70 lines
2.5 KiB
TypeScript
70 lines
2.5 KiB
TypeScript
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import { describe, it, expect } from "@jest/globals";
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import {
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Business,
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Control,
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Data,
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SettlementException,
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Timing,
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classify,
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route,
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} from "../../src/services/exceptionManager";
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describe("ExceptionManager — architecture note §12", () => {
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describe("classification taxonomy", () => {
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it("builds the four §12 classes via factory functions", () => {
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expect(Timing.dispatch().exceptionClass).toBe("timing");
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expect(Timing.dispatch().code).toBe("dispatch_timeout");
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expect(Data.valueMismatch().exceptionClass).toBe("data");
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expect(Data.documentHashMismatch().code).toBe("document_hash_mismatch");
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expect(Control.unauthorized("nobody").exceptionClass).toBe("control");
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expect(Control.duplicate("ev-1").code).toBe("duplicate_event");
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expect(Business.manualStop("operator halted").exceptionClass).toBe("business");
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expect(Business.policyViolation({ rule: "LTV" }).code).toBe("policy_rule_violation");
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});
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it("classify() tags network/timeout errors as system/network_error", () => {
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const ex = classify(new Error("ETIMEDOUT connect"));
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expect(ex.exceptionClass).toBe("system");
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expect(ex.code).toBe("network_error");
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});
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it("classify() tags postgres errors as system/database_error", () => {
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const ex = classify(new Error("postgres connection refused"));
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expect(ex.exceptionClass).toBe("system");
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expect(ex.code).toBe("database_error");
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});
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it("classify() is idempotent for SettlementException inputs", () => {
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const original = Data.valueMismatch({ field: "amount" });
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expect(classify(original)).toBe(original);
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});
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});
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describe("deterministic routing", () => {
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const cases: Array<[SettlementException, string]> = [
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[Timing.dispatch(), "retry"],
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[Timing.settlement(), "retry"],
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[Data.valueMismatch(), "abort_transaction"],
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[Data.documentHashMismatch(), "abort_transaction"],
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[Control.missingApproval(), "escalate"],
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[Control.unauthorized("x"), "escalate"],
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[Control.duplicate("ev"), "dead_letter"],
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[Business.manualStop("halt"), "abort_transaction"],
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[Business.policyViolation({ rule: "LTV" }), "escalate"],
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];
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it.each(cases)("routes %j to %s", (ex, expected) => {
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expect(route(ex)).toBe(expected);
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});
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it("network errors retry; non-network system errors dead-letter", () => {
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expect(route(classify(new Error("ETIMEDOUT")))).toBe("retry");
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const dbErr = classify(new Error("postgres broken"));
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expect(route(dbErr)).toBe("dead_letter");
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});
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});
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});
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