fdo#86572: Write test for this.

Change-Id: I00c3eaac473f0464e923e785cc50ad6769c78d41

sc/qa/unit/ucalc.hxx

@@ -327,6 +327,7 @@ public:
     void testSharedFormulaMoveBlock();
     void testSharedFormulaUpdateOnNamedRangeChange();
     void testSharedFormulaUpdateOnDBChange();
+    void testSharedFormulaAbsCellListener();
     void testFormulaPosition();
 
     void testMixData();
@@ -563,6 +564,7 @@ public:
     CPPUNIT_TEST(testSharedFormulaInsertColumn);
     CPPUNIT_TEST(testSharedFormulaUpdateOnNamedRangeChange);
     CPPUNIT_TEST(testSharedFormulaUpdateOnDBChange);
+    CPPUNIT_TEST(testSharedFormulaAbsCellListener);
     CPPUNIT_TEST(testFormulaPosition);
     CPPUNIT_TEST(testMixData);
     CPPUNIT_TEST(testJumpToPrecedentsDependents);

sc/qa/unit/ucalc_sharedformula.cxx

@@ -1656,4 +1656,40 @@ void Test::testSharedFormulaUpdateOnDBChange()
     m_pDoc->DeleteTab(0);
 }
 
+void Test::testSharedFormulaAbsCellListener()
+{
+    sc::AutoCalcSwitch aACSwitch(*m_pDoc, true); // turn on auto calc.
+
+    m_pDoc->InsertTab(0, "Test");
+
+    m_pDoc->SetValue(ScAddress(0,0,0), 1.0);
+
+    const char* pData[][1] = {
+        { "=$A$1" },
+        { "=$A$1" },
+        { "=$A$1" }
+    };
+
+    insertRangeData(m_pDoc, ScAddress(1,0,0), pData, SAL_N_ELEMENTS(pData));
+
+    // A1 should have 3 listeners listening into it.
+    const SvtBroadcaster* pBC = m_pDoc->GetBroadcaster(ScAddress(0,0,0));
+    CPPUNIT_ASSERT(pBC);
+    CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(3), pBC->GetAllListeners().size());
+
+    // Check the formula results.
+    CPPUNIT_ASSERT_EQUAL(1.0, m_pDoc->GetValue(ScAddress(1,0,0)));
+    CPPUNIT_ASSERT_EQUAL(1.0, m_pDoc->GetValue(ScAddress(1,1,0)));
+    CPPUNIT_ASSERT_EQUAL(1.0, m_pDoc->GetValue(ScAddress(1,2,0)));
+
+    // Change the value of A1 and make sure B1:B3 follows.
+    m_pDoc->SetValue(ScAddress(0,0,0), 2.5);
+
+    CPPUNIT_ASSERT_EQUAL(2.5, m_pDoc->GetValue(ScAddress(1,0,0)));
+    CPPUNIT_ASSERT_EQUAL(2.5, m_pDoc->GetValue(ScAddress(1,1,0)));
+    CPPUNIT_ASSERT_EQUAL(2.5, m_pDoc->GetValue(ScAddress(1,2,0)));
+
+    m_pDoc->DeleteTab(0);
+}
+
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */