Implement engine-bridge v2 plugin masquerade (#10)

tests/Recordingtest.EngineBridge.IntegrationTests/HmEgHttpSnapshotTests.cs

@@ -0,0 +1,66 @@
+using Recordingtest.EngineBridge.Client;
+using Xunit;
+
+namespace Recordingtest.EngineBridge.IntegrationTests;
+
+public class HmEgHttpSnapshotTests
+{
+    [Fact]
+    public void Client_SelectionEndpoint_ReturnsIds()
+    {
+        using var srv = new FakeBridgeServer();
+        srv.Responses["/selection"] = "{\"selected_ids\":[\"a\",\"b\"]}";
+        using var c = new HmEgHttpSnapshot(srv.BaseUrl);
+        Assert.Equal(new[] { "a", "b" }, c.SelectedObjectIds);
+    }
+
+    [Fact]
+    public void Client_CameraEndpoint_ReturnsCameraState()
+    {
+        using var srv = new FakeBridgeServer();
+        srv.Responses["/camera"] = "{\"eye\":[1,2,3],\"target\":[4,5,6],\"up\":[0,0,1],\"fov\":50}";
+        using var c = new HmEgHttpSnapshot(srv.BaseUrl);
+        var cam = c.Camera;
+        Assert.Equal(new double[] { 1, 2, 3 }, cam.EyePoint);
+        Assert.Equal(new double[] { 4, 5, 6 }, cam.Target);
+        Assert.Equal(50, cam.Fov);
+    }
+
+    [Fact]
+    public void Client_SceneEndpoint_ReturnsSceneSummary()
+    {
+        using var srv = new FakeBridgeServer();
+        srv.Responses["/scene"] = "{\"object_count\":42,\"document_path\":\"C:/m.hmeg\"}";
+        using var c = new HmEgHttpSnapshot(srv.BaseUrl);
+        var s = c.Scene;
+        Assert.Equal(42, s.ObjectCount);
+        Assert.Equal("C:/m.hmeg", s.DocumentPath);
+    }
+
+    [Fact]
+    public void Client_RenderEndpoint_ReturnsIsComplete()
+    {
+        using var srv = new FakeBridgeServer();
+        srv.Responses["/render"] = "{\"complete\":true}";
+        using var c = new HmEgHttpSnapshot(srv.BaseUrl);
+        Assert.True(c.IsRenderComplete);
+    }
+
+    [Fact]
+    public void Client_HealthEndpoint_ReturnsOk()
+    {
+        using var srv = new FakeBridgeServer();
+        srv.Responses["/health"] = "{\"status\":\"ok\",\"port\":1}";
+        using var c = new HmEgHttpSnapshot(srv.BaseUrl);
+        Assert.True(c.IsHealthy);
+    }
+
+    [Fact]
+    public void Client_Timeout_ThrowsEngineBridgeException()
+    {
+        using var srv = new FakeBridgeServer { ResponseDelay = TimeSpan.FromSeconds(5) };
+        srv.Responses["/selection"] = "{\"selected_ids\":[]}";
+        using var c = new HmEgHttpSnapshot(srv.BaseUrl, timeout: TimeSpan.FromMilliseconds(500));
+        Assert.Throws<EngineBridgeException>(() => _ = c.SelectedObjectIds);
+    }
+}