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test/auth.test.js

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+'use strict';
+
+const test = require('node:test');
+const assert = require('node:assert');
+const { AuthStateMachine } = require('../src/bot/auth');
+
+test('AuthStateMachine: register success via translate', () => {
+  const sm = new AuthStateMachine({});
+  sm.markRegisterSent();
+  sm.markAwaitRegister();
+  const r = sm.consume({ text: '', translate: 'commands.register.success' });
+  assert.strictEqual(r, 'auth_done');
+  assert.strictEqual(sm.isDone(), true);
+});
+
+test('AuthStateMachine: register success via phrase', () => {
+  const sm = new AuthStateMachine({ register_success: ['successfully registered'] });
+  sm.markRegisterSent();
+  sm.markAwaitRegister();
+  const r = sm.consume({ text: 'You have been successfully registered' });
+  assert.strictEqual(r, 'auth_done');
+});
+
+test('AuthStateMachine: already registered → login', () => {
+  const sm = new AuthStateMachine({});
+  const r = sm.consume({ text: 'You are already registered' });
+  assert.strictEqual(r, 'login_sent');
+});
+
+test('AuthStateMachine: login success', () => {
+  const sm = new AuthStateMachine({});
+  sm.markLoginSent();
+  sm.markAwaitLogin();
+  const r = sm.consume({ text: 'You have been logged in' });
+  assert.strictEqual(r, 'auth_done');
+});
+
+test('AuthStateMachine: out-of-order consume is no-op', () => {
+  const sm = new AuthStateMachine({});
+  sm.markRegisterSent();
+  sm.markAwaitRegister();
+  sm.consume({ text: 'You have been logged in' });
+  assert.strictEqual(sm.state, 'AWAIT_REGISTER');
+});
+
+test('AuthStateMachine: done consumes nothing', () => {
+  const sm = new AuthStateMachine({});
+  sm.markRegisterSent();
+  sm.markAwaitRegister();
+  sm.consume({ translate: 'commands.register.success' });
+  const r = sm.consume({ translate: 'commands.register.success' });
+  assert.strictEqual(r, null);
+});