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send_test.ts
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send_test.ts
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// Copyright 2018-2020 the oak authors. All rights reserved. MIT license.
import { assert, assertEquals, assertStrictEquals, test } from "./test_deps.ts";
import { Application } from "./application.ts";
import { Context } from "./context.ts";
import { Status } from "./deps.ts";
import { httpErrors } from "./httpError.ts";
import { send } from "./send.ts";
let encodingsAccepted = "identity";
function createMockApp<
S extends Record<string | number | symbol, any> = Record<string, any>,
>(
state = {} as S,
): Application<S> {
return {
state,
} as any;
}
function createMockContext<
S extends Record<string | number | symbol, any> = Record<string, any>,
>(
app: Application<S>,
path = "/",
method = "GET",
) {
let body: any;
let status = Status.OK;
const headers = new Headers();
const resources: number[] = [];
return ({
app,
request: {
acceptsEncodings() {
return encodingsAccepted;
},
headers: new Headers(),
method,
path,
search: undefined,
searchParams: new URLSearchParams(),
url: new URL(`http://localhost${path}`),
},
response: {
get status(): Status {
return status;
},
set status(value: Status) {
status = value;
},
get body(): any {
return body;
},
set body(value: any) {
body = value;
},
addResource(rid: number) {
resources.push(rid);
},
destroy() {
body = undefined;
for (const rid of resources) {
Deno.close(rid);
}
},
headers,
async toServerResponse() {
return {
status,
body,
headers,
};
},
},
state: app.state,
} as unknown) as Context<S>;
}
function isDenoReader(value: any): value is Deno.Reader {
return value && typeof value === "object" && "read" in value &&
typeof value.read === "function";
}
function setup<
S extends Record<string | number | symbol, any> = Record<string, any>,
>(
path = "/",
method = "GET",
): {
app: Application<S>;
context: Context<S>;
} {
encodingsAccepted = "identity";
const app = createMockApp<S>();
const context = createMockContext<S>(app, path, method);
return { app, context };
}
test({
name: "send HTML",
async fn() {
const { context } = setup("/test.html");
const fixture = await Deno.readFile("./fixtures/test.html");
await send(context, context.request.url.pathname, { root: "./fixtures" });
const serverResponse = context.response.toServerResponse();
const bodyReader = (await serverResponse).body;
assert(isDenoReader(bodyReader));
const body = await Deno.readAll(bodyReader);
assertEquals(body, fixture);
assertEquals(context.response.type, ".html");
assertEquals(
context.response.headers.get("content-length"),
String(fixture.length),
);
assert(context.response.headers.get("last-modified") != null);
assertEquals(context.response.headers.get("cache-control"), "max-age=0");
context.response.destroy();
},
});
test({
name: "send gzip",
async fn() {
const { context } = setup("/test.json");
const fixture = await Deno.readFile("./fixtures/test.json.gz");
encodingsAccepted = "gzip";
await send(context, context.request.url.pathname, {
root: "./fixtures",
});
const serverResponse = context.response.toServerResponse();
const bodyReader = (await serverResponse).body;
assert(isDenoReader(bodyReader));
const body = await Deno.readAll(bodyReader);
assertEquals(body, fixture);
assertEquals(context.response.type, ".json");
assertEquals(context.response.headers.get("content-encoding"), "gzip");
assertEquals(
context.response.headers.get("content-length"),
String(fixture.length),
);
context.response.destroy();
},
});
test({
name: "send brotli",
async fn() {
const { context } = setup("/test.json");
const fixture = await Deno.readFile("./fixtures/test.json.br");
encodingsAccepted = "br";
await send(context, context.request.url.pathname, { root: "./fixtures" });
const serverResponse = context.response.toServerResponse();
const bodyReader = (await serverResponse).body;
assert(isDenoReader(bodyReader));
const body = await Deno.readAll(bodyReader);
assertEquals(body, fixture);
assertEquals(context.response.type, ".json");
assertEquals(context.response.headers.get("content-encoding"), "br");
assertEquals(
context.response.headers.get("content-length"),
String(fixture.length),
);
context.response.destroy();
},
});
test({
name: "send identity",
async fn() {
const { context } = setup("/test.json");
const fixture = await Deno.readFile("./fixtures/test.json");
await send(context, context.request.url.pathname, {
root: "./fixtures",
});
const serverResponse = context.response.toServerResponse();
const bodyReader = (await serverResponse).body;
assert(isDenoReader(bodyReader));
const body = await Deno.readAll(bodyReader);
assertEquals(body, fixture);
assertEquals(context.response.type, ".json");
assertStrictEquals(context.response.headers.get("content-encoding"), null);
assertEquals(
context.response.headers.get("content-length"),
String(fixture.length),
);
context.response.destroy();
},
});
test({
name: "send 404",
async fn() {
const { context } = setup("/foo.txt");
encodingsAccepted = "identity";
let didThrow = false;
try {
await send(context, context.request.url.pathname, {
root: "./fixtures",
});
} catch (e) {
assert(e instanceof httpErrors.NotFound);
didThrow = true;
}
assert(didThrow);
},
});