43 lines
1.4 KiB
TypeScript
43 lines
1.4 KiB
TypeScript
import { tryParseToolResultObject } from '$lib/utils';
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import { describe, expect, it } from 'vitest';
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describe('tryParseToolResultObject', () => {
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it('returns null when no result is provided', () => {
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expect(tryParseToolResultObject(undefined)).toBeNull();
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expect(tryParseToolResultObject('')).toBeNull();
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});
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it('returns the parsed object when the result is JSON', () => {
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expect(tryParseToolResultObject('{"result":"ok","bytes":42}')).toEqual({
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bytes: 42,
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result: 'ok'
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});
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});
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it('returns null for JSON arrays (only objects are useful to callers)', () => {
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expect(tryParseToolResultObject('[1,2,3]')).toBeNull();
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});
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it('returns null for JSON primitives', () => {
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expect(tryParseToolResultObject('"raw string"')).toBeNull();
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expect(tryParseToolResultObject('42')).toBeNull();
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});
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it('returns null for invalid JSON', () => {
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expect(tryParseToolResultObject('not json')).toBeNull();
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expect(tryParseToolResultObject('{bad')).toBeNull();
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});
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});
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describe('tryParseToolResultObject gating', () => {
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it('parses JSON objects that start after leading whitespace', () => {
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expect(tryParseToolResultObject('\n {"result":"ok"}')).toEqual({ result: 'ok' });
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});
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it('skips the parse for large plain-text results', () => {
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// most tool results are file contents or stdout; the gate avoids a
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// doomed JSON.parse over the whole blob
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expect(tryParseToolResultObject(`${'stdout line\n'.repeat(2000)}`)).toBeNull();
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});
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});
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