[reposense#1990] Move TimeUtil ParseException throwing to ArgsParser:…

…:parse method (reposense#2075)

ArgsParser::parse uses the methods verifyDatesRangeIsCorrect
and verifySinceDateIsValid from TimeUtil to throw a 
ParseException if either of the checks fail. The throwing 
of an exception in a utility method is a side effect
that makes the methods less reusable.

Let's move the throwing of ParseException from TimeUtil 
into ArgsParser.

src/main/java/reposense/parser/ArgsParser.java

@@ -80,6 +80,10 @@ public class ArgsParser {
     private static final String MESSAGE_INVALID_CONFIG_JSON = "%s Ignoring the report config provided.";
     private static final String MESSAGE_SINCE_D1_WITH_PERIOD = "You may be using --since d1 with the --period flag. "
             + "This may result in an incorrect date range being analysed.";
+    private static final String MESSAGE_SINCE_DATE_LATER_THAN_UNTIL_DATE =
+            "\"Since Date\" cannot be later than \"Until Date\".";
+    private static final String MESSAGE_SINCE_DATE_LATER_THAN_TODAY_DATE =
+            "\"Since Date\" must not be later than today's date.";
     private static final Path EMPTY_PATH = Paths.get("");
     private static final Path DEFAULT_CONFIG_PATH = Paths.get(System.getProperty("user.dir")
             + File.separator + "config" + File.separator);
@@ -420,8 +424,13 @@ private static void addAnalysisDatesToBuilder(CliArguments.Builder builder, Name
                 ? untilDate
                 : currentDate;
 
-        TimeUtil.verifySinceDateIsValid(sinceDate, currentDate);
-        TimeUtil.verifyDatesRangeIsCorrect(sinceDate, untilDate);
+        if (sinceDate.compareTo(currentDate) > 0) {
+            throw new ParseException(MESSAGE_SINCE_DATE_LATER_THAN_TODAY_DATE);
+        }
+
+        if (sinceDate.compareTo(untilDate) > 0) {
+            throw new ParseException(MESSAGE_SINCE_DATE_LATER_THAN_UNTIL_DATE);
+        }
 
         builder.sinceDate(sinceDate)
                 .isSinceDateProvided(isSinceDateProvided)

src/main/java/reposense/util/TimeUtil.java

@@ -9,7 +9,6 @@
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import reposense.parser.ParseException;
 import reposense.parser.SinceDateArgumentType;
 import reposense.system.LogsManager;
 
@@ -23,10 +22,6 @@ public class TimeUtil {
 
     // "uuuu" is used for year since "yyyy" does not work with ResolverStyle.STRICT
     private static final DateTimeFormatter CLI_ARGS_DATE_FORMAT = DateTimeFormatter.ofPattern("d/M/uuuu HH:mm:ss");
-    private static final String MESSAGE_SINCE_DATE_LATER_THAN_UNTIL_DATE =
-            "\"Since Date\" cannot be later than \"Until Date\".";
-    private static final String MESSAGE_SINCE_DATE_LATER_THAN_TODAY_DATE =
-            "\"Since Date\" must not be later than today's date.";
 
     private static final String EARLIEST_VALID_DATE = "1970-01-01T00:00:00";
     private static final String LATEST_VALID_DATE = "2099-12-31T23:59:59";
@@ -168,30 +163,6 @@ public static boolean isEqualToArbitraryFirstDateConverted(LocalDateTime dateTim
         return dateTime.equals(getArbitraryFirstCommitDateConverted(zoneId));
     }
 
-    /**
-     * Verifies that {@code sinceDate} is earlier than {@code untilDate}.
-     *
-     * @throws ParseException if {@code sinceDate} supplied is later than {@code untilDate}.
-     */
-    public static void verifyDatesRangeIsCorrect(LocalDateTime sinceDate, LocalDateTime untilDate)
-            throws ParseException {
-        if (sinceDate.compareTo(untilDate) > 0) {
-            throw new ParseException(MESSAGE_SINCE_DATE_LATER_THAN_UNTIL_DATE);
-        }
-    }
-
-    /**
-     * Verifies that {@code sinceDate} is no later than the date of report generation, given by {@code currentDate}.
-     *
-     * @throws ParseException if {@code sinceDate} supplied is later than date of report generation.
-     */
-    public static void verifySinceDateIsValid(LocalDateTime sinceDate, LocalDateTime currentDate)
-            throws ParseException {
-        if (sinceDate.compareTo(currentDate) > 0) {
-            throw new ParseException(MESSAGE_SINCE_DATE_LATER_THAN_TODAY_DATE);
-        }
-    }
-
     /**
      * Extracts the first substring of {@code date} string that matches the {@code DATE_FORMAT_REGEX}.
      */

src/test/java/reposense/parser/ArgsParserTest.java

@@ -11,6 +11,7 @@
 import java.time.LocalDateTime;
 import java.time.Month;
 import java.time.ZoneId;
+import java.time.format.DateTimeFormatter;
 import java.util.Arrays;
 import java.util.List;
 
@@ -606,6 +607,36 @@ public void sinceDate_laterThanUntilDate_throwsParseException() {
         Assertions.assertThrows(ParseException.class, () -> ArgsParser.parse(translateCommandline(input)));
     }
 
+    @Test
+    public void sinceDate_laterThanCurrentDate_throwsParseException() {
+        LocalDateTime tomorrowDateTime = LocalDateTime.now()
+                .plusDays(1L);
+        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd/MM/yyyy");
+        String tomorrow = tomorrowDateTime.format(formatter);
+
+
+        String input = DEFAULT_INPUT_BUILDER.addSinceDate(tomorrow)
+                .build();
+        Assertions.assertThrows(ParseException.class, () -> ArgsParser.parse(translateCommandline(input)));
+    }
+
+    @Test
+    public void sinceDate_beforeUntilDateAndLaterThanCurrentDate_throwsParseException() {
+        LocalDateTime tomorrowDateTime = LocalDateTime.now()
+                .plusDays(1L);
+        LocalDateTime dayAfterDateTime = LocalDateTime.now()
+                .plusDays(2L);
+
+        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd/MM/yyyy");
+        String tomorrow = tomorrowDateTime.format(formatter);
+        String dayAfter = dayAfterDateTime.format(formatter);
+
+        String input = DEFAULT_INPUT_BUILDER.addSinceDate(tomorrow)
+                .addUntilDate(dayAfter)
+                .build();
+        Assertions.assertThrows(ParseException.class, () -> ArgsParser.parse(translateCommandline(input)));
+    }
+
     @Test
     public void period_withBothSinceDateAndUntilDate_throwsParseException() {
         String input = DEFAULT_INPUT_BUILDER.addPeriod("18d")