Skip SEP-2243 conformance tests until scenarios are available in package

The http-standard-headers, http-custom-headers, http-invalid-tool-headers,
http-header-validation, and http-custom-header-server-validation scenarios
are not yet published in @modelcontextprotocol/conformance. Gate these tests
on HasSep2243Scenarios which checks for package version >= 0.2.0.

Author: Tarek Mahmoud Sayed

tests/Common/Utils/NodeHelpers.cs

@@ -167,6 +167,44 @@ public static bool IsNodeInstalled()
         }
     }
 
+    /// <summary>
+    /// Checks whether the SEP-2243 conformance scenarios are available by reading
+    /// the conformance package version from the repo's package.json.
+    /// The http-standard-headers, http-custom-headers, http-invalid-tool-headers,
+    /// http-header-validation, and http-custom-header-server-validation scenarios
+    /// require a conformance package version that includes SEP-2243 support.
+    /// </summary>
+    public static bool HasSep2243Scenarios()
+    {
+        try
+        {
+            var repoRoot = FindRepoRoot();
+            var packageJsonPath = Path.Combine(repoRoot, "package.json");
+            if (!File.Exists(packageJsonPath))
+            {
+                return false;
+            }
+
+            var json = System.Text.Json.JsonDocument.Parse(File.ReadAllText(packageJsonPath));
+            if (json.RootElement.TryGetProperty("dependencies", out var deps) &&
+                deps.TryGetProperty("@modelcontextprotocol/conformance", out var versionElement))
+            {
+                var versionStr = versionElement.GetString();
+                if (versionStr is not null && Version.TryParse(versionStr, out var version))
+                {
+                    // SEP-2243 scenarios are expected in conformance package >= 0.2.0
+                    return version >= new Version(0, 2, 0);
+                }
+            }
+
+            return false;
+        }
+        catch
+        {
+            return false;
+        }
+    }
+
     private static ProcessStartInfo NpmStartInfo(string arguments, string workingDirectory)
     {
         if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))

tests/ModelContextProtocol.AspNetCore.Tests/ClientConformanceTests.cs

@@ -16,6 +16,7 @@ public class ClientConformanceTests
 
     // Public static property required for SkipUnless attribute
     public static bool IsNodeInstalled => NodeHelpers.IsNodeInstalled();
+    public static bool HasSep2243Scenarios => NodeHelpers.HasSep2243Scenarios();
 
     public ClientConformanceTests(ITestOutputHelper output)
     {
@@ -62,7 +63,7 @@ public async Task RunConformanceTest(string scenario)
     }
 
     // HTTP Standardization (SEP-2243)
-    [Theory(Skip = "Node.js is not installed. Skipping client conformance tests.", SkipUnless = nameof(IsNodeInstalled))]
+    [Theory(Skip = "SEP-2243 conformance scenarios not yet available.", SkipUnless = nameof(HasSep2243Scenarios))]
     [InlineData("http-standard-headers")]
     [InlineData("http-custom-headers")]
     [InlineData("http-invalid-tool-headers")]

tests/ModelContextProtocol.AspNetCore.Tests/ServerConformanceTests.cs

@@ -139,6 +139,7 @@ public async Task RunPendingConformanceTest_ServerSsePolling()
     public async Task RunConformanceTest_HttpHeaderValidation()
     {
         Assert.SkipWhen(!NodeHelpers.IsNodeInstalled(), "Node.js is not installed. Skipping conformance tests.");
+        Assert.SkipWhen(!NodeHelpers.HasSep2243Scenarios(), "SEP-2243 conformance scenarios not yet available.");
 
         var result = await RunConformanceTestsAsync($"server --url {fixture.ServerUrl} --scenario http-header-validation");
 
@@ -150,6 +151,7 @@ public async Task RunConformanceTest_HttpHeaderValidation()
     public async Task RunConformanceTest_HttpCustomHeaderServerValidation()
     {
         Assert.SkipWhen(!NodeHelpers.IsNodeInstalled(), "Node.js is not installed. Skipping conformance tests.");
+        Assert.SkipWhen(!NodeHelpers.HasSep2243Scenarios(), "SEP-2243 conformance scenarios not yet available.");
 
         var result = await RunConformanceTestsAsync($"server --url {fixture.ServerUrl} --scenario http-custom-header-server-validation");