oeqa.buildperf: derive BuildPerfTestCase class from unitest.TestCase

Rename BuildPerfTest to BuildPerfTestCase and convert it to be derived
from TestCase class from the unittest framework of the Python standard
library. This doesn't work with our existing testcases or test runner
class and these need to be modified, too.

(From OE-Core rev: b0b434210a3dbd576f68344e29b8c20d18561099)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oeqa/buildperf/__init__.py

@@ -10,6 +10,8 @@
 # more details.
 #
 """Build performance tests"""
-from .base import (perf_test_case, BuildPerfTest, BuildPerfTestRunner,
+from .base import (perf_test_case,
+                   BuildPerfTestCase,
+                   BuildPerfTestRunner,
                    KernelDropCaches)
 from .test_basic import *

meta/lib/oeqa/buildperf/base.py

@@ -19,6 +19,7 @@ import socket
 import tempfile
 import time
 import traceback
+import unittest
 from datetime import datetime, timedelta
 
 from oeqa.utils.commands import runCmd, get_bb_vars
@@ -191,50 +192,34 @@ def perf_test_case(obj):
     return obj
 
 
-class BuildPerfTest(object):
+class BuildPerfTestCase(unittest.TestCase):
     """Base class for build performance tests"""
     SYSRES = 'sysres'
     DISKUSAGE = 'diskusage'
 
-    name = None
-    description = None
-
-    def __init__(self, out_dir):
-        self.out_dir = out_dir
-        self.results = {'name':self.name,
-                        'description': self.description,
-                        'status': 'NOTRUN',
-                        'start_time': None,
-                        'elapsed_time': None,
-                        'measurements': []}
-        if not os.path.exists(self.out_dir):
-            os.makedirs(self.out_dir)
-        if not self.name:
-            self.name = self.__class__.__name__
+    def __init__(self, *args, **kwargs):
+        super(BuildPerfTestCase, self).__init__(*args, **kwargs)
+        self.name = self._testMethodName
+        self.out_dir = None
+        self.start_time = None
+        self.elapsed_time = None
+        self.measurements = []
         self.bb_vars = get_bb_vars()
-        # TODO: remove the _failed flag when globalres.log is ditched as all
-        # failures should raise an exception
-        self._failed = False
-        self.cmd_log = os.path.join(self.out_dir, 'commands.log')
+        # TODO: remove 'times' and 'sizes' arrays when globalres support is
+        # removed
+        self.times = []
+        self.sizes = []
 
-    def run(self):
+    def run(self, *args, **kwargs):
         """Run test"""
-        self.results['status'] = 'FAILED'
-        self.results['start_time'] = datetime.now()
-        self._run()
-        self.results['elapsed_time'] = (datetime.now() -
-                                        self.results['start_time'])
-        # Test is regarded as completed if it doesn't raise an exception
-        if not self._failed:
-            self.results['status'] = 'COMPLETED'
-
-    def _run(self):
-        """Actual test payload"""
-        raise NotImplementedError
+        self.start_time = datetime.now()
+        super(BuildPerfTestCase, self).run(*args, **kwargs)
+        self.elapsed_time = datetime.now() - self.start_time
 
     def log_cmd_output(self, cmd):
         """Run a command and log it's output"""
-        with open(self.cmd_log, 'a') as fobj:
+        cmd_log = os.path.join(self.out_dir, 'commands.log')
+        with open(cmd_log, 'a') as fobj:
             runCmd(cmd, stdout=fobj)
 
     def measure_cmd_resources(self, cmd, name, legend):
@@ -255,7 +240,8 @@ class BuildPerfTest(object):
 
         cmd_str = cmd if isinstance(cmd, str) else ' '.join(cmd)
         log.info("Timing command: %s", cmd_str)
-        with open(self.cmd_log, 'a') as fobj:
+        cmd_log = os.path.join(self.out_dir, 'commands.log')
+        with open(cmd_log, 'a') as fobj:
             ret, timedata = time_cmd(cmd, stdout=fobj)
         if ret.status:
             log.error("Time will be reported as 0. Command failed: %s",
@@ -270,12 +256,17 @@ class BuildPerfTest(object):
                        'name': name,
                        'legend': legend}
         measurement['values'] = {'elapsed_time': etime}
-        self.results['measurements'].append(measurement)
+        self.measurements.append(measurement)
+        e_sec = etime.total_seconds()
         nlogs = len(glob.glob(self.out_dir + '/results.log*'))
         results_log = os.path.join(self.out_dir,
                                    'results.log.{}'.format(nlogs + 1))
         with open(results_log, 'w') as fobj:
             fobj.write(timedata)
+        # Append to 'times' array for globalres log
+        self.times.append('{:d}:{:02d}:{:.2f}'.format(int(e_sec / 3600),
+                                                      int((e_sec % 3600) / 60),
+                                                       e_sec % 60))
 
     def measure_disk_usage(self, path, name, legend):
         """Estimate disk usage of a file or directory"""
@@ -293,7 +284,9 @@ class BuildPerfTest(object):
                        'name': name,
                        'legend': legend}
         measurement['values'] = {'size': size}
-        self.results['measurements'].append(measurement)
+        self.measurements.append(measurement)
+        # Append to 'sizes' array for globalres log
+        self.sizes.append(str(size))
 
     def save_buildstats(self):
         """Save buildstats"""