lib/oeqa/runtime: smart: add checks for smart output

Sometimes smart throws:

    Committing transaction...
    Preparing...                    ######################################## [  0%]
       1:Removing psplash-default   ######################################## [100%]
    error: Couldn't fork %postun: Cannot allocate memory

and returns a 0 exit code (it thinks it succesfully removed the package,
when in reality it didn't), so we need to catch those specifically.

Also, sometimes output from download command is:
    Saving cache...http://192.168.7.1:49456/rpm/x86_64_x32/psplash-default-0.1+git0+afd4e228c6-r15.x86_64_x32.rpm
and that tricks our smart download test, so use a regex there.

(From OE-Core rev: 2ac7783e04f5e8e6005f967e1a6dd65d2fc6a19a)

Signed-off-by: Stefan Stanacar <stefanx.stanacar@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oeqa/runtime/smart.py

@@ -1,4 +1,5 @@
 import unittest
+import re
 from oeqa.oetest import oeRuntimeTest
 from oeqa.utils.decorators import *
 from oeqa.utils.httpserver import HTTPService
@@ -19,6 +20,7 @@ class SmartTest(oeRuntimeTest):
         status, output = self.target.run(command)
         message = os.linesep.join([command, output])
         self.assertEqual(status, expected, message)
+        self.assertFalse("Cannot allocate memory" in output, message)
         return output
 
 class SmartBasicTest(SmartTest):
@@ -95,13 +97,11 @@ class SmartRepoTest(SmartTest):
 
     @skipUnlessPassed('test_smart_channel_add')
     def test_smart_install_from_http(self):
-        url = 'http://'
         output = self.smart('download --urls psplash-default')
-        for line in output.splitlines():
-            if line.startswith(url):
-                url = line
+        url = re.search('(http://.*/psplash-default.*\.rpm)', output)
+        self.assertTrue(url, msg="Couln't find download url in %s" % output)
         self.smart('remove -y psplash-default')
-        self.smart('install -y %s' % url)
+        self.smart('install -y %s' % url.group(0))
 
     @skipUnlessPassed('test_smart_install')
     def test_smart_reinstall(self):