GPU Calc: unit test cases for TRUNC

Need open macro NO_FALLBACK_TO_SWINTERP in formulagroupcl.cxx for test

AMLOEXT-84 BUG

Change-Id: I96d14bd61d6694a5aa2ebf7ca1a53b8ee9de255d
Signed-off-by: haochen <haochen@multicorewareinc.com>
Signed-off-by: I-Jui (Ray) Sung <ray@multicorewareinc.com>

sc/qa/unit/opencl-test.cxx

@@ -204,6 +204,7 @@ public:
     void testMathFormulaEven();
     void testMathFormulaLog();
     void testMathFormulaMod();
+    void testMathFormulaTrunc();
     CPPUNIT_TEST_SUITE(ScOpenclTest);
     CPPUNIT_TEST(testSharedFormulaXLS);
     CPPUNIT_TEST(testFinacialFormula);
@@ -339,6 +340,7 @@ public:
     CPPUNIT_TEST(testMathFormulaEven);
     CPPUNIT_TEST(testMathFormulaLog);
     CPPUNIT_TEST(testMathFormulaMod);
+    CPPUNIT_TEST(testMathFormulaTrunc);
     CPPUNIT_TEST_SUITE_END();
 
 private:
@@ -1720,6 +1722,28 @@ void ScOpenclTest::testStatisticalFormulaRsq()
     xDocSh->DoClose();
     xDocShRes->DoClose();
 }
+//[AMLOEXT-84]
+void ScOpenclTest::testMathFormulaTrunc()
+{
+    if (!detectOpenCLDevice())
+            return;
+    ScDocShellRef xDocSh = loadDoc("opencl/math/trunc.", XLS);
+    ScDocument* pDoc = xDocSh->GetDocument();
+    CPPUNIT_ASSERT(pDoc);
+    enableOpenCL();
+    pDoc->CalcAll();
+    ScDocShellRef xDocShRes = loadDoc("opencl/math/trunc.", XLS);
+    ScDocument* pDocRes = xDocShRes->GetDocument();
+    CPPUNIT_ASSERT(pDocRes);
+    for (SCROW i = 0; i <= 15; ++i)
+    {
+        double fLibre = pDoc->GetValue(ScAddress(2,i,0));
+        double fExcel = pDocRes->GetValue(ScAddress(2,i,0));
+        CPPUNIT_ASSERT_DOUBLES_EQUAL(fExcel, fLibre, fabs(0.0001*fExcel));
+    }
+    xDocSh->DoClose();
+    xDocShRes->DoClose();
+}
 //[AMLOEXT-85]
 void ScOpenclTest::testMathFormulaCosh()
 {

sc/source/core/tool/token.cxx

@@ -1436,6 +1436,7 @@ void ScTokenArray::CheckToken( const FormulaToken& r )
             case ocEven:
             case ocLog:
             case ocMod:
+            case ocTrunc:
             // Don't change the state.
             break;
             default: