tdf#145235: sc_text_functions_test: Add unittest

Change-Id: I27e04ab776923c300831062bbeede8d831a54245
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/123895
Tested-by: Jenkins
Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org>
diff --git a/sc/qa/unit/data/functions/text/fods/textjoin.fods b/sc/qa/unit/data/functions/text/fods/textjoin.fods
index 0a0d933..3f8062b 100644
--- a/sc/qa/unit/data/functions/text/fods/textjoin.fods
+++ b/sc/qa/unit/data/functions/text/fods/textjoin.fods
@@ -1419,6 +1419,31 @@
     <table:table-cell table:style-name="ce9"/>
     <table:table-cell table:number-columns-repeated="5"/>
    </table:table-row>
    <table:table-row table:style-name="ro2">
     <table:table-cell table:style-name="ce19" table:formula="of:=COM.MICROSOFT.TEXTJOIN(&quot;-&quot;;1;I13:K13)" office:value-type="string" office:string-value="A-C" calcext:value-type="string">
      <text:p>A-C</text:p>
     </table:table-cell>
     <table:table-cell office:value-type="string" calcext:value-type="string">
      <text:p>A-C</text:p>
     </table:table-cell>
     <table:table-cell table:style-name="ce32" table:formula="of:=[.A13]=[.B13]" 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="ce11" table:formula="of:=FORMULA([.A13])" office:value-type="string" office:string-value="=TEXTJOIN(&quot;-&quot;,1,I13:K13)" calcext:value-type="string">
      <text:p>=TEXTJOIN(&quot;-&quot;,1,I13:K13)</text:p>
     </table:table-cell>
     <table:table-cell table:number-columns-repeated="4"/>
     <table:table-cell table:style-name="ce9" office:value-type="string" calcext:value-type="string">
      <text:p>A</text:p>
     </table:table-cell>
     <table:table-cell table:formula="of:=[.F13]" office:value-type="float" office:value="0" calcext:value-type="float">
      <text:p>0</text:p>
     </table:table-cell>
     <table:table-cell table:style-name="ce9" office:value-type="string" calcext:value-type="string">
      <text:p>C</text:p>
     </table:table-cell>
     <table:table-cell/>
    </table:table-row>
    <table:table-row table:style-name="ro7">
     <table:table-cell/>
     <table:table-cell table:style-name="ce17"/>