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denoland-deno/js/fetch_test.ts

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// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
import { test, testPerm, assert, assertEquals } from "./test_util.ts";
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testPerm({ net: true }, async function fetchJsonSuccess(): Promise<void> {
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const response = await fetch("http://localhost:4545/package.json");
const json = await response.json();
assertEquals(json.name, "deno");
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});
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test(async function fetchPerm(): Promise<void> {
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let err;
try {
await fetch("http://localhost:4545/package.json");
} catch (err_) {
err = err_;
}
assertEquals(err.kind, Deno.ErrorKind.PermissionDenied);
assertEquals(err.name, "PermissionDenied");
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});
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testPerm({ net: true }, async function fetchHeaders(): Promise<void> {
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const response = await fetch("http://localhost:4545/package.json");
const headers = response.headers;
assertEquals(headers.get("Content-Type"), "application/json");
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assert(headers.get("Server").startsWith("SimpleHTTP"));
});
testPerm({ net: true }, async function fetchBlob(): Promise<void> {
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const response = await fetch("http://localhost:4545/package.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")));
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});
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testPerm({ net: true }, async function responseClone(): Promise<void> {
const response = await fetch("http://localhost:4545/package.json");
const response1 = response.clone();
assert(response !== response1);
assertEquals(response.status, response1.status);
assertEquals(response.statusText, response1.statusText);
const ab = await response.arrayBuffer();
const ab1 = await response1.arrayBuffer();
for (let i = 0; i < ab.byteLength; i++) {
assertEquals(ab[i], ab1[i]);
}
});
testPerm({ net: true }, async function fetchEmptyInvalid(): Promise<void> {
let err;
try {
await fetch("");
} catch (err_) {
err = err_;
}
assertEquals(err.kind, Deno.ErrorKind.InvalidUri);
assertEquals(err.name, "InvalidUri");
});
testPerm({ net: true }, async function fetchMultipartFormDataSuccess(): Promise<
void
> {
const response = await fetch(
"http://localhost:4545/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...
});
testPerm(
{ net: true },
async function fetchURLEncodedFormDataSuccess(): Promise<void> {
const response = await fetch(
"http://localhost:4545/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>");
}
);
testPerm({ 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"));
});
/* TODO(ry) Re-enable this test.
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testPerm({ 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);
assert(response.headers.get("content-type").startsWith("text/plain"));
});
*/
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testPerm({ 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);
});
testPerm({ 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")
);
});
testPerm({ 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"));
});
// 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:
//
// test 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 listener = Deno.listen("tcp", addr);
const buf = new Deno.Buffer();
listener.accept().then(async 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;
}
testPerm({ 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: ${addr}\r\n\r\n`
].join("");
assertEquals(actual, expected);
});
testPerm({ net: true }, async function fetchPostBodyString():Promise<void> {
const addr = "127.0.0.1:4502";
const buf = bufferServer(addr);
const body = "hello world";
const response = await fetch(`http://${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: ${body.length}\r\n\r\n`,
body
].join("");
assertEquals(actual, expected);
});
testPerm({ net: true }, async function fetchPostBodyTypedArray():Promise<void> {
const addr = "127.0.0.1:4503";
const buf = bufferServer(addr);
const bodyStr = "hello world";
const body = new TextEncoder().encode(bodyStr);
const response = await fetch(`http://${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);
});
*/