Merged PR 5300: Adding arraysize property

Adding arraysize property

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#### AI description  (iteration 1)
#### PR Classification
New feature

#### PR Summary
This pull request introduces the `arraysize` property to the cursor functionality.
- `mssql_python/cursor.py`: Set default fetch size to `arraysize` if not specified.
- `tests/test_cursor.py`: Added tests to verify the `arraysize` property and its behavior when changed.
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Related work items: #32884

Author: jahnvi480

mssql_python/cursor.py

@@ -54,7 +54,7 @@ def __init__(self, connection) -> None:
         self._initialize_cursor()
         self.description = None
         self.rowcount = -1
-        self.arraysize = 1
+        self.arraysize = 1 # Default number of rows to fetch at a time is 1, user can change it
         self.buffer_length = 1024  # Default buffer length for string data
         self.closed = False  # Flag to indicate if the cursor is closed
         self.last_executed_stmt = "" # Stores the last statement executed by this cursor
@@ -607,7 +607,7 @@ def fetchmany(self, size: int = None) -> List[tuple]:
         self._check_closed()  # Check if the cursor is closed
 
         if size is None:
-            size = 1
+            size = self.arraysize
 
         try:
             # Fetch the next set of rows

tests/test_cursor.py

@@ -402,6 +402,13 @@ def test_fetchmany(cursor):
     assert isinstance(rows, list), "fetchmany should return a list"
     assert len(rows) == 2, "Incorrect number of rows returned"
 
+def test_fetchmany_with_arraysize(cursor, db_connection):
+    """Test fetchmany with arraysize"""
+    cursor.arraysize = 3
+    cursor.execute("SELECT * FROM all_data_types")
+    rows = cursor.fetchmany()
+    assert len(rows) == 3, "fetchmany with arraysize returned incorrect number of rows"
+
 def test_fetchall(cursor):
     """Test fetching all rows"""
     cursor.execute("SELECT * FROM all_data_types")
@@ -433,10 +440,14 @@ def test_execute_invalid_query(cursor):
 #     assert row[10] == TEST_DATA[10], "Date mismatch"
 #     assert round(row[11], 5) == round(TEST_DATA[11], 5), "Real mismatch"
 
-# def test_arraysize(cursor):
-#     """Test arraysize"""
-#     cursor.arraysize = 10
-#     assert cursor.arraysize == 10, "Arraysize mismatch"
+def test_arraysize(cursor):
+    """Test arraysize"""
+    cursor.arraysize = 10
+    assert cursor.arraysize == 10, "Arraysize mismatch"
+    cursor.arraysize = 5
+    assert cursor.arraysize == 5, "Arraysize mismatch after change"
+
+
 
 # def test_description(cursor):
 #     """Test description"""