fix: resolve linting errors in test files

- Add quotes to BinaryIO type expressions (TC006)
- Fix line length error by splitting long assertion (E501)
- Remove unused variable original_name (F841)

All ruff checks now pass.

Author: jdrhyne

tests/unit/test_direct_api.py

@@ -299,8 +299,10 @@ def test_direct_api_with_file_like_object(self, mock_process):
             temp_file.write(b"test content")
             temp_file.seek(0)
 
-            self.client.rotate_pages(cast(BinaryIO, temp_file), degrees=90)
-            mock_process.assert_called_once_with("rotate-pages", cast(BinaryIO, temp_file), None, degrees=90)
+            self.client.rotate_pages(cast("BinaryIO", temp_file), degrees=90)
+            mock_process.assert_called_once_with(
+                "rotate-pages", cast("BinaryIO", temp_file), None, degrees=90
+            )
 
 
 class TestDirectAPIErrorHandling:

tests/unit/test_file_handler.py

@@ -74,7 +74,7 @@ def test_prepare_file_input_from_file_handle(self):
             temp_file.write(content)
             temp_file.seek(0)
 
-            result, filename = prepare_file_input(cast(BinaryIO, temp_file))
+            result, filename = prepare_file_input(cast("BinaryIO", temp_file))
             assert result == content
             assert filename == os.path.basename(temp_file.name)
 
@@ -84,7 +84,7 @@ def test_prepare_file_input_from_string_file_handle(self):
         string_file = io.StringIO(string_content)
         string_file.name = "test.txt"
 
-        result, filename = prepare_file_input(cast(BinaryIO, string_file))
+        result, filename = prepare_file_input(cast("BinaryIO", string_file))
         assert result == string_content.encode()
         assert filename == "test.txt"
 
@@ -112,10 +112,9 @@ def test_prepare_file_input_file_handle_with_path_name(self):
             temp_file.seek(0)
 
             # Mock the name to be a path-like object
-            original_name = temp_file.name
             temp_file.name = Path(temp_file.name)  # type: ignore
 
-            result, filename = prepare_file_input(cast(BinaryIO, temp_file))
+            result, filename = prepare_file_input(cast("BinaryIO", temp_file))
             assert result == content
             assert filename == os.path.basename(str(temp_file.name))
 
@@ -426,7 +425,7 @@ def test_get_file_size_seekable_file_object(self):
             temp_file.write(content)
             temp_file.seek(5)  # Move to middle of file
 
-            size = get_file_size(cast(BinaryIO, temp_file))
+            size = get_file_size(cast("BinaryIO", temp_file))
             assert size == len(content)
 
             # Verify position was restored