[PATCH] oeqa/runtime/cases: make date.DateTest.test_date more reliable

["Alexandre Belloni" <alexandre.belloni@bootlin.com>]

The test uses the broken out time and can only handle about 59s of delay,
use a UNIX timestamp to allow for up to a 300s delay.

[YOCTO #14463]

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 meta/lib/oeqa/runtime/cases/date.py | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/meta/lib/oeqa/runtime/cases/date.py b/meta/lib/oeqa/runtime/cases/date.py
index e14322911d6b..bd6537400e28 100644
--- a/meta/lib/oeqa/runtime/cases/date.py
+++ b/meta/lib/oeqa/runtime/cases/date.py
@@ -28,14 +28,13 @@ class DateTest(OERuntimeTestCase):
         self.assertEqual(status, 0, msg=msg)
         oldDate = output
 
-        sampleDate = '"2016-08-09 10:00:00"'
-        (status, output) = self.target.run("date -s %s" % sampleDate)
+        sampleTimestamp = 1488800000
+        (status, output) = self.target.run("date -s @%d" % sampleTimestamp)
         self.assertEqual(status, 0, msg='Date set failed, output: %s' % output)
 
-        (status, output) = self.target.run("date -R")
-        p = re.match('Tue, 09 Aug 2016 10:00:.. \+0000', output)
+        (status, output) = self.target.run('date +"%s"')
         msg = 'The date was not set correctly, output: %s' % output
-        self.assertTrue(p, msg=msg)
+        self.assertTrue(int(output) - sampleTimestamp < 300, msg=msg)
 
         (status, output) = self.target.run('date -s "%s"' % oldDate)
         msg = 'Failed to reset date, output: %s' % output
-- 
2.31.1