From 1823f88b3e3002e013fc9d9054301c74a89344de Mon Sep 17 00:00:00 2001
From: Timofey <t.danshin@corp.mail.ru>
Date: Tue, 5 Jan 2016 18:25:51 +0300
Subject: [PATCH] Doing the test parallelization in python. Now we need to be
 able to lock a file to make sure the log is in a consistent state.

---
 tools/integration_tests_runner.py | 137 ++++++++++++++++++++++++++++++
 1 file changed, 137 insertions(+)
 create mode 100644 tools/integration_tests_runner.py

diff --git a/tools/integration_tests_runner.py b/tools/integration_tests_runner.py
new file mode 100644
index 0000000000..d456b57a38
--- /dev/null
+++ b/tools/integration_tests_runner.py
@@ -0,0 +1,137 @@
+from __future__ import print_function
+
+
+__author__ = 't.danshin'
+
+import subprocess
+import multiprocessing
+from threading import Lock
+from threading import Thread
+import traceback
+
+#The idea is that we should run integration tests in parallel. To that end, we need to first get all tests, create a queue and feed tests to it as soon as executors in that queue become free.
+
+
+
+class IntegrationRunner:
+    def __init__(self, exec_file):
+        self.exec_file = exec_file
+        print("Exec file " + exec_file)
+        self.workspace_path = "/Users/t.danshin/Documents/projects/omim-build-release/out/release"
+        self.proc_count = multiprocessing.cpu_count()
+
+        self.file_lock = Lock()
+        self.queue_lock = Lock()
+
+        self.tests = list(self.get_tests_from_exec_file(exec_file, "--list_tests")[0])
+        self.tests.reverse()
+        print("Self.tests are: ")
+        print(self.tests)
+
+        # self.buckets = self.split_tests_into_buckets()
+
+        # print("Bucket 1 = ")
+        # print(self.buckets[1])
+
+        self.file = open("python_log.log", "w")
+
+
+        # self.exec_tests_in_bucket(self.buckets[1])
+
+        threads = list()
+
+        for i in range(0, self.proc_count):
+            thread = Thread(target=self.exec_tests_in_bucket)
+            thread.start()
+            threads.append(thread)
+
+        # for bucket in self.buckets:
+        #     thread = Thread(target=self.exec_tests_in_bucket, args=(bucket,))
+        #     thread.start()
+        #     threads.append(thread)
+
+        for thread in threads:
+            thread.join()
+
+
+        self.file.close()
+
+    # def split_tests_into_buckets(self):
+    #     test_buckets = list()
+    #     for i in range(0, self.proc_count):
+    #         test_buckets.append(list())
+    #     i = 0
+    #     for test in self.tests:
+    #         test_bucket = i % len(test_buckets)
+    #         print(">> " + str(test_bucket))
+    #         test_buckets[test_bucket].append(test)
+    #         i += 1
+    #
+    #
+    #     return test_buckets
+
+    def exec_tests_in_bucket(self):
+        while True:
+            try:
+                self.queue_lock.acquire()
+                if not len(self.tests):
+                    print("Len of tests is: " + str(len(self.tests)))
+                    print("Returning because nothing is left in the queue")
+                    return
+
+                test = self.tests.pop()
+                self.queue_lock.release()
+                print("Added test: " + test)
+
+                out, err = self.get_tests_from_exec_file(self.exec_file, '--filter={test}'.format(test=test))
+
+                print("Finished " + test)
+                print("Err: >> " + str(err))
+
+                print("Out: >> " + str(out))
+
+                try:
+                    self.file_lock.acquire()
+                    self.file.write(str(err))
+                finally:
+                    self.file_lock.release()
+
+            except:
+                traceback.print_exc()
+
+            finally:
+                if self.queue_lock.locked():
+                    self.queue_lock.release()
+                # return
+
+
+
+
+
+
+    def get_tests_from_exec_file(self, test, keys):
+        spell = "{tests_path}/{test} {keys}".format(tests_path=self.workspace_path, test=test, keys=keys)
+
+        print("Spell = " + spell)
+        process = subprocess.Popen(spell.split(" "),
+                                   # shell=True,
+                                   stdout=subprocess.PIPE,
+                                   stderr=subprocess.PIPE
+                                   )
+
+        out, err = process.communicate()
+#        process.wait()
+
+        print("out = " + str(out))
+        print("err = " + str(err))
+
+        return (filter(lambda x: x,  out.split("\n")), err)
+
+
+def main():
+    exec_file =  "pedestrian_routing_tests"
+    runner = IntegrationRunner(exec_file)
+
+
+if __name__ == "__main__":
+    main()