[bug-65471] fix DataFormatter so it can handle Ts (ISO 8601)

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1891862 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -98,6 +98,8 @@ public class ExcelStyleDateFormatter extends SimpleDateFormat {
         t = t.replace("[mm]", String.valueOf(MM_BRACKET_SYMBOL));
         t = t.replace("[s]", String.valueOf(S_BRACKET_SYMBOL));
         t = t.replace("[ss]", String.valueOf(SS_BRACKET_SYMBOL));
+        t = t.replace("T", "'T'");
+        t = t.replace("''T''", "'T'");
         t = t.replaceAll("s.000", "s.SSS");
         t = t.replaceAll("s.00", "s." + LL_BRACKET_SYMBOL);
         t = t.replaceAll("s.0", "s." + L_BRACKET_SYMBOL);

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

@@ -123,14 +123,14 @@ final class TestText {
             // Again with Java style
             formatArg = new StringEval("MMMM dd, yyyy");
             args[1] = formatArg;
-            result = TextFunction.TEXT.evaluate(args, -1, (short)-1);
+            result = TextFunction.TEXT.evaluate(args, -1, -1);
             testResult = new StringEval(november + " 16, 1900");
             assertEquals(testResult.toString(), result.toString());
 
             // And Excel style
             formatArg = new StringEval("mmmm dd, yyyy");
             args[1] = formatArg;
-            result = TextFunction.TEXT.evaluate(args, -1, (short)-1);
+            result = TextFunction.TEXT.evaluate(args, -1, -1);
             testResult = new StringEval(november + " 16, 1900");
             assertEquals(testResult.toString(), result.toString());
         } finally {
@@ -138,22 +138,22 @@ final class TestText {
         }
     }
 
-    @Disabled("see https://bz.apache.org/bugzilla/show_bug.cgi?id=65471")
     @Test
     void testTextWithISODateTimeFormatSecondArg() {
-        TimeZone userTZ = LocaleUtil.getUserTimeZone();
-        LocaleUtil.setUserTimeZone(TimeZone.getTimeZone("CET"));
-        try {
-            // Test with Java style M=Month
-            ValueEval numArg = new NumberEval(321.321);
-            ValueEval formatArg = new StringEval("yyyy-mm-ddThh:MM:ss");
-            ValueEval[] args = { numArg, formatArg };
-            ValueEval result = TextFunction.TEXT.evaluate(args, -1, (short)-1);
-            ValueEval testResult = new StringEval("1900-11-16T07:42:14");
-            assertEquals(testResult.toString(), result.toString());
-        } finally {
-            LocaleUtil.setUserTimeZone(userTZ);
-        }
+        ValueEval numArg = new NumberEval(321.321);
+        ValueEval formatArg = new StringEval("yyyy-mm-ddThh:MM:ss");
+        ValueEval[] args = { numArg, formatArg };
+        ValueEval result = TextFunction.TEXT.evaluate(args, -1, -1);
+        ValueEval testResult = new StringEval("1900-11-16T07:42:14");
+        assertEquals(testResult.toString(), result.toString());
+
+        // test milliseconds
+        formatArg = new StringEval("yyyy-mm-ddThh:MM:ss.000");
+        args[1] = formatArg;
+        result = TextFunction.TEXT.evaluate(args, -1, -1);
+        testResult = new StringEval("16:11:1900 07:42:14.400");
+        assertEquals(testResult.toString(), result.toString());
+
     }
 
 }