65 lines
2.4 KiB
TypeScript
65 lines
2.4 KiB
TypeScript
import { expect, it } from "vitest";
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import { collectJavaScriptExports } from "./javascriptAstFingerprint.js";
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import { analyzeJavaScriptStaticSource } from "./javascriptStaticAnalysis.js";
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import { parseJavaScriptSource } from "./javascriptSourceParser.js";
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const memberChain = ".next".repeat(12_000);
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const ordinaryMemberChain = ".next".repeat(64);
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it("collects a 12,000-member CommonJS export path without recursion", () => {
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const file = parseJavaScriptSource(`exports${memberChain}.last = 1;`);
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if (file === null) throw new Error("Expected valid JavaScript");
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expect(collectJavaScriptExports(file).values).toEqual([
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`${"next.".repeat(12_000)}last`,
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]);
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});
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it("preserves empty, dynamic, this, and private member path behavior", () => {
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const file = parseJavaScriptSource(`
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exports[""].value = 1;
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exports[""] = 0;
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exports[key].value = 2;
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this.exports.ignored = 3;
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class Example { #private = 0; read() { this.#private = 1; } }
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`);
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if (file === null) throw new Error("Expected valid JavaScript");
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expect(collectJavaScriptExports(file).values).toEqual([
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"",
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".value",
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"key.value",
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]);
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});
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it("keeps left-first and outer-member-first bundler runtime matches", () => {
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const source = `
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(globalThis.webpackChunkLeft || globalThis.webpackChunkRight).push([[1], { 1: function() {} }]);
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globalThis.webpackChunkOuter.webpackChunkInner.push([[2], { 2: function() {} }]);
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`;
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const analysis = analyzeJavaScriptStaticSource(source);
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expect(
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analysis.bundler_registrations.find(({ chunk_keys }) =>
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chunk_keys.includes("1"),
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)?.runtime,
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).toBe("webpackChunkLeft");
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expect(
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analysis.bundler_registrations.find(({ chunk_keys }) =>
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chunk_keys.includes("2"),
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)?.runtime,
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).toBe("webpackChunkInner");
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});
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it("recognizes a bundler runtime through nested member names", () => {
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const source = `globalThis.webpackChunkApp${ordinaryMemberChain}.push([[1], { 1: function(module) { module.exports.ok = 42; } }]);`;
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const analysis = analyzeJavaScriptStaticSource(source);
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expect(analysis.parse_status).toBe("complete");
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expect(analysis.parse_error_count).toBe(0);
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expect(analysis.bundler_registrations).toHaveLength(1);
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expect(analysis.bundler_registrations[0]).toMatchObject({
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bundler: "webpack",
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runtime: "webpackChunkApp",
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chunk_keys: ["1"],
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modules: [expect.objectContaining({ exports: ["ok"] })],
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});
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});
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