add tests for concat function

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1891874 13f79535-47bb-0310-9956-ffa450edef68

poi/src/test/java/org/apache/poi/ss/formula/functions/TestConcat.java

@@ -51,7 +51,7 @@ final class TestConcat {
     }
 
     @Test
-    void testConcatWithCellRefs() throws IOException {
+    void testConcatWithCellRanges() throws IOException {
         try (HSSFWorkbook wb = initWorkbook1()) {
             HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
             HSSFCell cell = wb.getSheetAt(0).getRow(0).createCell(0);
@@ -59,6 +59,20 @@ final class TestConcat {
         }
     }
 
+    @Test
+    void testConcatWithCellRefs() throws IOException {
+        try (HSSFWorkbook wb = initWorkbook2()) {
+            HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
+            HSSFCell cell = wb.getSheetAt(0).createRow(5).createCell(0);
+            confirmResult(fe, cell, "CONCAT(\"Stream population for \", A2,\" \", A3, \" is \", A4, \"/mile.\")",
+                    "Stream population for brook trout species is 32/mile.");
+            confirmResult(fe, cell, "CONCAT(B2,\" \", C2)", "Andreas Hauser");
+            confirmResult(fe, cell, "CONCAT(C2, \", \", B2)", "Hauser, Andreas");
+            confirmResult(fe, cell, "CONCAT(B3,\" & \", C3)", "Fourth & Pine");
+            confirmResult(fe, cell, "B3 & \" & \" & C3", "Fourth & Pine");
+        }
+    }
+
     private HSSFWorkbook initWorkbook1() {
         HSSFWorkbook wb = new HSSFWorkbook();
         HSSFSheet sheet = wb.createSheet();
@@ -71,6 +85,16 @@ final class TestConcat {
         return wb;
     }
 
+    private HSSFWorkbook initWorkbook2() {
+        HSSFWorkbook wb = new HSSFWorkbook();
+        HSSFSheet sheet = wb.createSheet();
+        addRow(sheet, 0, "Data", "First Name", "Last name");
+        addRow(sheet, 1, "brook trout", "Andreas", "Hauser");
+        addRow(sheet, 2, "species", "Fourth", "Pine");
+        addRow(sheet, 3, "32");
+        return wb;
+    }
+
     private void addRow(HSSFSheet sheet, int rownum, String... values) {
         HSSFRow row = sheet.createRow(rownum);
         for (int i = 0; i < values.length; i++) {