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"""
Test the command history mechanism
"""

from __future__ import print_function



import os
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil

class CommandHistoryTestCase(TestBase):

    mydir = TestBase.compute_mydir(__file__)

    @no_debug_info_test
    def test_history(self):
        self.runCmd('command history --clear', inHistory=False)
        self.runCmd('breakpoint list', check=False, inHistory=True) #0
        self.runCmd('register read', check=False, inHistory=True) #1
        self.runCmd('apropos hello', check=False, inHistory=True) #2
        self.runCmd('memory write', check=False, inHistory=True) #3
        self.runCmd('log list', check=False, inHistory=True) #4
        self.runCmd('disassemble', check=False, inHistory=True) #5
        self.runCmd('expression 1', check=False, inHistory=True) #6
        self.runCmd('type summary list -w default', check=False, inHistory=True) #7
        self.runCmd('version', check=False, inHistory=True) #8
        self.runCmd('frame select 1', check=False, inHistory=True) #9

        self.expect ("command history -s 3 -c 3", inHistory=True,
                     substrs = ['3: memory write','4: log list','5: disassemble'])
        
        self.expect ("command history -s 3 -e 3", inHistory=True,
                     substrs = ['3: memory write'])

        self.expect ("command history -s 6 -e 7", inHistory=True,
                     substrs = ['6: expression 1','7: type summary list -w default'])

        self.expect ("command history -c 2", inHistory=True,
                     substrs = ['0: breakpoint list','1: register read'])

        self.expect ("command history -e 3 -c 1", inHistory=True,
                     substrs = ['3: memory write'])

        self.expect ("command history -e 2", inHistory=True,
                     substrs = ['0: breakpoint list','1: register read','2: apropos hello'])

        self.expect ("command history -s 12", inHistory=True,
                     substrs = ['12: command history -s 6 -e 7','13: command history -c 2','14: command history -e 3 -c 1','15: command history -e 2','16: command history -s 12'])

        self.expect ("command history -s end -c 3", inHistory=True,
                     substrs = ['15: command history -e 2','16: command history -s 12','17: command history -s end -c 3'])

        self.expect ("command history -s end -e 15", inHistory=True,
                     substrs = ['15: command history -e 2','16: command history -s 12','17: command history -s end -c 3','command history -s end -e 15'])

        self.expect ("command history -s 5 -c 1", inHistory=True,
                     substrs = ['5: disassemble'])

        self.expect ("command history -c 1 -s 5", inHistory=True,
                     substrs = ['5: disassemble'])

        self.expect ("command history -c 1 -e 3", inHistory=True,
                     substrs = ['3: memory write'])

        self.expect ("command history -c 1 -e 3 -s 5",error=True, inHistory=True,
                     substrs = ['error: --count, --start-index and --end-index cannot be all specified in the same invocation'])