chore: import upstream snapshot with attribution

2026-07-13 12:10:27 +08:00
commit 49b9bb6724
992 changed files with 161690 additions and 0 deletions
@@ -0,0 +1,42 @@
+from unittest.mock import AsyncMock, MagicMock
+
+import pytest
+
+from mcp.server.context import ServerRequestContext
+from mcp.server.mcpserver import Context
+
+pytestmark = pytest.mark.anyio
+
+
+async def test_progress_token_zero_first_call():
+    """Regression: progress reporting must not be gated on a falsy token.
+
+    Issue #176: the original Context.report_progress treated token 0 as "no token" and
+    silently dropped progress. Context now delegates unconditionally to
+    ServerSession.report_progress (which calls DispatchContext.progress, whose JSONRPC
+    implementation gates on `is None`, not truthiness), so a request whose meta carries
+    a 0-valued token still emits all three reports.
+    """
+    mock_session = AsyncMock()
+    mock_session.report_progress = AsyncMock()
+
+    request_context = ServerRequestContext(
+        request_id="test-request",
+        session=mock_session,
+        method="tools/call",
+        meta={"progress_token": 0},
+        lifespan_context=None,
+        protocol_version="2025-11-25",
+    )
+
+    ctx = Context(request_context=request_context, mcp_server=MagicMock())
+
+    await ctx.report_progress(0, 10)
+    await ctx.report_progress(5, 10)
+    await ctx.report_progress(10, 10)
+
+    assert mock_session.report_progress.await_args_list == [
+        ((0, 10, None),),
+        ((5, 10, None),),
+        ((10, 10, None),),
+    ]