Drop 'checksum' machinery

It looks like the 'checksum' machinery is dead, so let's remove it.

Closes #316

lib/test.py

@@ -7,7 +7,6 @@
 import sys
 import traceback
 from functools import partial
-from hashlib import md5
 
 from lib import Options
 from lib.colorer import color_stdout
@@ -167,7 +166,7 @@ def run(self, server):
             it to stdout.
 
             Returns short status of the test as a string: 'skip', 'pass',
-            'new', 'updated' or 'fail' and results file checksum on fail.
+            'new', 'updated' or 'fail'.
             There is also one possible value for short_status, 'disabled',
             but it returned in the caller, TestSuite.run_test().
         """
@@ -237,7 +236,6 @@ def run(self, server):
             self.is_valgrind_clean = not bool(non_empty_logs)
 
         short_status = None
-        result_checksum = None
 
         if self.skip:
             short_status = 'skip'
@@ -272,8 +270,6 @@ def run(self, server):
             if has_result:
                 safe_makedirs(self.var_suite_path)
                 shutil.copy(self.tmp_result, self.reject)
-                with open(self.tmp_result, mode='rb') as result_file:
-                    result_checksum = md5(result_file.read()).hexdigest()
             short_status = 'fail'
             color_stdout("[ fail ]\n", schema='test_fail')
 
@@ -299,7 +295,7 @@ def run(self, server):
                                            "Test failed! Output from log file "
                                            "{0}:\n".format(log_file))
                 where = ": there were warnings in the valgrind log file(s)"
-        return short_status, result_checksum
+        return short_status
 
     def print_diagnostics(self, log_file, message):
         """Print whole lines of client program output leading to test

lib/test_suite.py

@@ -205,12 +205,6 @@ def fragile_tests(self):
                 res.append(test)
         return res
 
-    def get_test_fragile_checksums(self, test):
-        try:
-            return self.fragile['tests'][test]['checksums']
-        except Exception:
-            return []
-
     def gen_server(self):
         try:
             return Server(self.ini, test_suite=self)
@@ -263,7 +257,7 @@ def stop_server(self, server, inspector, silent=False, cleanup=True):
 
     def run_test(self, test, server, inspector):
         """ Returns short status of the test as a string: 'skip', 'pass',
-            'new', 'fail', or 'disabled' and results file checksum on fail.
+            'new', 'fail', or 'disabled'.
         """
         test.inspector = inspector
         test_name = os.path.basename(test.name)
@@ -278,18 +272,17 @@ def run_test(self, test, server, inspector):
 
         start_time = time.time()
         if self.is_test_enabled(test, conf, server):
-            short_status, result_checksum = test.run(server)
+            short_status = test.run(server)
         else:
             color_stdout("[ disabled ]\n", schema='t_name')
             short_status = 'disabled'
-            result_checksum = None
         duration = time.time() - start_time
 
         # cleanup only if test passed or if --force mode enabled
         if Options().args.is_force or short_status == 'pass':
             inspector.cleanup_nondefault()
 
-        return short_status, result_checksum, duration
+        return short_status, duration
 
     def is_parallel(self):
         return self.ini['is_parallel']

lib/worker.py

@@ -143,17 +143,15 @@ class WorkerTaskResult(BaseWorkerMessage):
     """ Passed into the result queue when a task processed (done) by the
     worker. The short_status (string) field intended to give short note whether
     the task processed successfully or not, but with little more flexibility
-    than binary True/False. The result_checksum (string) field saves the results
-    file checksum on test fail. The task_id (any hashable object) field hold ID of
+    than binary True/False. The task_id (any hashable object) field hold ID of
     the processed task. The is_long (boolean) field shows if task is in long test
     list in suite.ini. The duration (float) field saves the task run time. The
     show_reproduce_content configuration from suite.ini.
     """
     def __init__(self, worker_id, worker_name, task_id,
-                 short_status, result_checksum, is_long, duration, show_reproduce_content):
+                 short_status, is_long, duration, show_reproduce_content):
         super(WorkerTaskResult, self).__init__(worker_id, worker_name)
         self.short_status = short_status
-        self.result_checksum = result_checksum
         self.task_id = task_id
         self.is_long = is_long
         self.duration = duration
@@ -222,9 +220,8 @@ def current_task(self, task_id):
         return WorkerCurrentTask(self.id, self.name, task_name, task_param,
                                  task_result, task_tmp_result)
 
-    def wrap_result(self, task_id, short_status, result_checksum, duration):
+    def wrap_result(self, task_id, short_status, duration):
         return WorkerTaskResult(self.id, self.name, task_id, short_status,
-                                result_checksum,
                                 self.suite.test_is_long(task_id), duration,
                                 self.suite.show_reproduce_content())
 
@@ -317,7 +314,7 @@ def run_task(self, task_id):
             with open(self.reproduce_file, 'a') as f:
                 task_id_str = yaml.safe_dump(task.id, default_flow_style=True)
                 f.write('- ' + task_id_str)
-            short_status, result_checksum, duration = self.suite.run_test(
+            short_status, duration = self.suite.run_test(
                 task, self.server, self.inspector)
         except KeyboardInterrupt:
             self.report_keyboard_interrupt()
@@ -327,7 +324,7 @@ def run_task(self, task_id):
                 '\nWorker "%s" received the following error; stopping...\n'
                 % self.name + traceback.format_exc() + '\n', schema='error')
             raise
-        return short_status, result_checksum, duration
+        return short_status, duration
 
     def run_loop(self, task_queue, result_queue):
         """ called from 'run_all' """
@@ -342,11 +339,9 @@ def run_loop(self, task_queue, result_queue):
                 break
 
             short_status = None
-            result_checksum = None
             duration = 0.0
             result_queue.put(self.current_task(task_id))
             testname = os.path.basename(task_id[0])
-            fragile_checksums = self.suite.get_test_fragile_checksums(testname)
             retries_left = self.suite.fragile_retries()
             # let's run till short_status became 'pass'
             while short_status != 'pass' and retries_left >= 0:
@@ -355,18 +350,15 @@ def run_loop(self, task_queue, result_queue):
                 if short_status == 'fail':
                     color_stdout(
                         'Test "%s", conf: "%s"\n'
-                        '\tfrom "fragile" list failed with results'
-                        ' file checksum: "%s", rerunning ...\n'
-                        % (task_id[0], task_id[1], result_checksum), schema='error')
+                        '\tfrom "fragile" list failed, rerunning ...\n'
+                        % (task_id[0], task_id[1]), schema='error')
                 # run task and save the result to short_status
-                short_status, result_checksum, duration = self.run_task(task_id)
-                # check if the results file checksum set on fail and if
-                # the newly created results file is known by checksum
-                if not result_checksum or (result_checksum not in fragile_checksums):
+                short_status, duration = self.run_task(task_id)
+                if testname not in self.suite.fragile['tests']:
                     break
                 retries_left = retries_left - 1
 
-            result_queue.put(self.wrap_result(task_id, short_status, result_checksum, duration))
+            result_queue.put(self.wrap_result(task_id, short_status, duration))
             if short_status == 'fail':
                 if Options().args.is_force:
                     self.restart_server()

listeners.py

@@ -55,7 +55,6 @@ def process_result(self, obj):
         if obj.short_status == 'fail':
             self.failed_tasks.append((obj.task_id,
                                       obj.worker_name,
-                                      obj.result_checksum,
                                       obj.show_reproduce_content))
 
         self.duration_stats[obj.task_id] = obj.duration
@@ -163,11 +162,10 @@ def print_statistics(self):
             return False
 
         color_stdout('Failed tasks:\n', schema='test_var')
-        for task_id, worker_name, result_checksum, show_reproduce_content in self.failed_tasks:
+        for task_id, worker_name, show_reproduce_content in self.failed_tasks:
             logfile = self.get_logfile(worker_name)
             task_id_str = yaml.safe_dump(task_id, default_flow_style=True)
             color_stdout('- %s' % task_id_str, schema='test_var')
-            color_stdout('# results file checksum: %s\n' % result_checksum)
             color_stdout('# logfile:        %s\n' % logfile)
             reproduce_file_path = get_reproduce_file(worker_name)
             color_stdout('# reproduce file: %s\n' % reproduce_file_path)

test-run.py

@@ -175,8 +175,8 @@ def main_loop_consistent(failed_test_ids):
         worker_id = 1
         worker = task_group['gen_worker'](worker_id)
         for task_id in task_ids:
-            # The 'run_task' method returns a tuple of three items:
-            # (short_status, result_checksum, duration). So taking the first
+            # The 'run_task' method returns a tuple of two items:
+            # (short_status, duration). So taking the first
             # item of this tuple for failure check.
             short_status = worker.run_task(task_id)[0]
             if short_status == 'fail':