54 lines
1.8 KiB
TypeScript
54 lines
1.8 KiB
TypeScript
import { describe, it, expect, expectTypeOf, vi } from "vitest";
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import { withAudit, type Audited } from "@/with-audit";
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import type { IAuditLog } from "@/audit-log.interface";
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import { isAudited } from "@repo/core-shared/conformance";
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function makeAuditLog(): IAuditLog {
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return {
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record: vi.fn().mockResolvedValue(undefined),
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eraseSubject: vi.fn().mockResolvedValue(undefined),
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};
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}
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describe("withAudit", () => {
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it("returns an Audited<F>", () => {
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const auditLog = makeAuditLog();
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const fn = async (_input: { id: string }) => ({ ok: true });
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const wrapped = withAudit(auditLog, fn);
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expectTypeOf(wrapped).toMatchTypeOf<Audited<typeof fn>>();
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});
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it("attaches __audited as a non-enumerable property on the wrapped function", () => {
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const auditLog = makeAuditLog();
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const fn = async () => ({ ok: true });
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const wrapped = withAudit(auditLog, fn);
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expect(isAudited(wrapped)).toBe(true);
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expect(Object.keys(wrapped)).not.toContain("__audited");
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});
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it("does NOT pollute the original input function with the brand", () => {
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const auditLog = makeAuditLog();
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const fn = async () => ({ ok: true });
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const wrapped = withAudit(auditLog, fn);
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expect(isAudited(fn)).toBe(false);
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expect(wrapped).not.toBe(fn);
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});
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it("passes input and output through unchanged", async () => {
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const auditLog = makeAuditLog();
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const fn = async (input: { id: string }) => ({ ok: true, id: input.id });
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const wrapped = withAudit(auditLog, fn);
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const result = await wrapped({ id: "abc" });
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expect(result).toEqual({ ok: true, id: "abc" });
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});
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it("propagates errors", async () => {
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const auditLog = makeAuditLog();
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const err = new Error("boom");
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const wrapped = withAudit(auditLog, async () => {
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throw err;
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});
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await expect(wrapped()).rejects.toBe(err);
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});
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});
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