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Enable additional client conformance scenarios (#1763)

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Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
This commit is contained in:
Stephen Halter 2026-07-28 13:39:26 -07:00 • committed by GitHub
commit e8b80f0e6d
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1 changed files with 971 additions and 44 deletions
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91
tests/ModelContextProtocol.ConformanceClient/Program.cs
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@ -40,10 +40,10 @@ McpClientOptions options = new()
// The default client now prefers the 2026-07-28 protocol (probing with server/discover and
// falling back to an initialize handshake). The "initialize" and "sse-retry" scenarios
// specifically exercise the initialize handshake and SSE resumability (removed in the
// 2026-07-28 protocol) and strictly expect initialize as the first message, so pin them to the
// latest stable version. Other scenarios run on the 2026-07-28 default and exercise the
// server/discover probe plus the transparent initialize-handshake fallback.
if (scenario is "initialize" or "sse-retry")
// 2026-07-28 protocol) and strictly expect initialize as the first message. The alpha.9
// json-schema-ref-no-deref server also uses a bundled Node transport that rejects the draft
// protocol header before tools/list. Pin these scenarios to the latest stable version.
if (scenario is "initialize" or "sse-retry" or "json-schema-ref-no-deref")
{
options.ProtocolVersion = "2025-11-25";
}
@ -72,21 +72,10 @@ if (callbackPort == 0)
var clientRedirectUri = new Uri($"http://localhost:{callbackPort}/callback");
// Read conformance context for scenarios that provide additional data (e.g., pre-registered credentials).
string? preRegisteredClientId = null;
string? preRegisteredClientSecret = null;
var conformanceContext = Environment.GetEnvironmentVariable("MCP_CONFORMANCE_CONTEXT");
if (!string.IsNullOrEmpty(conformanceContext))
{
using var doc = JsonDocument.Parse(conformanceContext);
if (doc.RootElement.TryGetProperty("client_id", out var clientIdEl))
{
preRegisteredClientId = clientIdEl.GetString();
}
if (doc.RootElement.TryGetProperty("client_secret", out var clientSecretEl))
{
preRegisteredClientSecret = clientSecretEl.GetString();
}
}
var parsedConformanceContext = ConformanceContext.Parse(conformanceContext);
var preRegisteredClientId = parsedConformanceContext?.GetString("client_id");
var preRegisteredClientSecret = parsedConformanceContext?.GetString("client_secret");
var oauthOptions = new ModelContextProtocol.Authentication.ClientOAuthOptions
{
@ -110,12 +99,55 @@ else
};
}
var clientTransport = new HttpClientTransport(new()
var endpointUri = new Uri(endpoint);
HttpClientTransport clientTransport;
if (scenario is "auth/client-credentials-basic" or "auth/client-credentials-jwt")
{
Endpoint = new Uri(endpoint),
TransportMode = HttpTransportMode.StreamableHttp,
OAuth = oauthOptions,
}, loggerFactory: consoleLoggerFactory);
var context = parsedConformanceContext
?? throw new InvalidOperationException($"Scenario '{scenario}' requires MCP_CONFORMANCE_CONTEXT.");
var accessToken = await ConformanceOAuthHelpers.AcquireClientCredentialsTokenAsync(
endpointUri,
context,
usePrivateKeyJwt: scenario == "auth/client-credentials-jwt",
CancellationToken.None);
clientTransport = new HttpClientTransport(
new()
{
Endpoint = endpointUri,
TransportMode = HttpTransportMode.StreamableHttp,
},
ConformanceOAuthHelpers.CreateBearerHttpClient(accessToken),
consoleLoggerFactory,
ownsHttpClient: true);
}
else if (scenario == "auth/enterprise-managed-authorization")
{
var context = parsedConformanceContext
?? throw new InvalidOperationException($"Scenario '{scenario}' requires MCP_CONFORMANCE_CONTEXT.");
var accessToken = await ConformanceOAuthHelpers.AcquireEnterpriseTokenAsync(
endpointUri,
context,
consoleLoggerFactory,
CancellationToken.None);
clientTransport = new HttpClientTransport(
new()
{
Endpoint = endpointUri,
TransportMode = HttpTransportMode.StreamableHttp,
},
ConformanceOAuthHelpers.CreateBearerHttpClient(accessToken),
consoleLoggerFactory,
ownsHttpClient: true);
}
else
{
clientTransport = new HttpClientTransport(new()
{
Endpoint = endpointUri,
TransportMode = HttpTransportMode.StreamableHttp,
OAuth = oauthOptions,
}, loggerFactory: consoleLoggerFactory);
}
try
{
@ -191,6 +223,19 @@ try
}
break;
}
case "auth/authorization-server-migration":
{
await mcpClient.ListToolsAsync();
await mcpClient.ListToolsAsync();
break;
}
case "auth/client-credentials-basic":
case "auth/client-credentials-jwt":
case "auth/enterprise-managed-authorization":
{
await mcpClient.ListToolsAsync();
break;
}
case "http-standard-headers":
{
// List and call tools to test Mcp-Method and Mcp-Name headers