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Implementation for SEP-2243 Http Standardization (#1553)

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Co-authored-by: Tarek Mahmoud Sayed <tarekms@microsoft.com>
Co-authored-by: Tarek Mahmoud Sayed <tarekms@ntdev.microsoft.com>
Co-authored-by: Tarek Mahmoud Sayed <10833894+tarekgh@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
This commit is contained in:
Mike Kistler 2026-05-14 17:39:37 -05:00 • committed by GitHub
commit b8c4d951ec
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1 changed files with 2854 additions and 28 deletions
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132
tests/ModelContextProtocol.Tests/Server/McpServerToolTests.cs
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@ -1177,4 +1177,136 @@ public partial class McpServerToolTests
[JsonSerializable(typeof(DateTimeOffset?))]
[JsonSerializable(typeof(Person))]
partial class JsonContext2 : JsonSerializerContext;
// ===== x-mcp-header tests =====
[Fact]
public void Create_WithMcpHeaderAttribute_AddsXMcpHeaderExtension()
{
var tool = McpServerTool.Create(typeof(McpHeaderToolType).GetMethod(nameof(McpHeaderToolType.ToolWithSingleHeader))!);
var schema = tool.ProtocolTool.InputSchema;
var props = schema.GetProperty("properties");
var regionProp = props.GetProperty("region");
Assert.True(regionProp.TryGetProperty("x-mcp-header", out var headerValue));
Assert.Equal("Region", headerValue.GetString());
}
[Fact]
public void Create_WithMultipleMcpHeaderAttributes_AddsAllExtensions()
{
var tool = McpServerTool.Create(typeof(McpHeaderToolType).GetMethod(nameof(McpHeaderToolType.ToolWithMultipleHeaders))!);
var schema = tool.ProtocolTool.InputSchema;
var props = schema.GetProperty("properties");
var regionProp = props.GetProperty("region");
Assert.True(regionProp.TryGetProperty("x-mcp-header", out var regionHeader));
Assert.Equal("Region", regionHeader.GetString());
var tenantProp = props.GetProperty("tenantId");
Assert.True(tenantProp.TryGetProperty("x-mcp-header", out var tenantHeader));
Assert.Equal("TenantId", tenantHeader.GetString());
}
[Fact]
public void Create_WithDuplicateHeaderNames_ThrowsInvalidOperationException()
{
Assert.Throws<InvalidOperationException>(() =>
McpServerTool.Create(typeof(McpHeaderToolType).GetMethod(nameof(McpHeaderToolType.ToolWithDuplicateHeaders))!));
}
[Fact]
public void Create_WithMcpHeaderOnNonPrimitiveType_ThrowsInvalidOperationException()
{
Assert.Throws<InvalidOperationException>(() =>
McpServerTool.Create(typeof(McpHeaderToolType).GetMethod(nameof(McpHeaderToolType.ToolWithNonPrimitiveHeader))!));
}
[Fact]
public void Create_WithMcpHeaderOnNumericType_AddsExtension()
{
var tool = McpServerTool.Create(typeof(McpHeaderToolType).GetMethod(nameof(McpHeaderToolType.ToolWithNumericHeader))!);
var schema = tool.ProtocolTool.InputSchema;
var props = schema.GetProperty("properties");
var countProp = props.GetProperty("count");
Assert.True(countProp.TryGetProperty("x-mcp-header", out var headerValue));
Assert.Equal("Count", headerValue.GetString());
}
[Fact]
public void Create_WithMcpHeaderOnBooleanType_AddsExtension()
{
var tool = McpServerTool.Create(typeof(McpHeaderToolType).GetMethod(nameof(McpHeaderToolType.ToolWithBooleanHeader))!);
var schema = tool.ProtocolTool.InputSchema;
var props = schema.GetProperty("properties");
var flagProp = props.GetProperty("flag");
Assert.True(flagProp.TryGetProperty("x-mcp-header", out var headerValue));
Assert.Equal("Flag", headerValue.GetString());
}
[Fact]
public void Create_WithMcpHeaderOnNullableType_AddsExtension()
{
var tool = McpServerTool.Create(typeof(McpHeaderToolType).GetMethod(nameof(McpHeaderToolType.ToolWithNullableHeader))!);
var schema = tool.ProtocolTool.InputSchema;
var props = schema.GetProperty("properties");
var countProp = props.GetProperty("count");
Assert.True(countProp.TryGetProperty("x-mcp-header", out var headerValue));
Assert.Equal("Count", headerValue.GetString());
}
[Fact]
public void Create_WithoutMcpHeaderAttribute_NoXMcpHeaderExtension()
{
var tool = McpServerTool.Create(typeof(McpHeaderToolType).GetMethod(nameof(McpHeaderToolType.ToolWithoutHeaders))!);
var schema = tool.ProtocolTool.InputSchema;
var props = schema.GetProperty("properties");
var regionProp = props.GetProperty("region");
Assert.False(regionProp.TryGetProperty("x-mcp-header", out _));
}
private static class McpHeaderToolType
{
[McpServerTool]
public static string ToolWithSingleHeader(
[McpHeader("Region")] string region,
string query)
=> "result";
[McpServerTool]
public static string ToolWithMultipleHeaders(
[McpHeader("Region")] string region,
[McpHeader("TenantId")] string tenantId,
string query)
=> "result";
[McpServerTool]
public static string ToolWithDuplicateHeaders(
[McpHeader("Region")] string region1,
[McpHeader("REGION")] string region2)
=> "result";
[McpServerTool]
public static string ToolWithNonPrimitiveHeader(
[McpHeader("Data")] object data)
=> "result";
[McpServerTool]
public static string ToolWithNumericHeader(
[McpHeader("Count")] int count)
=> "result";
[McpServerTool]
public static string ToolWithBooleanHeader(
[McpHeader("Flag")] bool flag)
=> "result";
[McpServerTool]
public static string ToolWithNullableHeader(
[McpHeader("Count")] int? count)
=> "result";
[McpServerTool]
public static string ToolWithoutHeaders(string region, string query)
=> "result";
}
}