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rea/src/application/javascript/JavaScriptApplicationSignedZero.test.ts
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import { writeFile } from "node:fs/promises";
import { join } from "node:path";
import { expect, it } from "vitest";
import { createTestTempDirectory } from "../../../tests/fixtures/temporaryDirectory.js";
import { javascriptApplicationAnalysisResultSchema } from "../../domain/javascript/javascriptApplicationAnalysis.js";
import { analyzeJavaScriptApplication } from "./JavaScriptApplicationService.js";
it("does not expose a resolved positive-zero literal for a negative-zero export", async () => {
const root = await createTestTempDirectory("rea-signed-zero-");
await writeFile(join(root, "app.js"), "export const value = -0;\n");
const result = await analyzeJavaScriptApplication({
input_path: root,
format: "directory",
});
if (!result.ok) throw result.error;
const analysis = javascriptApplicationAnalysisResultSchema.parse(
result.value.normalized_result,
);
expect(
analysis.semantic_graph.nodes.filter(
({ kind, properties }) => kind === "literal" && properties.value === 0,
),
).toEqual([]);
});