update tests

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1895703 13f79535-47bb-0310-9956-ffa450edef68

poi/src/main/java/org/apache/poi/ss/usermodel/DataFormatter.java

@@ -204,7 +204,7 @@ public class DataFormatter {
     private final Map<String,Format> formats = new HashMap<>();
 
     /** whether CSV friendly adjustments should be made to the formatted text **/
-    private final boolean emulateCSV;
+    private boolean emulateCSV = false;
 
     /** whether years in dates should be displayed with 4 digits even if the formatString specifies only 2 **/
     private boolean use4DigitYearsInAllDateFormats = false;
@@ -275,6 +275,22 @@ public class DataFormatter {
         this.emulateCSV = emulateCSV;
     }
 
+    /**
+     * @param emulateCSV whether to emulate CSV output (default false).
+     * @since POI 5.2.0
+     */
+    public void setEmulateCSV(boolean emulateCSV) {
+        this.emulateCSV = emulateCSV;
+    }
+
+    /**
+     * @return whether to emulate CSV output (default false).
+     * @since POI 5.2.0
+     */
+    public boolean isEmulateCSV() {
+        return emulateCSV;
+    }
+
     /**
      * @param useCachedValuesForFormulaCells if set to true, when you do not provide a {@link FormulaEvaluator},
      *                                       for cells with formulas, we will return the cached value for the cell (if available),

poi/src/test/java/org/apache/poi/ss/usermodel/TestDataFormatter.java

@@ -83,6 +83,36 @@ class TestDataFormatter {
                     + "Having: " + System.getProperty("user.language") + "/" + System.getProperty("user.country"));
     }
 
+    @Test
+    void setEmulateCSV() {
+        DataFormatter dataFormatter = new DataFormatter();
+        assertFalse(dataFormatter.isEmulateCSV());
+        dataFormatter.setEmulateCSV(true);
+        assertTrue(dataFormatter.isEmulateCSV());
+        dataFormatter.setEmulateCSV(false);
+        assertFalse(dataFormatter.isEmulateCSV());
+    }
+
+    @Test
+    void setUse4DigitYearsInAllDateFormats() {
+        DataFormatter dataFormatter = new DataFormatter();
+        assertFalse(dataFormatter.use4DigitYearsInAllDateFormats());
+        dataFormatter.setUse4DigitYearsInAllDateFormats(true);
+        assertTrue(dataFormatter.use4DigitYearsInAllDateFormats());
+        dataFormatter.setUse4DigitYearsInAllDateFormats(false);
+        assertFalse(dataFormatter.use4DigitYearsInAllDateFormats());
+    }
+
+    @Test
+    void useCachedValuesForFormulaCells() {
+        DataFormatter dataFormatter = new DataFormatter();
+        assertFalse(dataFormatter.useCachedValuesForFormulaCells());
+        dataFormatter.setUseCachedValuesForFormulaCells(true);
+        assertTrue(dataFormatter.useCachedValuesForFormulaCells());
+        dataFormatter.setUseCachedValuesForFormulaCells(false);
+        assertFalse(dataFormatter.useCachedValuesForFormulaCells());
+    }
+
     /**
      * Test that we use the specified locale when deciding
      *   how to format normal numbers