deno/cli/js/tests/fetch_test.ts

539 lines
15 KiB
TypeScript

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import {
unitTest,
assert,
assertEquals,
assertStrContains,
assertThrows,
fail,
} from "./test_util.ts";
unitTest({ perms: { net: true } }, async function fetchProtocolError(): Promise<
void
> {
let err;
try {
await fetch("file:///");
} catch (err_) {
err = err_;
}
assert(err instanceof TypeError);
assertStrContains(err.message, "not supported");
});
unitTest(
{ perms: { net: true } },
async function fetchConnectionError(): Promise<void> {
let err;
try {
await fetch("http://localhost:4000");
} catch (err_) {
err = err_;
}
assert(err instanceof Deno.errors.Http);
assertStrContains(err.message, "error trying to connect");
}
);
unitTest({ perms: { net: true } }, async function fetchJsonSuccess(): Promise<
void
> {
const response = await fetch("http://localhost:4545/cli/tests/fixture.json");
const json = await response.json();
assertEquals(json.name, "deno");
});
unitTest(async function fetchPerm(): Promise<void> {
let err;
try {
await fetch("http://localhost:4545/cli/tests/fixture.json");
} catch (err_) {
err = err_;
}
assert(err instanceof Deno.errors.PermissionDenied);
assertEquals(err.name, "PermissionDenied");
});
unitTest({ perms: { net: true } }, async function fetchUrl(): Promise<void> {
const response = await fetch("http://localhost:4545/cli/tests/fixture.json");
assertEquals(response.url, "http://localhost:4545/cli/tests/fixture.json");
response.body.close();
});
unitTest({ perms: { net: true } }, async function fetchURL(): Promise<void> {
const response = await fetch(
new URL("http://localhost:4545/cli/tests/fixture.json")
);
assertEquals(response.url, "http://localhost:4545/cli/tests/fixture.json");
response.body.close();
});
unitTest({ perms: { net: true } }, async function fetchHeaders(): Promise<
void
> {
const response = await fetch("http://localhost:4545/cli/tests/fixture.json");
const headers = response.headers;
assertEquals(headers.get("Content-Type"), "application/json");
assert(headers.get("Server")!.startsWith("SimpleHTTP"));
response.body.close();
});
unitTest({ perms: { net: true } }, async function fetchBlob(): Promise<void> {
const response = await fetch("http://localhost:4545/cli/tests/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")));
});
unitTest({ perms: { net: true } }, async function fetchBodyUsed(): Promise<
void
> {
const response = await fetch("http://localhost:4545/cli/tests/fixture.json");
assertEquals(response.bodyUsed, false);
assertThrows((): void => {
// Assigning to read-only property throws in the strict mode.
response.bodyUsed = true;
});
await response.blob();
assertEquals(response.bodyUsed, true);
});
unitTest({ perms: { net: true } }, async function fetchAsyncIterator(): Promise<
void
> {
const response = await fetch("http://localhost:4545/cli/tests/fixture.json");
const headers = response.headers;
let total = 0;
for await (const chunk of response.body) {
total += chunk.length;
}
assertEquals(total, Number(headers.get("Content-Length")));
response.body.close();
});
unitTest({ perms: { net: true } }, async function responseClone(): Promise<
void
> {
const response = await fetch("http://localhost:4545/cli/tests/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]);
}
});
unitTest({ perms: { net: true } }, async function fetchEmptyInvalid(): Promise<
void
> {
let err;
try {
await fetch("");
} catch (err_) {
err = err_;
}
assert(err instanceof URIError);
});
unitTest(
{ perms: { net: true } },
async function fetchMultipartFormDataSuccess(): Promise<void> {
const response = await fetch(
"http://localhost:4545/cli/tests/subdir/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"));
/* TODO(ry) Re-enable this test once we bring back the global File type.
const file = formData.get("field_2") as File;
assertEquals(file.name, "file.js");
*/
// Currently we cannot read from file...
}
);
unitTest(
{ perms: { net: true } },
async function fetchURLEncodedFormDataSuccess(): Promise<void> {
const response = await fetch(
"http://localhost:4545/cli/tests/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>");
}
);
unitTest(
{
perms: { net: true },
},
async function fetchWithRedirection(): Promise<void> {
const response = await fetch("http://localhost:4546/"); // will redirect to http://localhost:4545/
assertEquals(response.status, 200);
assertEquals(response.statusText, "OK");
assertEquals(response.url, "http://localhost:4545/");
const body = await response.text();
assert(body.includes("<title>Directory listing for /</title>"));
}
);
unitTest(
{
perms: { net: true },
},
async function fetchWithRelativeRedirection(): Promise<void> {
const response = await fetch("http://localhost:4545/cli/tests"); // will redirect to /cli/tests/
assertEquals(response.status, 200);
assertEquals(response.statusText, "OK");
const body = await response.text();
assert(body.includes("<title>Directory listing for /cli/tests/</title>"));
}
);
unitTest(
{
// FIXME(bartlomieju):
// The feature below is not implemented, but the test should work after implementation
ignore: true,
perms: { net: true },
},
async function fetchWithInfRedirection(): Promise<void> {
const response = await fetch("http://localhost:4549/cli/tests"); // will redirect to the same place
assertEquals(response.status, 0); // network error
}
);
unitTest(
{ perms: { net: true } },
async function fetchInitStringBody(): Promise<void> {
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"));
}
);
unitTest(
{ perms: { net: true } },
async function fetchRequestInitStringBody(): Promise<void> {
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);
}
);
unitTest(
{ perms: { net: true } },
async function fetchInitTypedArrayBody(): Promise<void> {
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);
}
);
unitTest(
{ perms: { net: true } },
async function fetchInitURLSearchParamsBody(): Promise<void> {
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")
);
}
);
unitTest({ perms: { net: true } }, async function fetchInitBlobBody(): Promise<
void
> {
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"));
});
unitTest(
{ perms: { net: true } },
async function fetchInitFormDataBody(): Promise<void> {
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"));
}
);
unitTest({ perms: { net: true } }, async function fetchUserAgent(): Promise<
void
> {
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/${Deno.version.deno}`);
await response.text();
});
// TODO(ry) The following tests work but are flaky. There's a race condition
// somewhere. Here is what one of these flaky failures looks like:
//
// unitTest fetchPostBodyString_permW0N1E0R0
// assertEquals failed. actual = expected = POST /blah HTTP/1.1
// hello: World
// foo: Bar
// host: 127.0.0.1:4502
// content-length: 11
// hello world
// Error: actual: expected: POST /blah HTTP/1.1
// hello: World
// foo: Bar
// host: 127.0.0.1:4502
// content-length: 11
// hello world
// at Object.assertEquals (file:///C:/deno/js/testing/util.ts:29:11)
// at fetchPostBodyString (file
function bufferServer(addr: string): Deno.Buffer {
const [hostname, port] = addr.split(":");
const listener = Deno.listen({
hostname,
port: Number(port),
}) as Deno.Listener;
const buf = new Deno.Buffer();
listener.accept().then(async (conn: Deno.Conn) => {
const p1 = buf.readFrom(conn);
const p2 = conn.write(
new TextEncoder().encode(
"HTTP/1.0 404 Not Found\r\nContent-Length: 2\r\n\r\nNF"
)
);
// Wait for both an EOF on the read side of the socket and for the write to
// complete before closing it. Due to keep-alive, the EOF won't be sent
// until the Connection close (HTTP/1.0) response, so readFrom() can't
// proceed write. Conversely, if readFrom() is async, waiting for the
// write() to complete is not a guarantee that we've read the incoming
// request.
await Promise.all([p1, p2]);
conn.close();
listener.close();
});
return buf;
}
unitTest(
{
// FIXME(bartlomieju)
ignore: true,
perms: { net: true },
},
async function fetchRequest(): Promise<void> {
const addr = "127.0.0.1:4501";
const buf = bufferServer(addr);
const response = await fetch(`http://${addr}/blah`, {
method: "POST",
headers: [
["Hello", "World"],
["Foo", "Bar"],
],
});
assertEquals(response.status, 404);
assertEquals(response.headers.get("Content-Length"), "2");
const actual = new TextDecoder().decode(buf.bytes());
const expected = [
"POST /blah HTTP/1.1\r\n",
"hello: World\r\n",
"foo: Bar\r\n",
`host: ${addr}\r\n\r\n`,
].join("");
assertEquals(actual, expected);
}
);
unitTest(
{
// FIXME(bartlomieju)
ignore: true,
perms: { net: true },
},
async function fetchPostBodyString(): Promise<void> {
const addr = "127.0.0.1:4502";
const buf = bufferServer(addr);
const body = "hello world";
const response = await fetch(`http://${addr}/blah`, {
method: "POST",
headers: [
["Hello", "World"],
["Foo", "Bar"],
],
body,
});
assertEquals(response.status, 404);
assertEquals(response.headers.get("Content-Length"), "2");
const actual = new TextDecoder().decode(buf.bytes());
const expected = [
"POST /blah HTTP/1.1\r\n",
"hello: World\r\n",
"foo: Bar\r\n",
`host: ${addr}\r\n`,
`content-length: ${body.length}\r\n\r\n`,
body,
].join("");
assertEquals(actual, expected);
}
);
unitTest(
{
// FIXME(bartlomieju)
ignore: true,
perms: { net: true },
},
async function fetchPostBodyTypedArray(): Promise<void> {
const addr = "127.0.0.1:4503";
const buf = bufferServer(addr);
const bodyStr = "hello world";
const body = new TextEncoder().encode(bodyStr);
const response = await fetch(`http://${addr}/blah`, {
method: "POST",
headers: [
["Hello", "World"],
["Foo", "Bar"],
],
body,
});
assertEquals(response.status, 404);
assertEquals(response.headers.get("Content-Length"), "2");
const actual = new TextDecoder().decode(buf.bytes());
const expected = [
"POST /blah HTTP/1.1\r\n",
"hello: World\r\n",
"foo: Bar\r\n",
`host: ${addr}\r\n`,
`content-length: ${body.byteLength}\r\n\r\n`,
bodyStr,
].join("");
assertEquals(actual, expected);
}
);
unitTest(
{
perms: { net: true },
},
async function fetchWithManualRedirection(): Promise<void> {
const response = await fetch("http://localhost:4546/", {
redirect: "manual",
}); // will redirect to http://localhost:4545/
assertEquals(response.status, 0);
assertEquals(response.statusText, "");
assertEquals(response.url, "");
assertEquals(response.type, "opaqueredirect");
try {
await response.text();
fail(
"Reponse.text() didn't throw on a filtered response without a body (type opaqueredirect)"
);
} catch (e) {
return;
}
}
);
unitTest(
{
perms: { net: true },
},
async function fetchWithErrorRedirection(): Promise<void> {
const response = await fetch("http://localhost:4546/", {
redirect: "error",
}); // will redirect to http://localhost:4545/
assertEquals(response.status, 0);
assertEquals(response.statusText, "");
assertEquals(response.url, "");
assertEquals(response.type, "error");
try {
await response.text();
fail(
"Reponse.text() didn't throw on a filtered response without a body (type error)"
);
} catch (e) {
return;
}
}
);
unitTest(function responseRedirect(): void {
const response = new Response(
"example.com/beforeredirect",
200,
"OK",
[["This-Should", "Disappear"]],
-1,
false,
null
);
const redir = response.redirect("example.com/newLocation", 301);
assertEquals(redir.status, 301);
assertEquals(redir.statusText, "");
assertEquals(redir.url, "");
assertEquals(redir.headers.get("Location"), "example.com/newLocation");
assertEquals(redir.type, "default");
});
unitTest(function responseConstructionHeaderRemoval(): void {
const res = new Response(
"example.com",
200,
"OK",
[["Set-Cookie", "mysessionid"]],
-1,
false,
"basic",
null
);
assert(res.headers.get("Set-Cookie") != "mysessionid");
});