"""
Test that step-inst over a crash behaves correctly.
"""

from __future__ import print_function



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

class CreateDuringStepTestCase(TestBase):

    mydir = TestBase.compute_mydir(__file__)

    def setUp(self):
        TestBase.setUp(self)
        self.breakpoint = line_number('main.cpp', '// Set breakpoint here')

    @expectedFailureWindows("llvm.org/pr24778")
    @expectedFailureAndroid("llvm.org/pr24497", archs=['arm', 'aarch64'])
    @expectedFailureAll(archs=['mips', 'mipsel', 'mips64', 'mips64el'])    # IO error due to breakpoint at invalid address
    def test_step_inst_with(self):
        """Test thread creation during step-inst handling."""
        self.build(dictionary=self.getBuildFlags())
        exe = os.path.join(os.getcwd(), "a.out")

        target = self.dbg.CreateTarget(exe)
        self.assertTrue(target and target.IsValid(), "Target is valid")

        self.bp_num = lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.breakpoint, num_expected_locations=1)

        # Run the program.
        process = target.LaunchSimple(None, None, self.get_process_working_directory())
        self.assertTrue(process and process.IsValid(), PROCESS_IS_VALID)

        # The stop reason should be breakpoint.
        self.assertEqual(process.GetState(), lldb.eStateStopped, PROCESS_STOPPED)
        self.assertEqual(lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint).IsValid(), 1,
                STOPPED_DUE_TO_BREAKPOINT)

        thread = process.GetThreadAtIndex(0)
        self.assertTrue(thread and thread.IsValid(), "Thread is valid")

        # Keep stepping until the inferior crashes
        while process.GetState() == lldb.eStateStopped and not lldbutil.is_thread_crashed(self, thread):
            thread.StepInstruction(False)

        self.assertEqual(process.GetState(), lldb.eStateStopped, PROCESS_STOPPED)
        self.assertTrue(lldbutil.is_thread_crashed(self, thread), "Thread has crashed")
        process.Kill()