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topotest: fix Lou's framework command wait

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Fix two main issues:

  * Don't use float to figure out if we spent the time user asked;
  * Don't depend on system clock to find we reached the end of time;

The fix is basically pre caculating the amount of wait cycles we are
going to peform and use a counter.

Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
This commit is contained in:
Rafael Zalamena 2019-07-18 10:56:50 -03:00
parent dfd15ebfa6
commit 2a76b0a8e2
1 changed files with 10 additions and 5 deletions
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15
tests/topotests/lib/lutil.py
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@ -22,6 +22,7 @@ import sys
import time import time
import datetime import datetime
import json import json
import math
from topolog import logger from topolog import logger
from mininet.net import Mininet from mininet.net import Mininet
@ -248,14 +249,18 @@ Total %-4d %-4d %d\n\
found = False found = False
n = 0 n = 0
startt = time.time() startt = time.time()
delta = time.time() - startt
while delta < wait and found is False: # Calculate the amount of `sleep`s we are going to peform.
wait_count = int(math.ceil(wait / 0.5))
while wait_count > 0 and found is False:
found = self.command(target, command, regexp, op, result, returnJson) found = self.command(target, command, regexp, op, result, returnJson)
wait_count -= 1
n+=1 n+=1
delta = time.time() - startt if wait_count > 0 and found is False:
self.log('\tFound: %s n: %s delta: %s and wait: %s' % (found, n, delta, wait))
if delta < wait and found is False:
time.sleep (0.5) time.sleep (0.5)
delta = time.time() - startt
self.log('Done after %d loops, time=%s, Found=%s' % (n, delta, found)) self.log('Done after %d loops, time=%s, Found=%s' % (n, delta, found))
found = self.command(target, command, regexp, 'pass', '%s +%4.2f secs' % (result, delta), returnJson) found = self.command(target, command, regexp, 'pass', '%s +%4.2f secs' % (result, delta), returnJson)
return found return found