tdf#136794: sc_mathematical_functions: Add unittest

Change-Id: I2254007a2746acc41fd7e51a9a2630f7009a85e6
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/116043
Tested-by: Jenkins
Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org>
diff --git a/sc/qa/unit/data/functions/mathematical/fods/round.fods b/sc/qa/unit/data/functions/mathematical/fods/round.fods
index d75968c..b8264d7f 100644
--- a/sc/qa/unit/data/functions/mathematical/fods/round.fods
+++ b/sc/qa/unit/data/functions/mathematical/fods/round.fods
@@ -2157,6 +2157,23 @@
     <table:table-cell table:style-name="ce32" table:number-columns-repeated="4"/>
     <table:table-cell/>
    </table:table-row>
    <table:table-row table:style-name="ro2">
     <table:table-cell table:formula="of:=ROUND(6E-027;30)" office:value-type="float" office:value="6E-027" calcext:value-type="float">
      <text:p>6E-27</text:p>
     </table:table-cell>
     <table:table-cell office:value-type="float" office:value="6E-27" calcext:value-type="float">
      <text:p>6E-27</text:p>
     </table:table-cell>
     <table:table-cell table:style-name="ce44" table:formula="of:=[.A19]=[.B19]" office:value-type="boolean" office:boolean-value="true" calcext:value-type="boolean">
      <text:p>TRUE</text:p>
     </table:table-cell>
     <table:table-cell table:style-name="ce21" table:formula="of:=FORMULA([.A19])" office:value-type="string" office:string-value="=ROUND(6E-027,30)" calcext:value-type="string">
      <text:p>=ROUND(6E-027;30)</text:p>
     </table:table-cell>
     <table:table-cell table:number-columns-repeated="5"/>
     <table:table-cell table:style-name="ce32" table:number-columns-repeated="4"/>
     <table:table-cell/>
    </table:table-row>
    <table:table-row table:style-name="ro2" table:number-rows-repeated="2">
     <table:table-cell table:number-columns-repeated="2"/>
     <table:table-cell table:style-name="ce14"/>