[DOP-21442] Add Excel API schema

Author: Ilyas Gasanov

tests/test_unit/test_transfers/test_create_transfer.py

@@ -633,10 +633,14 @@ async def test_developer_plus_can_not_create_transfer_with_target_format_json(
             "message": "Invalid request",
             "details": [
                 {
-                    "context": {"discriminator": "'type'", "tag": "json", "expected_tags": "'csv', 'jsonline'"},
+                    "context": {
+                        "discriminator": "'type'",
+                        "tag": "json",
+                        "expected_tags": "'csv', 'jsonline', 'excel'",
+                    },
                     "input": {"type": "json", "lineSep": "\n", "encoding": "utf-8"},
                     "location": ["body", "target_params", "s3", "file_format"],
-                    "message": "Input tag 'json' found using 'type' does not match any of the expected tags: 'csv', 'jsonline'",
+                    "message": "Input tag 'json' found using 'type' does not match any of the expected tags: 'csv', 'jsonline', 'excel'",
                     "code": "union_tag_invalid",
                 },
             ],

tests/test_unit/test_transfers/test_file_transfers/test_create_transfer.py

@@ -114,6 +114,7 @@ async def test_developer_plus_can_create_s3_transfer(
 
     expected_file_formats = {
         "csv": {
+            "type": "csv",
             "delimiter": ",",
             "encoding": "utf-8",
             "quote": '"',
@@ -122,6 +123,7 @@ async def test_developer_plus_can_create_s3_transfer(
             "line_sep": "\n",
         },
         "excel": {
+            "type": "excel",
             "include_header": True,
             "start_cell": "A1",
         },
@@ -131,7 +133,7 @@ async def test_developer_plus_can_create_s3_transfer(
         assert params["type"] == target_source_params["type"]
         assert params["directory_path"] == target_source_params["directory_path"]
         assert params["options"] == {"some": "option"}
-        assert params["file_format"] == expected_file_formats[params["type"]]
+        assert params["file_format"] == expected_file_formats[params["file_format"]["type"]]
 
 
 @pytest.mark.parametrize(