'Verify that the "py-bt" command works'

def test_basic_command(self):

    bt = self.get_stack_trace(script=self.get_sample_script(), cmds_after_breakpoint=['py-bt'])
    self.assertMultilineMatches(bt, '^.*\n#[0-9]+    Frame    0x[0-9a-f]+,    for    file    .*gdb_sample.py,    line    7,    in    bar    \\(a=1,    b=2,    c=3\\)\n                baz\\(a,    b,    c\\)\n#[0-9]+    Frame    0x[0-9a-f]+,    for    file    .*gdb_sample.py,    line    4,    in    foo    \\(a=1,    b=2,    c=3\\)\n                bar\\(a,    b,    c\\)\n#[0-9]+    Frame    0x[0-9a-f]+,    for    file    .*gdb_sample.py,    line    12,    in    <module>    \\(\\)\nfoo\\(1,    2,    3\\)\n')
