oeqa/selftest/case.py: Remove machine selection logic

The machine selection is an operation that needs to be made
in every test run, the best place to it is on the context
module.

Use self.tc.custommachine variable instead of use environment.

SIgned-off-by: Leonardo Sandoval <leonardo.sandoval.gonzalez@linux.intel.com>
(From OE-Core rev: f295b70ace0ffc28256140a21af5c3a8903297cb)

Signed-off-by: Aníbal Limón <anibal.limon@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oeqa/selftest/case.py

@@ -6,7 +6,6 @@ import os
 import shutil
 import glob
 import errno
-from random import choice
 from unittest.util import safe_repr
 
 import oeqa.utils.ftools as ftools
@@ -135,16 +134,9 @@ to ensure accurate results.")
                 if e.errno != errno.ENOENT:
                     raise
 
-        # Get CUSTOMMACHINE from env (set by --machine argument to oe-selftest)
+        if self.tc.custommachine:
-        custommachine = os.getenv('CUSTOMMACHINE')
+            machine_conf = 'MACHINE ??= "%s"\n' % self.tc.custommachine
-        if custommachine:
-            if custommachine == 'random':
-                machine = get_random_machine()
-            else:
-                machine = custommachine
-            machine_conf = 'MACHINE ??= "%s"\n' % machine
             self.set_machine_config(machine_conf)
-            print('MACHINE: %s' % machine)
 
         # tests might need their own setup
         # but if they overwrite this one they have to call
@@ -196,8 +188,7 @@ to ensure accurate results.")
         self.logger.debug("Writing to: %s\n%s\n" % (self.testinc_path, data))
         ftools.write_file(self.testinc_path, data)
 
-        custommachine = os.getenv('CUSTOMMACHINE')
+        if self.tc.custommachine and 'MACHINE' in data:
-        if custommachine and 'MACHINE' in data:
             machine = get_bb_var('MACHINE')
             self.logger.warning('MACHINE overridden: %s' % machine)
 
@@ -206,8 +197,7 @@ to ensure accurate results.")
         self.logger.debug("Appending to: %s\n%s\n" % (self.testinc_path, data))
         ftools.append_file(self.testinc_path, data)
 
-        custommachine = os.getenv('CUSTOMMACHINE')
+        if self.tc.custommachine and 'MACHINE' in data:
-        if custommachine and 'MACHINE' in data:
             machine = get_bb_var('MACHINE')
             self.logger.warning('MACHINE overridden: %s' % machine)
 
@@ -274,22 +264,3 @@ to ensure accurate results.")
         if os.path.exists(expr):
             msg = self._formatMessage(msg, "%s exists when it should not" % safe_repr(expr))
             raise self.failureException(msg)
-
-def get_available_machines():
-    # Get a list of all available machines
-    bbpath = get_bb_var('BBPATH').split(':')
-    machines = []
-
-    for path in bbpath:
-        found_machines = glob.glob(os.path.join(path, 'conf', 'machine', '*.conf'))
-        if found_machines:
-            for i in found_machines:
-            # eg: '/home/<user>/poky/meta-intel/conf/machine/intel-core2-32.conf'
-                machines.append(os.path.splitext(os.path.basename(i))[0])
-
-    return machines
-
-
-def get_random_machine():
-    # Get a random machine
-    return choice(get_available_machines())