test: Benchmarks for record datetime parsing (meltano#2054)

* added benchmarks for datetime parsing

* update comments

* changed record from fixture to fucntion variables

* refactored to use itertools.repeat and dict.copy()

---------

Co-authored-by: Edgar Ramírez Mondragón <[email protected]>

tests/core/sinks/test_validation.py

@@ -1,6 +1,9 @@
 from __future__ import annotations
 
 import datetime
+import itertools
+
+import pytest
 
 from tests.conftest import BatchSinkMock, TargetMock
 
@@ -39,3 +42,60 @@ def test_validate_record():
     )
     assert updated_record["missing_datetime"] == "2021-01-01T00:00:00+00:00"
     assert updated_record["invalid_datetime"] == "9999-12-31 23:59:59.999999"
+
+
+@pytest.fixture
+def bench_sink() -> BatchSinkMock:
+    target = TargetMock()
+    return BatchSinkMock(
+        target,
+        "users",
+        {
+            "type": "object",
+            "properties": {
+                "id": {"type": "integer"},
+                "created_at": {"type": "string", "format": "date-time"},
+                "updated_at": {"type": "string", "format": "date-time"},
+                "deleted_at": {"type": "string", "format": "date-time"},
+            },
+        },
+        ["id"],
+    )
+
+
+@pytest.fixture
+def bench_record():
+    return {
+        "id": 1,
+        "created_at": "2021-01-01T00:08:00-07:00",
+        "updated_at": "2022-01-02T00:09:00-07:00",
+        "deleted_at": "2023-01-03T00:10:00.0000",
+    }
+
+
+def test_bench_parse_timestamps_in_record(benchmark, bench_sink, bench_record):
+    """Run benchmark for Sink method _parse_timestamps_in_record."""
+    number_of_runs = 10000
+
+    sink: BatchSinkMock = bench_sink
+
+    def run_parse_timestamps_in_record():
+        for record in itertools.repeat(bench_record, number_of_runs):
+            _ = sink._parse_timestamps_in_record(
+                record.copy(), sink.schema, sink.datetime_error_treatment
+            )
+
+    benchmark(run_parse_timestamps_in_record)
+
+
+def test_bench_validate_and_parse(benchmark, bench_sink, bench_record):
+    """Run benchmark for Sink method _validate_and_parse."""
+    number_of_runs = 10000
+
+    sink: BatchSinkMock = bench_sink
+
+    def run_validate_and_parse():
+        for record in itertools.repeat(bench_record, number_of_runs):
+            _ = sink._validate_and_parse(record.copy())
+
+    benchmark(run_validate_and_parse)