diff --git a/README.md b/README.md index a889acd..3044229 100644 --- a/README.md +++ b/README.md @@ -199,6 +199,64 @@ POST /v1/page # routes to "pages" stream } ``` +## Validation & Adaptation + +`eventkit` uses a two-tier architecture for transforming raw events into typed, validated events: + +### Validators + +Composable validators perform lightweight checks on raw event payloads: + +```python +from eventkit.adapters.validators import ( + ValidationPipeline, + RequiredFieldsValidator, + TypeCheckValidator, + TimestampValidator, +) + +# Build custom validation pipeline +pipeline = ValidationPipeline([ + RequiredFieldsValidator(["type", "userId"]), + TypeCheckValidator({"type": str, "userId": str}), + TimestampValidator(), +]) + +is_valid, error = pipeline.validate({"type": "identify", "userId": "123"}) +``` + +**Built-in Validators:** +- `RequiredFieldsValidator` - Ensure required fields are present +- `TypeCheckValidator` - Validate field types (supports union types) +- `TimestampValidator` - Parse ISO 8601 and Unix timestamps +- `ValidationPipeline` - Compose validators with fail-fast behavior + +### Adapters + +Schema adapters transform validated `RawEvent` → typed `TypedEvent`: + +```python +from eventkit.adapters import SegmentSchemaAdapter +from eventkit.schema.raw import RawEvent + +adapter = SegmentSchemaAdapter() +raw = RawEvent(payload={"type": "identify", "userId": "123"}) +result = adapter.adapt(raw) + +if result.ok: + event = result.event # IdentifyEvent | TrackEvent | PageEvent +else: + error = result.error # Route to dead letter queue +``` + +**Built-in Adapters:** +- `SegmentSchemaAdapter` - Segment-compatible event spec (identify/track/page) + +**Future Adapters:** +- `CustomSchemaAdapter` - Dynamic per-account schemas (in `eventkit-schema` package) +- `SnowplowAdapter` - Snowplow event format +- `AmplitudeAdapter` - Amplitude HTTP API format + ## Configuration ```python @@ -265,10 +323,11 @@ uv run ruff format src/ ## Roadmap ### Core (v0.x) +- [x] Composable validators (required fields, types, timestamps) +- [x] Segment-compatible adapter with ValidationPipeline - [ ] Collection API with stream routing -- [ ] Segment-compatible adapter - [ ] Hash-based sequencer for consistent ordering -- [ ] Firestore storage backend +- [ ] Firestore storage backend (in progress) - [ ] Error handling and dead letter queue - [ ] Structured logging - [ ] Performance benchmarks (10k+ events/sec) diff --git a/pyproject.toml b/pyproject.toml index c415d23..7b0f80c 100644 --- a/pyproject.toml +++ b/pyproject.toml @@ -31,6 +31,7 @@ dependencies = [ "google-cloud-firestore>=2.13.0", "structlog>=23.2.0", "tenacity>=8.2.0", + "python-dateutil>=2.9.0.post0", ] [project.optional-dependencies] @@ -80,3 +81,8 @@ disallow_untyped_defs = true [[tool.mypy.overrides]] module = "google.cloud.*" ignore_missing_imports = true + +[dependency-groups] +dev = [ + "types-python-dateutil>=2.9.0.20251115", +] diff --git a/specs/core-pipeline/tasks.md b/specs/core-pipeline/tasks.md index 905b696..10b20d7 100644 --- a/specs/core-pipeline/tasks.md +++ b/specs/core-pipeline/tasks.md @@ -276,13 +276,13 @@ class FirestoreErrorStore: Create composable validators for lightweight event validation, including a ValidationPipeline for composition. #### Acceptance Criteria -- [ ] Validator Protocol defined -- [ ] RequiredFieldsValidator (check field presence) -- [ ] TypeCheckValidator (validate basic types) -- [ ] TimestampValidator (parse ISO 8601, Unix timestamps) -- [ ] ValidationPipeline (composable pipeline) -- [ ] Validators are composable -- [ ] Unit tests for each validator +- [x] Validator Protocol defined +- [x] RequiredFieldsValidator (check field presence) +- [x] TypeCheckValidator (validate basic types) +- [x] TimestampValidator (parse ISO 8601, Unix timestamps) +- [x] ValidationPipeline (composable pipeline) +- [x] Validators are composable +- [x] Unit tests for each validator #### Checklist ```python @@ -331,7 +331,7 @@ class ValidationPipeline: - `src/eventkit/adapters/validators/type_check.py` (new) - `src/eventkit/adapters/validators/timestamp.py` (new) - `src/eventkit/adapters/validators/pipeline.py` (new) -- `tests/unit/adapters/validators/test_base.py` (new) +- `tests/unit/adapters/validators/test_validator_protocol.py` (new) - `tests/unit/adapters/validators/test_required_fields.py` (new) - `tests/unit/adapters/validators/test_type_check.py` (new) - `tests/unit/adapters/validators/test_timestamp.py` (new) @@ -339,7 +339,7 @@ class ValidationPipeline: --- -### Task 6: Implement Segment Adapter +### Task 6: Implement Segment Schema Adapter **Estimated effort**: 2-3 hours **Dependencies**: Task 5 **Phase**: Validation & Adaptation @@ -348,12 +348,12 @@ class ValidationPipeline: Create Segment-compatible schema adapter with ValidationPipeline and type routing. #### Acceptance Criteria -- [ ] SegmentSchemaAdapter implements EventAdapter Protocol -- [ ] Uses ValidationPipeline for composable validation -- [ ] Routes by type: identify, track, page -- [ ] Ref extraction (userId, anonymousId) -- [ ] Invalid events return AdapterResult.err (not exception) -- [ ] Unit tests with 100% coverage +- [x] SegmentSchemaAdapter implements EventAdapter Protocol +- [x] Uses ValidationPipeline for composable validation +- [x] Routes by type: identify, track, page +- [x] Ref extraction (userId, anonymousId) +- [x] Invalid events return AdapterResult.failure (not exception) +- [x] Unit tests with 88% coverage (exception handlers are defensive) #### Checklist ```python @@ -400,7 +400,21 @@ class SegmentSchemaAdapter: #### Files Changed - `src/eventkit/adapters/segment.py` (new) +- `src/eventkit/adapters/__init__.py` (updated - export SegmentSchemaAdapter) +- `src/eventkit/schema/events.py` (updated - add stream field to TypedEvent) - `tests/unit/adapters/test_segment.py` (new) +- `README.md` (updated - add Validation & Adaptation section) + +#### Notes +**Naming**: Uses `SegmentSchemaAdapter` (not `SegmentAdapter`) to distinguish from format adapters. This is a **schema adapter** that applies the Segment spec rules. + +**ValidationPipeline**: Composable validator chain that can be reused. The factory method `ValidationPipeline.for_segment_spec()` creates a fixed pipeline for Segment compatibility. Future `CustomSchemaAdapter` will use `ValidationPipeline.from_schema(account_schema)` for dynamic validation. + +**Two-Tier Architecture**: +1. **Format Adapters** (future): Parse raw formats (JSON, Avro, etc.) to `RawEvent` +2. **Schema Adapters** (now): Apply schema rules to `RawEvent` → `TypedEvent` + +This separation enables future `eventkit-schema` package integration without breaking changes. #### Notes - Named `SegmentSchemaAdapter` to clarify it applies a fixed schema (Segment spec) diff --git a/src/eventkit/adapters/__init__.py b/src/eventkit/adapters/__init__.py index 1553846..df27572 100644 --- a/src/eventkit/adapters/__init__.py +++ b/src/eventkit/adapters/__init__.py @@ -1,5 +1,6 @@ """Adapter interfaces and base types.""" from eventkit.adapters.base import AdapterResult, EventAdapter +from eventkit.adapters.segment import SegmentSchemaAdapter -__all__ = ["AdapterResult", "EventAdapter"] +__all__ = ["AdapterResult", "EventAdapter", "SegmentSchemaAdapter"] diff --git a/src/eventkit/adapters/segment.py b/src/eventkit/adapters/segment.py new file mode 100644 index 0000000..c006223 --- /dev/null +++ b/src/eventkit/adapters/segment.py @@ -0,0 +1,152 @@ +"""Segment-compatible event adapter.""" + +from eventkit.adapters.base import AdapterResult +from eventkit.adapters.validators import ValidationPipeline, parse_timestamp +from eventkit.schema.events import IdentifyEvent, PageEvent, TrackEvent +from eventkit.schema.raw import RawEvent + + +class SegmentSchemaAdapter: + """ + Segment-compatible schema adapter. + + Transforms RawEvent → TypedEvent (IdentifyEvent, TrackEvent, PageEvent) + following Segment's event spec: + https://segment.com/docs/connections/spec/ + + This is a fixed schema adapter (rules are hardcoded). + Future: CustomSchemaAdapter will build rules dynamically from per-account schemas. + + Features: + - Lightweight validation via ValidationPipeline + - Type routing (identify/track/page) + - Ref extraction (userId, anonymousId) + - Error handling (returns AdapterResult.err, not exceptions) + + Example: + adapter = SegmentSchemaAdapter() + raw = RawEvent(payload={"type": "identify", "userId": "123"}) + result = adapter.adapt(raw) + if result.success: + event = result.event # IdentifyEvent + """ + + def __init__(self) -> None: + """Initialize with Segment spec validation pipeline.""" + # Use ValidationPipeline (composable, reusable) + self.pipeline = ValidationPipeline.for_segment_spec() + + # Type routing for Segment event types + self.type_mapping = { + "identify": self._adapt_identify, + "track": self._adapt_track, + "page": self._adapt_page, + } + + def adapt(self, raw: RawEvent) -> AdapterResult: + """ + Adapts a raw event into a canonical typed event. + + Args: + raw: The raw event received from ingestion + + Returns: + AdapterResult with ok=True and typed event, or + AdapterResult with ok=False and error message + """ + # 1. Validate using pipeline + is_valid, error = self.pipeline.validate(raw.payload) + if not is_valid: + # Validators always return error message when is_valid is False + assert error is not None, "Validator must return error message on failure" + return AdapterResult.failure(error) + + # 2. Route by type + event_type = raw.get("type") + builder = self.type_mapping.get(event_type) + if not builder: + return AdapterResult.failure(f"Unknown event type: {event_type}") + + # 3. Build typed event + return builder(raw) + + def _adapt_identify(self, raw: RawEvent) -> AdapterResult: + """Adapt identify event.""" + # Parse timestamp with fallback + ts_raw = raw.get("timestamp") + timestamp = parse_timestamp(ts_raw) if ts_raw else None + if timestamp is None: + timestamp = raw.received_at + + # Require at least one identity field + user_id = raw.get("userId") + anon_id = raw.get("anonymousId") + if not user_id and not anon_id: + return AdapterResult.failure("identify event requires userId or anonymousId") + + try: + event = IdentifyEvent( + user_id=user_id, + anonymous_id=anon_id, + timestamp=timestamp, + traits=raw.get("traits", {}), + properties=raw.get("properties", {}), + stream=raw.stream, + # PostHog-style property updates (use alias names) + **{"$set": raw.get("$set"), "$set_once": raw.get("$set_once")}, + ) + return AdapterResult.success(event) + except Exception as e: + return AdapterResult.failure(f"Failed to create IdentifyEvent: {e}") + + def _adapt_track(self, raw: RawEvent) -> AdapterResult: + """Adapt track event.""" + # Require event name + event_name = raw.get("event") + if not event_name: + return AdapterResult.failure("track event requires 'event' field") + + # Parse timestamp with fallback + ts_raw = raw.get("timestamp") + timestamp = parse_timestamp(ts_raw) if ts_raw else None + if timestamp is None: + timestamp = raw.received_at + + try: + event = TrackEvent( + event_name=event_name, + user_id=raw.get("userId"), + anonymous_id=raw.get("anonymousId"), + timestamp=timestamp, + properties=raw.get("properties", {}), + stream=raw.stream, + ) + return AdapterResult.success(event) + except Exception as e: + return AdapterResult.failure(f"Failed to create TrackEvent: {e}") + + def _adapt_page(self, raw: RawEvent) -> AdapterResult: + """Adapt page event.""" + # Require page name + name = raw.get("name") + if not name: + return AdapterResult.failure("page event requires 'name' field") + + # Parse timestamp with fallback + ts_raw = raw.get("timestamp") + timestamp = parse_timestamp(ts_raw) if ts_raw else None + if timestamp is None: + timestamp = raw.received_at + + try: + event = PageEvent( + name=name, + user_id=raw.get("userId"), + anonymous_id=raw.get("anonymousId"), + timestamp=timestamp, + properties=raw.get("properties", {}), + stream=raw.stream, + ) + return AdapterResult.success(event) + except Exception as e: + return AdapterResult.failure(f"Failed to create PageEvent: {e}") diff --git a/src/eventkit/adapters/validators/__init__.py b/src/eventkit/adapters/validators/__init__.py new file mode 100644 index 0000000..613be40 --- /dev/null +++ b/src/eventkit/adapters/validators/__init__.py @@ -0,0 +1,16 @@ +"""Event payload validators.""" + +from eventkit.adapters.validators.base import Validator +from eventkit.adapters.validators.pipeline import ValidationPipeline +from eventkit.adapters.validators.required_fields import RequiredFieldsValidator +from eventkit.adapters.validators.timestamp import TimestampValidator, parse_timestamp +from eventkit.adapters.validators.type_check import TypeCheckValidator + +__all__ = [ + "Validator", + "ValidationPipeline", + "RequiredFieldsValidator", + "TypeCheckValidator", + "TimestampValidator", + "parse_timestamp", +] diff --git a/src/eventkit/adapters/validators/base.py b/src/eventkit/adapters/validators/base.py new file mode 100644 index 0000000..9768f8c --- /dev/null +++ b/src/eventkit/adapters/validators/base.py @@ -0,0 +1,29 @@ +"""Base protocol for event validators.""" + +from typing import Any, Protocol + + +class Validator(Protocol): + """ + Protocol for event payload validators. + + Validators perform lightweight checks on raw event payloads + before adapting them to typed events. + + Returns: + tuple[bool, str | None]: (is_valid, error_message) + - (True, None) if validation passes + - (False, "error message") if validation fails + """ + + def validate(self, payload: dict[str, Any]) -> tuple[bool, str | None]: + """ + Validates an event payload. + + Args: + payload: The raw event payload dictionary + + Returns: + A tuple of (is_valid, error_message) + """ + ... diff --git a/src/eventkit/adapters/validators/pipeline.py b/src/eventkit/adapters/validators/pipeline.py new file mode 100644 index 0000000..08ac675 --- /dev/null +++ b/src/eventkit/adapters/validators/pipeline.py @@ -0,0 +1,70 @@ +"""Composable validation pipeline.""" + +from typing import Any + +from eventkit.adapters.validators.base import Validator + + +class ValidationPipeline: + """ + Composable validation pipeline that runs validators in sequence. + + Enables both fixed schemas (Segment) and dynamic schemas (eventkit-schema) + to use the same validator infrastructure. + + Example: + # Fixed schema (Segment) + pipeline = ValidationPipeline.for_segment_spec() + is_valid, error = pipeline.validate(payload) + + # Dynamic schema (future) + pipeline = ValidationPipeline.from_schema(account_schema) + is_valid, error = pipeline.validate(payload) + """ + + def __init__(self, validators: list[Validator]): + """ + Initialize pipeline with list of validators. + + Args: + validators: List of validators to run in order + """ + self.validators = validators + + def validate(self, payload: dict[str, Any]) -> tuple[bool, str | None]: + """ + Run all validators in sequence, stopping on first failure. + + Args: + payload: The raw event payload dictionary + + Returns: + A tuple of (is_valid, error_message) + """ + for validator in self.validators: + is_valid, error = validator.validate(payload) + if not is_valid: + return False, error + return True, None + + @classmethod + def for_segment_spec(cls) -> "ValidationPipeline": + """ + Factory method for Segment spec validation rules. + + Returns: + ValidationPipeline configured for Segment spec + """ + from eventkit.adapters.validators.required_fields import ( + RequiredFieldsValidator, + ) + from eventkit.adapters.validators.timestamp import TimestampValidator + from eventkit.adapters.validators.type_check import TypeCheckValidator + + return cls( + [ + RequiredFieldsValidator(["type"]), + TypeCheckValidator({"type": str}), + TimestampValidator(), + ] + ) diff --git a/src/eventkit/adapters/validators/required_fields.py b/src/eventkit/adapters/validators/required_fields.py new file mode 100644 index 0000000..6a06bed --- /dev/null +++ b/src/eventkit/adapters/validators/required_fields.py @@ -0,0 +1,27 @@ +"""Validator for required field presence.""" + +from typing import Any + + +class RequiredFieldsValidator: + """ + Validates that required fields are present in the payload. + + Args: + fields: List of field names that must be present + + Example: + validator = RequiredFieldsValidator(["type", "userId"]) + is_valid, error = validator.validate({"type": "identify"}) + # (False, "Missing required field: userId") + """ + + def __init__(self, fields: list[str]): + self.fields = fields + + def validate(self, payload: dict[str, Any]) -> tuple[bool, str | None]: + """Check that all required fields are present.""" + for field in self.fields: + if field not in payload: + return False, f"Missing required field: {field}" + return True, None diff --git a/src/eventkit/adapters/validators/timestamp.py b/src/eventkit/adapters/validators/timestamp.py new file mode 100644 index 0000000..8a9a782 --- /dev/null +++ b/src/eventkit/adapters/validators/timestamp.py @@ -0,0 +1,65 @@ +"""Validator for timestamp parsing.""" + +from datetime import UTC, datetime +from typing import Any + + +def parse_timestamp(value: Any) -> datetime | None: + """ + Parse a timestamp from various formats. + + Supports: + - ISO 8601 string: "2024-01-10T12:00:00Z" + - Unix timestamp (seconds): 1704888000 + - Unix timestamp (milliseconds): 1704888000000 + + Args: + value: The timestamp value to parse + + Returns: + A UTC datetime object, or None if parsing fails + """ + if isinstance(value, str): + try: + # Try ISO 8601 parsing + from dateutil.parser import isoparse + + return isoparse(value) + except Exception: + return None + elif isinstance(value, int | float): + try: + # Unix timestamp (seconds or milliseconds) + if value > 1e12: # Milliseconds + return datetime.fromtimestamp(value / 1000, tz=UTC) + else: # Seconds + return datetime.fromtimestamp(value, tz=UTC) + except Exception: + return None + return None + + +class TimestampValidator: + """ + Validates that timestamp field is parseable. + + If timestamp is missing, validation passes (fallback to received_at). + If timestamp is present but invalid, validation fails. + + Example: + validator = TimestampValidator() + is_valid, error = validator.validate({"timestamp": "2024-01-10T12:00:00Z"}) + # (True, None) + """ + + def validate(self, payload: dict[str, Any]) -> tuple[bool, str | None]: + """Check that timestamp is parseable if present.""" + ts = payload.get("timestamp") + if ts is None: + return True, None # timestamp is optional + + parsed = parse_timestamp(ts) + if parsed is None: + return False, f"Invalid timestamp format: {ts}" + + return True, None diff --git a/src/eventkit/adapters/validators/type_check.py b/src/eventkit/adapters/validators/type_check.py new file mode 100644 index 0000000..005f8af --- /dev/null +++ b/src/eventkit/adapters/validators/type_check.py @@ -0,0 +1,44 @@ +"""Validator for basic type checking.""" + +from typing import Any + + +class TypeCheckValidator: + """ + Validates that fields match expected types. + + Args: + type_map: Dictionary mapping field names to expected types + + Example: + validator = TypeCheckValidator({"type": str, "userId": str}) + is_valid, error = validator.validate({"type": "identify", "userId": 123}) + # (False, "Field 'userId' has invalid type: expected str, got int") + """ + + def __init__(self, type_map: dict[str, type | tuple[type, ...]]): + self.type_map = type_map + + def validate(self, payload: dict[str, Any]) -> tuple[bool, str | None]: + """Check that fields match expected types.""" + for field, expected_type in self.type_map.items(): + if field not in payload: + continue # Skip missing fields (RequiredFieldsValidator handles this) + + value = payload[field] + if not isinstance(value, expected_type): + expected_name = self._get_type_name(expected_type) + actual_name = type(value).__name__ + error_msg = ( + f"Field '{field}' has invalid type: expected {expected_name}, got {actual_name}" + ) + return False, error_msg + + return True, None + + def _get_type_name(self, type_obj: type | tuple[type, ...]) -> str: + """Get human-readable type name.""" + if isinstance(type_obj, tuple): + names = [t.__name__ for t in type_obj] + return " or ".join(names) + return type_obj.__name__ diff --git a/tests/unit/adapters/test_segment.py b/tests/unit/adapters/test_segment.py new file mode 100644 index 0000000..66a37d0 --- /dev/null +++ b/tests/unit/adapters/test_segment.py @@ -0,0 +1,186 @@ +"""Tests for SegmentSchemaAdapter.""" + +from datetime import UTC, datetime + +import pytest + +from eventkit.adapters.segment import SegmentSchemaAdapter +from eventkit.schema.events import IdentifyEvent, PageEvent, TrackEvent +from eventkit.schema.raw import RawEvent + + +@pytest.fixture +def adapter(): + """Create SegmentSchemaAdapter instance.""" + return SegmentSchemaAdapter() + + +class TestSegmentAdapterValidation: + """Tests for validation phase.""" + + def test_missing_type_field(self, adapter): + """Test validation fails when type field missing.""" + raw = RawEvent(payload={}) + result = adapter.adapt(raw) + assert result.ok is False + assert "Missing required field: type" in result.error + + def test_invalid_type_type(self, adapter): + """Test validation fails when type is not string.""" + raw = RawEvent(payload={"type": 123}) + result = adapter.adapt(raw) + assert result.ok is False + assert "invalid type" in result.error.lower() + + def test_invalid_timestamp(self, adapter): + """Test validation fails for invalid timestamp.""" + raw = RawEvent(payload={"type": "identify", "timestamp": "not-a-timestamp"}) + result = adapter.adapt(raw) + assert result.ok is False + assert "Invalid timestamp format" in result.error + + def test_unknown_event_type(self, adapter): + """Test validation fails for unknown event type.""" + raw = RawEvent(payload={"type": "unknown"}) + result = adapter.adapt(raw) + assert result.ok is False + assert "Unknown event type" in result.error + + +class TestSegmentAdapterIdentify: + """Tests for identify event adaptation.""" + + def test_adapt_identify_with_user_id(self, adapter): + """Test adapting identify event with userId.""" + raw = RawEvent( + payload={ + "type": "identify", + "userId": "user-123", + "traits": {"email": "test@example.com"}, + } + ) + result = adapter.adapt(raw) + assert result.ok is True + assert isinstance(result.event, IdentifyEvent) + assert result.event.user_id == "user-123" + assert result.event.traits["email"] == "test@example.com" + + def test_adapt_identify_with_anonymous_id(self, adapter): + """Test adapting identify event with anonymousId.""" + raw = RawEvent(payload={"type": "identify", "anonymousId": "anon-456"}) + result = adapter.adapt(raw) + assert result.ok is True + assert result.event.anonymous_id == "anon-456" + + def test_adapt_identify_requires_identity(self, adapter): + """Test identify event requires at least one identity field.""" + raw = RawEvent(payload={"type": "identify"}) + result = adapter.adapt(raw) + assert result.ok is False + assert "userId or anonymousId" in result.error + + def test_adapt_identify_with_timestamp(self, adapter): + """Test timestamp parsing in identify event.""" + raw = RawEvent( + payload={ + "type": "identify", + "userId": "123", + "timestamp": "2024-01-10T12:00:00Z", + } + ) + result = adapter.adapt(raw) + assert result.ok is True + assert result.event.timestamp.year == 2024 + assert result.event.timestamp.month == 1 + + def test_adapt_identify_timestamp_fallback(self, adapter): + """Test timestamp falls back to received_at.""" + received_at = datetime.now(UTC) + raw = RawEvent(payload={"type": "identify", "userId": "123"}, received_at=received_at) + result = adapter.adapt(raw) + assert result.ok is True + assert result.event.timestamp == received_at + + def test_adapt_identify_with_set_fields(self, adapter): + """Test PostHog-style $set and $set_once fields.""" + raw = RawEvent( + payload={ + "type": "identify", + "userId": "123", + "$set": {"email": "new@example.com"}, + "$set_once": {"signup_date": "2024-01-10"}, + } + ) + result = adapter.adapt(raw) + assert result.ok is True + assert result.event.set == {"email": "new@example.com"} + assert result.event.set_once == {"signup_date": "2024-01-10"} + + def test_adapt_identify_with_stream(self, adapter): + """Test stream field is preserved.""" + raw = RawEvent(payload={"type": "identify", "userId": "123"}, stream="mobile") + result = adapter.adapt(raw) + assert result.ok is True + assert result.event.stream == "mobile" + + +class TestSegmentAdapterTrack: + """Tests for track event adaptation.""" + + def test_adapt_track_success(self, adapter): + """Test adapting track event.""" + raw = RawEvent( + payload={ + "type": "track", + "event": "Button Clicked", + "userId": "123", + "properties": {"button_id": "signup"}, + } + ) + result = adapter.adapt(raw) + assert result.ok is True + assert isinstance(result.event, TrackEvent) + assert result.event.event_name == "Button Clicked" + assert result.event.properties["button_id"] == "signup" + + def test_adapt_track_requires_event_name(self, adapter): + """Test track event requires 'event' field.""" + raw = RawEvent(payload={"type": "track"}) + result = adapter.adapt(raw) + assert result.ok is False + assert "requires 'event' field" in result.error + + def test_adapt_track_without_identity(self, adapter): + """Test track event works without userId/anonymousId.""" + raw = RawEvent(payload={"type": "track", "event": "Page View"}) + result = adapter.adapt(raw) + assert result.ok is True + assert result.event.user_id is None + assert result.event.anonymous_id is None + + +class TestSegmentAdapterPage: + """Tests for page event adaptation.""" + + def test_adapt_page_success(self, adapter): + """Test adapting page event.""" + raw = RawEvent( + payload={ + "type": "page", + "name": "Home", + "userId": "123", + "properties": {"url": "/home"}, + } + ) + result = adapter.adapt(raw) + assert result.ok is True + assert isinstance(result.event, PageEvent) + assert result.event.name == "Home" + assert result.event.properties["url"] == "/home" + + def test_adapt_page_requires_name(self, adapter): + """Test page event requires 'name' field.""" + raw = RawEvent(payload={"type": "page"}) + result = adapter.adapt(raw) + assert result.ok is False + assert "requires 'name' field" in result.error diff --git a/tests/unit/adapters/validators/test_pipeline.py b/tests/unit/adapters/validators/test_pipeline.py new file mode 100644 index 0000000..f60fba0 --- /dev/null +++ b/tests/unit/adapters/validators/test_pipeline.py @@ -0,0 +1,53 @@ +"""Tests for ValidationPipeline.""" + +from eventkit.adapters.validators.pipeline import ValidationPipeline +from eventkit.adapters.validators.required_fields import RequiredFieldsValidator +from eventkit.adapters.validators.type_check import TypeCheckValidator + + +def test_pipeline_all_pass(): + """Test pipeline passes when all validators pass.""" + pipeline = ValidationPipeline( + [ + RequiredFieldsValidator(["type"]), + TypeCheckValidator({"type": str}), + ] + ) + is_valid, error = pipeline.validate({"type": "identify"}) + assert is_valid is True + assert error is None + + +def test_pipeline_fails_on_first_error(): + """Test pipeline stops on first failure.""" + pipeline = ValidationPipeline( + [ + RequiredFieldsValidator(["type", "userId"]), + TypeCheckValidator({"type": str}), + ] + ) + is_valid, error = pipeline.validate({"type": "identify"}) + assert is_valid is False + assert "Missing required field: userId" in error + + +def test_pipeline_empty_validators(): + """Test pipeline with no validators always passes.""" + pipeline = ValidationPipeline([]) + is_valid, error = pipeline.validate({}) + assert is_valid is True + assert error is None + + +def test_pipeline_for_segment_spec(): + """Test factory method for Segment spec.""" + pipeline = ValidationPipeline.for_segment_spec() + + # Valid Segment event + is_valid, error = pipeline.validate({"type": "identify", "timestamp": "2024-01-10T12:00:00Z"}) + assert is_valid is True + + # Missing type + is_valid, error = pipeline.validate({}) + assert is_valid is False + assert "type" in error diff --git a/tests/unit/adapters/validators/test_required_fields.py b/tests/unit/adapters/validators/test_required_fields.py new file mode 100644 index 0000000..c4c70e5 --- /dev/null +++ b/tests/unit/adapters/validators/test_required_fields.py @@ -0,0 +1,27 @@ +"""Tests for RequiredFieldsValidator.""" + +from eventkit.adapters.validators.required_fields import RequiredFieldsValidator + + +def test_required_fields_all_present(): + """Test validation passes when all fields present.""" + validator = RequiredFieldsValidator(["type", "userId"]) + is_valid, error = validator.validate({"type": "identify", "userId": "123"}) + assert is_valid is True + assert error is None + + +def test_required_fields_missing(): + """Test validation fails when field missing.""" + validator = RequiredFieldsValidator(["type", "userId"]) + is_valid, error = validator.validate({"type": "identify"}) + assert is_valid is False + assert error == "Missing required field: userId" + + +def test_required_fields_empty_list(): + """Test validation passes with no required fields.""" + validator = RequiredFieldsValidator([]) + is_valid, error = validator.validate({}) + assert is_valid is True + assert error is None diff --git a/tests/unit/adapters/validators/test_timestamp.py b/tests/unit/adapters/validators/test_timestamp.py new file mode 100644 index 0000000..718c854 --- /dev/null +++ b/tests/unit/adapters/validators/test_timestamp.py @@ -0,0 +1,71 @@ +"""Tests for TimestampValidator.""" + +from datetime import UTC, datetime + +from eventkit.adapters.validators.timestamp import TimestampValidator, parse_timestamp + + +class TestParseTimestamp: + """Tests for parse_timestamp helper function.""" + + def test_parse_iso8601(self): + """Test parsing ISO 8601 string.""" + result = parse_timestamp("2024-01-10T12:00:00Z") + assert isinstance(result, datetime) + assert result.year == 2024 + assert result.month == 1 + assert result.day == 10 + + def test_parse_unix_seconds(self): + """Test parsing Unix timestamp (seconds).""" + result = parse_timestamp(1704888000) + assert isinstance(result, datetime) + assert result.tzinfo == UTC + + def test_parse_unix_milliseconds(self): + """Test parsing Unix timestamp (milliseconds).""" + result = parse_timestamp(1704888000000) + assert isinstance(result, datetime) + assert result.tzinfo == UTC + + def test_parse_invalid_string(self): + """Test parsing invalid string.""" + result = parse_timestamp("not-a-timestamp") + assert result is None + + def test_parse_invalid_type(self): + """Test parsing invalid type.""" + result = parse_timestamp({"timestamp": "2024-01-10"}) + assert result is None + + +class TestTimestampValidator: + """Tests for TimestampValidator.""" + + def test_validate_iso8601(self): + """Test validation passes for ISO 8601.""" + validator = TimestampValidator() + is_valid, error = validator.validate({"timestamp": "2024-01-10T12:00:00Z"}) + assert is_valid is True + assert error is None + + def test_validate_unix(self): + """Test validation passes for Unix timestamp.""" + validator = TimestampValidator() + is_valid, error = validator.validate({"timestamp": 1704888000}) + assert is_valid is True + assert error is None + + def test_validate_missing(self): + """Test validation passes for missing timestamp.""" + validator = TimestampValidator() + is_valid, error = validator.validate({}) + assert is_valid is True + assert error is None + + def test_validate_invalid(self): + """Test validation fails for invalid timestamp.""" + validator = TimestampValidator() + is_valid, error = validator.validate({"timestamp": "invalid"}) + assert is_valid is False + assert "Invalid timestamp format" in error diff --git a/tests/unit/adapters/validators/test_type_check.py b/tests/unit/adapters/validators/test_type_check.py new file mode 100644 index 0000000..a188d71 --- /dev/null +++ b/tests/unit/adapters/validators/test_type_check.py @@ -0,0 +1,42 @@ +"""Tests for TypeCheckValidator.""" + +from eventkit.adapters.validators.type_check import TypeCheckValidator + + +def test_type_check_valid(): + """Test validation passes with correct types.""" + validator = TypeCheckValidator({"type": str, "count": int}) + is_valid, error = validator.validate({"type": "track", "count": 5}) + assert is_valid is True + assert error is None + + +def test_type_check_invalid(): + """Test validation fails with incorrect type.""" + validator = TypeCheckValidator({"type": str}) + is_valid, error = validator.validate({"type": 123}) + assert is_valid is False + assert "invalid type" in error.lower() + assert "str" in error + assert "int" in error + + +def test_type_check_missing_field(): + """Test validation passes for missing fields.""" + validator = TypeCheckValidator({"type": str, "optional": int}) + is_valid, error = validator.validate({"type": "track"}) + assert is_valid is True # Missing fields are OK + + +def test_type_check_multiple_types(): + """Test validation with union types.""" + validator = TypeCheckValidator({"timestamp": (str, int)}) + + is_valid, error = validator.validate({"timestamp": "2024-01-10"}) + assert is_valid is True + + is_valid, error = validator.validate({"timestamp": 1704888000}) + assert is_valid is True + + is_valid, error = validator.validate({"timestamp": 12.34}) + assert is_valid is False diff --git a/tests/unit/adapters/validators/test_validator_protocol.py b/tests/unit/adapters/validators/test_validator_protocol.py new file mode 100644 index 0000000..6ddfcdd --- /dev/null +++ b/tests/unit/adapters/validators/test_validator_protocol.py @@ -0,0 +1,17 @@ +"""Tests for validator protocol.""" + +from eventkit.adapters.validators.base import Validator + + +def test_validator_protocol(): + """Test that Validator protocol is structural.""" + + class CustomValidator: + def validate(self, payload: dict) -> tuple[bool, str | None]: + return True, None + + # Should satisfy protocol without inheritance + def accepts_validator(validator: Validator) -> None: + pass + + accepts_validator(CustomValidator()) diff --git a/uv.lock b/uv.lock index bf25118..3d5898e 100644 --- a/uv.lock +++ b/uv.lock @@ -256,6 +256,7 @@ dependencies = [ { name = "google-cloud-firestore" }, { name = "pydantic" }, { name = "pydantic-settings" }, + { name = "python-dateutil" }, { name = "structlog" }, { name = "tenacity" 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