Fix running tests coverage.

python/helpers/coverage_runner/__init__.py

@@ -0,0 +1 @@
+__author__ = 'traff'

python/helpers/coverage_runner/run_coverage.py

@@ -0,0 +1,45 @@
+"""Coverage.py's main entrypoint."""
+
+import os
+import sys
+
+bundled_coverage_path = os.getenv('BUNDLED_COVERAGE_PATH')
+if bundled_coverage_path:
+    sys_path_backup = sys.path
+    sys.path = [p for p in sys.path if p != bundled_coverage_path]
+    from coverage.cmdline import main
+    sys.path = sys_path_backup
+else:
+    from coverage.cmdline import main
+
+coverage_file = os.getenv('PYCHARM_COVERAGE_FILE')
+run_cov = os.getenv('PYCHARM_RUN_COVERAGE')
+if os.getenv('JETBRAINS_REMOTE_RUN'):
+    line = 'LOG: PyCharm: File mapping:%s\t%s\n'
+    import tempfile
+    (h, new_cov_file) = tempfile.mkstemp(prefix='pycharm-coverage')
+    print(line%(coverage_file, new_cov_file))
+    print(line%(coverage_file + '.syspath.txt', new_cov_file + '.syspath.txt'))
+    print(line%(coverage_file + '.xml', new_cov_file + '.xml'))
+    coverage_file = new_cov_file
+
+if coverage_file:
+    os.environ['COVERAGE_FILE'] = coverage_file
+if run_cov:
+    a_file = open(coverage_file + '.syspath.txt', mode='w')
+    a_file.write(os.getcwd()+"\n")
+    for path in sys.path: a_file.write(path + "\n")
+    a_file.close()
+
+argv = []
+for arg in sys.argv:
+    if arg.startswith('-m'):
+        argv.append('-m')
+        argv.append(arg[2:])
+    else:
+        argv.append(arg)
+sys.argv = argv
+
+main()
+if run_cov:
+    main(["xml", "-o", coverage_file + ".xml", "--ignore-errors"])