Merge branch '424-fix-last-execution-with-day-of-week' of https://git…

…hub.com/IndeedSi/cron-utils into IndeedSi-424-fix-last-execution-with-day-of-week
jmrozanec · Oct 12, 2020 · 93fa7db · 93fa7db
2 parents 6fc84a7 + 0eb50c9
commit 93fa7db
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Showing 3 changed files with 20 additions and 32 deletions.
diff --git a/src/main/java/com/cronutils/model/time/SingleExecutionTime.java b/src/main/java/com/cronutils/model/time/SingleExecutionTime.java
@@ -308,7 +308,7 @@ private ExecutionTimeResult potentialPreviousClosestMatch(final ZonedDateTime da
         final List<Integer> year = yearsValueGenerator.generateCandidates(date.getYear(), date.getYear());
         final Optional<TimeNode> optionalDays = generateDays(cronDefinition, date);
         TimeNode days;
-        if (optionalDays.isPresent()) {
+        if (optionalDays.isPresent() && optionalDays.get().getValues().stream().anyMatch(i -> i <= date.getDayOfMonth())) {
             days = optionalDays.get();
         } else {
             return new ExecutionTimeResult(toEndOfPreviousMonth(date), false);

diff --git a/src/test/java/com/cronutils/Issue424Test.java b/src/test/java/com/cronutils/Issue424Test.java
diff --git a/src/test/java/com/cronutils/model/time/ExecutionTimeQuartzIntegrationTest.java b/src/test/java/com/cronutils/model/time/ExecutionTimeQuartzIntegrationTest.java
@@ -25,6 +25,7 @@
 import java.time.ZonedDateTime;
 import java.time.format.DateTimeFormatter;
 import java.time.temporal.ChronoUnit;
+import java.time.temporal.TemporalAdjusters;
 import java.util.Date;
 import java.util.Optional;
 import java.util.TimeZone;
@@ -841,6 +842,24 @@ public void testLastExecutionIssue312() {
         }
     }
 
+    /**
+     * Issue #424
+     * https://github.com/jmrozanec/cron-utils/issues/424
+     * Last execution time incorrectly calculated when using day of week expression
+     */
+    @Test
+    public void testLastExecutionIssue424() {
+        // Every day at 20:00
+        ExecutionTime executionTime = ExecutionTime.forCron(parser.parse("0 0 12 ? * SUN#4 2020"));
+        LocalDate date = LocalDate.of(2021, 1, 1);
+        LocalTime time = LocalTime.of(0, 0, 0);
+        ZonedDateTime dateTime = ZonedDateTime.of(date, time, ZoneOffset.UTC);
+        for (int index = 0, size = 12; index < size; index++) {
+            dateTime = executionTime.lastExecution(dateTime).orElse(null);
+            assertEquals(LocalDateTime.of(2020, 12 - index, 1, 12, 0, 0).with(TemporalAdjusters.dayOfWeekInMonth(4, DayOfWeek.SUNDAY)), dateTime.toLocalDateTime());
+        }
+    }
+
     private Duration getMinimumInterval(final String quartzPattern) {
         final ExecutionTime executionTime = ExecutionTime.forCron(parser.parse(quartzPattern));
         final ZonedDateTime coolDay = ZonedDateTime.of(2016, 1, 1, 0, 0, 0, 0, UTC);