diff --git a/unit_tests/sources/declarative/test_manifest_declarative_source.py b/unit_tests/sources/declarative/test_manifest_declarative_source.py
index ea92bac5..dfadc3da 100644
--- a/unit_tests/sources/declarative/test_manifest_declarative_source.py
+++ b/unit_tests/sources/declarative/test_manifest_declarative_source.py
@@ -1901,3 +1901,145 @@ def validate_refs(yaml_file: str) -> List[str]:
         / "airbyte_cdk/sources/declarative/declarative_component_schema.yaml"
     )
     assert not validate_refs(yaml_file_path)
+
+
+@pytest.mark.parametrize(
+    "test_name, manifest, pages, expected_states_qty",
+    [
+        (
+            "test_with_pagination_and_partition_router",
+            {
+                "version": "0.34.2",
+                "type": "DeclarativeSource",
+                "check": {"type": "CheckStream", "stream_names": ["Rates"]},
+                "streams": [
+                    {
+                        "type": "DeclarativeStream",
+                        "name": "Rates",
+                        "primary_key": [],
+                        "schema_loader": {
+                            "type": "InlineSchemaLoader",
+                            "schema": {
+                                "$schema": "http://json-schema.org/schema#",
+                                "properties": {
+                                    "ABC": {"type": "number"},
+                                    "AED": {"type": "number"},
+                                    "partition": {"type": "number"},
+                                },
+                                "type": "object",
+                            },
+                        },
+                        "retriever": {
+                            "type": "SimpleRetriever",
+                            "requester": {
+                                "type": "HttpRequester",
+                                "url_base": "https://api.apilayer.com",
+                                "path": "/exchangerates_data/latest",
+                                "http_method": "GET",
+                                "request_parameters": {},
+                                "request_headers": {},
+                                "request_body_json": {},
+                                "authenticator": {
+                                    "type": "ApiKeyAuthenticator",
+                                    "header": "apikey",
+                                    "api_token": "{{ config['api_key'] }}",
+                                },
+                            },
+                            "partition_router": {
+                                "type": "ListPartitionRouter",
+                                "values": ["0", "1"],
+                                "cursor_field": "partition",
+                            },
+                            "record_selector": {
+                                "type": "RecordSelector",
+                                "extractor": {"type": "DpathExtractor", "field_path": ["rates"]},
+                            },
+                            "paginator": {
+                                "type": "DefaultPaginator",
+                                "page_size": 2,
+                                "page_size_option": {
+                                    "inject_into": "request_parameter",
+                                    "field_name": "page_size",
+                                },
+                                "page_token_option": {"inject_into": "path", "type": "RequestPath"},
+                                "pagination_strategy": {
+                                    "type": "CursorPagination",
+                                    "cursor_value": "{{ response._metadata.next }}",
+                                    "page_size": 2,
+                                },
+                            },
+                        },
+                        "incremental_sync": {
+                            "type": "DatetimeBasedCursor",
+                            "cursor_datetime_formats": ["%Y-%m-%dT%H:%M:%S.%fZ"],
+                            "datetime_format": "%Y-%m-%dT%H:%M:%S.%fZ",
+                            "cursor_field": "updated_at",
+                            "start_datetime": {
+                                "datetime": "{{ config.get('start_date', '2020-10-16T00:00:00.000Z') }}"
+                            },
+                        },
+                    }
+                ],
+                "spec": {
+                    "connection_specification": {
+                        "$schema": "http://json-schema.org/draft-07/schema#",
+                        "type": "object",
+                        "required": ["api_key"],
+                        "properties": {
+                            "api_key": {
+                                "type": "string",
+                                "title": "API Key",
+                                "airbyte_secret": True,
+                            },
+                            "start_date": {
+                                "title": "Start Date",
+                                "description": "UTC date and time in the format YYYY-MM-DDTHH:MM:SS.000Z. During incremental sync, any data generated before this date will not be replicated. If left blank, the start date will be set to 2 years before the present date.",
+                                "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}Z$",
+                                "pattern_descriptor": "YYYY-MM-DDTHH:MM:SS.000Z",
+                                "examples": ["2020-11-16T00:00:00.000Z"],
+                                "type": "string",
+                                "format": "date-time",
+                            },
+                        },
+                        "additionalProperties": True,
+                    },
+                    "documentation_url": "https://example.org",
+                    "type": "Spec",
+                },
+            },
+            (
+                _create_page(
+                    {
+                        "rates": [
+                            {"ABC": 0, "partition": 0, "updated_at": "2020-11-16T00:00:00.000Z"},
+                            {"AED": 1, "partition": 0, "updated_at": "2020-11-16T00:00:00.000Z"},
+                        ],
+                        "_metadata": {"next": "next"},
+                    }
+                ),
+                _create_page(
+                    {
+                        "rates": [
+                            {"USD": 3, "partition": 0, "updated_at": "2020-11-16T00:00:00.000Z"}
+                        ],
+                        "_metadata": {},
+                    }
+                ),
+                _create_page(
+                    {
+                        "rates": [
+                            {"ABC": 2, "partition": 1, "updated_at": "2020-11-16T00:00:00.000Z"}
+                        ],
+                        "_metadata": {},
+                    }
+                ),
+            ),
+            2,
+        ),
+    ],
+)
+def test_slice_checkpoint(test_name, manifest, pages, expected_states_qty):
+    _stream_name = "Rates"
+    with patch.object(SimpleRetriever, "_fetch_next_page", side_effect=pages):
+        states = [message.state for message in _run_read(manifest, _stream_name) if message.state]
+        assert len(states) == expected_states_qty