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2026-09-02 09:38:45 +08:00
commit 8774b6cc44
128 changed files with 9382 additions and 0 deletions
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+namespace Yh.SchClass.OpenApi.Tests;
+
+/// <summary>
+/// 伪造 <see cref="HttpMessageHandler"/>：捕获最近一次请求并回放预设响应。
+/// 与 <c>Yh.Platform.OpenApi.Tests</c> 的 FakeHandler 同构，便于两个 SDK 的测试互相参照。
+/// </summary>
+public sealed class FakeHandler : HttpMessageHandler
+{
+    private readonly Func<HttpRequestMessage, string?, HttpResponseMessage> _responder;
+
+    public FakeHandler(Func<HttpRequestMessage, string?, HttpResponseMessage> responder)
+    {
+        _responder = responder;
+    }
+
+    /// <summary>最近一次捕获到的请求。</summary>
+    public HttpRequestMessage? LastRequest { get; private set; }
+
+    /// <summary>最近一次请求体（无请求体时为 null）。</summary>
+    public string? LastRequestBody { get; private set; }
+
+    /// <summary>最近一次请求体的 Content-Type（无请求体时为 null）。</summary>
+    public string? LastContentType { get; private set; }
+
+    protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
+    {
+        LastRequest = request;
+        if (request.Content == null)
+        {
+            LastRequestBody = null;
+            LastContentType = null;
+        }
+        else
+        {
+            LastRequestBody = await request.Content.ReadAsStringAsync(cancellationToken);
+            LastContentType = request.Content.Headers.ContentType?.MediaType;
+        }
+        return _responder(request, LastRequestBody);
+    }
+
+    /// <summary>回放一段固定 JSON（application/json）。</summary>
+    public static FakeHandler Json(HttpStatusCode statusCode, string json)
+        => new((_, _) => new HttpResponseMessage(statusCode)
+        {
+            Content = new StringContent(json, Encoding.UTF8, "application/json"),
+        });
+
+    /// <summary>回放指定状态码且无响应体（模拟 204 / 404 空响应）。</summary>
+    public static FakeHandler Empty(HttpStatusCode statusCode)
+        => new((_, _) => new HttpResponseMessage(statusCode));
+
+    /// <summary>回放纯文本响应（模拟非 JSON 的错误页）。</summary>
+    public static FakeHandler Text(HttpStatusCode statusCode, string text)
+        => new((_, _) => new HttpResponseMessage(statusCode)
+        {
+            Content = new StringContent(text, Encoding.UTF8, "text/plain"),
+        });
+}