i++) {
if (i === 0x09 || i === 0x0A || i === 0x0D || i === 0x20) {
continue; // these header value will be normalized, will not cause an error.
}
// ensure there will be an error instead of panic.
await assertRejects(() =>
fetch("http://localhost:4545/echo_server", {
method: "HEAD",
headers: { "val": String.fromCharCode(i) },
}), TypeError);
}
await assertRejects(() =>
fetch("http://localhost:4545/echo_server", {
method: "HEAD",
headers: { "val": String.fromCharCode(127) },
}), TypeError);
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchHeaderNameShouldNotPanic() {
const validTokens =
"!#$%&'*+-.0123456789ABCDEFGHIJKLMNOPQRSTUWVXYZ^_`abcdefghijklmnopqrstuvwxyz|~"
.split("");
for (let i = 0; i <= 255; i++) {
const token = String.fromCharCode(i);
if (validTokens.includes(token)) {
continue;
}
// ensure there will be an error instead of panic.
await assertRejects(() =>
fetch("http://localhost:4545/echo_server", {
method: "HEAD",
headers: { [token]: "value" },
}), TypeError);
}
await assertRejects(() =>
fetch("http://localhost:4545/echo_server", {
method: "HEAD",
headers: { "": "value" },
}), TypeError);
},
);
Deno.test(
{ permissions: { net: true, read: true } },
async function fetchSupportsHttpsOverIpAddress() {
const caCert = await Deno.readTextFile("cli/tests/testdata/tls/RootCA.pem");
const client = Deno.createHttpClient({ caCerts: [caCert] });
const res = await fetch("https://localhost:5546/http_version", { client });
assert(res.ok);
assertEquals(await res.text(), "HTTP/1.1");
client.close();
},
);
Deno.test(
{ permissions: { net: true, read: true } },
async function fetchSupportsHttp1Only() {
const caCert = await Deno.readTextFile("cli/tests/testdata/tls/RootCA.pem");
const client = Deno.createHttpClient({ caCerts: [caCert] });
const res = await fetch("https://localhost:5546/http_version", { client });
assert(res.ok);
assertEquals(await res.text(), "HTTP/1.1");
client.close();
},
);
Deno.test(
{ permissions: { net: true, read: true } },
async function fetchSupportsHttp2() {
const caCert = await Deno.readTextFile("cli/tests/testdata/tls/RootCA.pem");
const client = Deno.createHttpClient({ caCerts: [caCert] });
const res = await fetch("https://localhost:5547/http_version", { client });
assert(res.ok);
assertEquals(await res.text(), "HTTP/2.0");
client.close();
},
);
Deno.test(
{ permissions: { net: true, read: true } },
async function fetchForceHttp1OnHttp2Server() {
const client = Deno.createHttpClient({ http2: false, http1: true });
await assertRejects(
() => fetch("http://localhost:5549/http_version", { client }),
TypeError,
);
client.close();
},
);
Deno.test(
{ permissions: { net: true, read: true } },
async function fetchForceHttp2OnHttp1Server() {
const client = Deno.createHttpClient({ http2: true, http1: false });
await assertRejects(
() => fetch("http://localhost:5548/http_version", { client }),
TypeError,
);
client.close();
},
);
Deno.test(
{ permissions: { net: true, read: true } },
async function fetchPrefersHttp2() {
const caCert = await Deno.readTextFile("cli/tests/testdata/tls/RootCA.pem");
const client = Deno.createHttpClient({ caCerts: [caCert] });
const res = await fetch("https://localhost:5545/http_version", { client });
assert(res.ok);
assertEquals(await res.text(), "HTTP/2.0");
client.close();
},
);
Deno.test(
{ permissions: { net: true, read: true } },
async function createHttpClientAllowHost() {
const client = Deno.createHttpClient({
allowHost: true,
});
const res = await fetch("http://localhost:4545/echo_server", {
headers: {
"host": "example.com",
},
client,
});
assert(res.ok);
assertEquals(res.headers.get("host"), "example.com");
await res.body?.cancel();
client.close();
},
);
Deno.test({ permissions: { read: false } }, async function fetchFilePerm() {
await assertRejects(async () => {
await fetch(import.meta.resolve("../testdata/subdir/json_1.json"));
}, Deno.errors.PermissionDenied);
});
Deno.test(
{ permissions: { read: false } },
async function fetchFilePermDoesNotExist() {
await assertRejects(async () => {
await fetch(import.meta.resolve("./bad.json"));
}, Deno.errors.PermissionDenied);
},
);
Deno.test(
{ permissions: { read: true } },
async function fetchFileBadMethod() {
await assertRejects(
async () => {
await fetch(
import.meta.resolve("../testdata/subdir/json_1.json"),
{
method: "POST",
},
);
},
TypeError,
"Fetching files only supports the GET method. Received POST.",
);
},
);
Deno.test(
{ permissions: { read: true } },
async function fetchFileDoesNotExist() {
await assertRejects(
async () => {
await fetch(import.meta.resolve("./bad.json"));
},
TypeError,
);
},
);
Deno.test(
{ permissions: { read: true } },
async function fetchFile() {
const res = await fetch(
import.meta.resolve("../testdata/subdir/json_1.json"),
);
assert(res.ok);
const fixture = await Deno.readTextFile(
"cli/tests/testdata/subdir/json_1.json",
);
assertEquals(await res.text(), fixture);
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchContentLengthPost() {
const response = await fetch("http://localhost:4545/content_length", {
method: "POST",
});
const length = await response.text();
assertEquals(length, 'Some("0")');
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchContentLengthPut() {
const response = await fetch("http://localhost:4545/content_length", {
method: "PUT",
});
const length = await response.text();
assertEquals(length, 'Some("0")');
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchContentLengthPatch() {
const response = await fetch("http://localhost:4545/content_length", {
method: "PATCH",
});
const length = await response.text();
assertEquals(length, "None");
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchContentLengthPostWithStringBody() {
const response = await fetch("http://localhost:4545/content_length", {
method: "POST",
body: "Hey!",
});
const length = await response.text();
assertEquals(length, 'Some("4")');
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchContentLengthPostWithBufferBody() {
const response = await fetch("http://localhost:4545/content_length", {
method: "POST",
body: new TextEncoder().encode("Hey!"),
});
const length = await response.text();
assertEquals(length, 'Some("4")');
},
);
Deno.test(async function staticResponseJson() {
const data = { hello: "world" };
const resp = Response.json(data);
assertEquals(resp.status, 200);
assertEquals(resp.headers.get("content-type"), "application/json");
const res = await resp.json();
assertEquals(res, data);
});
function invalidServer(addr: string, body: Uint8Array): Deno.Listener {
const [hostname, port] = addr.split(":");
const listener = Deno.listen({
hostname,
port: Number(port),
}) as Deno.Listener;
(async () => {
for await (const conn of listener) {
const p1 = conn.read(new Uint8Array(2 ** 14));
const p2 = conn.write(body);
await Promise.all([p1, p2]);
conn.close();
}
})();
return listener;
}
Deno.test(
{ permissions: { net: true } },
async function fetchWithInvalidContentLengthAndTransferEncoding(): Promise<
void
> {
const addr = `127.0.0.1:${listenPort}`;
const data = "a".repeat(10 << 10);
const body = new TextEncoder().encode(
`HTTP/1.1 200 OK\r\nContent-Length: ${
Math.round(data.length * 2)
}\r\nTransfer-Encoding: chunked\r\n\r\n${
data.length.toString(16)
}\r\n${data}\r\n0\r\n\r\n`,
);
// if transfer-encoding is sent, content-length is ignored
// even if it has an invalid value (content-length > totalLength)
const listener = invalidServer(addr, body);
const client = Deno.createHttpClient({});
const response = await fetch(`http://${addr}/`, { client });
const res = await response.arrayBuffer();
const buf = new TextEncoder().encode(data);
assertEquals(res.byteLength, buf.byteLength);
assertEquals(new Uint8Array(res), buf);
listener.close();
client.close();
},
);
Deno.test(
// TODO(bartlomieju): reenable this test
// https://github.com/denoland/deno/issues/18350
{ ignore: Deno.build.os === "windows", permissions: { net: true } },
async function fetchWithInvalidContentLength(): Promise<
void
> {
const addr = `127.0.0.1:${listenPort}`;
const data = "a".repeat(10 << 10);
const body = new TextEncoder().encode(
`HTTP/1.1 200 OK\r\nContent-Length: ${
Math.round(data.length / 2)
}\r\nContent-Length: ${data.length}\r\n\r\n${data}`,
);
// It should fail if multiple content-length headers with different values are sent
const listener = invalidServer(addr, body);
const client = Deno.createHttpClient({});
await assertRejects(
async () => {
await fetch(`http://${addr}/`, { client });
},
TypeError,
"invalid content-length parsed",
);
listener.close();
client.close();
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchWithInvalidContentLength2(): Promise<
void
> {
const addr = `127.0.0.1:${listenPort}`;
const data = "a".repeat(10 << 10);
const contentLength = data.length / 2;
const body = new TextEncoder().encode(
`HTTP/1.1 200 OK\r\nContent-Length: ${contentLength}\r\n\r\n${data}`,
);
const listener = invalidServer(addr, body);
const client = Deno.createHttpClient({});
const response = await fetch(`http://${addr}/`, { client });
// If content-length < totalLength, a maximum of content-length bytes
// should be returned.
const res = await response.arrayBuffer();
const buf = new TextEncoder().encode(data);
assertEquals(res.byteLength, contentLength);
assertEquals(new Uint8Array(res), buf.subarray(contentLength));
listener.close();
client.close();
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchWithInvalidContentLength3(): Promise<
void
> {
const addr = `127.0.0.1:${listenPort}`;
const data = "a".repeat(10 << 10);
const contentLength = data.length * 2;
const body = new TextEncoder().encode(
`HTTP/1.1 200 OK\r\nContent-Length: ${contentLength}\r\n\r\n${data}`,
);
const listener = invalidServer(addr, body);
const client = Deno.createHttpClient({});
const response = await fetch(`http://${addr}/`, { client });
// If content-length > totalLength, a maximum of content-length bytes
// should be returned.
await assertRejects(
async () => {
await response.arrayBuffer();
},
Error,
"end of file before message length reached",
);
listener.close();
client.close();
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchBlobUrl(): Promise<void> {
const blob = new Blob(["ok"], { type: "text/plain" });
const url = URL.createObjectURL(blob);
const res = await fetch(url);
assert(res.url.startsWith("blob:http://js-unit-tests/"));
assertEquals(res.status, 200);
assertEquals(res.headers.get("content-length"), "2");
assertEquals(res.headers.get("content-type"), "text/plain");
assertEquals(await res.text(), "ok");
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchResponseStreamIsLockedWhileReading() {
const response = await fetch("http://localhost:4545/echo_server", {
body: new Uint8Array(5000),
method: "POST",
});
assertEquals(response.body!.locked, false);
const promise = response.arrayBuffer();
assertEquals(response.body!.locked, true);
await promise;
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchConstructorClones() {
const req = new Request("https://example.com", {
method: "POST",
body: "foo",
});
assertEquals(await req.text(), "foo");
await assertRejects(() => req.text());
const req2 = new Request(req, { method: "PUT", body: "bar" }); // should not have any impact on req
await assertRejects(() => req.text());
assertEquals(await req2.text(), "bar");
assertEquals(req.method, "POST");
assertEquals(req2.method, "PUT");
assertEquals(req.headers.get("x-foo"), null);
assertEquals(req2.headers.get("x-foo"), null);
req2.headers.set("x-foo", "bar"); // should not have any impact on req
assertEquals(req.headers.get("x-foo"), null);
assertEquals(req2.headers.get("x-foo"), "bar");
},
);
Deno.test(
// TODO(bartlomieju): reenable this test
// https://github.com/denoland/deno/issues/18350
{ ignore: Deno.build.os === "windows", permissions: { net: true } },
async function fetchRequestBodyErrorCatchable() {
const listener = Deno.listen({ hostname: "127.0.0.1", port: listenPort });
const server = (async () => {
const conn = await listener.accept();
listener.close();
const buf = new Uint8Array(256);
const n = await conn.read(buf);
const data = new TextDecoder().decode(buf.subarray(0, n!)); // this is the request headers + first body chunk
assert(data.startsWith("POST / HTTP/1.1\r\n"));
assert(data.endsWith("1\r\na\r\n"));
const n2 = await conn.read(buf);
assertEquals(n2, 6); // this is the second body chunk
const n3 = await conn.read(buf);
assertEquals(n3, null); // the connection now abruptly closes because the client has errored
conn.close();
})();
const stream = new ReadableStream({
async start(controller) {
controller.enqueue(new TextEncoder().encode("a"));
await delay(1000);
controller.enqueue(new TextEncoder().encode("b"));
await delay(1000);
controller.error(new Error("foo"));
},
});
const client = Deno.createHttpClient({});
const err = await assertRejects(() =>
fetch(`http://localhost:${listenPort}/`, {
body: stream,
method: "POST",
client,
})
);
assert(err instanceof TypeError);
assert(err.cause);
assert(err.cause instanceof Error);
assertEquals(err.cause.message, "foo");
await server;
client.close();
},
);
Deno.test(
{ permissions: { net: true } },
async function fetchRequestBodyEmptyStream() {
const body = new ReadableStream({
start(controller) {
controller.enqueue(new Uint8Array([]));
controller.close();
},
});
await assertRejects(
async () => {
const controller = new AbortController();
const promise = fetch("http://localhost:4545/echo_server", {
body,
method: "POST",
signal: controller.signal,
});
controller.abort();
await promise;
},
DOMException,
"The signal has been aborted",
);
},
);
Deno.test("Request with subarray TypedArray body", async () => {
const body = new Uint8Array([1, 2, 3, 4, 5]).subarray(1);
const req = new Request("https://example.com", { method: "POST", body });
const actual = new Uint8Array(await req.arrayBuffer());
const expected = new Uint8Array([2, 3, 4, 5]);
assertEquals(actual, expected);
});
Deno.test("Response with subarray TypedArray body", async () => {
const body = new Uint8Array([1, 2, 3, 4, 5]).subarray(1);
const req = new Response(body);
const actual = new Uint8Array(await req.arrayBuffer());
const expected = new Uint8Array([2, 3, 4, 5]);
assertEquals(actual, expected);
});