验证码优化

tests/Jiaowu.Api.Tests/LazyCaptchaIntegrationTests.cs

@@ -0,0 +1,26 @@
+using Lazy.Captcha.Core;
+using Microsoft.Extensions.Caching.Distributed;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Jiaowu.Api.Tests;
+
+public sealed class LazyCaptchaIntegrationTests
+{
+    [Fact]
+    public void Generated_code_is_valid_once_and_returns_image_bytes()
+    {
+        var services = new ServiceCollection();
+        services.AddDistributedMemoryCache();
+        services.AddCaptcha(new ConfigurationBuilder().Build());
+        using var provider = services.BuildServiceProvider();
+        var captcha = provider.GetRequiredService<ICaptcha>();
+        var id = Guid.NewGuid().ToString("N");
+
+        var generated = captcha.Generate(id, expirySeconds: 120);
+
+        Assert.NotEmpty(generated.Bytes);
+        Assert.True(captcha.Validate(id, generated.Code));
+        Assert.False(captcha.Validate(id, generated.Code));
+    }
+}