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prompts/tests/registry/models/test_prompt_validation.py
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203 lines
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Python

from __future__ import annotations
from pathlib import PurePosixPath
import pytest
from pydantic import ValidationError
from personal_mcp.registry.ingest.document import MarkdownDocument
from personal_mcp.registry.ingest.prompt import PromptFilesBundle
from personal_mcp.registry.load import _build_prompt_record
from personal_mcp.registry.load import get_docs_registry
from personal_mcp.registry.models.registry import PromptSummaryRecord
from tests.registry.models.test_document_validation import assert_model_is_frozen
from tests.registry.models.test_document_validation import make_markdown_document
from tests.registry.models.test_document_validation import make_prompt_frontmatter_payload
from tests.registry.models.test_document_validation import make_skill_frontmatter_payload
pytestmark = pytest.mark.unit
def _make_prompt_bundle(
*,
slug: str,
frontmatter: str | None,
other_files: tuple[str, ...] = (),
) -> PromptFilesBundle:
prompt = make_markdown_document(
f"prompts/{slug}/PROMPT.md",
frontmatter=frontmatter,
)
other = tuple(make_markdown_document(f"prompts/{slug}/{filename}") for filename in other_files)
return PromptFilesBundle(slug=slug, prompt=prompt, other=other)
class TestPromptValidationGates:
"""Gate-oriented validation coverage for prompt conversion."""
class TestGate1LayoutValidation:
"""Gate 1: enforce required source shape before metadata parsing."""
def test_missing_frontmatter_fails_fast(self) -> None:
"""Ensures conversion rejects missing prompt frontmatter at the layout gate."""
bundle = _make_prompt_bundle(slug="initial", frontmatter=None)
with pytest.raises(ValueError, match="missing YAML frontmatter"):
_build_prompt_record(bundle=bundle)
class TestGate2MetadataValidation:
"""Gate 2: validate prompt metadata via pydantic models."""
def test_rejects_non_semver_version(self) -> None:
"""Ensures semver violations fail during prompt model validation."""
frontmatter = make_prompt_frontmatter_payload(prompt_id="initial", version="not-semver")
bundle = _make_prompt_bundle(slug="initial", frontmatter=frontmatter)
with pytest.raises(ValidationError, match="version must be semver"):
_build_prompt_record(bundle=bundle)
def test_rejects_invalid_argument_names(self) -> None:
"""Ensures prompt argument keys use Python-identifier naming rules."""
frontmatter = make_prompt_frontmatter_payload(
prompt_id="initial",
arguments={
"invalid-name": {
"required": True,
}
},
)
bundle = _make_prompt_bundle(slug="initial", frontmatter=frontmatter)
with pytest.raises(ValidationError, match="invalid prompt argument name"):
_build_prompt_record(bundle=bundle)
def test_rejects_missing_primary_capability(self) -> None:
"""Ensures canonical prompt document capability is required."""
frontmatter = make_prompt_frontmatter_payload(
prompt_id="initial",
capabilities=("resource://catalog/prompts_index",),
)
bundle = _make_prompt_bundle(slug="initial", frontmatter=frontmatter)
with pytest.raises(ValueError, match="capabilities must include"):
_build_prompt_record(bundle=bundle)
class TestGate3ResourceValidation:
"""Gate 3: resolve prompt document resources and argument schema."""
def test_assigns_canonical_document_uri(self) -> None:
"""Ensures prompt records emit canonical document URIs."""
frontmatter = make_prompt_frontmatter_payload(prompt_id="initial")
bundle = _make_prompt_bundle(slug="initial", frontmatter=frontmatter)
record = _build_prompt_record(bundle=bundle)
assert record.document_uri == "resource://prompts/initial/document"
assert record.document_relpath == PurePosixPath("prompts/initial/PROMPT.md")
def test_preserves_argument_schema(self) -> None:
"""Ensures argument metadata survives conversion unchanged."""
frontmatter = make_prompt_frontmatter_payload(
prompt_id="initial",
arguments={
"topic": {
"required": True,
"description": "topic to discuss",
}
},
)
bundle = _make_prompt_bundle(slug="initial", frontmatter=frontmatter)
record = _build_prompt_record(bundle=bundle)
assert record.arguments["topic"].required is True
assert record.arguments["topic"].description == "topic to discuss"
class TestGate4GraphValidation:
"""Gate 4: validate cross-entity identifier coherence."""
def test_prompt_id_collision_with_skill_id_fails(self, monkeypatch: pytest.MonkeyPatch) -> None:
"""Ensures prompt and skill ids cannot collide in published registry."""
skill_frontmatter = make_skill_frontmatter_payload(skill_id="shared")
prompt_frontmatter = make_prompt_frontmatter_payload(prompt_id="shared")
documents = {
PurePosixPath("skills/shared/SKILL.md"): make_markdown_document(
"skills/shared/SKILL.md",
frontmatter=skill_frontmatter,
),
PurePosixPath("prompts/shared/PROMPT.md"): make_markdown_document(
"prompts/shared/PROMPT.md",
frontmatter=prompt_frontmatter,
),
}
def fake_from_root(_cls, _root):
return documents
monkeypatch.setattr(MarkdownDocument, "from_root", classmethod(fake_from_root))
get_docs_registry.cache_clear()
try:
with pytest.raises(ValueError, match="prompt_id collides with existing skill_id"):
get_docs_registry()
finally:
get_docs_registry.cache_clear()
class TestGate5ContractValidation:
"""Gate 5: validate model_dump contract shape for API surfaces."""
def test_prompt_record_model_dump_contains_contract_fields(self) -> None:
"""Ensures prompt record serialization includes canonical fields."""
frontmatter = make_prompt_frontmatter_payload(prompt_id="initial")
bundle = _make_prompt_bundle(slug="initial", frontmatter=frontmatter)
record = _build_prompt_record(bundle=bundle)
dumped = record.model_dump()
assert dumped["prompt_id"] == "initial"
assert dumped["document_uri"] == "resource://prompts/initial/document"
assert "arguments" in dumped
assert "document_content" in dumped
def test_prompt_summary_projection_stays_stable(self) -> None:
"""Ensures prompt summary shape remains deterministic for index responses."""
frontmatter = make_prompt_frontmatter_payload(prompt_id="initial")
bundle = _make_prompt_bundle(slug="initial", frontmatter=frontmatter)
record = _build_prompt_record(bundle=bundle)
summary = PromptSummaryRecord.from_record(record)
assert summary.model_dump() == {
"prompt_id": "initial",
"name": "initial",
"description": "demo prompt",
"tags": ("testing",),
"capabilities": ("resource://prompts/initial/document",),
"document_uri": "resource://prompts/initial/document",
"version": "1.0.0",
}
class TestGate6FreezeValidation:
"""Gate 6: ensure immutable runtime records."""
def test_prompt_record_instance_is_frozen(self) -> None:
"""Ensures validated prompt records cannot be mutated after creation."""
frontmatter = make_prompt_frontmatter_payload(prompt_id="initial")
bundle = _make_prompt_bundle(slug="initial", frontmatter=frontmatter)
record = _build_prompt_record(bundle=bundle)
assert_model_is_frozen(record, attr="name", value="mutated")
def test_argument_entry_values_are_frozen(self) -> None:
"""Ensures nested prompt argument entries are immutable after publication."""
frontmatter = make_prompt_frontmatter_payload(
prompt_id="initial",
arguments={
"topic": {
"required": True,
}
},
)
bundle = _make_prompt_bundle(slug="initial", frontmatter=frontmatter)
record = _build_prompt_record(bundle=bundle)
assert_model_is_frozen(record.arguments["topic"], attr="required", value=False)