openpyxl.writer.tests.test_write_only.
DummyWorkbook
WriteOnlyWorksheet
doc
test_append
test_auto_filter
test_cannot_save_twice
test_cell_comment
test_close
test_conditional_formatting
test_data_validations
test_dirty_cell
test_frozen_panes
test_invalid_append
test_path
test_save
test_write_empty_row
test_write_header
test_write_height