add tests for json parser

unit_tests/sources/declarative/decoders/parsers/__init__.py

@@ -0,0 +1,3 @@
+#
+# Copyright (c) 2024 Airbyte, Inc., all rights reserved.
+#

unit_tests/sources/declarative/decoders/parsers/test_parsers.py

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+#
+# Copyright (c) 2024 Airbyte, Inc., all rights reserved.
+#
+
+import json
+
+import pytest
+
+from airbyte_cdk.sources.declarative.decoders.parsers import JsonParser
+
+
+@pytest.mark.parametrize(
+        "raw_data, expected",
+        [
+            (json.dumps({"data-type": "string"}), {"data-type": "string"}),
+            (json.dumps({"data-type": "bytes"}).encode("utf-8"), {"data-type": "bytes"}),
+            (bytearray(json.dumps({"data-type": "bytearray"}).encode("utf-8")), {"data-type": "bytearray"}),
+        ],
+        ids=["test_with_str", "test_with_bytes", "test_with_bytearray"]
+)
+def test_json_parser_with_valid_data(raw_data, expected):
+    assert next(JsonParser().parse(raw_data)) == expected