Don't add worksheets to the workbook when initialize fails

Creating a worksheet with an invalid name would still add it to the
workbook, despite raising an exception.

1 files changed, 6 insertions, 0 deletions

diff --git a/test/workbook/worksheet/tc_worksheet.rb b/test/workbook/worksheet/tc_worksheet.rb
index 8280aca0..b576047d 100644
--- a/test/workbook/worksheet/tc_worksheet.rb
+++ b/test/workbook/worksheet/tc_worksheet.rb
@@ -492,4 +492,10 @@ class TestWorksheet < Test::Unit::TestCase
     assert_equal(true, @ws.sheet_view.show_outline_symbols)
   end
 
+  def test_worksheet_does_not_get_added_to_workbook_on_initialize_failure
+    assert_equal(1, @wb.worksheets.size)
+    assert_raise(ArgumentError) { @wb.add_worksheet(:name => 'Sheet1') }
+    assert_equal(1, @wb.worksheets.size)
+  end
+
 end