TestStepScripted.py
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"""
Tests stepping with scripted thread plans.
"""
import lldb
import lldbsuite.test.lldbutil as lldbutil
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
class StepScriptedTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
NO_DEBUG_INFO_TESTCASE = True
def setUp(self):
TestBase.setUp(self)
self.main_source_file = lldb.SBFileSpec("main.c")
self.runCmd("command script import Steps.py")
@skipIfReproducer # FIXME: Unexpected packet during (active) replay
def test_standard_step_out(self):
"""Tests stepping with the scripted thread plan laying over a standard
thread plan for stepping out."""
self.build()
self.step_out_with_scripted_plan("Steps.StepOut")
@skipIfReproducer # FIXME: Unexpected packet during (active) replay
def test_scripted_step_out(self):
"""Tests stepping with the scripted thread plan laying over an another
scripted thread plan for stepping out."""
self.build()
self.step_out_with_scripted_plan("Steps.StepScripted")
def step_out_with_scripted_plan(self, name):
(target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(self,
"Set a breakpoint here",
self.main_source_file)
frame = thread.GetFrameAtIndex(0)
self.assertEqual("foo", frame.GetFunctionName())
err = thread.StepUsingScriptedThreadPlan(name)
self.assertTrue(err.Success(), err.GetCString())
frame = thread.GetFrameAtIndex(0)
self.assertEqual("main", frame.GetFunctionName())
def test_misspelled_plan_name(self):
"""Test that we get a useful error if we misspell the plan class name"""
self.build()
(target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(self,
"Set a breakpoint here",
self.main_source_file)
stop_id = process.GetStopID()
# Pass a non-existent class for the plan class:
err = thread.StepUsingScriptedThreadPlan("NoSuchModule.NoSuchPlan")
# Make sure we got a good error:
self.assertTrue(err.Fail(), "We got a failure state")
msg = err.GetCString()
self.assertTrue("NoSuchModule.NoSuchPlan" in msg, "Mentioned missing class")
# Make sure we didn't let the process run:
self.assertEqual(stop_id, process.GetStopID(), "Process didn't run")
@skipIfReproducer # FIXME: Unexpected packet during (active) replay
def test_checking_variable(self):
"""Test that we can call SBValue API's from a scripted thread plan - using SBAPI's to step"""
self.do_test_checking_variable(False)
@skipIfReproducer # FIXME: Unexpected packet during (active) replay
def test_checking_variable_cli(self):
"""Test that we can call SBValue API's from a scripted thread plan - using cli to step"""
self.do_test_checking_variable(True)
def do_test_checking_variable(self, use_cli):
self.build()
(target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(self,
"Set a breakpoint here",
self.main_source_file)
frame = thread.GetFrameAtIndex(0)
self.assertEqual("foo", frame.GetFunctionName())
foo_val = frame.FindVariable("foo")
self.assertTrue(foo_val.GetError().Success(), "Got the foo variable")
self.assertEqual(foo_val.GetValueAsUnsigned(), 10, "foo starts at 10")
if use_cli:
result = lldb.SBCommandReturnObject()
self.dbg.GetCommandInterpreter().HandleCommand(
"thread step-scripted -C Steps.StepUntil -k variable_name -v foo",
result)
self.assertTrue(result.Succeeded())
else:
args_data = lldb.SBStructuredData()
data = lldb.SBStream()
data.Print('{"variable_name" : "foo"}')
error = args_data.SetFromJSON(data)
self.assertTrue(error.Success(), "Made the args_data correctly")
err = thread.StepUsingScriptedThreadPlan("Steps.StepUntil", args_data, True)
self.assertTrue(err.Success(), err.GetCString())
# We should not have exited:
self.assertEqual(process.GetState(), lldb.eStateStopped, "We are stopped")
# We should still be in foo:
self.assertEqual("foo", frame.GetFunctionName())
# And foo should have changed:
self.assertTrue(foo_val.GetValueDidChange(), "Foo changed")