DB-GPT/dbgpt/util/tracer/tests/test_base.py
2024-01-10 10:39:04 +08:00

131 lines
3.4 KiB
Python

from typing import Dict
from dbgpt.component import SystemApp
from dbgpt.util.tracer import Span, SpanStorage, SpanType, Tracer
# Mock implementations
class MockSpanStorage(SpanStorage):
def __init__(self):
self.spans = []
def append_span(self, span: Span):
self.spans.append(span)
class MockTracer(Tracer):
def __init__(self, system_app: SystemApp | None = None):
super().__init__(system_app)
self.current_span = None
self.storage = MockSpanStorage()
def append_span(self, span: Span):
self.storage.append_span(span)
def start_span(
self, operation_name: str, parent_span_id: str = None, metadata: Dict = None
) -> Span:
trace_id = (
self._new_uuid() if parent_span_id is None else parent_span_id.split(":")[0]
)
span_id = f"{trace_id}:{self._new_uuid()}"
span = Span(
trace_id, span_id, SpanType.BASE, parent_span_id, operation_name, metadata
)
self.current_span = span
return span
def end_span(self, span: Span):
span.end()
self.append_span(span)
def get_current_span(self) -> Span:
return self.current_span
def _get_current_storage(self) -> SpanStorage:
return self.storage
# Tests
def test_span_creation():
span = Span(
"trace_id",
"span_id",
SpanType.BASE,
"parent_span_id",
"operation",
{"key": "value"},
)
assert span.trace_id == "trace_id"
assert span.span_id == "span_id"
assert span.parent_span_id == "parent_span_id"
assert span.operation_name == "operation"
assert span.metadata == {"key": "value"}
def test_span_end():
span = Span("trace_id", "span_id")
assert span.end_time is None
span.end()
assert span.end_time is not None
def test_mock_tracer_start_span():
tracer = MockTracer()
span = tracer.start_span("operation")
assert span.operation_name == "operation"
assert tracer.get_current_span() == span
def test_mock_tracer_end_span():
tracer = MockTracer()
span = tracer.start_span("operation")
tracer.end_span(span)
assert span in tracer._get_current_storage().spans
def test_mock_tracer_append_span():
tracer = MockTracer()
span = Span("trace_id", "span_id")
tracer.append_span(span)
assert span in tracer._get_current_storage().spans
def test_parent_child_span_relation():
tracer = MockTracer()
# Start a parent span
parent_span = tracer.start_span("parent_operation")
# Start a child span with parent span's ID
child_span = tracer.start_span(
"child_operation", parent_span_id=parent_span.span_id
)
# Assert the relationships
assert child_span.parent_span_id == parent_span.span_id
assert (
child_span.trace_id == parent_span.trace_id
) # Assuming children share the same trace ID
# End spans
tracer.end_span(child_span)
tracer.end_span(parent_span)
# Assert they are in the storage
assert child_span in tracer._get_current_storage().spans
assert parent_span in tracer._get_current_storage().spans
# This test checks if unique UUIDs are being generated.
# Note: This is a simple test and doesn't guarantee uniqueness for large numbers of UUIDs.
def test_new_uuid_unique():
tracer = MockTracer()
uuid_set = {tracer._new_uuid() for _ in range(1000)}
assert len(uuid_set) == 1000