mirror of
https://github.com/oven-sh/bun
synced 2026-02-09 18:38:55 +00:00
302 lines
8.7 KiB
JavaScript
302 lines
8.7 KiB
JavaScript
import fs from "fs";
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import { it, expect, describe } from "bun:test";
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import path from "path";
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import { gcTick, withoutAggressiveGC } from "./gc";
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it("Bun.write blob", async () => {
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await Bun.write(
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Bun.file("/tmp/response-file.test.txt"),
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Bun.file(path.join(import.meta.dir, "fetch.js.txt")),
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);
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await gcTick();
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await Bun.write(Bun.file("/tmp/response-file.test.txt"), "blah blah blha");
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await gcTick();
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await Bun.write(
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Bun.file("/tmp/response-file.test.txt"),
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new Uint32Array(1024),
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);
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await gcTick();
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await Bun.write("/tmp/response-file.test.txt", new Uint32Array(1024));
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await gcTick();
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expect(
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await Bun.write(
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new TextEncoder().encode("/tmp/response-file.test.txt"),
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new Uint32Array(1024),
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),
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).toBe(new Uint32Array(1024).byteLength);
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await gcTick();
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});
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describe("large file", () => {
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const fixtures = [
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[
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`/tmp/bun-test-large-file-${Date.now()}.txt`,
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"https://www.iana.org/assignments/media-types/media-types.xhtml,".repeat(
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10000,
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),
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],
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];
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for (const [filename, content] of fixtures) {
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it(`write ${filename} ${content.length} (text)`, async () => {
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try {
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unlinkSync(filename);
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} catch (e) {}
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await Bun.write(filename, content);
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expect(await Bun.file(filename).text()).toBe(content);
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try {
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unlinkSync(filename);
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} catch (e) {}
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});
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it(`write ${filename}.bytes ${content.length} (bytes)`, async () => {
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try {
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unlinkSync(filename + ".bytes");
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} catch (e) {}
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var bytes = new TextEncoder().encode(content);
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const written = await Bun.write(filename + ".bytes", bytes);
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expect(written).toBe(bytes.byteLength);
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expect(
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new Buffer(await Bun.file(filename + ".bytes").arrayBuffer()).equals(
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bytes,
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),
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).toBe(true);
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try {
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unlinkSync(filename + ".bytes");
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} catch (e) {}
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});
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it(`write ${filename}.blob ${content.length} (Blob)`, async () => {
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try {
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unlinkSync(filename + ".blob");
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} catch (e) {}
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var bytes = new Blob([content]);
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await Bun.write(filename + ".blob", bytes);
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expect(await Bun.file(filename + ".blob").text()).toBe(content);
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try {
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unlinkSync(filename + ".blob");
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} catch (e) {}
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});
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}
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});
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it("Bun.file not found returns ENOENT", async () => {
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try {
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await gcTick();
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await Bun.file("/does/not/exist.txt").text();
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await gcTick();
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} catch (exception) {
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expect(exception.code).toBe("ENOENT");
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}
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await gcTick();
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});
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it("Bun.write('out.txt', 'string')", async () => {
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for (let erase of [true, false]) {
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if (erase) {
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try {
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fs.unlinkSync(path.join("/tmp", "out.txt"));
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} catch (e) {}
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}
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await gcTick();
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expect(await Bun.write("/tmp/out.txt", "string")).toBe("string".length);
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await gcTick();
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const out = Bun.file("/tmp/out.txt");
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await gcTick();
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expect(await out.text()).toBe("string");
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await gcTick();
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expect(await out.text()).toBe(fs.readFileSync("/tmp/out.txt", "utf8"));
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await gcTick();
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}
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});
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it("Bun.file -> Bun.file", async () => {
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try {
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fs.unlinkSync(path.join("/tmp", "fetch.js.in"));
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} catch (e) {}
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await gcTick();
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try {
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fs.unlinkSync(path.join("/tmp", "fetch.js.out"));
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} catch (e) {}
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await gcTick();
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const file = path.join(import.meta.dir, "fetch.js.txt");
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await gcTick();
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const text = fs.readFileSync(file, "utf8");
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fs.writeFileSync("/tmp/fetch.js.in", text);
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await gcTick();
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{
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const result = await Bun.write(
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Bun.file("/tmp/fetch.js.out"),
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Bun.file("/tmp/fetch.js.in"),
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);
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await gcTick();
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expect(await Bun.file("/tmp/fetch.js.out").text()).toBe(text);
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await gcTick();
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}
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{
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await Bun.write(
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Bun.file("/tmp/fetch.js.in").slice(0, (text.length / 2) | 0),
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Bun.file("/tmp/fetch.js.out"),
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);
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expect(await Bun.file("/tmp/fetch.js.in").text()).toBe(
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text.substring(0, (text.length / 2) | 0),
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);
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}
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{
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await gcTick();
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await Bun.write("/tmp/fetch.js.in", Bun.file("/tmp/fetch.js.out"));
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await gcTick();
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expect(await Bun.file("/tmp/fetch.js.in").text()).toBe(text);
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}
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});
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it("Bun.file", async () => {
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const file = path.join(import.meta.dir, "fetch.js.txt");
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await gcTick();
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expect(await Bun.file(file).text()).toBe(fs.readFileSync(file, "utf8"));
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await gcTick();
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});
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it("Bun.file as a Blob", async () => {
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const filePath = path.join(import.meta.path, "../fetch.js.txt");
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const fixture = fs.readFileSync(filePath, "utf8");
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// this is a Blob object with the same interface as the one returned by fetch
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// internally, instead of a byte array, it stores the file path!
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// this enables several performance optimizations
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var blob = Bun.file(filePath);
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await gcTick();
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// now it reads "./fetch.js.txt" from the filesystem
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// it's lazy, only loads once we ask for it
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// if it fails, the promise will reject at this point
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expect(await blob.text()).toBe(fixture);
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await gcTick();
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// BEHAVIOR CHANGE IN BUN V0.3.0 - size is never set
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// now that it's loaded, the size updates
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// expect(blob.size).toBe(fixture.length);
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// await gcTick();
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// and it only loads once for _all_ blobs pointing to that file path
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// until all references are released
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expect((await blob.arrayBuffer()).byteLength).toBe(fixture.length);
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await gcTick();
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const array = new Uint8Array(await blob.arrayBuffer());
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await gcTick();
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const text = fixture;
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withoutAggressiveGC(() => {
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for (let i = 0; i < text.length; i++) {
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expect(array[i]).toBe(text.charCodeAt(i));
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}
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});
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await gcTick();
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expect(blob.size).toBe(fixture.length);
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blob = null;
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await gcTick();
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await new Promise((resolve) => setTimeout(resolve, 1));
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var blob = Bun.file(filePath);
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expect(blob.size).toBe(fixture.length);
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});
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it("Response -> Bun.file", async () => {
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const file = path.join(import.meta.dir, "fetch.js.txt");
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await gcTick();
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const text = fs.readFileSync(file, "utf8");
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await gcTick();
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const response = new Response(Bun.file(file));
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await gcTick();
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expect(await response.text()).toBe(text);
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await gcTick();
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});
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it("Bun.file -> Response", async () => {
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// ensure the file doesn't already exist
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try {
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fs.unlinkSync("/tmp/fetch.js.out");
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} catch {}
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await gcTick();
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const file = path.join(import.meta.dir, "fetch.js.txt");
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await gcTick();
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const text = fs.readFileSync(file, "utf8");
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await gcTick();
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const resp = await fetch("https://example.com");
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await gcTick();
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expect(await Bun.write("/tmp/fetch.js.out", resp)).toBe(text.length);
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await gcTick();
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expect(await Bun.file("/tmp/fetch.js.out").text()).toBe(text);
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await gcTick();
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});
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it("Response -> Bun.file -> Response -> text", async () => {
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await gcTick();
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const file = path.join(import.meta.dir, "fetch.js.txt");
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await gcTick();
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const text = fs.readFileSync(file, "utf8");
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await gcTick();
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const response = new Response(Bun.file(file));
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await gcTick();
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const response2 = response.clone();
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await gcTick();
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expect(await response2.text()).toBe(text);
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await gcTick();
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});
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it("Bun.write('output.html', '')", async () => {
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await Bun.write("/tmp/output.html", "lalalala");
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expect(await Bun.write("/tmp/output.html", "")).toBe(0);
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await Bun.write("/tmp/output.html", "lalalala");
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expect(await Bun.file("/tmp/output.html").text()).toBe("lalalala");
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});
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it("Bun.write(Bun.stdout, 'Bun.write STDOUT TEST')", async () => {
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expect(await Bun.write(Bun.stdout, "\nBun.write STDOUT TEST\n\n")).toBe(24);
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});
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it("Bun.write(Bun.stderr, 'Bun.write STDERR TEST')", async () => {
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expect(await Bun.write(Bun.stderr, "\nBun.write STDERR TEST\n\n")).toBe(24);
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});
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it("Bun.write(Bun.stdout, new TextEncoder().encode('Bun.write STDOUT TEST'))", async () => {
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expect(
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await Bun.write(
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Bun.stdout,
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new TextEncoder().encode("\nBun.write STDOUT TEST\n\n"),
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),
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).toBe(24);
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});
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it("Bun.write(Bun.stderr, 'new TextEncoder().encode(Bun.write STDERR TEST'))", async () => {
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expect(
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await Bun.write(
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Bun.stderr,
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new TextEncoder().encode("\nBun.write STDERR TEST\n\n"),
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),
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).toBe(24);
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});
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// FLAKY TEST
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// Since Bun.file is resolved lazily, this needs to specifically be checked
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it("Bun.write('output.html', HTMLRewriter.transform(Bun.file)))", async (done) => {
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var rewriter = new HTMLRewriter();
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rewriter.on("div", {
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element(element) {
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element.setInnerContent("<blink>it worked!</blink>", { html: true });
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},
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});
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await Bun.write("/tmp/html-rewriter.txt.js", "<div>hello</div>");
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var input = new Response(Bun.file("/tmp/html-rewriter.txt.js"));
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var output = rewriter.transform(input);
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const outpath = `/tmp/html-rewriter.${Date.now()}.html`;
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await Bun.write(outpath, output);
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expect(await Bun.file(outpath).text()).toBe(
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"<div><blink>it worked!</blink></div>",
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);
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done();
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});
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