57 lines
2.1 KiB
TypeScript
57 lines
2.1 KiB
TypeScript
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/**
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* parseErrorDetail extracts structured error details from request.ts
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* formatted errors ("message - {json}") and from raw JSON messages,
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* so the UI can show server-provided details instead of opaque text.
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*/
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import { describe, it, expect } from "vitest";
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import { parseErrorDetail } from "./error";
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describe("parseErrorDetail", () => {
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it("returns null for non-Error values", () => {
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expect(parseErrorDetail("just a string")).toBeNull();
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expect(parseErrorDetail(42)).toBeNull();
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expect(parseErrorDetail(null)).toBeNull();
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expect(parseErrorDetail(undefined)).toBeNull();
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});
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it("returns null for a plain-text error message", () => {
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expect(parseErrorDetail(new Error("network is down"))).toBeNull();
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});
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it("parses JSON after the ' - ' separator used by request.ts", () => {
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const error = new Error('Request failed - {"detail": "quota exceeded"}');
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// The detail key is unwrapped so callers get the server message directly
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expect(parseErrorDetail(error)).toBe("quota exceeded");
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});
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it("unwraps the detail key when present", () => {
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const error = new Error('400 Bad Request - {"detail": "invalid key"}');
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expect(parseErrorDetail(error)).toBe("invalid key");
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});
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it("returns the parsed object when there is no detail key", () => {
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const error = new Error('500 - {"code": "internal"}');
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expect(parseErrorDetail(error)).toEqual({ code: "internal" });
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});
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it("falls back to parsing the whole message when no separator", () => {
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const error = new Error('{"detail": "rate limited"}');
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expect(parseErrorDetail(error)).toBe("rate limited");
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});
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it("returns null when the separator payload is not valid JSON", () => {
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const error = new Error("failed - not json at all");
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expect(parseErrorDetail(error)).toBeNull();
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});
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it("returns null when the whole message is not JSON", () => {
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const error = new Error("{broken json");
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expect(parseErrorDetail(error)).toBeNull();
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});
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it("returns null when the whole message parses to a non-object", () => {
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const error = new Error("42");
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expect(parseErrorDetail(error)).toBeNull();
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});
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});
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