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import { describe } from "bun:test";
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import { itBundled } from "./expectBundled";
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describe("bundler", () => {
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// Exercises the bundler's chunking/linking internals end-to-end: code
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// splitting produces cross-chunk imports (sorted deterministically), CSS is
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// compiled into its own chunk, symbols are renamed across chunks, and every
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// output is content-hashed. Keeps that machinery covered after the types that
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// back it were relocated across the bundler crate.
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itBundled("regression/SplittingWithSharedChunkAndCSS", {
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files: {
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"/entry.js": /* js */ `
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import "./styles.css";
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const { shared } = await import("./shared.js");
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const { a } = await import("./a.js");
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const { b } = await import("./b.js");
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console.log(shared(), a(), b());
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`,
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"/shared.js": /* js */ `
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export function shared() { return "shared"; }
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`,
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"/a.js": /* js */ `
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import { shared } from "./shared.js";
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export function a() { return shared() + "-a"; }
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`,
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"/b.js": /* js */ `
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import { shared } from "./shared.js";
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export function b() { return shared() + "-b"; }
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`,
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"/styles.css": `.x { color: red; }`,
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},
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entryPoints: ["/entry.js"],
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splitting: true,
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outdir: "/out",
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target: "browser",
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format: "esm",
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run: {
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file: "/out/entry.js",
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stdout: "shared shared-a shared-b",
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},
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});
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// https://x.com/jeroendotdot/status/1740651288239460384?s=46&t=0Uhw6mmGT650_9M2pXUsCw
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itBundled("regression/PublicPathCLIFlagNotWorking", {
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files: {
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"/entry.js": `
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import foo from './1.png';
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if (!foo.startsWith("https://example.com/foo")) {
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throw new Error("Unexpected public path: " + foo);
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}
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`,
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"/1.png": "abcdefgh",
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},
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entryPoints: ["/entry.js"],
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outdir: "/out",
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publicPath: "https://example.com/foo",
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run: {
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file: "/out/entry.js",
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},
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});
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// https://github.com/oven-sh/bun/issues/2946
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itBundled("regression/InvalidIdentifierInFileName#2946", {
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files: {
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"/entry.js": "import foo from './1.png';\nconsole.log(foo);",
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"/1.png": "abcdefgh",
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},
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entryPoints: ["/entry.js"],
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outdir: "/out",
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run: {
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file: "/out/entry.js",
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},
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});
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itBundled("regression/MergeAdjacentDecl#2942", {
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files: {
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"/shared.js": `
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// Current version.
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export var VERSION = '1.13.6';
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// Establish the root object, \`window\` (\`self\`) in the browser, \`global\`
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// on the server, or \`this\` in some virtual machines. We use \`self\`
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// instead of \`window\` for \`WebWorker\` support.
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export var root = (typeof self == 'object' && self.self === self && self) ||
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(typeof global == 'object' && global.global === global && global) ||
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Function('return this')() ||
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{};
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// Save bytes in the minified (but not gzipped) version:
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export var ArrayProto = Array.prototype, ObjProto = Object.prototype;
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export var SymbolProto = typeof Symbol !== 'undefined' ? Symbol.prototype : null;
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// Create quick reference variables for speed access to core prototypes.
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export var push = ArrayProto.push,
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slice = ArrayProto.slice,
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toString = ObjProto.toString,
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hasOwnProperty = ObjProto.hasOwnProperty;
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// Modern feature detection.
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export var supportsArrayBuffer = typeof ArrayBuffer !== 'undefined',
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supportsDataView = typeof DataView !== 'undefined';
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// All **ECMAScript 5+** native function implementations that we hope to use
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// are declared here.
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export var nativeIsArray = Array.isArray,
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nativeKeys = Object.keys,
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nativeCreate = Object.create,
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nativeIsView = supportsArrayBuffer && ArrayBuffer.isView;
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// Create references to these builtin functions because we override them.
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export var _isNaN = isNaN,
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_isFinite = isFinite;
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// Keys in IE < 9 that won't be iterated by \`for key in ...\` and thus missed.
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export var hasEnumBug = !{toString: null}.propertyIsEnumerable('toString');
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export var nonEnumerableProps = ['valueOf', 'isPrototypeOf', 'toString',
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'propertyIsEnumerable', 'hasOwnProperty', 'toLocaleString'];
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// The largest integer that can be represented exactly.
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export var MAX_ARRAY_INDEX = Math.pow(2, 53) - 1;
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`,
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// This was a race condition, so we want to add a lot of files to maximize the chances of hitting it
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"/a.js": "import * as ABC from './shared.js';; console.log(ABC);",
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"/b.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/c.js": "import * as ABC from './shared.js';; console.log(ABC);",
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"/d.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/e.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/g.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/h.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/i.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/j.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/k.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/l.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/m.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/n.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/a_1.js": "import * as ABC from './shared.js';; console.log(ABC);",
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"/a_2.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/a_3.js": "import * as ABC from './shared.js';; console.log(ABC);",
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"/a_4.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/a_5.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/a_6.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/a_7.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/a_8.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/a_9.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/a_10.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/a_11.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/a_12.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/a_13.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/b_1.js": "import * as ABC from './shared.js';; console.log(ABC);",
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"/b_2.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/b_3.js": "import * as ABC from './shared.js';; console.log(ABC);",
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"/b_4.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/b_5.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/b_6.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/b_7.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/b_8.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/b_9.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/b_10.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/b_11.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/b_12.js": "import * as ABC from './shared.js'; console.log(ABC);",
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"/b_13.js": "import * as ABC from './shared.js'; console.log(ABC);",
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},
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minifySyntax: true,
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entryPoints: [
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"/a.js",
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"/b.js",
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"/c.js",
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"/d.js",
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"/e.js",
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"/g.js",
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"/h.js",
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"/i.js",
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"/j.js",
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"/k.js",
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"/l.js",
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"/m.js",
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"/n.js",
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"/a_1.js",
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"/a_2.js",
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"/a_3.js",
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"/a_4.js",
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"/a_5.js",
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"/a_6.js",
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"/a_7.js",
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"/a_8.js",
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"/a_9.js",
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"/a_10.js",
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"/a_11.js",
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"/a_12.js",
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"/a_13.js",
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"/b_1.js",
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"/b_2.js",
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"/b_3.js",
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"/b_4.js",
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"/b_5.js",
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"/b_6.js",
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"/b_7.js",
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"/b_8.js",
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"/b_9.js",
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"/b_10.js",
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"/b_11.js",
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"/b_12.js",
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"/b_13.js",
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],
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});
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// https://github.com/oven-sh/bun/issues/2948
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itBundled("regression/ReassignLocal#2948", {
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files: {
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"/entry.js": `
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import { Buffer } from 'node:buffer';
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export function schemaEncode(data) {
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const filename_len = Buffer.byteLength(data.filename);
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const buf = Buffer.allocUnsafe(29 + filename_len);
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buf.writeUInt8(1);
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for (let i=0; i<3; i++) buf.writeUInt32LE(data.to[i], 1 + i * 4);
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buf.writeDoubleLE(data.random, 13);
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buf.writeUInt16LE(data.page, 21);
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let offset = 23;
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offset = buf.writeUInt16LE(filename_len, offset);
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offset += buf.write(data.filename, offset);
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buf.writeUInt32LE(data.from, offset);
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return buf;
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}
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schemaEncode({filename: "heyyyy", to: [1,2,3], page: 123, random: Math.random(), from: 158})
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`,
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},
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minifySyntax: true,
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target: "bun",
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run: {
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file: "/entry.js",
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},
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});
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// https://github.com/oven-sh/bun/issues/3660
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itBundled("regression/StringDecoder#3660", {
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files: {
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"/entry.js": `
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import { StringDecoder } from 'string_decoder'
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const decoder = new StringDecoder('utf8')
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const buf = Buffer.from([0xe4, 0xbd, 0xa0, 0xe5, 0xa5, 0xbd])
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const str = decoder.write(buf)
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console.log(str)
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`,
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},
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run: { stdout: "你好" },
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});
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itBundled("regression/WindowsBackslashAssertion1#9974", {
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backend: "cli",
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files: {
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"/test/entry.ts": `
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import { loadFonts } from "../base";
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console.log(loadFonts);
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`,
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},
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entryPointsRaw: ["test/entry.ts", "--external", "*"],
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});
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itBundled(`regression/NODE_PATHBuild cli`, {
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files: {
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"/entry.js": `
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import MyClass from 'MyClass';
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console.log(new MyClass().constructor.name);
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`,
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"/src/MyClass.js": `
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export default class MyClass {}
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`,
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},
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entryPoints: ["/entry.js"],
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backend: "cli",
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env: {
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NODE_PATH: "{{root}}/src",
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},
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run: {
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stdout: "MyClass",
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},
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});
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itBundled("regression/NamespaceTracking#12337", {
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files: {
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"/entry.ts": /* ts */ `
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(0, eval)('globalThis.ca' + 'pture = () => {};')
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export namespace Test {
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export function anInstance(): Test {
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return {
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level1: {
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level2: {
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level3: Level1.Level2.Level3.anInstance(),
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}
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},
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}
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}
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export namespace Level1 {
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export namespace Level2 {
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export function anInstance(): Level2 {
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return {
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level3: Level3.anInstance(),
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}
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}
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export enum Enum {
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Value = 1,
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}
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export namespace Level3 {
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export type Value = Level3['value']
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export function anInstance(): Level3 {
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return {
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value: 'Hello, World!',
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}
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}
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capture(Enum.Value);
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}
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}
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capture(Level2.Enum.Value);
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}
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}
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if(Test.anInstance().level1.level2.level3.value !== 'Hello, World!')
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throw new Error('fail')
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capture(Test.Level1.Level2.Enum.Value);
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`,
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},
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run: true,
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capture: ["1 /* Value */", "1 /* Value */", "1 /* Value */"],
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});
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});
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