import { describe, it, expect, afterEach, vi } from 'vitest';
import { ProcessEnvironment } from '../../../src/implementations/environment-impl.js';
describe('ProcessEnvironment', () => {
afterEach(() => {
delete process.env.TEST_ENV_SNAPSHOT;
vi.restoreAllMocks();
});
it('captures a snapshot of environment variables at construction', () => {
process.env.TEST_ENV_SNAPSHOT = 'initial';
const env = new ProcessEnvironment();
expect(env.get('TEST_ENV_SNAPSHOT')).toBe('initial');
process.env.TEST_ENV_SNAPSHOT = 'mutated';
expect(env.get('TEST_ENV_SNAPSHOT')).toBe('initial');
});
it('returns a defensive copy from getAll', () => {
process.env.TEST_ENV_SNAPSHOT = 'value';
const env = new ProcessEnvironment();
const snapshot = env.getAll();
snapshot.TEST_ENV_SNAPSHOT = 'changed';
expect(env.get('TEST_ENV_SNAPSHOT')).toBe('value');
expect(env.getAll().TEST_ENV_SNAPSHOT).toBe('value');
});
it('returns current working directory', () => {
const fakeCwd = 'C:\\fake-path';
vi.spyOn(process, 'cwd').mockReturnValue(fakeCwd);
const env = new ProcessEnvironment();
expect(env.getCurrentWorkingDirectory()).toBe(fakeCwd);
});
});
