import assert from 'node:assert/strict';
import { describe, it } from 'node:test';
import { FetchError } from '../dist/lib/errors.js';
import { createErrorWithCode } from '../dist/lib/errors.js';
import {
createToolErrorResponse,
handleToolError,
} from '../dist/lib/tool-errors.js';
describe('tool error responses', () => {
it('wraps structured content for tool errors', () => {
const response = createToolErrorResponse(
'Validation failed',
'https://example.com'
);
assert.equal(response.isError, true);
const parsed = JSON.parse((response.content[0] as { text: string })?.text);
assert.deepEqual(parsed, {
error: 'Validation failed',
url: 'https://example.com',
});
});
it('uses validation error message when present', () => {
const error = createErrorWithCode('Invalid input', 'VALIDATION_ERROR');
const response = handleToolError(error, 'https://example.com');
const parsed = JSON.parse((response.content[0] as { text: string })?.text);
assert.equal(parsed.error, 'Invalid input');
});
it('uses fetch error message when present', () => {
const error = new FetchError('Fetch failed', 'https://example.com', 502);
const response = handleToolError(error, 'https://example.com');
const parsed = JSON.parse((response.content[0] as { text: string })?.text);
assert.equal(parsed.error, 'Fetch failed');
});
it('falls back to default message for generic errors', () => {
const error = new Error('Boom');
const response = handleToolError(error, 'https://example.com');
const parsed = JSON.parse((response.content[0] as { text: string })?.text);
assert.equal(parsed.error, 'Operation failed: Boom');
});
it('handles unknown errors with default message', () => {
const response = handleToolError('oops', 'https://example.com');
const parsed = JSON.parse((response.content[0] as { text: string })?.text);
assert.equal(parsed.error, 'Operation failed: Unknown error');
});
});
