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111 lines
3.8 KiB
Python
111 lines
3.8 KiB
Python
import pytest
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from mcp_types import TextContent
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from mcp.server.mcpserver import Context
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from mcp.server.mcpserver.prompts.base import Prompt, UserMessage
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from mcp.server.mcpserver.prompts.manager import PromptManager
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class TestPromptManager:
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def test_add_prompt(self):
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"""Test adding a prompt to the manager."""
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def fn() -> str: # pragma: no cover
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return "Hello, world!"
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manager = PromptManager()
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prompt = Prompt.from_function(fn)
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added = manager.add_prompt(prompt)
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assert added == prompt
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assert manager.get_prompt("fn") == prompt
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def test_add_duplicate_prompt(self, caplog: pytest.LogCaptureFixture):
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"""Test adding the same prompt twice."""
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def fn() -> str: # pragma: no cover
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return "Hello, world!"
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manager = PromptManager()
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prompt = Prompt.from_function(fn)
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first = manager.add_prompt(prompt)
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second = manager.add_prompt(prompt)
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assert first == second
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assert "Prompt already exists" in caplog.text
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def test_disable_warn_on_duplicate_prompts(self, caplog: pytest.LogCaptureFixture):
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"""Test disabling warning on duplicate prompts."""
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def fn() -> str: # pragma: no cover
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return "Hello, world!"
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manager = PromptManager(warn_on_duplicate_prompts=False)
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prompt = Prompt.from_function(fn)
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first = manager.add_prompt(prompt)
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second = manager.add_prompt(prompt)
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assert first == second
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assert "Prompt already exists" not in caplog.text
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def test_list_prompts(self):
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"""Test listing all prompts."""
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def fn1() -> str: # pragma: no cover
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return "Hello, world!"
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def fn2() -> str: # pragma: no cover
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return "Goodbye, world!"
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manager = PromptManager()
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prompt1 = Prompt.from_function(fn1)
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prompt2 = Prompt.from_function(fn2)
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manager.add_prompt(prompt1)
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manager.add_prompt(prompt2)
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prompts = manager.list_prompts()
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assert len(prompts) == 2
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assert prompts == [prompt1, prompt2]
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@pytest.mark.anyio
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async def test_render_prompt(self):
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"""Test rendering a prompt."""
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def fn() -> str:
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return "Hello, world!"
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manager = PromptManager()
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prompt = Prompt.from_function(fn)
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manager.add_prompt(prompt)
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messages = await manager.render_prompt("fn", None, Context())
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assert messages == [UserMessage(content=TextContent(type="text", text="Hello, world!"))]
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@pytest.mark.anyio
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async def test_render_prompt_with_args(self):
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"""Test rendering a prompt with arguments."""
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def fn(name: str) -> str:
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return f"Hello, {name}!"
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manager = PromptManager()
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prompt = Prompt.from_function(fn)
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manager.add_prompt(prompt)
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messages = await manager.render_prompt("fn", {"name": "World"}, Context())
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assert messages == [UserMessage(content=TextContent(type="text", text="Hello, World!"))]
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@pytest.mark.anyio
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async def test_render_unknown_prompt(self):
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"""Test rendering a non-existent prompt."""
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manager = PromptManager()
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with pytest.raises(ValueError, match="Unknown prompt: unknown"):
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await manager.render_prompt("unknown", None, Context())
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@pytest.mark.anyio
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async def test_render_prompt_with_missing_args(self):
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"""Test rendering a prompt with missing required arguments."""
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def fn(name: str) -> str: # pragma: no cover
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return f"Hello, {name}!"
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manager = PromptManager()
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prompt = Prompt.from_function(fn)
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manager.add_prompt(prompt)
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with pytest.raises(ValueError, match="Missing required arguments"):
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await manager.render_prompt("fn", None, Context())
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