UI测试

class WebUITester:
    """Web UI测试"""
    
    def __init__(self, driver: WebDriver):
        self.driver = driver
    
    def test_chat_interface(self):
        """聊天界面测试"""
        # 打开页面
        self.driver.get("https://app.example.com")
        
        # 输入消息
        input_box = self.driver.find_element(By.ID, "chat-input")
        input_box.send_keys("你好，请介绍一下自己")
        
        # 发送
        send_btn = self.driver.find_element(By.ID, "send-btn")
        send_btn.click()
        
        # 等待响应
        wait = WebDriverWait(self.driver, 10)
        response = wait.until(
            EC.presence_of_element_located((By.ID, "chat-response"))
        )
        
        # 验证响应不为空
        assert len(response.text) > 0
        
        # 验证加载动画消失
        loader = self.driver.find_element(By.CLASS_NAME, "loading")
        assert not loader.is_displayed()
    
    def test_streaming_display(self):
        """流式显示测试"""
        self.driver.get("https://app.example.com")
        
        input_box = self.driver.find_element(By.ID, "chat-input")
        input_box.send_keys("请写一首诗")
        self.driver.find_element(By.ID, "send-btn").click()
        
        # 验证逐字显示效果
        response_area = self.driver.find_element(By.ID, "chat-response")
        initial_text = response_area.text
        
        time.sleep(2)
        updated_text = response_area.text
        
        assert len(updated_text) > len(initial_text)

class MobileUITester:
    """移动端UI测试"""
    
    def test_app_launch(self):
        """应用启动测试"""
        # 冷启动时间
        start_time = time.time()
        self.app.launch()
        elapsed = time.time() - start_time
        assert elapsed < 3.0  # 冷启动不超过3秒
    
    def test_voice_input(self):
        """语音输入测试"""
        # 点击语音按钮
        self.driver.find_element(By.ID, "voice-btn").click()
        
        # 等待语音识别中状态
        wait = WebDriverWait(self.driver, 10)
        wait.until(EC.presence_of_element_located(
            (By.CLASS_NAME, "listening")
        ))
        
        # 模拟语音输入
        self.simulate_voice("你好")
        
        # 验证识别结果
        result = self.driver.find_element(By.ID, "voice-result")
        assert result.text == "你好"

class VisualRegressionTester:
    """视觉回归测试"""
    
    def compare(self, current_screenshot: Image,
                baseline_screenshot: Image) -> DiffResult:
        """
        截图对比测试
        
        方法:
        1. 像素级对比
        2. 感知哈希对比
        3. 结构相似性(SSIM)
        """
        # 像素级差异
        pixel_diff = self._pixel_compare(
            current_screenshot, baseline_screenshot
        )
        
        # SSIM对比
        ssim = self._structural_similarity(
            current_screenshot, baseline_screenshot
        )
        
        # 判断是否通过
        threshold = 0.95  # SSIM阈值
        pixel_diff_pct = pixel_diff / (
            current_screenshot.width * current_screenshot.height
        )
        
        return DiffResult(
            ssim_score=ssim,
            pixel_diff_pct=pixel_diff_pct,
            passed=ssim >= threshold and pixel_diff_pct < 0.01,
            diff_image=self._generate_diff_image(
                current_screenshot, baseline_screenshot
            ),
        )