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"""
Test my first lldb watchpoint.
"""
import os, time
import unittest2
import lldb
from lldbtest import *
import lldbutil
class HelloWatchpointTestCase(TestBase):
def getCategories (self):
return ['basic_process']
mydir = TestBase.compute_mydir(__file__)
@dsym_test
def test_hello_watchpoint_with_dsym_using_watchpoint_set(self):
"""Test a simple sequence of watchpoint creation and watchpoint hit."""
self.buildDsym(dictionary=self.d)
self.setTearDownCleanup(dictionary=self.d)
self.hello_watchpoint()
@dwarf_test
def test_hello_watchpoint_with_dwarf_using_watchpoint_set(self):
"""Test a simple sequence of watchpoint creation and watchpoint hit."""
self.buildDwarf(dictionary=self.d)
self.setTearDownCleanup(dictionary=self.d)
self.hello_watchpoint()
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Our simple source filename.
self.source = 'main.c'
# Find the line number to break inside main().
self.line = line_number(self.source, '// Set break point at this line.')
# And the watchpoint variable declaration line number.
self.decl = line_number(self.source, '// Watchpoint variable declaration.')
# Build dictionary to have unique executable names for each test method.
self.exe_name = self.testMethodName
self.d = {'C_SOURCES': self.source, 'EXE': self.exe_name}
def hello_watchpoint(self):
"""Test a simple sequence of watchpoint creation and watchpoint hit."""
exe = os.path.join(os.getcwd(), self.exe_name)
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# Add a breakpoint to set a watchpoint when stopped on the breakpoint.
lldbutil.run_break_set_by_file_and_line (self, None, self.line, num_expected_locations=1)
# Run the program.
self.runCmd("run", RUN_FAILED)
# We should be stopped again due to the breakpoint.
# The stop reason of the thread should be breakpoint.
self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
substrs = ['stopped',
'stop reason = breakpoint'])
# Now let's set a write-type watchpoint for 'global'.
# There should be only one watchpoint hit (see main.c).
self.expect("watchpoint set variable -w write global", WATCHPOINT_CREATED,
substrs = ['Watchpoint created', 'size = 4', 'type = w',
'%s:%d' % (self.source, self.decl)])
# Use the '-v' option to do verbose listing of the watchpoint.
# The hit count should be 0 initially.
self.expect("watchpoint list -v",
substrs = ['hit_count = 0'])
self.runCmd("process continue")
# We should be stopped again due to the watchpoint (write type), but
# only once. The stop reason of the thread should be watchpoint.
self.expect("thread list", STOPPED_DUE_TO_WATCHPOINT,
substrs = ['stopped',
'stop reason = watchpoint'])
self.runCmd("process continue")
# Don't expect the read of 'global' to trigger a stop exception.
process = self.dbg.GetSelectedTarget().GetProcess()
if process.GetState() == lldb.eStateStopped:
self.assertFalse(lldbutil.get_stopped_thread(process, lldb.eStopReasonWatchpoint))
# Use the '-v' option to do verbose listing of the watchpoint.
# The hit count should now be 1.
self.expect("watchpoint list -v",
substrs = ['hit_count = 1'])
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()
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