oeqa/runtime/ldd: Clean up test

* Merge the two tests together as having them separate is pointless
* Test that ldd runs correctly
* Add in a dependency on the "ldd" package being installed instead of
  the sdk tools feature

(From OE-Core rev: 80db456387fb63ee74d53a9719ab3997432f4c80)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oeqa/runtime/cases/ldd.py

@@ -2,24 +2,23 @@ from oeqa.runtime.case import OERuntimeTestCase
 from oeqa.core.decorator.depends import OETestDepends
 from oeqa.core.decorator.oeid import OETestID
 from oeqa.core.decorator.data import skipIfNotFeature
+from oeqa.runtime.decorator.package import OEHasPackage
 
 class LddTest(OERuntimeTestCase):
 
     @OETestID(962)
-    @skipIfNotFeature('tools-sdk',
-                      'Test requires tools-sdk to be in IMAGE_FEATURES')
+    @OEHasPackage(["ldd"])
     @OETestDepends(['ssh.SSHTest.test_ssh'])
-    def test_ldd_exists(self):
+    def test_ldd(self):
         status, output = self.target.run('which ldd')
         msg = 'ldd does not exist in PATH: which ldd: %s' % output
         self.assertEqual(status, 0, msg=msg)
 
-    @OETestID(239)
-    @OETestDepends(['ldd.LddTest.test_ldd_exists'])
-    def test_ldd_rtldlist_check(self):
         cmd = ('for i in $(which ldd | xargs cat | grep "^RTLDLIST"| '
               'cut -d\'=\' -f2|tr -d \'"\'); '
               'do test -f $i && echo $i && break; done')
         status, output = self.target.run(cmd)
-        msg = "ldd path not correct or RTLDLIST files don't exist."
-        self.assertEqual(status, 0, msg=msg)
+        self.assertEqual(status, 0, msg="ldd path not correct or RTLDLIST files don't exist.")
+
+        status, output = self.target.run("ldd /bin/true")
+        self.assertEqual(status, 0, msg="ldd failed to execute: %s" % output)