fdo#75642: Add test case for this.

Change-Id: I220cc3aeac79325e7664461d3bd5219e9e1f04f7

sc/qa/unit/ucalc.cxx

@@ -5575,6 +5575,12 @@ void Test::clearRange(ScDocument* pDoc, const ScRange& rRange)
         rRange.aEnd.Col(), rRange.aEnd.Row(), aMarkData, IDF_CONTENTS);
 }
 
+void Test::clearSheet(ScDocument* pDoc, SCTAB nTab)
+{
+    ScRange aRange(0,0,nTab,MAXCOL,MAXROW,nTab);
+    clearRange(pDoc, aRange);
+}
+
 void Test::copyToClip(ScDocument* pSrcDoc, const ScRange& rRange, ScDocument* pClipDoc)
 {
     ScClipParam aClipParam(rRange, false);

sc/qa/unit/ucalc.hxx

@@ -42,6 +42,7 @@ public:
     static bool insertRangeNames(ScDocument* pDoc, const RangeNameDef* p, const RangeNameDef* pEnd);
     static void printRange(ScDocument* pDoc, const ScRange& rRange, const char* pCaption);
     static void clearRange(ScDocument* pDoc, const ScRange& rRange);
+    static void clearSheet(ScDocument* pDoc, SCTAB nTab);
     static void copyToClip(ScDocument* pSrcDoc, const ScRange& rRange, ScDocument* pClipDoc);
     static void pasteFromClip(ScDocument* pDestDoc, const ScRange& rDestRange, ScDocument* pClipDoc);
     static ScUndoPaste* createUndoPaste(ScDocShell& rDocSh, const ScRange& rRange, ScDocument* pUndoDoc);

sc/qa/unit/ucalc_formula.cxx

@@ -2458,7 +2458,7 @@ void Test::testFuncVLOOKUP()
     }
 
     // Clear the sheet and start over.
-    clearRange(m_pDoc, ScRange(0,0,0,MAXCOL,MAXROW,0));
+    clearSheet(m_pDoc, 0);
 
     // Lookup on sorted data intersparsed with empty cells.
 
@@ -2492,6 +2492,22 @@ void Test::testFuncVLOOKUP()
     CPPUNIT_ASSERT_EQUAL(OUString("Four"), m_pDoc->GetString(ScAddress(4,3,0)));
     CPPUNIT_ASSERT_EQUAL(OUString("Four"), m_pDoc->GetString(ScAddress(4,4,0)));
 
+    // Start over again.
+    clearSheet(m_pDoc, 0);
+
+    // Set A,B,....,G to A1:A7.
+    m_pDoc->SetString(ScAddress(0,0,0), "A");
+    m_pDoc->SetString(ScAddress(0,1,0), "B");
+    m_pDoc->SetString(ScAddress(0,2,0), "C");
+    m_pDoc->SetString(ScAddress(0,3,0), "D");
+    m_pDoc->SetString(ScAddress(0,4,0), "E");
+    m_pDoc->SetString(ScAddress(0,5,0), "F");
+    m_pDoc->SetString(ScAddress(0,6,0), "G");
+
+    // Set the formula in C1.
+    m_pDoc->SetString(ScAddress(2,0,0), "=VLOOKUP(\"C\";A1:A16;1)");
+    CPPUNIT_ASSERT_EQUAL(OUString("C"), m_pDoc->GetString(ScAddress(2,0,0)));
+
     m_pDoc->DeleteTab(0);
 }