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import os |
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import unittest |
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import tempfile |
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import time |
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import shutil |
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from smartdispatch import utils |
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from smartdispatch.command_manager import CommandManager |
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from subprocess import Popen, call, PIPE |
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from nose.tools import assert_true, assert_equal |
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class TestSmartWorker(unittest.TestCase): |
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def setUp(self): |
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self.commands = ["echo 1", "echo 2", "echo 3", "echo 4"] |
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self._commands_dir = tempfile.mkdtemp() |
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self.logs_dir = tempfile.mkdtemp() |
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self.command_manager = CommandManager(os.path.join(self._commands_dir, "commands.txt")) |
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self.command_manager.set_commands_to_run(self.commands) |
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self.commands_uid = map(utils.generate_uid_from_string, self.commands) |
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def tearDown(self): |
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shutil.rmtree(self._commands_dir) |
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shutil.rmtree(self.logs_dir) |
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def test_main(self): |
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command = ["smart_worker.py", self.command_manager._commands_filename, self.logs_dir] |
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assert_equal(call(command), 0) |
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# Simulate a resume, i.e. re-run the command, the output/error should be concatenated. |
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self.command_manager.set_commands_to_run(self.commands) |
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assert_equal(call(command), 0) |
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# Check output logs |
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filenames = os.listdir(self.logs_dir) |
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outlogs = [os.path.join(self.logs_dir, filename) for filename in filenames if filename.endswith(".out")] |
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for log_filename in outlogs: |
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with open(log_filename) as logfile: |
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# From log's filename (i.e. uid) retrieve executed command associated with this log |
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uid = os.path.splitext(os.path.basename(log_filename))[0] |
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executed_command = self.commands[self.commands_uid.index(uid)] |
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# Since the command was run twice. |
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for _ in range(2): |
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# First line is the datetime of the executed command in comment. |
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line = logfile.readline().strip() |
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assert_true(time.strftime("## %Y-%m-%d %H:%M:") in line) # Don't check seconds. |
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# Second line is the executed command in comment. |
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line = logfile.readline().strip() |
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assert_equal(line, "# " + executed_command) |
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# Next should be the command's output |
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line = logfile.readline().strip() |
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assert_equal(line, executed_command[-1]) # We know those are 'echo' of a digit |
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# Empty line |
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assert_equal(logfile.readline().strip(), "") |
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# Log should be empty now |
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assert_equal("", logfile.read()) |
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# Check error logs |
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errlogs = [os.path.join(self.logs_dir, filename) for filename in filenames if filename.endswith(".err")] |
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for log_filename in errlogs: |
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with open(log_filename) as logfile: |
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# From log's filename (i.e. uid) retrieve executed command associated with this log |
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uid = os.path.splitext(os.path.basename(log_filename))[0] |
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executed_command = self.commands[self.commands_uid.index(uid)] |
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# Since the command was run twice. |
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for _ in range(2): |
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# First line is the datetime of the executed command in comment. |
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line = logfile.readline().strip() |
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assert_true(time.strftime("## %Y-%m-%d %H:%M:") in line) # Don't check seconds. |
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# Second line is the executed command in comment. |
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line = logfile.readline().strip() |
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assert_equal(line, "# " + executed_command) |
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# Empty line |
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assert_equal(logfile.readline().strip(), "") |
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# Log should be empty now |
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assert_equal("", logfile.read()) |
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def test_lock(self): |
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command = ["smart_worker.py", self.command_manager._commands_filename, self.logs_dir] |
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# Lock the commands file before running 'smart_worker.py' |
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with utils.open_with_lock(self.command_manager._commands_filename, 'r+'): |
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process = Popen(command, stdout=PIPE, stderr=PIPE) |
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time.sleep(1) |
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stdout, stderr = process.communicate() |
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assert_equal(stdout, "") |
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assert_true("write-lock" in stderr, msg="Forcing a race condition, try increasing sleeping time above.") |
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assert_true("Traceback" not in stderr) # Check that there are no errors. |
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SMART-Lab /
smartdispatch
