utils: Add single_test.py script

diff --git a/utils/single_test.py b/utils/single_test.py
new file mode 100755 (executable)
index 0000000..be01dd3
--- /dev/null
+++ b/utils/single_test.py
@@ -0,0 +1,76 @@
+#!/usr/bin/env python
+"""
+Convert a single line from test output to run single test command.
+
+E.g:
+    "2: test_download_package_via_metalink (tests.test_yum_package_downloading.TestCaseYumPackageDownloading) ... ok"
+
+To:
+    tests/python/tests/test_yum_repo_downloading.py:TestCaseYumRepoDownloading.test_download_and_update_repo_01
+"""
+
+import os
+import sys
+import argparse
+
+LIBPATH = "./build/src/python/"
+COMMAND = "PYTHONPATH=`readlink -f {libpath}` nosetests{nosever} -s -v {testpath}"
+TEST_PATH_PREFIX = "tests/python"
+
+if __name__ == "__main__":
+
+    parser = argparse.ArgumentParser(description='Convert a single line from '\
+            'python unittesttest output to run command for this single test')
+
+    parser.add_argument('test_out_line', metavar='TESTOUTPUTLINE',
+                        type=str,
+                        help='A single line from python unittesttest output')
+    parser.add_argument('--python3', action='store_true', help='Python3 version')
+    args = parser.parse_args()
+
+    test_out_line = args.test_out_line
+
+    # Remove suffix "... ok" or "... FAIL"
+    test_out_line = test_out_line.split(" ... ")[0]
+
+    # Remove prefix "test_number: "
+    res = test_out_line = test_out_line.split(": ")
+    test_out_line = res[-1]
+
+    # Get test name
+    res = test_out_line.split(" ")
+    if len(res) != 2:
+        print("Bad input line format")
+        sys.exit(1)
+
+    test_name, test_out_line = res
+
+    # Get test case
+    test_out_line = test_out_line.strip().lstrip("(").rstrip(")")
+    res = test_out_line.rsplit(".", 1)
+    if len(res) != 2:
+        print("Bad input line format")
+        sys.exit(1)
+
+    test_out_line, test_case = res
+
+    # Get path
+    test_path = test_out_line.replace(".", "/") + ".py"
+
+    full_path = os.path.join(TEST_PATH_PREFIX, test_path)
+
+    nosever = ""
+    pythonversion = 2
+
+    if (args.python3):
+        nosever = "-3.3"
+        pythonversion = 3
+
+    testpath = "{0}:{1}.{2}".format(full_path, test_case, test_name)
+    libpath = LIBPATH.format(pythonversion=pythonversion)
+
+
+    command = COMMAND.format(libpath=libpath, nosever=nosever, testpath=testpath)
+
+    print(command)
+