"{ Encoding: utf8 }"

"{ Package: 'stx:goodies/regression' }"

"{ NameSpace: RegressionTests }"

TestCase subclass:#DelayTest
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	category:'tests-Regression-Processes'
!


!DelayTest class methodsFor:'queries'!

coveredClasses
    ^ Array with:Delay

    "Created: / 05-07-2011 / 09:51:28 / cg"
! !

!DelayTest methodsFor:'tests'!

test1
    |n verbose delayMultiplier|

    verbose := false.

    "/ sorry, but the test machines are much too slow, give them more time
"/    delayMultiplier := 1.
    delayMultiplier := 2.

    [
        n := 0.
        [n < 10] whileTrue:[
           Delay waitForSeconds:(delayMultiplier * 0.1).
           verbose ifTrue:[ Transcript showCR:n ].
           n := n + 1.
        ]
    ] forkAt:(Processor activePriority - 1).

    self assert:(n == nil).     "because the process has lower prio and should not run"

    Delay waitForSeconds:(delayMultiplier * 0.05).

    self assert:(n == 0).       "because I should have interrupted the process"

    Delay waitForSeconds:(delayMultiplier * 1.5).

    self assert:(n == 10).      "because process should be complete now"

    "
     self basicNew test1
    "

    "Modified: / 10-01-2012 / 19:25:22 / cg"
    "Modified: / 28-03-2019 / 10:57:26 / Claus Gittinger"
!

test2
    |n verbose delayMultiplier|

    "/ sorry, but the test machines are much too slow, give them more time
    delayMultiplier := 5.   
"/    delayMultiplier := 1.

    verbose := false.
    n := 0.

    [
        [n < 10] whileTrue:[
           Delay waitForSeconds:(delayMultiplier * 0.1).
           verbose ifTrue:[ Transcript showCR:n ].
           n := n + 1.
        ]
    ] forkAt:(Processor activePriority + 1).

    self assert:(n == 0) description:'thread with delays should not have started yet, because its first action is a delay'.
    Delay waitForSeconds:(delayMultiplier * 1.1).
    self assert:(n == 10) description:('thread with delays should have finished by now (n=%d)' bindWith:n).

    "
     self basicNew test2
    "

    "Modified: / 10-01-2012 / 19:25:35 / cg"
    "Modified: / 28-03-2019 / 10:57:36 / Claus Gittinger"
    "Modified: / 03-05-2019 / 10:52:32 / Stefan Reise"
!

test3_longDelay
    "in stx6.2.1, the following does not wait, due to an overflow in
     the millisecond computation..."

    |stillWaiting watchDogBite|

    [
        watchDogBite := false.
        stillWaiting := true.
        Delay waitForSeconds:1000000.
        stillWaiting := false.
    ] valueWithWatchDog:[ watchDogBite := true] afterMilliseconds:500.

    self assert:stillWaiting.
    self assert:watchDogBite.

    "
     self basicNew test3_longDelay
    "

    "Created: / 31-07-2011 / 18:44:53 / cg"
    "Modified: / 28-03-2019 / 10:57:49 / Claus Gittinger"
!

test4
    "check that we can wake up early and the watchdog does not bite"

    |longDelay waitTime watchDogBite|

    longDelay := Delay forSeconds:1000000.
    [
        Delay waitForSeconds:0.5.
        longDelay resume.
    ] fork.

    waitTime := Time millisecondsToRun:[
        "never wait longer than 10 seconds"
        [
            longDelay wait.
        ] valueWithWatchDog:[ watchDogBite := true] afterMilliseconds:3000.
    ].
    self assert:watchDogBite ~~ true.
    self assert:waitTime < 600.

    "
     self basicNew test4
    "

    "Modified: / 29-03-2019 / 12:03:32 / Claus Gittinger"
!

test5
    "check that a watchdog does bark"

    |longDelay waitTime watchDogBite|

    longDelay := Delay forSeconds:1000000.

    waitTime := Time millisecondsToRun:[
        "never wait longer than 10 seconds"
        [
            longDelay wait.
        ] valueWithWatchDog:[ watchDogBite := true] afterMilliseconds:500.
    ].
    self assert:watchDogBite == true.
    self assert:waitTime < 600.

    "
     self basicNew test5
    "

    "Created: / 29-03-2019 / 12:02:46 / Claus Gittinger"
! !

!DelayTest class methodsFor:'documentation'!

version
    ^ '$Header$'
!

version_CVS
    ^ '$Header$'
! !