def test_django_traced_cursor_backward_compatibility(self): cursor = self.cursor tracer = self.tracer # Django integration used to have its own TracedCursor implementation. When we replaced such custom # implementation with the generic dbapi traced cursor, we had to make sure to add the tag 'sql.rows' that was # set by the legacy replaced implementation. cursor.rowcount = 123 pin = Pin('my_service', app='my_app', tracer=tracer, tags={'pin1': 'value_pin1'}) traced_cursor = TracedCursor(cursor, pin) def method(): pass traced_cursor._trace_method(method, 'my_name', 'my_resource', {'extra1': 'value_extra1'}) span = tracer.writer.pop()[0] # type: Span # Row count assert span.get_metric('db.rowcount') == 123, 'Row count is set as a metric' assert span.get_tag('sql.rows') == '123', 'Row count is set as a tag (for legacy django cursor replacement)'
def test_span_info(self): cursor = self.cursor tracer = self.tracer cursor.rowcount = 123 pin = Pin('my_service', app='my_app', tracer=tracer, tags={'pin1': 'value_pin1'}) traced_cursor = TracedCursor(cursor, pin) def method(): pass traced_cursor._trace_method(method, 'my_name', 'my_resource', {'extra1': 'value_extra1'}) span = tracer.writer.pop()[0] # type: Span assert span.meta['pin1'] == 'value_pin1', 'Pin tags are preserved' assert span.meta['extra1'] == 'value_extra1', 'Extra tags are merged into pin tags' assert span.name == 'my_name', 'Span name is respected' assert span.service == 'my_service', 'Service from pin' assert span.resource == 'my_resource', 'Resource is respected' assert span.span_type == 'sql', 'Span has the correct span type' # Row count assert span.get_metric('db.rowcount') == 123, 'Row count is set as a metric' assert span.get_tag('sql.rows') == '123', 'Row count is set as a tag (for legacy django cursor replacement)'