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Posted to notifications@groovy.apache.org by "Los Pejos (JIRA)" <ji...@apache.org> on 2016/10/10 12:40:22 UTC
[jira] [Created] (GROOVY-7964) TimeCategory incorrectly counts days
difference between two dates
Los Pejos created GROOVY-7964:
---------------------------------
Summary: TimeCategory incorrectly counts days difference between two dates
Key: GROOVY-7964
URL: https://issues.apache.org/jira/browse/GROOVY-7964
Project: Groovy
Issue Type: Bug
Components: groovy-runtime
Affects Versions: 2.4.7
Environment: Windows 10 x86_64, Oracle Java 1.8.0.102 x86_64
Reporter: Los Pejos
TimeCategory incorrectly counts days difference between two dates.
Exhibit (Groovy code):
#!/usr/bin/env groovy
@Grab(group='joda-time', module='joda-time', version='2.9.4+')
import java.io.BufferedReader
import java.io.IOException
import java.io.InputStreamReader
import java.time.LocalDate
import java.time.format.DateTimeFormatter
import java.time.temporal.ChronoUnit
import groovy.time.TimeCategory
String date1 = '2016-03-22'
String date2 = '2016-03-29'
String fmt = 'yyyy-MM-dd'
// Java 8 ChronoUnit:
DateTimeFormatter formatter = DateTimeFormatter.ofPattern(fmt)
//LocalDate firstDate = LocalDate.parse(date1, formatter)
//LocalDate secondDate = LocalDate.parse(date2, formatter)
long days = ChronoUnit.DAYS.between(
LocalDate.parse(date1, formatter),
LocalDate.parse(date2, formatter)
)
println "Java 8 ChronoUnit: Dates between $date1 and $date2 : $days"
// Groovy TimeCategory/Date:
use (TimeCategory){
def d = (Date.parse(fmt, date2) - Date.parse(fmt, date1)).days
println "Groovy TimeCategory/Date: Dates between $date1 and $date2 : $d"
}
// Jode Time:
// LocalDate fromDateFields(Date date)
// Date.parse('yyyy-MM-dd', dlf.@dldpf.toString())
days = org.joda.time.Days.daysBetween(
org.joda.time.LocalDate.fromDateFields(Date.parse(fmt,date1)),
org.joda.time.LocalDate.fromDateFields(Date.parse(fmt,date2))
).getDays()
println "Jode Time: Dates between $date1 and $date2 : $days"
Current Output:
$ groovy DatesDiff.groovy
Java 8 ChronoUnit: Dates between 2016-03-22 and 2016-03-29 : 7
Groovy TimeCategory/Date: Dates between 2016-03-22 and 2016-03-29 : 6
Jode Time: Dates between 2016-03-22 and 2016-03-29 : 7
Expected Output:
$ groovy DatesDiff.groovy
Java 8 ChronoUnit: Dates between 2016-03-22 and 2016-03-29 : 7
Groovy TimeCategory/Date: Dates between 2016-03-22 and 2016-03-29 : 7
Jode Time: Dates between 2016-03-22 and 2016-03-29 : 7
Resume: notice the difference in "Groovy TimeCategory/Date" line.
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