lib/oeqa/runtime: cleanup and improve output readability for some tests

- move everything in the same test. setUp/tearDown aren't quite
the right thing here, everything it's part of the same test. (and
it get's confusing when ssh fails)

ldd:
   - change test name and add output to error message

vnc:
   - remove unnecessary check as there is no point in doing
both ps and netstat. Also improve error output a bit.

(From OE-Core rev: 2f91bb438cfcdd0a40daed5902b6e98fc0aee67f)

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

meta/lib/oeqa/runtime/date.py

@@ -4,13 +4,12 @@ import re
 
 class DateTest(oeRuntimeTest):
 
-    def setUp(self):
-        (status, output) = self.target.run('date +"%Y-%m-%d %T"')
-        self.assertEqual(status, 0, msg="Failed to get initial date, output: %s" % output)
-        self.oldDate = output
-
     @skipUnlessPassed("test_ssh")
     def test_date(self):
+        (status, output) = self.target.run('date +"%Y-%m-%d %T"')
+        self.assertEqual(status, 0, msg="Failed to get initial date, output: %s" % output)
+        oldDate = output
+
         sampleDate = '"2016-08-09 10:00:00"'
         (status, output) = self.target.run("date -s %s" % sampleDate)
         self.assertEqual(status, 0, msg="Date set failed, output: %s" % output)
@@ -19,6 +18,5 @@ class DateTest(oeRuntimeTest):
         p = re.match('Tue, 09 Aug 2016 10:00:.. \+0000', output)
         self.assertTrue(p, msg="The date was not set correctly, output: %s" % output)
 
-    def tearDown(self):
-        (status, output) = self.target.run('date -s "%s"' % self.oldDate)
+        (status, output) = self.target.run('date -s "%s"' % oldDate)
         self.assertEqual(status, 0, msg="Failed to reset date, output: %s" % output)

meta/lib/oeqa/runtime/ldd.py

@@ -11,9 +11,9 @@ class LddTest(oeRuntimeTest):
     @skipUnlessPassed('test_ssh')
     def test_ldd_exists(self):
         (status, output) = self.target.run('which ldd')
-        self.assertEqual(status, 0, msg = "ldd does not exist in PATH !")
+        self.assertEqual(status, 0, msg = "ldd does not exist in PATH: which ldd: %s" % output)
 
     @skipUnlessPassed('test_ldd_exists')
-    def test_ldd(self):
+    def test_ldd_rtldlist_check(self):
         (status, output) = self.target.run('for i in $(which ldd | xargs cat | grep "^RTLDLIST"|cut -d\'=\' -f2|tr -d \'"\'); do test -f $i && echo $i && break; done')
         self.assertEqual(status, 0, msg = "ldd path not correct or RTLDLIST files don't exist. ")

meta/lib/oeqa/runtime/vnc.py

@@ -9,14 +9,11 @@ class VNCTest(oeRuntimeTest):
 
     @skipUnlessPassed('test_ssh')
     def test_vnc(self):
-        (status, output) = self.target.run('x11vnc -display :0.0 -bg -q')
+        (status, output) = self.target.run('x11vnc -display :0 -bg -o x11vnc.log')
         self.assertEqual(status, 0, msg="x11vnc server failed to start: %s" % output)
         port = re.search('PORT=[0-9]*', output)
         self.assertTrue(port, msg="Listening port not specified in command output: %s" %output)
 
-        (status, output) = self.target.run(oeRuntimeTest.pscmd + ' | grep -i [x]11vnc')
-        self.assertEqual(status, 0, msg="x11vnc process not running")
-
         vncport = port.group(0).split('=')[1]
-        (status, output) = self.target.run('netstat -atun | grep :%s | grep LISTEN' % vncport)
-        self.assertEqual(status, 0, msg="x11vnc server not running on port %s" % vncport)
+        (status, output) = self.target.run('netstat -ntl | grep ":%s"' % vncport)
+        self.assertEqual(status, 0, msg="x11vnc server not running on port %s\n\n%s" % (vncport, self.target.run('netstat -ntl; cat x11vnc.log')[1]))