"""Test lldb help command."""

import os, time
import unittest
import lldb
import lldbtest

class TestHelpCommand(lldbtest.TestBase):

    mydir = "help"

    def test_simplehelp(self):
        """A simple test of 'help' command and its output."""
        res = lldb.SBCommandReturnObject()
        self.ci.HandleCommand("help", res)
        time.sleep(0.1)
        self.assertTrue(res.Succeeded())
        self.assertTrue(res.GetOutput().startswith(
            'The following is a list of built-in, permanent debugger commands'))

    def test_help_should_not_hang_emacsshell(self):
        """Command 'set term-width 0' should not hang the help command."""
        res = lldb.SBCommandReturnObject()
        self.ci.HandleCommand("set term-width 0", res)
        time.sleep(0.1)
        self.assertTrue(res.Succeeded())
        self.ci.HandleCommand("help", res)
        time.sleep(0.1)
        self.assertTrue(res.Succeeded())
        self.assertTrue(res.GetOutput().startswith(
            'The following is a list of built-in, permanent debugger commands'))


if __name__ == '__main__':
    lldb.SBDebugger.Initialize()
    unittest.main()
    lldb.SBDebugger.Terminate()