format: add border color test

dev/docs/source/working_with_macros.rst

@@ -14,7 +14,7 @@ This section explains how to add a VBA file containing functions or macros to an
 The Excel XLSM file format
 --------------------------
 
-An Excel ``xlsm`` file is exactly the same as an ``xlsx`` file except that is
+An Excel ``xlsm`` file is exactly the same as an ``xlsx`` file except that it
 contains an additional ``vbaProject.bin`` file which contains functions and/or
 macros. Excel uses a different extension to differentiate between the two file
 formats since files containing macros are usually subject to additional

xlsxwriter/test/comparison/test_format25.py

@@ -0,0 +1,41 @@
+###############################################################################
+#
+# Tests for XlsxWriter.
+#
+# SPDX-License-Identifier: BSD-2-Clause
+# Copyright (c), 2013-2024, John McNamara, jmcnamara@cpan.org
+#
+
+from ..excel_comparison_test import ExcelComparisonTest
+from ...workbook import Workbook
+
+
+class TestCompareXLSXFiles(ExcelComparisonTest):
+    """
+    Test file created by XlsxWriter against a file created by Excel.
+
+    """
+
+    def setUp(self):
+
+        self.set_filename("format25.xlsx")
+
+    def test_create_file(self):
+        """Test the creation of a simple XlsxWriter file with automatic color."""
+
+        workbook = Workbook(self.got_filename)
+
+        worksheet = workbook.add_worksheet()
+
+        format1 = workbook.add_format(
+            {
+                "border_color": "#FF9966",
+                "border": 1,
+            }
+        )
+
+        worksheet.write(2, 2, "", format1)
+
+        workbook.close()
+
+        self.assertExcelEqual()