33 lines
1.3 KiB
TypeScript
33 lines
1.3 KiB
TypeScript
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import { expect, it } from "vitest";
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import { analyzeJavaScriptSemantics } from "./javascriptSemanticAnalysis.js";
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import { analyzeJavaScriptStaticSource } from "./javascriptStaticAnalysis.js";
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import { RETURNED_REFERENCE_WIDENING_LIMITATION } from "./javascriptSemanticCoverage.js";
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it("preserves possible ambient effects and discloses projection widening in source coverage", () => {
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const source = `
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function expose() { return Map.prototype; }
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let cursor = { target: expose };
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function walk(flag) {
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while (flag) cursor = cursor.next;
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patch(cursor.target());
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}
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fetch('/preserved');
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new Map().get('/candidate');
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`;
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const ir = analyzeJavaScriptSemantics(source);
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expect(ir.coverage).toMatchObject({ status: "partial", omittedCount: 0 });
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expect(ir.coverage.widenedReturnedReferences?.length).toBeGreaterThan(0);
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expect(ir.limitations).toContain(RETURNED_REFERENCE_WIDENING_LIMITATION);
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const facts = analyzeJavaScriptStaticSource(source);
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expect(facts.limitations).toContain(RETURNED_REFERENCE_WIDENING_LIMITATION);
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expect(facts.endpoints).toEqual(
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expect.arrayContaining([
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expect.objectContaining({ value: "/preserved", mechanism: "call:fetch" }),
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expect.objectContaining({
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value: "/candidate",
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interpretation: "candidate",
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}),
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]),
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);
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});
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