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Client-side 2026-07-28 support: .discover()/.adopt() + Client(mode=); request-metadata green (#2950)

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Max 2026-06-25 16:09:23 +02:00 • committed by GitHub
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6
tests/client/test_sampling_callback.py
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@ -42,7 +42,7 @@ async def test_sampling_callback():
return True
# Test with sampling callback
async with Client(server, sampling_callback=sampling_callback) as client:
async with Client(server, sampling_callback=sampling_callback, mode="legacy") as client:
# Make a request to trigger sampling callback
result = await client.call_tool("test_sampling", {"message": "Test message for sampling"})
assert result.is_error is False
@ -52,7 +52,7 @@ async def test_sampling_callback():
# Without a sampling callback the client responds with an MCPError, which the
# tool body doesn't catch — the wrapper re-raises it as a top-level JSON-RPC
# error rather than wrapping it as an isError result.
async with Client(server) as client:
async with Client(server, mode="legacy") as client:
with pytest.raises(MCPError) as exc_info:
await client.call_tool("test_sampling", {"message": "Test message for sampling"})
assert exc_info.value.error.code == INVALID_REQUEST
@ -93,7 +93,7 @@ async def test_create_message_backwards_compat_single_content():
assert not hasattr(result, "content_as_list") or not callable(getattr(result, "content_as_list", None))
return True
async with Client(server, sampling_callback=sampling_callback) as client:
async with Client(server, sampling_callback=sampling_callback, mode="legacy") as client:
result = await client.call_tool("test_backwards_compat", {"message": "Test"})
assert result.is_error is False
assert isinstance(result.content[0], TextContent)