[githib-107] add areas function support. Thanks to Inji Hanbin. This closes #107

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1830685 13f79535-47bb-0310-9956-ffa450edef68

2 files changed, 43 insertions, 0 deletions

diff --git a/src/testcases/org/apache/poi/ss/formula/functions/AllIndividualFunctionEvaluationTests.java b/src/testcases/org/apache/poi/ss/formula/functions/AllIndividualFunctionEvaluationTests.java
index 272c51a398..bbcf2829d8 100644
--- a/src/testcases/org/apache/poi/ss/formula/functions/AllIndividualFunctionEvaluationTests.java
+++ b/src/testcases/org/apache/poi/ss/formula/functions/AllIndividualFunctionEvaluationTests.java
@@ -57,6 +57,7 @@ import org.junit.runners.Suite;
     TestValue.class,
     TestXYNumericFunction.class,
     TestAddress.class,
+    TestAreas.class,
     TestClean.class
 })
 public class AllIndividualFunctionEvaluationTests {
diff --git a/src/testcases/org/apache/poi/ss/formula/functions/TestAreas.java b/src/testcases/org/apache/poi/ss/formula/functions/TestAreas.java
new file mode 100644
index 0000000000..f2cba46488
--- /dev/null
+++ b/src/testcases/org/apache/poi/ss/formula/functions/TestAreas.java
@@ -0,0 +1,42 @@
+package org.apache.poi.ss.formula.functions;
+
+import junit.framework.TestCase;
+import org.apache.poi.hssf.usermodel.HSSFCell;
+import org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator;
+import org.apache.poi.hssf.usermodel.HSSFWorkbook;
+import org.apache.poi.ss.formula.eval.ErrorEval;
+import org.apache.poi.ss.formula.eval.NumberEval;
+import org.apache.poi.ss.usermodel.CellType;
+import org.apache.poi.ss.usermodel.CellValue;
+
+public final class TestAreas extends TestCase {
+
+    public void testAreas() {
+        HSSFWorkbook wb = new HSSFWorkbook();
+        HSSFCell cell = wb.createSheet().createRow(0).createCell(0);
+        HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
+
+        String formulaText = "AREAS(B1)";
+        confirmResult(fe, cell, formulaText,1.0);
+
+        formulaText = "AREAS(B2:D4)";
+        confirmResult(fe, cell, formulaText,1.0);
+
+        formulaText = "AREAS((B2:D4,E5,F6:I9))";
+        confirmResult(fe, cell, formulaText,3.0);
+
+        formulaText = "AREAS((B2:D4,E5,C3,E4))";
+        confirmResult(fe, cell, formulaText,4.0);
+
+        formulaText = "AREAS((I9))";
+        confirmResult(fe, cell, formulaText,1.0);
+    }
+
+    private static void confirmResult(HSSFFormulaEvaluator fe, HSSFCell cell, String formulaText,Double expectedResult) {
+        cell.setCellFormula(formulaText);
+        fe.notifyUpdateCell(cell);
+        CellValue result = fe.evaluate(cell);
+        assertEquals(result.getCellTypeEnum(), CellType.NUMERIC);
+        assertEquals(expectedResult, result.getNumberValue());
+    }
+}