errors.test.ts•3.25 kB
import { describe, it, expect } from 'vitest';
import { FirefoxDisconnectedError, isDisconnectionError } from '../../src/utils/errors.js';
describe('FirefoxDisconnectedError', () => {
it('should create error with default message', () => {
const error = new FirefoxDisconnectedError();
expect(error.name).toBe('FirefoxDisconnectedError');
expect(error.message).toContain('Firefox browser is not connected');
expect(error.message).toContain('ask the user to restart');
expect(error.message).toContain('firefox-devtools-mcp server');
});
it('should create error with custom reason', () => {
const error = new FirefoxDisconnectedError('Browser was closed');
expect(error.message).toContain('Browser was closed');
expect(error.message).toContain('Firefox browser is not connected');
expect(error.message).toContain('restart Claude Code or the MCP connection');
});
it('should be instanceof Error', () => {
const error = new FirefoxDisconnectedError();
expect(error).toBeInstanceOf(Error);
expect(error).toBeInstanceOf(FirefoxDisconnectedError);
});
});
describe('isDisconnectionError', () => {
it('should return true for FirefoxDisconnectedError', () => {
const error = new FirefoxDisconnectedError();
expect(isDisconnectionError(error)).toBe(true);
});
it('should return true for session deleted errors', () => {
const error = new Error('Session deleted because of page crash');
expect(isDisconnectionError(error)).toBe(true);
});
it('should return true for no such window errors', () => {
const error = new Error('no such window: target window already closed');
expect(isDisconnectionError(error)).toBe(true);
});
it('should return true for no such session errors', () => {
const error = new Error('no such session');
expect(isDisconnectionError(error)).toBe(true);
});
it('should return true for connection refused errors', () => {
const error = new Error('ECONNREFUSED: Connection refused');
expect(isDisconnectionError(error)).toBe(true);
});
it('should return true for driver not connected errors', () => {
const error = new Error('Driver not connected');
expect(isDisconnectionError(error)).toBe(true);
});
it('should return true for not connected errors', () => {
const error = new Error('Not connected');
expect(isDisconnectionError(error)).toBe(true);
});
it('should return true for invalid session id errors', () => {
const error = new Error('invalid session id');
expect(isDisconnectionError(error)).toBe(true);
});
it('should return true for browsing context discarded errors', () => {
const error = new Error('browsing context has been discarded');
expect(isDisconnectionError(error)).toBe(true);
});
it('should return false for unrelated errors', () => {
const error = new Error('Element not found');
expect(isDisconnectionError(error)).toBe(false);
});
it('should return false for non-Error values', () => {
expect(isDisconnectionError('string error')).toBe(false);
expect(isDisconnectionError(null)).toBe(false);
expect(isDisconnectionError(undefined)).toBe(false);
expect(isDisconnectionError(42)).toBe(false);
});
});