def METHOD_NAME(self):
    """Test writing a worksheet with conditional formatting."""
    self.maxDiff = None
    fh = StringIO()
    worksheet = Worksheet()
    worksheet._set_filehandle(fh)
    worksheet.select()
    worksheet.write("A1", 1)
    worksheet.write("A2", 2)
    worksheet.write("A3", 3)
    worksheet.write("A4", 4)
    worksheet.write("A5", 5)
    worksheet.write("A6", 6)
    worksheet.write("A7", 7)
    worksheet.write("A8", 8)
    worksheet.conditional_format(
        "A1", {"type": "icon_set", "icon_style": "3_arrows_gray"}
    )
    worksheet.conditional_format(
        "A2", {"type": "icon_set", "icon_style": "3_traffic_lights"}
    )
    worksheet.conditional_format(
        "A3", {"type": "icon_set", "icon_style": "3_signs"}
    )
    worksheet.conditional_format(
        "A4", {"type": "icon_set", "icon_style": "3_symbols"}
    )
    worksheet.conditional_format(
        "A5", {"type": "icon_set", "icon_style": "4_arrows_gray"}
    )
    worksheet.conditional_format(
        "A6", {"type": "icon_set", "icon_style": "4_ratings"}
    )
    worksheet.conditional_format(
        "A7", {"type": "icon_set", "icon_style": "5_arrows"}
    )
    worksheet.conditional_format(
        "A8", {"type": "icon_set", "icon_style": "5_ratings"}
    )
    worksheet._assemble_xml_file()
    exp = _xml_to_list(
        """
            <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
            <worksheet xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships">
              <dimension ref="A1:A8"/>
              <sheetViews>
                <sheetView tabSelected="1" workbookViewId="0"/>
              </sheetViews>
              <sheetFormatPr defaultRowHeight="15"/>
              <sheetData>
                <row r="1" spans="1:1">
                  <c r="A1">
                    <v>1</v>
                  </c>
                </row>
                <row r="2" spans="1:1">
                  <c r="A2">
                    <v>2</v>
                  </c>
                </row>
                <row r="3" spans="1:1">
                  <c r="A3">
                    <v>3</v>
                  </c>
                </row>
                <row r="4" spans="1:1">
                  <c r="A4">
                    <v>4</v>
                  </c>
                </row>
                <row r="5" spans="1:1">
                  <c r="A5">
                    <v>5</v>
                  </c>
                </row>
                <row r="6" spans="1:1">
                  <c r="A6">
                    <v>6</v>
                  </c>
                </row>
                <row r="7" spans="1:1">
                  <c r="A7">
                    <v>7</v>
                  </c>
                </row>
                <row r="8" spans="1:1">
                  <c r="A8">
                    <v>8</v>
                  </c>
                </row>
              </sheetData>
              <conditionalFormatting sqref="A1">
                <cfRule type="iconSet" priority="1">
                  <iconSet iconSet="3ArrowsGray">
                    <cfvo type="percent" val="0"/>
                    <cfvo type="percent" val="33"/>
                    <cfvo type="percent" val="67"/>
                  </iconSet>
                </cfRule>
              </conditionalFormatting>
              <conditionalFormatting sqref="A2">
                <cfRule type="iconSet" priority="2">
                  <iconSet>
                    <cfvo type="percent" val="0"/>
                    <cfvo type="percent" val="33"/>
                    <cfvo type="percent" val="67"/>
                  </iconSet>
                </cfRule>
              </conditionalFormatting>
              <conditionalFormatting sqref="A3">
                <cfRule type="iconSet" priority="3">
                  <iconSet iconSet="3Signs">
                    <cfvo type="percent" val="0"/>
                    <cfvo type="percent" val="33"/>
                    <cfvo type="percent" val="67"/>
                  </iconSet>
                </cfRule>
              </conditionalFormatting>
              <conditionalFormatting sqref="A4">
                <cfRule type="iconSet" priority="4">
                  <iconSet iconSet="3Symbols2">
                    <cfvo type="percent" val="0"/>
                    <cfvo type="percent" val="33"/>
                    <cfvo type="percent" val="67"/>
                  </iconSet>
                </cfRule>
              </conditionalFormatting>
              <conditionalFormatting sqref="A5">
                <cfRule type="iconSet" priority="5">
                  <iconSet iconSet="4ArrowsGray">
                    <cfvo type="percent" val="0"/>
                    <cfvo type="percent" val="25"/>
                    <cfvo type="percent" val="50"/>
                    <cfvo type="percent" val="75"/>
                  </iconSet>
                </cfRule>
              </conditionalFormatting>
              <conditionalFormatting sqref="A6">
                <cfRule type="iconSet" priority="6">
                  <iconSet iconSet="4Rating">
                    <cfvo type="percent" val="0"/>
                    <cfvo type="percent" val="25"/>
                    <cfvo type="percent" val="50"/>
                    <cfvo type="percent" val="75"/>
                  </iconSet>
                </cfRule>
              </conditionalFormatting>
              <conditionalFormatting sqref="A7">
                <cfRule type="iconSet" priority="7">
                  <iconSet iconSet="5Arrows">
                    <cfvo type="percent" val="0"/>
                    <cfvo type="percent" val="20"/>
                    <cfvo type="percent" val="40"/>
                    <cfvo type="percent" val="60"/>
                    <cfvo type="percent" val="80"/>
                  </iconSet>
                </cfRule>
              </conditionalFormatting>
              <conditionalFormatting sqref="A8">
                <cfRule type="iconSet" priority="8">
                  <iconSet iconSet="5Rating">
                    <cfvo type="percent" val="0"/>
                    <cfvo type="percent" val="20"/>
                    <cfvo type="percent" val="40"/>
                    <cfvo type="percent" val="60"/>
                    <cfvo type="percent" val="80"/>
                  </iconSet>
                </cfRule>
              </conditionalFormatting>
              <pageMargins left="0.7" right="0.7" top="0.75" bottom="0.75" header="0.3" footer="0.3"/>
            </worksheet>
            """
    )
    got = _xml_to_list(fh.getvalue())
    self.assertEqual(got, exp)