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SystemClockTest.scala
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SystemClockTest.scala
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import org.junit.Assert._
import java.util.{Calendar, Date}
import org.scalatest.FunSuite
import org.scalatest.BeforeAndAfter
import utils.SystemClock
class SystemClockTest extends FunSuite with BeforeAndAfter {
var Calendar cal
before {
val gmt = TimeZone.getTimeZone("GMT")
cal = Calendar.getInstance(gmt)
cal.set(Calendar.YEAR, 2009)
cal.set(Calendar.MONTH, 7) // August
cal.set(Calendar.DATE, 24)
cal.set(Calendar.HOUR_OF_DAY, 14)
cal.set(Calendar.MINUTE, 24)
cal.set(Calendar.SECOND, 55)
cal.set(Calendar.MILLISECOND, 123)
}
after {
SystemClock.unfreezeTime
}
test("no frozen time") {
val d = new Date
assert(SystemClock.now().getTime() - d.getTime() < 100)
}
test("frozen time") {
val d = new Date
d.setTime(42)
SystemClock.freezeTime(d)
assert(d === SystemClock.now)
}
test("freezing with calendar") {
SystemClock.freezeTime(cal)
assert(cal.getTime === SystemClock.now)
}
test("freezing with string") {
SystemClock.freezeTime("2009-08-24T14:24:55.123Z")
assert(cal.getTime === SystemClock.now)
}
test("melting") {
val testStart = new Date
val d = cal.getTime
SystemClock.freezeTime(d)
assert(d === SystemClock.now)
SystemClock.unfreezeTime
assert(SystemClock.now.getTime - testStart.getTime < 100)
}
test("get frozen calendar instance") {
val d = new Date
SystemClock.freezeTime(d)
assert(d === SystemClock.getCalendarInstance().getTime)
}
test("parse") {
val ms = cal.getTimeInMillis()
// with milliseconds
var pd = SystemClock.parse("2009-08-24T14:24:55.123Z")
assertNotNull(pd)
assert(ms === pd.getTime)
// without milliseconds
pd = SystemClock.parse("2009-08-24T14:24:55Z")
assertNotNull(pd)
assert(ms - 123 === pd.getTime)
// GMT as "+00:00"
pd = SystemClock.parse("2009-08-24T14:24:55.123+00:00")
assertNotNull(pd)
assert(ms === pd.getTime)
// Different time zone
val laterPd = SystemClock.parse("2009-08-24T14:24:55.123+00:30")
assertNotNull(laterPd)
assert(ms - (30L*60L*1000L) === laterPd.getTime)
}
test("parse bad strings") {
assertNull(SystemClock.parse("bad date"))
}
test("no time zone is null") {
assertNull(SystemClock.parse("2009-08-24T14:24:55.123"))
}
test("toTS") {
val s = "2009-08-24T14:24:55.123Z"
val pd = SystemClock.parse(s)
assert(s === SystemClock.toTS(pd))
assert(null === SystemClock.toTS(null))
}
}